Polycarbonate composition and molded product thereof

Abstract

Disclosed in specific embodiments of the present invention is a polycarbonate composition, comprising: 100 parts by weight of component A consisting of component A-1 and component A-2, wherein the component A-1 is a polycarbonate resin, the component A-2 is a polycarbonate-polyorganosiloxane copolymer, and the polyorganosiloxane in the component A-2 accounts for 0-10 wt% on the basis of the total weight of the component A; 0.5-12 parts by weight of polyorganosiloxane-grafted copolymer rubber particles used as component B; and 0.05-10 parts by weight of component C consisting of component C-1 and component C-2, wherein the component C-1 is a polyorganosiloxane having a linear structure, the component C-2 is a polyorganosiloxane having a branched structure, and the component C-1 accounts for 50-90 wt% on the basis of the total weight of the component C. The polycarbonate composition in the specific embodiments of the present invention has good impact performance and exhibits excellent impact retention resistance in humid and hot environments.

Description

Polycarbonate composition and molded product thereof

[0001] The present application claims priority to the Chinese patent application No. 202411037807.2, filed on July 31, 2024, and entitled "Polycarbonate composition and molded product thereof", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application belongs to the field of polymer materials, and specifically relates to a polycarbonate composition and molded product thereof. BACKGROUND

[0003] Polycarbonate resin (PC) is widely used in mechanical parts, automotive parts, electrical and electronic parts, office equipment parts, etc. due to its excellent properties such as mechanical strength, dimensional stability, and flame retardancy. For the application of these products, it is often necessary to have certain impact resistance, and when used outdoors, the humid and hot environment can easily affect the retention of the impact resistance of the product, so it is necessary to modify it to have good impact resistance while improving its impact resistance retention performance in a humid and hot environment. SUMMARY

[0004] The detailed description of the present application provides a polycarbonate composition and molded product thereof having good impact resistance and excellent impact resistance retention performance in a humid and hot environment, and the specific solutions are as follows:

[0005] A polycarbonate composition, comprising:

[0006] 100 parts by weight of A component composed of A-1 component and A-2 component, wherein the A-1 component is a polycarbonate resin, and the A-2 component is a polycarbonate-polyorganosiloxane copolymer, and the polyorganosiloxane in the A-2 component accounts for 0-10wt% based on the total weight of the A component;

[0007] 0.5-12 parts by weight of polyorganosiloxane graft copolymer rubber particles as B component;

[0008] 0.05-10 parts by weight of C component composed of C-1 component and C-2 component, wherein the C-1 component is a linear structure polyorganosiloxane, and the C-2 component is a branched structure polyorganosiloxane, and the C-1 component accounts for 50-90wt% based on the total weight of the C component.

[0009] Optionally, the polycarbonate of the A-1 component and the polycarbonate part in the A-2 component are independently composed of structural units of the following formula (1):

[0010] In the above formula (1), e is 1-10, R is a linear or branched alkyl group having 1-10 carbon atoms, and X is a divalent organic group.1 and f R 2 are each independently selected from the group consisting of a hydrogen atom, a halogen atom, an alkyl group having 1 to 18 carbon atoms, an alkoxy group having 1 to 18 carbon atoms, a cycloalkyl group having 6 to 20 carbon atoms, a cycloalkoxy group having 6 to 20 carbon atoms, an alkenyl group having 2 to 10 carbon atoms, an aryl group having 6 to 14 carbon atoms, an aryloxy group having 6 to 14 carbon atoms, an aralkyl group having 7 to 20 carbon atoms, an aralkoxy group having 7 to 20 carbon atoms, a nitro group, an aldehyde group, a cyano group, or a carboxyl group, e and f are each independently an integer of 1 to 4, and W is selected from a single bond or at least one group represented by the following general formula (2) :

[0011] In the above formula (2), g R 11 and R 12 , R 13 , R 14 , R 15 , R 16 , h R 17 and R 18 are each independently selected from the group consisting of a hydrogen atom, an alkyl group having 1 to 18 carbon atoms, an aryl group having 6 to 14 carbon atoms, or an aralkyl group having 7 to 20 carbon atoms, R 19 and R 20 are each independently a hydrogen atom, a halogen atom, an alkyl group having 1 to 18 carbon atoms, an alkoxy group having 1 to 10 carbon atoms, a cycloalkyl group having 6 to 20 carbon atoms, a cycloalkoxy group having 6 to 20 carbon atoms, an alkenyl group having 2 to 10 carbon atoms, an aryl group having 6 to 14 carbon atoms, an aryloxy group having 6 to 10 carbon atoms, an aralkyl group having 7 to 20 carbon atoms, an aralkoxy group having 7 to 20 carbon atoms, a nitro group, an aldehyde group, a cyano group, or a carboxyl group, g is an integer of 1 to 10, and h is an integer of 4 to 7;

[0012] The polyorganosiloxane moiety in the A-2 component consists of structural units of the following formula (3) :

[0013] In the above formula (3), R 3 , R 4 , R 5 , R 6 , R 7 and R 8 are each independently selected from the group consisting of a hydrogen atom, an alkyl group having 1 to 12 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 12 carbon atoms, R 9 and R 10each independently selected from a hydrogen atom, a halogen atom, an alkyl group having 1 to 10 carbon atoms, or an alkoxy group having 1 to 10 carbon atoms, p is a positive integer, q is 0 or a positive integer, the average chain length p+q is a natural number of 30 to 50, X is a bivalent aliphatic group having 2 to 8 carbon atoms.

[0014] Optionally, the C-1 component is a polyorganosiloxane of the following formula (4):

[0015] In the above formula (4), R 22 , R 23 , R 26 , R 27 , n R 24 , and n R 25 are each independently selected from a hydrogen atom, an alkyl group having 1 to 12 carbon atoms, an alkoxy group having 1 to 12 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 12 carbon atoms, R 21 , and R 28 are each independently selected from a hydrogen atom, a hydroxyl group, an alkyl group having 1 to 12 carbon atoms, an alkoxy group having 1 to 12 carbon atoms, a substituted or unsubstituted aryl group having 6 to 12 carbon atoms, a hydroxyalkyloxyalkylene group having 1 to 12 carbon atoms, or a hydroxyalkyl group having 1 to 12 carbon atoms, and n is an integer of 1 to 1000.

[0016] Optionally, R 22 , R 23 , R 26 , R 27 , n R 24 , and n R 25 are each independently selected from a hydrogen atom or an alkyl group having 1 to 12 carbon atoms, R 21 , and R 28 are each independently selected from a hydrogen atom, a hydroxyl group, an alkyl group having 1 to 12 carbon atoms, or a hydroxyalkyloxyalkylene group having 1 to 12 carbon atoms.

[0017] Optionally, R 21 , R 22 , R 23 , R 26 , R 27 , n R 24 , and n R 25 are each a methyl group, and R 28 is a hydrogen atom, a methyl group, or a hydroxyl group.

[0018] Optionally, the C-1 component has a kinematic viscosity at 298 K of 10 to 30,000 mm 2 / s.

[0019] Optionally, the C-2 component is a polyorganosiloxane of the following formula (5): M 1 a M 2 b D 1 i D 2 j T 1 k T 2 l Q m (5)

[0020] In the above formula (5), M 1 = R 29 R 30 R 31 SiO 1 / 2 , M 2 = R 32 R 33 R 34 SiO 1 / 2 , D 1 = R 35 R 36 SiO 2 / 2 , D 2 = R 37 R 38 SiO 2 / 2 , T 1 = R 39 SiO 3 / 2 , T 2 = R 40 SiO 3 / 2 , Q = SiO 4 / 2 wherein R 29 , R 30 , R 31 , R 33 , R 34 , R 35 , R 36 , R 38 and R 39 are each independently selected from an alkyl group having from 1 to 12 carbon atoms, an alkoxy group having from 1 to 12 carbon atoms, or a substituted or unsubstituted aryl group having from 6 to 12 carbon atoms, R 32 , R 37 and R 40 are each independently selected from a hydrogen atom, a hydroxyl group, an alkyl group having from 1 to 12 carbon atoms, or an alkoxy group having from 1 to 12 carbon atoms, wherein a, b, i, j, k, 1, m are natural numbers, and satisfy 1≤a+b, 1≤m.

[0021] Optionally, i, j, k, 1 are 0.

[0022] Optionally, the kinematic viscosity of the mixed C component at 298K is 200,000-900,000 mm 2 / s.

[0023] Optionally, the viscosity average molecular weight of the polycarbonate is 15,000-30,000.

[0024] Optionally, the viscosity average molecular weight of the polycarbonate-polyorganosiloxane copolymer is 15,000-27,000.

