93 results about "Phosphinate" patented technology

The invention discloses a flame-retardant ABS (Acrylonitrile Butadiene Styrene) composition as well as a preparation method and application thereof, and relates to the technical field of high polymer materials. The flame-retardant ABS composition provided by the invention comprises the following components in parts by mass: 50-80 parts of ABS resin; 8 to 12 parts of styrene-acrylonitrile copolymer; 3 to 5 parts of styrene-acrylonitrile-maleic anhydride terpolymer; 2 to 6 parts of a fluorine-containing maleimide copolymer; 5 to 15 parts of graphite nanosheet modified high rubber powder; 12 to 18 parts of brominated flame retardant; 3-7 parts of a phosphorus-based flame retardant; 0.1-1 part of a processing aid; the phosphorus-based flame retardant is prepared from the following components in parts by mass: 80 to 95 parts of diethyl phosphinate; 0.3 to 3 parts of ethyl butyl phosphinate; 0.1 to 2 parts of ethyl phosphonate; and 5 to 20 parts of melamine polyphosphate. The flame-retardant ABS composition prepared by the invention is good in flame retardant property, good in welding strength and low in cost.

The invention discloses a polyamide composite material as well as a preparation method and application thereof, and relates to the technical field of high polymer materials. The invention provides a polyamide composite material. The polyamide composite material comprises the following components in parts by weight: 30-60 parts of polyamide resin, 12-32 parts of a brominated flame retardant, 4-12 parts of organic phosphinate, 0.1-1 part of a zirconium compound, 0-50 parts of glass fibers, 0-3 parts of an antioxidant and 0-3 parts of a lubricant, and the particle size D50 of the zirconium compound is 0.08-2 [mu] m. According to the antimony-free halogen-containing flame-retardant polyamide composite material provided by the invention, a traditional bromine-antimony flame-retardant system is synergistically replaced by the organic phosphinate and the zirconium compound, and the prepared polyamide composite material has excellent mechanical properties, flame retardance and thermal decomposition stability.

The invention relates to the technical field of silicone rubber, in particular to high-temperature-resistant flame-retardant silicone rubber, a preparation method thereof and a cable, the high-temperature-resistant flame-retardant silicone rubber comprises a gradient layer material composed of a surface layer material, a transition layer material and a core layer material, and the surface layer material comprises methyl vinyl silicone rubber, superfine furnace black, calcium stannate, polyacrylonitrile aerogel and a flame-retardant premix; the transition layer material comprises methyl vinyl silicone rubber, superfine furnace carbon black, spandex fibers, polyarylester, calcium stannate and a flame-retardant premix; the core layer material is prepared from methyl vinyl silicone rubber, superfine furnace black, aramid fiber, polyarylester, phthalonitrile resin and 2-mercaptobenzothiazole zinc salt; wherein the flame-retardant premix is prepared from hydroquinone bis (diphenyl) phosphate, phenyl ethyl aluminum phosphinate and zinc hypophosphite according to the weight ratio of (6 to 10): (2 to 4): (1 to 3); the problems that an existing material is prone to aging in an extreme environment, the flame retardant effect is poor, and the mechanical property is degraded are effectively solved.

The invention relates to the field of additives, in particular to a polymer additive and application thereof, which are used for solving the problem that the existing dialkyl phosphinate is insufficient in flame retardant efficiency and contradictory in mechanical property in practical application. Diethyl phosphinate, dialkyl phosphinate, alkyl phosphinate, alkyl phosphinate and phosphite are reasonably compounded to prepare the polymer additive, so that the polymer additive has excellent and efficient flame retardance and also can be endowed with excellent compatibility, the polymer additive is used in a polymer material, and the flame retardance of the polymer material is improved. According to the present invention, with the flame retardant, the polymer material containing the flame retardant can have advantages of excellent flame retardant property, good toughness, high impact strength and excellent mechanical property under the condition of the small addition amount.

The application provides a polyamide composition and application thereof, the polyamide composition comprises the following components in parts by mass: polyamide 40-99.5 parts, reinforcing material 10-45 parts, and flame retardant 5-35 parts; the flame retardant comprises the following components in parts by mass: diethyl phosphinate 30-90 parts, ethyl phosphinate 0.01-3 parts, dihydrocarbyl phosphite 5-67 parts, and hydrocarbyl phosphite 0.01-5.5 parts. The application can play the effect of efficient flame retardation by introducing specific flame retardants, so that the polyamide composition has excellent flame retardation and excellent impact resistance.

