PC/ABS alloy material based on waste regeneration and preparation process thereof

A technology of alloy material and preparation process, which is applied in the field of waste alloy plastic preparation, can solve problems such as environmental damage, economic loss, waste of production resources, etc., and achieve the effects of increasing material life, improving processing performance, and slowing down degradation speed

Pending Publication Date: 2021-06-25

苏州德丽雅塑胶科技有限公司

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AI-Extracted Technical Summary

Problems solved by technology

[0003] In the process of mold injection molding, due to the design and processing characteristics of the mold itself, especially when it involves longer or larger injection molded parts, the flow channel area of the mold will also increase accordingly. The quality and volume of the ABS or ...

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Method used

In the present embodiment, concrete: lubricating grease is molybdenum disulfide extreme pressure lithium grease; Two sections of high mixing machine processing realize that the internal and external stress coefficient of material remains even and firm, and utilize antioxidant and lubricant to reconcile material structure, Assist in improving the mechanical properties of materials and improving structural stress conditions.

In the present embodiment, specifically: compatibilizer is maleic anhydride MAH graft POE, PE graft, SVN, methyl acrylate-glycidyl methacrylate copolymer, two-component compatibilization Any one or more mixing; compatibilizer is used to improve the disadvantage of poor compatibility when ABS and PC are blended, its function is to reduce interfacial tension, and the third component added increases the thickness of the interface layer, preventing The dispersed phase coagulates and stabilizes the formed phase structure to increase the compatibility of the two polymers and increase the cohesive force between them to form a stable blend structure.

Principle of work or structural principle: the injection molding flow channel nozzle PC and ABS material recycling as waste material, be prepared into PC/ABS alloy engineering plastics, not only reached resource recycling, avoided polluting environment, and compared ABS improved Compared with PC, it redu...

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Abstract

The invention discloses a PC/ABS alloy material based on waste regeneration and a preparation process thereof. The alloy material is composed of the following raw materials in parts by weight: 60-80 parts of ABS water gap waste, 20-40 parts of PC water gap waste, 3-5 parts of a toughening agent, 5-8 parts of a compatilizer, 0.2-0.4 part of an antioxidant, 2-4 parts of a synergistic flame retardant, 1-3 parts of a flame retardant, 5-7 parts of black color master batch, 0.1-0.3 part of lubricating grease, and 0.5-0.7 part of an anti-dripping agent. The PC/ABS alloy material is prepared by recycling the injection molding runner water gap PC and ABS materials serving as waste materials, so that resource recycling is achieved, and environmental pollution is avoided; the internal and external stress coefficients of the material are kept uniform and stable through two-stage high-speed mixing machine processing, the material structure is blended through an antioxidant and a lubricant, the material is nitrided in the extrusion period, and nitrogen atoms permeate into chemical heat treatment of the surface layer of a workpiece; therefore, the finally prepared PC/ABS has excellent mechanical properties of wear resistance, fatigue resistance, corrosion resistance and high temperature resistance.

Technology Topic

CorrosionFire retardant +12

Image

Examples

Experimental program(3)

Example Embodiment

[0030] Example one

[0031] See Figure 1-2 The present invention provides a technical solution: a PC / ABS alloy material based on waste regeneration, the alloy material consists of the following raw materials, and the raw material is compared to: 60 parts of the ABS water, 20 copies of PC water, 3 parts. Toughening agent, 5 compatibilizer, 0.2 parts of antioxidants, 2 partial flame retardants, 1 flame retardant, 5 parts of black mother, 0.1 parts lubricating oil, 0.5 parts of anti-dripper, 10 hardness improvement 7 parts impact modifiers and 3 pigments.

[0032] In this embodiment, specific: a proportional adjustment ratio of Elovite, talc, mica, kaolin and wollastone, is 1: 3: 3: 2 ratio adjustment, and useful flame retardant In the preparation of the effect of combustion and anti-drop effect, after the toughness of the material, the preparation not only increased the PC / ABS flame retardant performance, but also improved the material anti-bending coefficient, in the process of practical application It is also possible to avoid damage to material flame retardancy in high temperature and high humidity environments.