[0025] Optionally, the mass percentage of the polyorganosiloxane in the B component in the B component is Y%, and the average particle size of the B component is Z nm, Y and Z satisfy the following conditions:

[0026] Y≥-Z / 10+70, wherein Y≥25, 1000≥Z≥200.

[0027] Optionally, the polyorganosiloxane in the A-2 component accounts for 0-5.5 wt% based on the total weight of the A component.

[0028] Optionally, the C-1 component accounts for 60-80 wt% based on the total weight of the C component.

[0029] Optionally, the polycarbonate composition further comprises: 0.01-12 parts by weight of a flame retardant as a D component.

[0030] Optionally, the flame retardant is a halogen-free flame retardant.

[0031] Optionally, the halogen-free flame retardant is at least one of a phosphazene compound, an alkali metal sulfonate, or an alkaline earth metal sulfonate.

[0032] Optionally, the content of the phosphazene ring trimer of the phosphazene flame retardant is 98.5 mol% or more.

[0033] Optionally, the polycarbonate composition further comprises 0.1-1 parts by weight of a fluorine-containing anti-dripping agent as an E component.

[0034] Optionally, the flame retardancy of the polycarbonate composition after a water immersion experiment is tested according to the UL-94V test standard, and the water immersion experiment is according to the UL746C standard formulated by the American UL company, wherein the temperature is 82±1℃, and the immersion time is 168 hours.

[0035] Optionally, the retention rate of the notched Charpy impact strength at 23℃ of the polycarbonate composition after a damp heat experiment is 50% or more, and the damp heat experiment is that the notched Charpy impact sample is placed in an environmental test chamber at 85℃, 85% RH for 1000 hours.

[0036] Optionally, the notched Charpy impact strength retention rate is 70% or more.

[0037] Optionally, the polycarbonate resin of the A-1 component includes a recycled polycarbonate resin obtained by recycling a molded product of polycarbonate.

[0038] A molded product processed from the polycarbonate composition described above.

[0039] The polycarbonate composition of the embodiment of the present application includes 100 parts by weight of an A component composed of an A-1 component which is a polycarbonate resin and an A-2 component which is a polycarbonate-polyorganosiloxane copolymer, the polyorganosiloxane in the A-2 component accounting for 0 to 10% by weight based on the total weight of the A component; 0.5 to 12 parts by weight of a polyorganosiloxane graft copolymer rubber particle as a B component; and 0.05 to 10 parts by weight of a C component composed of a C-1 component which is a linear polycarbonate and a C-2 component which is a branched polycarbonate, the C-1 component accounting for 50 to 90% by weight based on the total weight of the C component. The polycarbonate composition of the embodiment of the present application has good impact properties and excellent impact retention properties in a humid heat environment. EMBODIMENT

[0040] The embodiment of the present application provides a polycarbonate composition including:

[0041] 100 parts by weight of an A component composed of an A-1 component which is a polycarbonate resin and an A-2 component which is a polycarbonate-polyorganosiloxane copolymer, the polyorganosiloxane in the A-2 component accounting for 0 to 10% by weight based on the total weight of the A component;

[0042] 0.5 to 12 parts by weight of a polyorganosiloxane graft copolymer rubber particle as a B component;

[0043] 0.05 to 10 parts by weight of a C component composed of a C-1 component which is a linear polycarbonate and a C-2 component which is a branched polycarbonate, the C-1 component accounting for 50 to 90% by weight based on the total weight of the C component.

[0044] The polycarbonate composition of the present embodiment has good impact resistance by 100 parts by weight of A components consisting of A-1 components which are polycarbonate resins and A-2 components which are polycarbonate-polyorganosiloxane copolymers, the polyorganosiloxane in the A-2 components accounting for 0 to 10% by weight based on the total weight of the A components, and 0.5 to 12 parts by weight of B components which are polyorganosiloxane graft copolymer rubber particles, and has better impact resistance and excellent impact resistance retention in a humid heat environment by further including 0.05 to 10 parts by weight of C components consisting of C-1 components which are linear polyorganosiloxanes and C-2 components which are branched polyorganosiloxanes, the C-1 components accounting for 50 to 90% by weight based on the total weight of the C components.

[0045] The polycarbonate composition of the present embodiment, in some embodiments, the polycarbonate of the A-1 components and the polycarbonate portion of the A-2 components each independently consists of structural units of the following formula (1):

[0046] In the above formula (1), e R 1 and f R 2 are each independently selected from a hydrogen atom, a halogen atom, an alkyl group having 1 to 18 carbon atoms, an alkoxy group having 1 to 18 carbon atoms, a cycloalkyl group having 6 to 20 carbon atoms, a cycloalkoxy group having 6 to 20 carbon atoms, an alkenyl group having 2 to 10 carbon atoms, an aryl group having 6 to 14 carbon atoms, an aryloxy group having 6 to 14 carbon atoms, an aralkyl group having 7 to 20 carbon atoms, an aralkoxy group having 7 to 20 carbon atoms, a nitro group, an aldehyde group, a cyano group, or a carboxyl group, e and f are each independently an integer of 1 to 4, and W is selected from a single bond or at least one of the groups represented by the following general formula (2):

[0047] In the above formula (2), g R 11 and R 12 , R 13 , R 14 , R 15 , R 16 , h R 17 and R 18 are each independently selected from a hydrogen atom, an alkyl group having 1 to 18 carbon atoms, an aryl group having 6 to 14 carbon atoms, or an aralkyl group having 7 to 20 carbon atoms, R 19 and R 20each independently is a hydrogen atom, a halogen atom, an alkyl group having 1 to 18 carbon atoms, an alkoxy group having 1 to 10 carbon atoms, a cycloalkyl group having 6 to 20 carbon atoms, a cycloalkoxy group having 6 to 20 carbon atoms, an alkenyl group having 2 to 10 carbon atoms, an aryl group having 6 to 14 carbon atoms, an aryloxy group having 6 to 10 carbon atoms, an aralkyl group having 7 to 20 carbon atoms, an aralkyloxy group having 7 to 20 carbon atoms, a nitro group, an aldehyde group, a cyano group, or a carboxyl group, g is an integer of 1 to 10, and h is an integer of 4 to 7;

[0048] The polyorganosiloxane moiety in the A-2 component consists of structural units of the following formula (3):

[0049] In the above formula (3), R 3 , R 4 , R 5 , R 6 , R 7 , and R 8 are each independently selected from a hydrogen atom, an alkyl group having 1 to 12 carbon atoms, or an aromatic group having 6 to 12 carbon atoms, R 9 and R 10 are each independently selected from a hydrogen atom, a halogen atom, an alkyl group having 1 to 10 carbon atoms, or an alkoxy group having 1 to 10 carbon atoms, p is a positive integer, q is 0 or a positive integer, the average chain length p+q is a natural number of 30 to 50, and X is a divalent aliphatic group having 2 to 8 carbon atoms.

[0050] The polycarbonate composition of the present embodiment, in some embodiments, the polycarbonate resin as the A-1 component and the polycarbonate-polyorganosiloxane copolymer as the A-2 component total 100 parts by weight, wherein the polycarbonate resin as the A-1 component can be 0 parts by weight, that is, 100 parts by weight is completely the polycarbonate-polyorganosiloxane copolymer as the A-2 component, in some embodiments, the polycarbonate resin as the A-1 component and the polycarbonate-polyorganosiloxane copolymer as the A-2 component total 100 parts by weight, wherein the polycarbonate-polyorganosiloxane copolymer as the A-2 component can be 0 parts by weight, that is, 100 parts by weight is completely the polycarbonate resin as the A-1 component.

[0051] The polycarbonate composition of the present embodiment, in some embodiments, the polyorganosiloxane in the A-2 component accounts for 0 to 5.5 wt% based on the total weight of the A component, and specific examples can include 0 wt%, 0.5 wt%, 1 wt%, 1.5 wt%, 2 wt%, 2.5 wt%, 3 wt%, 3.5 wt%, 4 wt%, 4.5 wt%, 5 wt%, or 5.5 wt%, and the like.

[0052] The polycarbonate composition of the present embodiment, in some embodiments, the polyorganosiloxane in the A-2 component is 0.5 to 50 wt% of the polycarbonate- polyorganosiloxane copolymer, further 5 to 10 wt%, and more further 6 to 9 wt%. The polyorganosiloxane content of the polycarbonate-polyorganosiloxane copolymer can be calculated by nuclear magnetic resonance (NMR) measurement.

[0053] The polycarbonate composition of the present embodiment, the halogen atom, for example, can be a fluorine atom, a chlorine atom, or a bromine atom, and the like.