The invention discloses a polyamide / polyphenyl ether alloy material and a manufacturing method thereof, and is used for solving the problems that an existing polyamide / polyphenyl ether alloy material cannot meet UL94 V-0-level flame retardance, high insulativity of CTI greater than or equal to 700V and low precipitation (lt) after long-term damp-heat aging at the same time under the ultra-thin thickness of 0.6 mm; 0.1%) and a high performance retention rate (gt; 90%). The polyamide / polyphenyl ether alloy material comprises the following components in parts by mass: 55-75 parts of polyamide 66 resin; 25 to 45 parts of polyphenyl ether resin pre-irradiated by gamma rays; 10 to 20 parts of a silicone-coated diethyl aluminum phosphinate flame retardant with a core-shell structure; 5-10 parts of a maleic anhydride grafted high impact polystyrene compatilizer pre-irradiated by gamma rays; 20-30 parts of hydrolysis-resistant glass fiber of which the surface is treated by a silane coupling agent; 3-8 parts of tetrapod-like zinc oxide whiskers; 2 to 5 parts of a CTI synergist; and 1-2 parts of an anti-precipitation agent.

The application belongs to the field of polymer composites, and particularly relates to a synergistic flame-retardant composite material for fireproof doors and a preparation method thereof; aiming at the problem that excessive addition of a flame retardant can cause the mechanical property of a composite material to decrease; the application improves the dispersibility of nano-zinc oxide in a PVC matrix through citric acid / phytic acid composite modification, and forms a high-efficiency synergistic flame-retardant system by compounding with aluminum diethyl phosphinate and melamine cyanurate; by constructing a gradient functional structure of a high-flame-retardant region and a low-flame-retardant region, and cooperating with a co-extrusion process, the damage of the flame retardant to the mechanical property of the matrix is reduced while the overall excellent flame-retardant property of the material is ensured.

To provide a technique capable of securing flame retardancy by reducing the use amount of a halogen-based flame retardant and an antimony-based flame retardant, or without using the halogen-based flame retardant and the antimony-based flame retardant.SOLUTION: A polyurethane foam obtained from a composition comprising a polyol, a polyisocyanate, and a flame retardant, wherein the flame retardant comprises a phosphinate ester and a phosphate ester.SELECTED DRAWING: None

A copolyester composition comprising a metal phosphinate flame retardant, an acrylic silicone impact modifier, and a silicate mineral, which provides high tensile and / or flexural modulus while maintaining thermal and impact properties and having improved flame retardant properties, a method for manufacturing the copolyester composition, and an article manufactured from the copolyester composition are provided.

The application provides a preparation method and application of a core-shell structured magnesium-aluminum double-metal hydroxide coated aluminum diethyl phosphinate composite halogen-free flame retardant, and solves the technical problem of poor stability and flame retardant effect of existing phosphorus-containing flame retardants in water-based paint emulsion; the preparation method of the composite halogen-free flame retardant comprises the following steps: S1. magnesium salt and aluminum salt are weighed and dissolved in an appropriate amount of water, an appropriate amount of non-ionic surfactant is added, and then aluminum diethyl phosphinate powder is added to form a mixed solution; S2. a precipitant is added dropwise to the mixed solution in step S1 to perform a co-precipitation reaction, and after the reaction endpoint is adjusted to an appropriate pH of the mixed solution, aging is performed to obtain a co-precipitation precursor slurry; S3. the co-precipitation precursor slurry after aging in step S2 is transferred to a hydrothermal reaction kettle, and after hydrothermal treatment, the slurry is subjected to solid-liquid separation, washing and drying to finally obtain the core-shell structured magnesium-aluminum double-metal hydroxide coated aluminum diethyl phosphinate composite halogen-free flame retardant; and the composite halogen-free flame retardant can be widely applied to the technical field of halogen-free flame retardants.