[0054] The polycarbonate composition of the present embodiment, the alkyl group having 1 to 18 carbon atoms, for example, can be a methyl group, an ethyl group, a propyl group, a butyl group, a pentyl group, a hexyl group, a heptyl group, an octyl group, a nonyl group, a decyl group, a dodecyl group, or a tetradecyl group, and the like.

[0055] The polycarbonate composition of the present embodiment, the alkoxy group having 1 to 18 carbon atoms, for example, can be a methoxy group, an ethoxy group, a propoxy group, a butoxy group, a pentoxy group, a hexyloxy group, or an octyloxy group, and the like.

[0056] The polycarbonate composition of the present embodiment, the cycloalkyl group having 6 to 20 carbon atoms, for example, can be a cyclohexyl group or a cyclooctyl group, and the like.

[0057] The polycarbonate composition of the present embodiment, the cycloalkoxy group having 6 to 20 carbon atoms, for example, can be a cyclohexyloxy group or a cyclooctyloxy group, and the like.

[0058] The polycarbonate composition of the present embodiment, the alkenyl group having 2 to 10 carbon atoms, for example, can be a vinyl group, a propenyl group, a butenyl group, or a pentenyl group, and the like.

[0059] The polycarbonate composition of the present embodiment, the aryl group having 6 to 14 carbon atoms, for example, can be a phenyl group or a naphthyl group, and the like.

[0060] The polycarbonate composition of the present embodiment, the aryloxy group having 6 to 14 carbon atoms, for example, can be a phenoxy group or a naphthyloxy group, and the like.

[0061] The polycarbonate composition of the present embodiment, the aralkyl group having 7 to 20 carbon atoms, for example, can be a benzyl group or a phenethyl group, and the like.

[0062] The polycarbonate composition of the present embodiment, the aralkyloxy group having 7 to 20 carbon atoms, for example, can be a benzyloxy group or a phenethyloxy group, and the like.

[0063] The alkyl group having 1 to 12 carbon atoms in the polycarbonate composition of the present embodiment can be, for example, methyl, ethyl, propyl, butyl, pentyl, hexyl, heptyl, octyl, nonyl, decyl, dodecyl, or the like.

[0064] The substituted or unsubstituted aryl group having 6 to 12 carbon atoms in the polycarbonate composition of the present embodiment can be, for example, phenyl or naphthyl, and as the substituent, an alkyl group having 1 to 12 carbon atoms such as methyl, ethyl, propyl, butyl, pentyl, or hexyl can be used.

[0065] The polycarbonate composition of the present embodiment, in some embodiments, R 3 , R 4 , R 5 , R 6 , R 7 , and R 8 are independently selected from the group consisting of hydrogen, a halogen atom, a hydroxyl group, an alkyl group having 1 to 10 carbon atoms, an alkoxy group having 1 to 10 carbon atoms, and a substituted or unsubstituted aryl group having 6 to 12 carbon atoms.

[0066] The alkyl group having 1 to 10 carbon atoms in the polycarbonate composition of the present embodiment can be, for example, methyl, ethyl, propyl, butyl, pentyl, hexyl, heptyl, octyl, nonyl, decyl, dodecyl, or the like.

[0067] The alkoxy group having 1 to 10 carbon atoms in the polycarbonate composition of the present embodiment can be, for example, methoxy, ethoxy, propoxy, butoxy, pentoxy, hexyloxy, heptyloxy, or octyloxy.

[0068] The polycarbonate composition of the present embodiment, in some embodiments, p is 5 to 100, further 30 to 60, q is 0 to 80, further 0 to 50, and p + q is 5 to 70, further 20 to 60, and more further 30 to 50.

[0069] The divalent aliphatic group in the polycarbonate composition of the present embodiment can be, for example, an alkylene group having 2 to 8 carbon atoms, specifically ethylene, propylene, or butylene.

[0070] The polycarbonate composition of the present embodiment, in some embodiments, X is propylene, R 9 , and R 10 are hydrogen or methoxy.

[0071] The polycarbonate composition of the present embodiment, in some embodiments, is prepared from a dihydric phenol and / or an aliphatic diol and a carbonate precursor, and as a specific method of preparation, for example, interfacial polymerization, melt transesterification, solid state transesterification of a carbonate prepolymer, ring-opening polymerization of a cyclic carbonate compound, and the like.

[0072] The polycarbonate composition of the present embodiment, in some embodiments, the dihydric phenol is, for example, hydroquinone, resorcinol, 4,4'-dihydroxydiphenyl biphenyl, bis(4-hydroxyphenyl)methane, bis{(4-hydroxy-3,5-dimethyl)phenyl}methane, 1,1-bis(4-hydroxyphenyl)ethane, 1,1-bis(4-hydroxyphenyl)-1-phenylethane, 2,2-bis(4-hydroxyphenyl)propane (commonly known as bisphenol A), 2,2-bis{(4-hydroxy-3-methyl)phenyl}propane, 2,2-bis{(4-hydroxy-3,5-dimethyl)phenyl}propane, 2,2-bis{(3-isopropyl-4-hydroxy)phenyl}propane, 2,2-bis{(4-hydroxy-3-phenyl)phenyl}propane, 2,2-bis(4-hydroxyphenyl)butane, 2,2-bis(4-hydroxyphenyl)-3-methylbutane, 2,2-bis-(4-hydroxyphenyl)-3,3-dimethylbutane, 2,4-bis(4-hydroxyphenyl)-2-methylbutane, 2,2-bis(4-hydroxyphenyl)pentane, 2,2-bis(4-hydroxyphenyl)-4-methylpentane, 1,1-bis(4-hydroxyphenyl)cyclohexane, 1,1-bis(4-hydroxyphenyl)-4-isopropylcyclohexane, 1,1-bis(4-hydroxyphenyl)-3,3,5-trimethylcyclohexane, 9,9-bis(4-hydroxyphenyl)fluorene, 9,9-bis{(4-hydroxy-3-methyl)phenyl}fluorene, α,α'-bis(4-hydroxyphenyl)-o-diisopropylbenzene, α,α'-bis(4-hydroxyphenyl)-m-diisopropylbenzene, α,α'-bis(4-hydroxyphenyl)-p-diisopropylbenzene, 1,3-bis(4-hydroxyphenyl)5,7-dimethyladamantane, 4,4'-dihydroxydiphenyl sulfone, 4,4'-dihydroxydiphenyl sulfoxide, 4,4'-dihydroxydiphenyl sulfide, 4,4'-dihydroxydiphenyl ketone, 4,4'-dihydroxydiphenyl ether, and 4,4'-dihydroxydiphenyl ester, and the like, and these dihydric phenols can be used alone or in combination of two or more, and in some embodiments, the dihydric phenol is bisphenol A, in consideration of impact resistance.

[0073] In some specific embodiments of the polycarbonate composition of the present invention, the aliphatic diol may be, for example, 2,2-bis-(4-hydroxycyclohexyl)-propane, 1,14-tetradecanediol, octaethylene glycol, 1,16-hexadecanediol, 4,4'-bis(2-hydroxyethoxy)biphenyl, bis{(2-hydroxyethoxy)phenyl}methane, 1,1-bis{(2-hydroxyethoxy)phenyl}ethane, 1,1-bis{(2-hydroxyethoxy)phenyl}-1-phenylethane, 2,2-bis{(2-hydroxyethoxy)phenyl}propane, 2,2-bis{(2-hydroxyethoxy)phenyl}propane, etc. 1,1-bis{(2-hydroxyethoxy)phenyl}-3,3,5-trimethylcyclohexane, 2,2-bis{4-(2-hydroxyethoxy)-3,3'-biphenyl}propane, 2,2-bis{(2-hydroxyethoxy)-3-isopropylphenyl}propane, 2,2-bis{3-tert-butyl-4-(2-hydroxyethoxy)phenyl}propane, 2,2-bis{(2-hydroxyethoxy)phenyl}butane, 2,2-bis{(2-hydroxyethoxy)phenyl}-4-methylpentane, 2,2-bis{(2-hydroxyethoxy)phenyl}octane, 1,1-bis{(2- 2,2-bis{3-bromo-4-(2-hydroxyethoxy)phenyl}propane, 2,2-bis{3,5-dimethyl-4-(2-hydroxyethoxy)phenyl}propane, 2,2-bis{3-cyclohexyl-4-(2-hydroxyethoxy)phenyl}propane, 1,1-bis{3-cyclohexyl-4-(2-hydroxyethoxy)phenyl}cyclohexane, bis{(2-hydroxyethoxy)phenyl}diphenylmethane, 9,9-bis{(2-hydroxyethoxy)phenyl}fluorene, 9,9-bis{4-(2-hydroxyethoxy)-3-methylphenyl}fluorene, 1,1-bis{(2-... 1,1-Bis{(2-hydroxyethoxy)phenyl}cyclohexane, 4,4'-bis(2-hydroxyethoxy)phenyl}cyclopentane, 4,4'-bis(2-hydroxyethoxy)diphenyl ether, 4,4'-bis(2-hydroxyethoxy)-3,3'-dimethyldiphenyl ether, 1,3-bis[2-{(2-hydroxyethoxy)phenyl}propyl]benzene, 1,4-bis[2-{(2-hydroxyethoxy)phenyl}propyl]benzene, 1,4-bis{(2-hydroxyethoxy)phenyl}cyclohexane, 1,3-bis{(2-hydroxyethoxy)phenyl}cyclohexane, 4,8-bis{(2-hydroxyethoxy)phenyl}tricyclo[5.2.1.0] 2,6 Decane, 1,3-bis{(2-hydroxyethoxy)phenyl}-5,7-dimethyladamantane, 3,9-bis(2-hydroxy-1,1-dimethylethyl)-2,4,8,10-tetraoxospirocyclic(5,5)undecane, 1,4:3,6-didehydro-D-sorbitol (isosorbitol), 1,4:3,6-didehydro-D-mannitol (isomannitol), or 1,4:3,6-didehydro-L-idoleol (isoidoleol), etc.

[0074] The polycarbonate composition of the present embodiment, in some embodiments, the carbonate precursor can be used, for example, carbonyl halide, carbonate or haloformate, etc., specifically, for example, phosgene, diphenyl carbonate or dihaloformate of dihydric phenol, etc., in some embodiments, the carbonate precursor is phosgene or diphenyl carbonate, considering the facilitation of industrialization.

[0075] The polycarbonate composition of the present embodiment, in some embodiments, the viscosity average molecular weight of the polycarbonate is 15000-30000, in some embodiments, the viscosity average molecular weight of the polycarbonate is 18000-25000.

[0076] The polycarbonate composition of the present embodiment, in some embodiments, the viscosity average molecular weight of the polycarbonate-polysiloxane copolymer is 15000-27000, in some embodiments, the viscosity average molecular weight of the polycarbonate-polysiloxane copolymer is 18000-25000.

[0077] The polycarbonate composition of the present embodiment, the viscosity average molecular weight is obtained as follows: first, using Ostwald viscometer, the specific viscosity (η SP ) calculated by the following formula is obtained from the solution obtained by dissolving 0.7 g of the aromatic polycarbonate in 100 mL of dichloromethane at 20°C.

[0078] Specific viscosity (η SP ) = (t-t0) / t0

[0079] [t0 is the dropping seconds of dichloromethane, t is the dropping seconds of the sample solution]

[0080] The viscosity average molecular weight M is calculated from the specific viscosity (η SP ) obtained by the following formula.

[0081] η SP / c = [η] + 0.45 x [η] 2 c (where [η] is the limiting viscosity)

[0082] [η] = 1.23 x 10 -4 M 0.83

[0083] Where c = 0.7.

[0084] The polycarbonate composition of the present embodiment, in some embodiments, as a raw material of the polycarbonate, a used polycarbonate product in the market, that is, so-called recycled polycarbonate can be used. As a preferable example of the recycling source, a window material represented by a soundproof wall, an automobile window, a transparent roof panel, and an automobile sunroof, a windshield, an automobile headlamp lens, a container such as a water bottle, a light guide plate, a spectacle lens, and even an optical disc can be used as the recycling source. In addition, a particle prepared by pulverizing or dissolving a defective product, a gate, a runner, and the like during production can also be used as a raw material of the recycled polycarbonate.

[0085] The polycarbonate composition of the present embodiment, in some embodiments, the polyorganosiloxane graft copolymer rubber particles include a polyorganosiloxane rubber component and a graft copolymer monomer component, in some embodiments, the polyorganosiloxane rubber component is a polyorganosiloxane rubber or a polyorganosiloxane-(meth)acrylate (IPN type) composite rubber, the (meth)acrylate can be, for example, methyl acrylate, ethyl acrylate, n-propyl acrylate, n-butyl acrylate, 2-ethylhexyl acrylate, and other alkyl acrylates, and hexyl methacrylate, 2-ethylhexyl methacrylate, n-lauryl methacrylate, and the like, in some embodiments, the graft copolymer monomer component is a (meth)acrylate, in some embodiments, the graft copolymer monomer component can also be an aromatic vinyl compound or a vinyl cyanide compound, and the like.

[0086] The polycarbonate composition of the present embodiment, in some embodiments, the polyorganosiloxane in the polyorganosiloxane graft copolymer rubber particles is a polydimethylsiloxane.

[0087] The polycarbonate composition of the present embodiment, in some embodiments, the polyorganosiloxane graft copolymer rubber particles as the B component are 1 to 7 parts by weight.

[0088] The polycarbonate composition of the present embodiment, in some embodiments, in view of more favoring the impact resistance of the article of the polycarbonate composition, the mass percentage content of the polyorganosiloxane in the B component is Y%, and the average particle size of the B component is Z nm, Y and Z satisfy the following conditions:

[0089] Y ≥ -Z / 10 + 70, where Y ≥ 25, 1000 ≥ Z ≥ 200.

[0090] The polycarbonate composition of the present embodiment, in some embodiments, the average particle size Z nm of the B component is 250 to 750 nm, in some embodiments, the average particle size Z nm of the B component is 300 to 500 nm.

[0091] The polycarbonate composition of the present embodiment, in some embodiments, the mass percentage Y% of the polyorganosiloxane in the B component in the B component is 25 to 75 wt%, in some embodiments, the mass percentage Y% of the polyorganosiloxane in the B component in the B component is 30 to 70 wt%.

[0092] The polycarbonate composition of the present embodiment, the average particle size of the polyorganosiloxane graft copolymer can be measured by the following method:

[0093] After the sample to be measured is configured into a 3 wt% solution with deionized water, the number average particle size is measured using a particle size distribution instrument (MATEC CHDF2000 type). The median particle diameter of the particles is taken as the measured number average particle diameter Dn.

[0094] The instrument setting conditions are as follows:

[0095] Sample carrier: capillary for particle separation (trade name: C-202)

[0096] Carrier liquid: special carrier liquid (trade name: 2XGR500)

[0097] Carrier liquid: neutral

[0098] Carrier flow rate: 1.4 ml / min

[0099] Carrier pressure: 4,000 psi (2,600 kPa)

[0100] Measurement temperature: 35°C

[0101] Sample usage: 0.1 mL.

[0102] The mass percentage of the organosiloxane in the polyorganosiloxane graft copolymer rubber particles can be measured by the test method of silicon nuclear magnetic resonance (29Si-NMR), and the specific embodiment of nuclear magnetic resonance is as follows:

[0103] Tris(2,4-pentanedione)chromium(III) is added to deuterated chloroform or dimethyl sulfoxide-D6 to prepare a solution at a concentration of 0.5 wt%, which is used as a solvent for29Si-NMR measurement. If the polyorganosiloxane is not soluble in deuterated chloroform or dimethyl sulfoxide-D6, a heavy water solution of chromium(III) chloride hexahydrate at a concentration of 0.5 wt% is used as a solvent for29Si-NMR measurement. 1.5 g of the sample to be measured is weighed into 2.5 ml of the above-mentioned solvent for29Si-NMR measurement, dissolved, and then placed in an NMR tube. Subsequently,29Si-NMR (JNM-ECS400, TUNABLE (10), JEOL Ltd., AT10 probe) is used to perform measurement at ambient temperature of 25°C with a relaxation delay of 15 seconds, a number of scans of 1024, a non-gated decoupling pulse method (NNE) measurement mode, and a spinless setting. The content of the organosiloxane in the copolymer can be calculated from the signal response intensity of each component.