This invention provides a disubstituted phosphonate compound, its preparation method, and its applications, belonging to the technical field of organophosphorus flame retardants. The disubstituted phosphonate compound provided by this invention exhibits excellent flame retardant properties. It is synthesized in a one-step process using phosphonates and halogenated compounds as raw materials. Compared to existing traditional synthesis methods, this method offers higher yields, fewer and easier-to-separate byproducts, a simpler process, shorter processing time, greater safety and environmental friendliness, lower cost, and easier implementation. The flame-retardant epoxy resin cured products prepared using the disubstituted phosphonate compound as a raw material exhibit excellent flame retardant properties and are transparent and clear. The flame-retardant epoxy resin cured product specimens prepared in Examples 1-3 of this invention show significantly better flame retardant effects than those in Comparative Examples 1-2. Furthermore, the flame-retardant epoxy resin cured products prepared in Examples 1-3 are all clear and transparent with superior physical properties.

The invention discloses a flame-retardant lead-boron modified polyethylene composite shielding material and a preparation method thereof. The flame-retardant lead-boron modified polyethylene composite shielding material is prepared from the following components in percentage by weight: 14 to 16 percent of ultrahigh molecular weight polyethylene powder, 0.5 to 3 percent of boron carbide powder, 70 to 80 percent of lead powder of which the purity is greater than or equal to 99.5 percent, 5 to 10 percent of modified aluminum diethylphosphinate, 0.1 to 0.2 percent of antioxidant and 0.1 to 0.2 percent of lubricant, wherein the lead powder comprises 200-mesh granular lead powder and 300-500-mesh spherical lead powder, the mass ratio of the 200-mesh granular lead powder to the 300-500-mesh spherical lead powder is 1: 1, and the modified aluminum diethyl phosphinate is silane coupling agent modified aluminum diethyl phosphinate. The shielding performance of the prepared flame-retardant lead-boron modified polyethylene composite shielding material is equivalent to that of a conventional lead-boron polyethylene material, and the flame-retardant lead-boron modified polyethylene composite shielding material has excellent flame retardance and physical and chemical properties, the oxygen index of the flame-retardant lead-boron modified polyethylene composite shielding material is greater than or equal to 32, and the vertical combustion method reaches V0 level.

A process for manufacturing a masterbatch comprises the following steps: (a) bringing at least one initial polymer comprising at least one carbon-carbon unsaturation into contact with at least one 1,3-dipolar grafting agent bearing at least one nitrile oxide dipole in the presence of at least one organophosphorus additive selected from the group consisting of phosphoric acid triesters, phosphonates, phosphinates, phosphine oxides and the mixtures of these compounds, and (b) recovering the masterbatch obtained in the preceding step. The masterbatch and compositions containing it and also tires comprising such compositions are also disclosed.

To provide a polyamide resin composition capable of achieving both high flame retardancy and impact resistance at low temperature.SOLUTION: The polyamide resin composition contains a polyamide resin (A), a modified ethylene / α - olefin copolymer (B) modified with an unsaturated carboxylic acid or a derivative thereof, a phosphinate (C), a nitrogen-containing (poly) phosphate (D), and an inorganic filler (E).SELECTED DRAWING: None

The application provides a flame retardant composition and application thereof and a polyamide composite material, the flame retardant composition comprises 5-15 parts of a dialkyl phosphinic acid metal salt and 0.5-4 parts of an imidazolium dialkyl phosphinate salt in terms of weight parts. The flame retardant composition, by compounding the imidazolium dialkyl phosphinate salt with the dialkyl phosphinic acid metal salt, can effectively improve the flame retardant efficiency, mechanical properties and precipitation resistance of the material, and meanwhile can reduce the content of the dialkyl phosphinic acid metal salt in the resin system.

A copolyester composition, a method of making the copolyester composition, and an article made from the copolyester composition, the copolyester composition comprising a metal phosphinate flame retardant, a polymeric impact modifier, and / or a reinforcing filler material, the copolyester composition having improved flame retardant properties while providing high impact strength, elongation at break, and tensile and / or flexural modulus.

The polyamide resin composition of the present invention is characterized by comprising 100 parts by weight of an aliphatic polyamide resin; 65 to 135 parts by weight of glass fiber; 35 to 65 parts by weight of glass powder; 5 to 28 parts by weight of kaolin; and 25 to 75 parts by weight of a flame retardant comprising one or more of a metal phosphinate compound and a phosphate nitrogen compound. The polyamide resin composition has excellent flame resistance, flame retardancy, impact resistance, rigidity, thermal stability, and a balance of these physical properties.