[0104] The polycarbonate composition of the present embodiment, in some embodiments, the C-1 component is a polyorganosiloxane of the following formula (4):

[0105] In the above formula (4), R 22 , R 23 , R 26 , R 27 , n R 24 , and n R 25 are each independently selected from a hydrogen atom, an alkyl group having 1 to 12 carbon atoms, an alkoxy group having 1 to 12 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 12 carbon atoms, R 21 , and R 28 ​each independently selected from the group consisting of hydrogen, hydroxyl, alkyl having 1 to 12 carbon atoms, alkoxy having 1 to 12 carbon atoms, substituted or unsubstituted aryl having 6 to 12 carbon atoms, hydroxyalkyloxyalkylene having 1 to 12 carbon atoms, or hydroxyalkyl having 1 to 12 carbon atoms, and n is an integer from 1 to 1000. The alkyl having 1 to 12 carbon atoms can be, for example, methyl, ethyl, propyl, butyl, pentyl, hexyl, heptyl, octyl, nonyl, decyl, or dodecyl, the alkoxy having 1 to 12 carbon atoms can be, for example, methoxy, ethoxy, propoxy, butoxy, pentoxy, hexyloxy, heptyloxy, octyloxy, nonyloxy, decyloxy, or dodecyloxy, the substituted or unsubstituted aryl having 6 to 12 carbon atoms can be, for example, phenyl or naphthyl, and as a substituent, for example, alkyl having 1 to 12 carbon atoms such as methyl, ethyl, propyl, butyl, pentyl, or hexyl, the hydroxyalkyloxyalkylene is a group consisting of hydroxyalkyl, oxygen atom, and alkylene in sequence, and the hydroxyalkyl can be, for example, hydroxymethyl (HO-CH2-), hydroxyethyl (HO-CH2-CH2-), or hydroxypropyl (HO-CH2-CH2-CH2-). In some embodiments, the R 22 , R 23 , R 26 , R 27 , n R 24 , and n R 25 are each independently selected from the group consisting of hydrogen or alkyl having 1 to 12 carbon atoms, the R 21 , and R 28 are each independently selected from the group consisting of hydrogen, hydroxyl, alkyl having 1 to 12 carbon atoms, or hydroxyalkyloxyalkylene having 1 to 12 carbon atoms, and in some embodiments, the R 21 , R 22 , R 23 , R 26 , R 27 , n R 24 , and n R 25 are methyl, and the R 28 is hydrogen, methyl, or hydroxyl.

[0106] In some embodiments of the polycarbonate composition of the present application, the number average molecular weight of the C-1 component is between 300 and 100,000, and in some embodiments, the number average molecular weight of the C-1 component is between 500 and 50,000. When the number average molecular weight of the C-1 component is less than 300, the volatility is too high and negatively affects the overall performance of the polycarbonate composition. When the number average molecular weight of the C-1 component is greater than 100,000, the dispersibility of the C-1 component in the polycarbonate composition is significantly reduced.

[0107] The polycarbonate composition of the present application, in some embodiments, the kinematic viscosity of the C-l component at 298 K room temperature is controlled between 10 to 30,000 mm 2 / s, in some embodiments, between 15 to 10,000 mm 2 / s, in some embodiments, between 30 to 5,000 mm 2 / s. When the kinematic viscosity of the C-l component is lower than 10 mm 2 / s, the volatility is too high and will negatively affect the overall performance of the polycarbonate composition. When the kinematic viscosity of the C-l component is higher than 30,000 mm 2 / s, the dispersibility of the C-l component in the polycarbonate composition will be significantly reduced.

[0108] The polycarbonate composition of the present application, in some embodiments, the C-2 component is a polyorganosiloxane of the following formula (5): M 1 a M 2 b D 1 i D 2 j T 1 k T 2 l Q m (5)

[0109] In the above formula (5), M 1 = R 29 R 30 R 31 SiO 1 / 2 , M 2 = R 32 R 33 R 34 SiO 1 / 2 , D 1 = R 35 R 36 SiO 2 / 2 , D 2 = R 37 R 38 SiO 2 / 2 , T 1 = R 39 SiO 3 / 2 , T 2 = R 40 SiO 3 / 2 , Q = SiO 4 / 2 wherein R 29 , R 30 , R 31R 33 R 34 R 35 R 36 R 38 R 39 each independently selected from an alkyl group having a carbon number of 1 to 12, an alkoxy group having a carbon number of 1 to 12, or a substituted or unsubstituted aryl group having a carbon number of 6 to 12, R 32 R 37 R 40 each independently selected from a hydrogen atom, a hydroxyl group, an alkyl group having a carbon number of 1 to 12, or an alkoxy group having a carbon number of 1 to 12, wherein a, b, i, j, k, l, m are natural numbers, and satisfy 1≤a+b, 1≤m. The alkyl group having a carbon number of 1 to 12 can be, for example, a methyl group, an ethyl group, a propyl group, a butyl group, a pentyl group, a hexyl group, a heptyl group, an octyl group, a nonyl group, a decyl group, or a dodecyl group, and the like, the alkoxy group having a carbon number of 1 to 12 can be, for example, a methoxy group, an ethoxy group, a propoxy group, a butoxy group, a pentoxy group, a hexyloxy group, a heptyloxy group, an octyloxy group, a nonyloxy group, a decyloxy group, or a dodecyloxy group, and the like, the substituted or unsubstituted aryl group having a carbon number of 6 to 12 can be, for example, a phenyl group or a naphthyl group, and the like, and as a substituent, an alkyl group having a carbon number of 1 to 12 such as a methyl group, an ethyl group, a propyl group, a butyl group, a pentyl group, or a hexyl group, and the like can be used. In some embodiments, R 29 R 30 R 31 R 33 R 34 R 35 R 36 R 38 R 39 are each a methyl group, and R 32 R 37 R 40 each independently selected from a hydrogen atom, a hydroxyl group, a methoxy group, or an ethoxy group. In some embodiments, i, j, k, l are 0, and in some embodiments, b, i, j, k, l are 0.

[0110] In some embodiments of the polycarbonate composition of the present application, the C-1 component and the C-2 component can be added separately, and in some embodiments, the C-1 component and the C-2 component are added after being blended to form a high viscosity fluid mixture. In some embodiments, the high viscosity fluid formed by blending the C-1 component and the C-2 component has a kinematic viscosity at 298 K room temperature of between 200,000 and 900,000 mm 2 / s, and in some embodiments, between 200,000 and 600,000 mm 2 / s. In some embodiments, the high viscosity fluid formed by blending the C-1 component and the C-2 component has a kinematic viscosity at 298 K room temperature of less than 200,000 mm2 When the kinematic viscosity is greater than 900,000 mJ / s, the flame-retardant properties of the polycarbonate composition after flame-retardant modification are difficult to maintain. 2 At a speed of / s, the production performance of the polycarbonate composition when mixed with other powder components is prone to decline.

[0111] In some specific embodiments of the polycarbonate composition of the present invention, the C-1 component accounts for 60 to 80 wt% based on the total weight of the C component, for example, 60 wt%, 65 wt%, 70 wt%, 75 wt%, or 80 wt%, etc.

[0112] In some specific embodiments of the polycarbonate composition of the present invention, the polycarbonate composition further includes: 0.01 to 12 parts by weight of flame retardant as component D; in some specific embodiments, taking into account the influence on impact retention performance and flame retardant performance, the flame retardant as component D is 0.05 to 6 parts by weight.

[0113] In some embodiments of the polycarbonate composition of this invention, the flame retardant is a halogen-free flame retardant. In other embodiments, the halogen-free flame retardant is at least one of a phosphazene compound, an alkali metal sulfonate, or an alkaline earth metal sulfonate. Using at least one of a phosphazene compound, an alkali metal sulfonate, or an alkaline earth metal sulfonate in combination can achieve excellent flame retardancy while maintaining good impact resistance in humid and hot environments, with flame retardancy reaching V-0 level before and after water immersion tests. In some embodiments, the halogen-free flame retardant is a phosphazene compound, and considering the influence on impact resistance and flame retardancy, the phosphazene compound is 1 to 6 parts by weight. In other embodiments, the halogen-free flame retardant is at least one of an alkali metal sulfonate or an alkaline earth metal sulfonate, and the alkali metal sulfonate or alkaline earth metal sulfonate is 0.05 to 0.5 parts by weight.

[0114] In some specific embodiments of the polycarbonate composition of the present invention, the phosphazene flame retardant has the following structure:

[0115] In the formula X 1 and X 2 Each component is individually aryl or aryloxy, specifically phenyl or phenoxy, where r is an integer from 3 to 10. In some embodiments, the content of the phosphazene cyclic trimer (k=3) in the phosphazene flame retardant is 90 mol% or more; in other embodiments, the content of the phosphazene cyclic trimer (k=3) in the phosphazene flame retardant is 98.5 mol% or more.

[0116] The polycarbonate composition according to the present embodiment, in some embodiments, the alkali metal sulfonate or the alkaline earth metal sulfonate can use a fluorinated organic alkali metal or alkaline earth metal sulfonate and other alkali metal or alkaline earth metal sulfonate, wherein the non-fluorinated organic alkali metal or alkaline earth metal sulfonate is preferred.

[0117] The polycarbonate composition according to the present embodiment, the non-fluorinated organic alkali metal or alkaline earth metal sulfonate can be, for example, an aliphatic alkali metal sulfonate, an aliphatic alkaline earth metal sulfonate, an aromatic alkali metal sulfonate, and an aromatic alkaline earth metal sulfonate (none of the above sulfonates contain fluorine elements), and the like.

[0118] The polycarbonate composition according to the present embodiment, the aliphatic alkali metal sulfonate or the aliphatic alkaline earth metal sulfonate can be, for example, an alkyl alkali metal or alkaline earth metal sulfonate, and examples of the alkyl sulfonic acid suitable for the alkyl alkali metal or alkaline earth metal sulfonate can be methanesulfonic acid, ethanesulfonic acid, propanesulfonic acid, butanesulfonic acid, methylbutanesulfonic acid, hexanesulfonic acid, heptanesulfonic acid, or octanesulfonic acid.

[0119] The polycarbonate composition according to the present embodiment, the aromatic alkali metal sulfonate or the aromatic alkaline earth metal sulfonate can be, for example, a sulfated aromatic sulfonate including a monomer and a polymer, a carboxylated, esterified aromatic sulfonate, an etherified aromatic sulfonate including a monomer and a polymer, a sulfonated aromatic sulfonate, an aromatic sulfonic acid including a monomer and a polymer, an aromatic sulfonic acid group sulfonic acid including a monomer and a polymer, a silicone-based aromatic sulfonate, a heterocyclic sulfonic acid, an aromatic sulfone sulfonic acid, an aromatic sulfonic acid and a methylene type polycondensate, and the like.

[0120] The polycarbonate composition according to the present embodiment, in some embodiments, the non-fluorinated organic alkali metal or alkaline earth metal sulfonate is selected from an aromatic alkali metal sulfonate or an aromatic alkaline earth metal sulfonate, and in some embodiments, it is a potassium aromatic sulfonate.

[0121] The polycarbonate composition according to the present embodiment, in some embodiments, the alkali metal sulfonate or the alkaline earth metal sulfonate is a fluorinated organic alkali metal or alkaline earth metal sulfonate, and in some embodiments, the fluorinated organic alkali metal or alkaline earth metal sulfonate is a perfluoroalkyl metal or alkaline earth metal sulfonate, and in some embodiments, the number of carbon atoms of the perfluoroalkyl group is controlled within a range of 1 to 18, and in some embodiments, within a range of 1 to 10, and in some embodiments, within a range of 1 to 8.

[0122] The polycarbonate composition of the embodiment of the present application, in some embodiments, further includes a fluorine-containing anti-dripping agent as the E component in an amount of 0.1 to 1 parts by weight, and in consideration of the effects on the impact resistance retention and the flame retardancy, the fluorine-containing anti-dripping agent is in an amount of 0.2 to 0.5 parts by weight, and specifically, for example, can be 0.2 parts by weight, 0.3 parts by weight, 0.4 parts by weight, or 0.5 parts by weight, and the like, and the fluorine-containing anti-dripping agent can be, for example, polytetrafluoroethylene, a tetrafluoroethylene-based copolymer (e.g., a tetrafluoroethylene / hexafluoropropylene copolymer, and the like), a partially fluorinated polymer as shown in the U.S. Patent No. 4379910, a polycarbonate resin made from a fluorinated diphenol, and the like. Among them, in some embodiments, the anti-dripping agent is polytetrafluoroethylene (PTFE).

[0123] The polycarbonate composition of the embodiment of the present application, in consideration of the effects on the impact resistance retention and the flame retardancy, in some embodiments, the C component is in an amount of 0.1 to 5 parts by weight, and in some embodiments, the C component is in an amount of 0.2 to 4 parts by weight.

[0124] The polycarbonate composition of the embodiment of the present application, in consideration of the effects on the impact resistance retention and the flame retardancy, in some embodiments, the C component is in an amount of 0.1 to 5 parts by weight, and in some embodiments, the C component is in an amount of 0.2 to 4 parts by weight.

[0125] The polycarbonate composition of the embodiment of the present application, in consideration of the effects on the impact resistance retention and the flame retardancy, in some embodiments, the C component is in an amount of 0.1 to 5 parts by weight, and in some embodiments, the C component is in an amount of 0.2 to 4 parts by weight.

[0126] The polycarbonate composition of the embodiment of the present application, in some embodiments, the polycarbonate composition is mainly composed of the A component, the B component, the C component, the D component, and the E component described above, and other components are other auxiliary agents in normal amounts.

[0127] The polycarbonate composition of the present embodiment, in some embodiments, further includes an ultraviolet absorber, which, in some embodiments, is selected from at least one of titanium oxide, zinc oxide, zirconium oxide, a benzotriazole-based ultraviolet absorber, a triazine-based ultraviolet absorber, an oxazine-based ultraviolet absorber, or a malonate ester.

[0128] The polycarbonate composition of the present embodiment, in some embodiments, further includes a release agent, which, in some embodiments, is selected from at least one of a fatty acid ester, a polyolefin-based wax, a silicone compound, a fluorine compound (fluorine oil represented by polyfluoroalkyl ether, etc.), a paraffin wax, or a beeswax.

[0129] The polycarbonate composition of the present embodiment, in some embodiments, further includes a stabilizer, specifically, for example, a phosphorus-based stabilizer or a hindered phenol-based antioxidant.

[0130] The polycarbonate composition of the present embodiment, in some embodiments, further includes a metal deactivator, which, in some embodiments, is dodecanedioic acid bis[2-(2-hydroxybenzoyl)hydrazide].

[0131] The polycarbonate composition of the present embodiment can further include, in small amounts, additives that are originally present, in order to impart various functions to the product and improve characteristics, and these additives can be included in general amounts, as long as they do not affect the purpose of the present invention. As the above-mentioned additives, for example, there can be a sliding agent (e.g., PTFE particles), a colorant (e.g., pigments such as titanium oxide, zinc oxide, etc., dyes), a light diffusing agent (e.g., acrylic crosslinked particles, silicone crosslinked particles, extremely thin glass flake, calcium carbonate particles), a fluorescent dye, an inorganic fluorescent material (e.g., a fluorescent material having an aluminate as a parent crystal), an antistatic agent, a nucleating agent, an antibacterial agent of inorganic and organic types, a photocatalyst-based antifouling agent (e.g., particulate titanium oxide, particulate zinc oxide), a radical generator, an infrared absorber (heat ray absorber), and a photochromic agent, etc.

[0132] The present embodiment also provides a method for producing the above-mentioned polycarbonate composition, which includes the following steps:

[0133] The polycarbonate composition is produced by a method of blending or a method of blending and then pelletizing, using, as raw materials, the aforementioned polycarbonate resin as A-1, the polycarbonate-polyorganosiloxane copolymer as A-2, the polyorganosiloxane graft copolymer rubber particles as B, the linear-structure polyorganosiloxane as C-1, and the branched-structure polyorganosiloxane as C-2, or further adding the aforementioned flame retardant and the like.

[0134] The method for producing the polycarbonate composition of the embodiment of the present application can be used to produce a polycarbonate composition that has impact resistance, impact resistance retention in a humid heat environment, and flame retardancy.

[0135] The method for producing the polycarbonate composition of the embodiment of the present application can be used to produce a polycarbonate composition that has impact resistance, impact resistance retention in a humid heat environment, and flame retardancy.

[0136] The embodiment of the present application also provides a molded product that is processed from the above-described polycarbonate composition. In some embodiments, the polycarbonate composition is used to produce various products by a method in which pellets are used for injection molding to produce a molded product. In the injection molding, a general cold runner type molding method can be used, or a hot runner type method without a sprue can be used. In the injection molding, a general molding method can be used, or a gas-assisted injection molding, injection compression molding, ultra-high speed injection molding, injection-molded compression molding, two-color molding, sandwich molding, in-mold coating molding, insert molding, foaming molding (including the use of supercritical fluid), rapid heating and cooling mold molding, heat-insulating mold molding, and in-mold re-melting molding, and combinations of these molding methods can be used. In some embodiments, various profile extrusion molded products are produced by extrusion molding, and are used in the form of a sheet or film. In the molding of a sheet or film, a method such as blowing and casting can be used for molding, or a heat-shrinkable hose can be produced by performing a specific stretching operation, or a molded product can be produced by spin molding without melting and mixing the resin. In some embodiments, the molded product is a mechanical part, an automobile part, an electrical or electronic part, or an office equipment part.

[0137] The present application is further illustrated by the following specific examples.

[0138] Performance Test Description

[0139] 1) Flame Retardancy Test

[0140] The flame retardancy was determined using the UL94 standard (V test), and the thickness of the test sample was 1.5 mm.

[0141] 2) Charpy Impact Strength Test

[0142] The Charpy notched impact strength was measured in accordance with ISO-179 standard, using a test specimen having a size of 80 mm x 10 mm x 4 mm, at 23°C, -30°C, and -40°C.