The invention belongs to the technical field of fine chemical production, and provides aluminum dibutenyl phosphinate as well as a preparation method and application thereof. The dibutenyl aluminum phosphinate disclosed by the invention has the following structural formula. The aluminum dibutenyl phosphinate has the advantages of high carbon formation, high flame retardant efficiency and small addition amount. The invention also provides a preparation method of aluminum dibutenyl phosphinate. According to the preparation method, a first-stage butenylation reaction, a second-stage butenylation reaction and a third-stage butenylation reaction are sequentially carried out in a butadiene atmosphere. Due to the fact that the speed of the addition reaction is low when the pressure of gasified butadiene is 0.2-0.3 MPa, a mode of gradient temperature rising is adopted for firstly preparing a butene intermediate, then the temperature is increased, and then the other stage is carried out, safe production is guaranteed, impurity production is avoided, and high-purity aluminum dibutenyl phosphinate can be obtained after solid-liquid separation. Meanwhile, the preparation method is simple and suitable for industrial production. .

The application discloses a polyamide composition and a preparation method and application thereof. The polyamide composition comprises the following components in parts by weight: 32-60 parts of a polyamide resin, 1-4 parts of a flame-retardant synergist, 10-50 parts of glass fiber and 13-30 parts of a composite flame retardant, wherein the composite flame retardant comprises aluminum diethyl phosphinate and amino silicon oil. The polyamide composition prepared by adding the composite flame retardant comprising aluminum diethyl phosphinate and amino silicon oil into the polyamide resin system can effectively inhibit the outward migration of corrosive phosphorus elements, and the prepared polyamide composition has good flame-retardant performance.

The invention relates to a blue boiling-resistant flame-retardant nylon composite material and a preparation method thereof.The nylon composite material is prepared from, by weight, 61-72 parts of nylon resin, 20-25 parts of flame retardant, 5-10 parts of filling mineral, 0.3 part of laser etching powder, 0.3-0.8 part of blue toner, 1-2 parts of dispersing agent and 1 part of processing aid; the flame retardant is a phosphinate halogen-free flame retardant; the filling mineral is kaolin with a lamellar structure; the dispersing agent is a mixture of zinc stearate and N, N-ethylene bis stearamide; the preparation method comprises the following steps: uniformly mixing the components according to the weight ratio, and adding the mixture into a double-screw extruder for extrusion molding to obtain the blue boiling-resistant flame-retardant nylon composite material. The preparation method is simple in process; the prepared nylon composite material has the color difference E of less than 1 before and after water boiling, the flame retardant grade of 1.6 mm V0 and excellent laser marking performance.

A flame-retardant metal-resin composite material according to the present disclosure is a metal-resin composite material in which metal layers are laminated on both surfaces of a core material layer containing a resin. The core material layer contains a metal hydroxide, a resin having a specific polar group, and a flame retardant containing at least one compound selected from the group consisting of an inorganic polyphosphate compound, an inorganic phosphite compound, an inorganic phosphinate compound, an inorganic metaphosphate compound, a melamine compound, and a triazine compound.

The invention discloses an anti-fatigue high-speed rail dynamic cable, and belongs to the technical field of high-speed rail cables. Comprising a conductor, a buffer layer, an insulating layer, a shielding layer and a sheath layer. Wherein the sheath layer is a low-smoke halogen-free cross-linked polyolefin sheath material and comprises the following raw materials in parts by weight: 40-50 parts of an ethylene-vinyl acetate copolymer, 30-40 parts of linear low density polyethylene, 9-15 parts of aluminum diethylphosphinate, 5-10 parts of an anti-fatigue aid, 4-6 parts of a cross-linking sensitizer, 1-2 parts of a processing aid and 0.8-1.2 parts of a composite antioxidant. Wherein the anti-fatigue additive not only can improve the anti-fatigue capability of the cable, but also can generate a synergistic flame-retardant effect with the aluminum diethylphosphinate, so that the overall flame-retardant capability of the cable is improved; the synthesis of the anti-fatigue additive only needs two-step reaction, the raw materials are easy to obtain, the process is controllable, and the method is suitable for industrial production; therefore, the high-speed rail cable has application value in the technical field of high-speed rail cables.

The invention provides dialkyl phosphorus-containing compounds, namely reactive monohydroxy-functional dialkyl phosphinates, that act as very efficient reactive flame retardants in flexible polyurethane foams. The invention further provides fire-retardant polyurethane compositions comprising the reaction product of the monohydroxy-functional dialkyl phosphinates with polyols and isocyanate foam-forming components.