[0143] 3) Water immersion test

[0144] The test specimen was immersed in deionized water in accordance with UL746C standard of UL Company, U.S.A., at a temperature of 82 ± 1°C for 168 hours, and then UL94 (V test) and mechanical properties were measured.

[0145] 4) Humidity resistance test

[0146] The test specimen was left in an environmental test chamber maintained at 85°C and 85% RH for 1000 hours, and then mechanical properties were measured.

[0147] Raw material

[0148] A-1-1 Polycarbonate resin: polycarbonate resin powder having a viscosity average molecular weight of 19,700, produced from bisphenol A and phosgene by a conventional method (product of the present company) ;

[0149] A-1-2 Polycarbonate resin: polycarbonate resin powder having a viscosity average molecular weight of 22,400, produced from bisphenol A and phosgene by a conventional method (product of the present company) ;

[0150] A-1-3 Polycarbonate resin: polycarbonate resin powder having a viscosity average molecular weight of 23,900, produced from bisphenol A and phosgene by a conventional method (product of the present company) ;

[0151] A-1-4 Recycled polycarbonate resin: recycled polycarbonate resin particles having a viscosity average molecular weight of 20,900, derived from a polycarbonate film.

[0152] A-2-1 Polycarbonate-polyorganosiloxane copolymer: polycarbonate-polydimethylsiloxane copolymer having a viscosity average molecular weight of 19,700, a polydimethylsiloxane content of 8.4 wt%, and a polydimethylsiloxane degree of polymerization of 37 (product of the present company) ;

[0153] A-2-2 Polycarbonate-polyorganosiloxane copolymer: polycarbonate-polydimethylsiloxane copolymer having a viscosity average molecular weight of 23,900, a polydimethylsiloxane content of 8.4 wt%, and a polydimethylsiloxane degree of polymerization of 37 (product of the present company).

[0154] B-1 Polyorganosiloxane-grafted acrylate copolymer rubber particles: polyorganosiloxane (polydimethylsiloxane) content of 70 wt%, average particle diameter of 250 nm.

[0155] B-2 polyorganosiloxane-grafted acrylate copolymer rubber particles polydimethylsiloxane (polyorganosiloxane) content 30 wt%, average particle size 500 nm;

[0156] B-3 polyorganosiloxane-grafted acrylate copolymer rubber particles polydimethylsiloxane (polyorganosiloxane) content 70 wt%, average particle size 500 nm;

[0157] B-4 MBS (methyl methacrylate, butadiene, styrene terpolymer) (C223A, Mitsubishi Chemical).

[0158] C a composition made by mixing 70 parts by weight of a hydroxyl-terminated polydimethylsiloxane (C-1-1) component and 30 parts by weight of an MQ resin (C-2-1) component having a structure represented by formula (5) (where b, i, j, k, and 1 are 0, and R 29 , R 30 , and R 31 are methyl) (kinematic viscosity at 298 K 260,000 mm 2 / s, SFR 100, manufactured by Momentive Performance Materials, Inc.).

[0159] C-1-2 polydimethylsiloxane (KF-96-5000CS manufactured by Shin-Etsu Chemical Co., Ltd.) having a kinematic viscosity at 298 K of 5,000 mm 2 / s.

[0160] C-2-2 MQ resin (DOWSIL MQ-1600 manufactured by Dow Corning Toray Co., Ltd.) having a structure represented by formula (5) (where b, i, j, k, and 1 are 0, and R 29 , R 30 , and R 31 are methyl).

[0161] D-1 cyclic phenoxyphosphazene having a structure represented by the following formula, wherein the content of the trimer (k = 1) is 68 mol%, the content of the tetramer (k = 2) is 18 mol%, and the content of the multimer of k = 3 or more is 14 mol%.

[0162] D-2 cyclic phenoxyphosphazene having a structure represented by the following formula, wherein the content of the trimer (k = 1) is 98.5 mol% or more.

[0163] D-3 potassium diphenylsulfone-3-sulfonate

[0164] E-1 Fluorine-containing anti-dripping agent-coated PTFE (polytetrafluoroethylene coated with styrene-acrylonitrile copolymer) (manufactured by Shine polymer, SN3307PF);

[0165] E-2 Fluorine-containing anti-dripping agent-coated PTFE (polytetrafluoroethylene coated with methyl methacrylate-butyl acrylate copolymer) (manufactured by Mitsubishi Chemical Corporation, Metablen A3750).

[0166] Stabilizer-1 Octadecyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate (manufactured by BASF Corporation, Irgnox 1076);

[0167] Stabilizer-2 Tris(2,4-di-tert-butylphenyl) phosphite (manufactured by BASF Corporation, Irgafos 168). Release agent Pentaerythritol tetrastearate (manufactured by Riken Vitamin Co., Ltd., EW400).

[0168] Ultraviolet absorber 2,2'-methylenebis[6-(2H-benzotriazol-2-yl)-4-(1,1,3,3-tetramethylbutyl) phenol (manufactured by ADEKA Corporation, ADEKA STAB LA-31).

[0169] Examples 1-27 and Comparative Examples 1-7

[0170] Examples 1-20 were prepared by mixing the materials in the proportions shown in Table 1 below, and Examples 21-29 and Comparative Examples 1-5 were prepared by mixing the materials in the proportions shown in Table 2 below, using a tumbler mixer. The resin composition was then fed from the cylinder of an extruder to the extruder to be pelletized. The extruder used was a vented twin-screw extruder (TEX-30α manufactured by Japan Steel Works, Ltd.) having a screw diameter of φ 30 mm. The resin composition was extruded under the conditions of a cylinder temperature of 280°C, a die temperature of 280°C, and a suction pressure of 3000 Pa at the vent, and the extruded strand was cooled in a water bath, and then cut into pellets using a pelletizer to complete the pelletization process.

[0171] In Examples 1-27 and Comparative Examples 1-7, the pellets obtained were dried for 5 hours at 110°C using a hot-air circulating dryer, and then a water immersion test, a heat and humidity resistance test, a Charpy impact strength before treatment at 23°C, -30°C, and -40°C, a flame retardancy before treatment, a Charpy impact strength at 23°C and -30°C after the water immersion test, a flame retardancy after the water immersion test, and a Charpy impact strength after the heat and humidity resistance test were measured using a test specimen injection-molded using an injection molding machine [Toshiba Machine Co., Ltd. IS170GN-5Y]. The results are shown in Table 1-2 below. The injection molding conditions were a cylinder temperature of 280°C and a mold temperature of 70°C.

[0172] According to the test results in Table 1-2 below, as the comparison of Examples 1-16, 19-27 and Comparative Examples 1-2, it can be seen that when the phosphazene compound is used as the flame retardant, the polycarbonate composition with C component has an impact strength retention rate of 55% or more after the hydrothermal test, which is much higher than the impact strength retention rate of less than 20% of the polycarbonate composition without C component after the hydrothermal test. Further comparison of Examples 1-16, 19-20 shows that by adjusting the amount of phosphazene compound to 1-5 wt%, and combining with A-1 component, A-2 component, B component, C-1 and C-2 component, an excellent impact strength retention rate of 70% or more after the hydrothermal test and excellent flame retardant performance V-0 level after water immersion can be obtained. As the comparison of Example 1 and Comparative Example 3, it can be seen that the polycarbonate composition without B component has poor low-temperature impact resistance, and the impact strength retention rate is greatly reduced. As the comparison of Example 4 and Comparative Example 4, it can be seen that when the methyl methacrylate, butadiene and styrene terpolymer is used to replace the polyorganosiloxane grafted copolymer rubber particles of B component, the impact performance, impact retention rate and flame retardancy of the polycarbonate composition are all reduced to some extent. As the comparison of Examples 17-18 and Comparative Examples 5-7, it can be seen that when the alkali metal sulfonate is used as the flame retardant at 0.05-0.1 wt%, compared with the composition without C component, or only containing C-1 component or C-2 component, the composition has more excellent impact strength retention rate after the hydrothermal test and flame retardant performance after water immersion.

Claims

A polycarbonate composition, characterized in that, include: 100 parts by weight of component A, which consists of component A-1 and component A-2, wherein component A-1 is polycarbonate resin and component A-2 is polycarbonate-polyorganosiloxane copolymer, and the polyorganosiloxane in component A-2 accounts for 0 to 10 wt% based on the total weight of component A; 0.5 to 12 parts by weight of polyorganosiloxane graft copolymer rubber particles as component B; The C component, consisting of C-1 and C-2, comprises 0.05 to 10 parts by weight, wherein the C-1 component is a linear polyorganosiloxane and the C-2 component is a branched polyorganosiloxane, and the C-1 component accounts for 50 to 90 wt% of the total weight of the C component. The polycarbonate composition according to claim 1, characterized in that, The polycarbonate portions of component A-1 and component A-2 are each independently composed of structural units of the following formula (1): In equation (1) above, e are R 1 and f R 2 Each group is independently selected from hydrogen atoms, halogen atoms, alkyl groups having 1 to 18 carbon atoms, alkoxy groups having 1 to 18 carbon atoms, cycloalkyl groups having 6 to 20 carbon atoms, cycloalkoxy groups having 6 to 20 carbon atoms, alkenyl groups having 2 to 10 carbon atoms, aryl groups having 6 to 14 carbon atoms, aryloxy groups having 6 to 14 carbon atoms, arylalkyl groups having 7 to 20 carbon atoms, arylalkoxy groups having 7 to 20 carbon atoms, nitro groups, aldehyde groups, cyano groups, or carboxyl groups, where e and f are independently integers from 1 to 4, and W is selected from at least one group from a single bond or a group represented by the following general formula (2): In equation (2) above, g are R 11 and R 12 R 13 R 14 R 15 R 16 h R 17 and R 18 R is independently selected from hydrogen atoms, alkyl groups having 1 to 18 carbon atoms, aryl groups having 6 to 14 carbon atoms, or aralkyl groups having 7 to 20 carbon atoms. 19 and R 20 Each of the following groups is independently composed of a hydrogen atom, a halogen atom, an alkyl group with 1 to 18 carbon atoms, an alkoxy group with 1 to 10 carbon atoms, a cycloalkyl group with 6 to 20 carbon atoms, a cycloalkoxy group with 6 to 20 carbon atoms, an alkenyl group with 2 to 10 carbon atoms, an aryl group with 6 to 14 carbon atoms, an aryloxy group with 6 to 10 carbon atoms, an aralkyl group with 7 to 20 carbon atoms, an arylalkoxy group with 7 to 20 carbon atoms, a nitro group, an aldehyde group, a cyano group, or a carboxyl group, where g is an integer from 1 to 10 and h is an integer from 4 to 7. The polyorganosiloxane portion of component A-2 is composed of structural units of the following formula (3): In equation (3) above, R 3 R 4 R 5 R 6 R 7 and R 8 R is independently selected from hydrogen atoms, alkyl groups having 1 to 12 carbon atoms, or substituted or unsubstituted aryl groups having 6 to 12 carbon atoms. 9 and R 10 Each of the following is independently selected from hydrogen atoms, halogen atoms, alkyl groups with 1 to 10 carbon atoms, or alkoxy groups with 1 to 10 carbon atoms, where p is a positive integer, q is 0 or a positive integer, the average chain length p+q is a natural number of 30 to 50, and X is a divalent aliphatic group with 2 to 8 carbon atoms. The polycarbonate composition according to claim 1, characterized in that, The C-1 component is a polyorganosiloxane with the structure of formula (4): In equation (4) above, R 22 R 23 R 26 R 27 n R 24 and n R 25 R is independently selected from hydrogen atom, alkyl group having 1 to 12 carbon atoms, alkoxy group having 1 to 12 carbon atoms, or substituted or unsubstituted aryl group having 6 to 12 carbon atoms. 21 and R 28 Each of the following is independently selected from hydrogen atom, hydroxyl group, alkyl group with 1 to 12 carbon atoms, alkoxy group with 1 to 12 carbon atoms, substituted or unsubstituted aryl group with 6 to 12 carbon atoms, hydroxyalkyloxyalkylene group with 1 to 12 carbon atoms, or hydroxyalkyl group with 1 to 12 carbon atoms, where n is an integer from 1 to 1000. The polycarbonate composition according to claim 3 is characterized in that, The R 22 R 23 R 26 R 27 n R 24 and n R 25 Each R is independently selected from alkyl groups having 1 to 12 hydrogen atoms or carbon atoms. 21 and R 28 Each is independently selected from hydrogen atoms, hydroxyl groups, alkyl groups having 1 to 12 carbon atoms, or hydroxyalkyloxyalkylene groups having 1 to 12 carbon atoms. The polycarbonate composition according to claim 4, characterized in that, The R 21 R 22 R 23 R 26 R 27 n R 24 and n R 25 The R is methyl. 28 It can be a hydrogen atom, a methyl group, or a hydroxyl group. The polycarbonate composition according to claim 3 is characterized in that, The kinematic viscosity of the C-1 component at 298 K is 10–30,000 mm⁻¹. 2 / s. The polycarbonate composition according to claim 1, characterized in that, The C-2 component is a polyorganosiloxane with the structure of formula (5): M 1 a M 2 b D 1 i D 2 j T 1 k T 2 l Q m (5) In equation (5) above, M 1 =R 29 R 30 R 31 SiO 1 / 2 M 2 =R 32 R 33 R 34 SiO 1 / 2 D 1 =R 35 R 36 SiO 2 / 2 D 2 =R 37 R 38 SiO 2 / 2 T 1 =R 39 SiO 3 / 2 T 2 =R 40 SiO 3 / 2 Q = SiO 4 / 2 , where R 29 R 30 R 31 R 33 R 34 R 35 R 36 R 38 and R 39 Each is independently selected from alkyl groups having 1 to 12 carbon atoms, alkoxy groups having 1 to 12 carbon atoms, or substituted or unsubstituted aryl groups having 6 to 12 carbon atoms, R 32 R 37 and R 40 Each is independently selected from hydrogen atoms, hydroxyl groups, alkyl groups with 1 to 12 carbon atoms, or alkoxy groups with 1 to 12 carbon atoms, where a, b, i, j, k, l, and m are natural numbers and satisfy 1 ≤ a + b and 1 ≤ m. The polycarbonate composition according to claim 7 is characterized in that, The values ​​of i, j, k, and l are 0. The polycarbonate composition according to claim 1, characterized in that, The kinematic viscosity of the mixed C component at 298 K is 200,000–900,000 mm⁻¹. 2 / s. The polycarbonate composition according to claim 1, characterized in that, The polycarbonate has a viscosity-average molecular weight of 15,000 to 30,000. The polycarbonate composition according to claim 1, characterized in that, The average molecular weight of the polycarbonate-polyorganosiloxane copolymer is 15,000 to 27,000. The polycarbonate composition according to claim 1, characterized in that, The polyorganosiloxane in component B has a mass percentage of Y%, and the average particle size of component B is Z nm. Y and Z satisfy the following conditions: Y≥-Z / 10+70, where Y≥25, 1000≥Z≥200. The polycarbonate composition according to claim 1, characterized in that, Based on the total weight of component A, the polyorganosiloxane in component A-2 accounts for 0 to 5.5 wt%. The polycarbonate composition according to claim 1, characterized in that, Based on the total weight of component C, component C-1 accounts for 60-80 wt%. The polycarbonate composition according to claim 1, characterized in that, The polycarbonate composition further includes 0.01 to 12 parts by weight of a flame retardant as component D. The polycarbonate composition according to claim 15 is characterized in that, The flame retardant is a halogen-free flame retardant. The polycarbonate composition according to claim 16 is characterized in that, The halogen-free flame retardant is at least one of phosphazene compounds, alkali metal sulfonates, or alkaline earth metal sulfonates. The polycarbonate composition according to claim 17 is characterized in that, The content of the phosphazene trimeric form in the phosphazene flame retardant is above 98.5 mol%. The polycarbonate composition according to claim 15 is characterized in that, The polycarbonate composition further includes 0.1 to 1 part by weight of a fluorinated anti-drip agent as component E. The polycarbonate composition according to claim 19 is characterized in that, The flame retardancy of the polycarbonate composition after water immersion test was rated as V-0 according to the UL-94V test standard. The water immersion test was conducted according to the UL746C standard established by UL Corporation of the United States, with a temperature of 82±1℃ and an immersion time of 168 hours. The polycarbonate composition according to claim 1, characterized in that, The polycarbonate composition retains more than 50% of the notched impact strength of a simply supported beam at 23°C after a damp heat test. The damp heat test involves placing the notched impact specimen of a simply supported beam in an environmental test chamber at 85°C and 85% RH for 1000 hours. The polycarbonate composition according to claim 21 is characterized in that, The notched impact strength retention rate of the simply supported beam is above 70%. The polycarbonate composition according to claim 1, characterized in that, The polycarbonate resin of component A-1 comprises recycled polycarbonate resin obtained by recycling self-molded polycarbonate articles as raw materials. A molded article, characterized in that, The molded article is processed from the polycarbonate composition according to any one of claims 1-23.

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