The invention discloses an alkyl-substituted BCP phosphinate compound and a synthesis method and application thereof.According to the method, [1.1. 1] propeller alkane, Katritzky pyridinium salt and a trivalent organic phosphine compound serve as raw materials, bis [2-(2, 4-difluorophenyl)-5-trifluoromethylpyridine] [2-2 '-dipyridyl] iridium bis (hexafluorophosphonic acid) salt serves as a catalyst, and the alkyl-substituted BCP phosphinate compound is synthesized through a one-pot method. And a series of alkyl substituted BCP phosphinate compounds are simply, conveniently and efficiently synthesized by photocatalysis of free radical bifunctionalization reaction of [1.1. 1] propeller alkane. The synthesis method disclosed by the invention has the characteristics of simple and easily available raw materials, mild and efficient reaction and the like, and the synthesized alkyl substituted BCP phosphinate compound has bactericidal activity on rice plant pathogen xanthomonas oryzae pv. Oryzae Xoo and is expected to be used for creating green pesticides.

Provided is an alkyl phosphinate composition, comprising: 99.5-99.9999 wt% of an alkyl phosphinate; and 0.0001-0.5 wt% of a long-chain phosphate. The particle size D95 of the alkyl phosphinate composition is less than 20 microns; the number of carbon atoms in the long-chain phosphate is 16-24. The composition of alkyl phosphinate powder can avoid agglomeration of ultra-fine powder flame retardant during use and improve the dispersion effect of ultra-fine alkyl phosphinate powder in epoxy resins and polyurethane, thereby avoiding granular white spots when used in materials such as printed circuit boards and films; moreover, the composition can meet processing and use requirements for alkyl phosphinate flame retardants, and does not reduce the flame retardant efficiency of alkyl phosphinate flame retardants. Also provided are a preparation method for and a use of the alkyl phosphinate composition.

Provided are a polyamide resin composition containing 100 parts by mass of a specific polyamide (A), 45 to 120 parts by mass of an inorganic fibrous reinforcing material (B), 25 to 40 parts by mass of at least one phosphinate salt (C) represented by a specific formula, and 2 to 15 parts by mass of a phosphite salt (D), the phosphinate salt (C) and the phosphite salt (D) being contained at a specific ratio, and a molded object of the polyamide resin composition.

Flame-retardant polyamide moulding composition, in particular for railway applications, comprising, preferably consisting of: A 34 to 88% by weight of a semi-crystalline aliphatic polyamide having a C / N ratio of at least 8; b 6 to 21% by weight of a flame retardant consisting of: B1 50 to 100% by weight of at least one metal phosphinate; b2 0 to 50 wt% of at least one flame retardant synergist and / or at least one flame retardant containing nitrogen and phosphorus; wherein the sum of components B1 and B2 constitutes 100% by weight of component B; c 1 to 10 wt% of graphite; d 0 to 25 wt% of a polyamide elastomer; e 0 to 10 wt% of a plasticizer; f 0 to 10% by weight of a polyolefin; g 0 to 5% by weight of an additive different from A to F; wherein the sum of the weight proportions of components D to F is 5 to 30 wt% with respect to the sum of the weight percentages of components A to G, and wherein the sum of the weight proportions of components A to G is 100 wt%.

The present invention provides a highly flame-retardant sealing sheet for solar cell modules and a solar cell module. [Solution] A sealing sheet for solar cell modules, wherein the sealing sheet uses a polyolefin resin as the base resin and further contains a phosphinate metal salt.

The invention provides organic aluminum phosphonate and a preparation method and application thereof.The organic aluminum phosphonate has the structure shown in the formula I. The organic aluminum phosphonate is amino trialkyl aluminum phosphonate, molecules of the organic aluminum phosphonate contain a specific content of crystal water and a specific crystal structure, and the organic aluminum phosphonate has excellent flame retardance and stability and can cooperate with dialkyl phosphinate to achieve the flame retardant effect; according to the present invention, the flame retardant is added, such that the polymer composition containing the flame retardant has advantages of excellent flame retardant property, excellent high temperature resistance, excellent high humidity resistance, no auxiliary agent precipitation problem in severe environments such as high temperature, high humidity and the like, excellent color value and excellent light transmittance, good processability, and high injection molding part qualification rate.