[0033] In this embodiment, the specific: compatible agent is a maleic anhydride MAH graft PoE, a PE graft, SVN, methyl methacrylate-methacrylate-plated glycerylate copolymer, two component intensive. Order or a variety of mixing; the compatible agent is used to improve the disadvantages of the ABS and PC blended time compatibility, and its function is to reduce the interface tension, and the third component added increases the thickness of the interface layer and prevents dispersible coagulation. , Stabilize the formed phase form structure to increase the compatibility of the two polymers, enhance the adhesion to each other to form a stable blended structure.

[0034] In the present embodiment, specific: toughening agent is a methyl methacrylate-butadiene-styrene graft copolymer MBS, oxythylene-ethylene copolymer grafting maleic anhydride PoE-MAH isoniated; increase Tough agents are used to increase the flexibility of the adhesive film layer of the premix to improve mechanical properties.

[0035] In the present embodiment, specifically: antioxidant is four [β- (3,5-denidine 4-hydroxyphenyl) propionic acid] pentaerythritol ester; antioxidants are used to delay or inhibit the process of the polymer oxidation process. The auxiliary nitrogen process increases the life of the material.

[0036] In the present embodiment, specific: flame retardant is a phenoxy cyclo-trikraphic nitrile flame retardant; a phenoxy cyclo-phosphate flame retardant not only increases PC / ABS flame retardancy but also improved significantly. Material anti-bending coefficients can also effectively avoid damage to material flame retardancy in high temperature and high humidity in the process of practical applications.

[0037] In the present embodiment, specific: hardness modified agent is acrylic modified polytetrafluoroethylene fiber and acrylic modified nitroenimhyromide copolymer, impact modified agent is acrylic modification and maleic anhydride polymer; hardness The improved agents and impact modifiers are all improving the mechanical properties of materials and improving structural stress, and assists in improving material service life.

[0038] In the present embodiment, specific: lubricating oil is diombcomer extreme pressure lithium lipid; two high-mixing machine processing achieves uniform stress coefficient of material, and uses antioxidants and lubricants to adjust the material structure, and assist in improving materials. Mechanical properties and improved structural stress.

[0039]Further, the present invention also provides a preparation process of a waste regenerated PC / ABS alloy material, and specifically includes the following steps:

[0040] S1, first brushing the ABS moisture waste and PC moisture waste, remove impurities, after drying at 80 ° C for 2 hours by blower drying tank, is placed in a laser cutting machine.

[0041] S2, put the ABS and PC tube blocks into the high mixing machine, based on the weight percent, put the toughening agent, compatible agent, and black mother, high mixing machine cooling tank, temperature adjustment to 60 ° C The impeller is mixed with 120 r / min for 3 minutes;

[0042] S3, placing the pigment, antioxidants and half of the lubricating grease into a high-speed stirring pan, the impeller is stirred at 150 r / min for 2 minutes, and then the high mixing machine, the hardness improvement agent, impact modifier and anti-dripper together In the high mixing machine, the temperature is adjusted to 80 ° C, and the impeller is mixed at 150 r / min for 2 minutes;

[0043] S4, close the high mixing machine, take out the premix, mix with another half of the lubricating grease, a differential flame retardant and flame retardant and put it into the main feed port of the twin screw extruder, and the temperature is adjusted to 200 degrees Celsius. The host speed is adjusted to 300R / min for 1 minute, the twin screw extruder extrusion section prefabricates a vacuum machine, and mixed concentrations at 90% nitrogen during mainframe processing;

[0044] S5, after cutting, after extrusion, the PC / ABS preform is obtained, and it is placed in a blower drying box, and is taken out at 50 ° C for 30 min to obtain a PC / ABS alloy material regenerated by ABS water scrap and PC moisture waste. .

[0045] In the present embodiment, specific: pigment is an organic pigment, the organic pigment is a azo pigment.

Example Embodiment

[0046] Example 2

[0047] See Figure 1-2 The present invention also provides a technical solution: a PC / ABS alloy material based on waste regeneration, the alloy material consists of the following raw materials, and the raw material is compared with the weight of the capacity: 30 parts of ABS water, 30 parts of PC water, 4 Component, 6-compatible agent, 0.3 parts of antioxidants, 3 partial flame retardants, 2 flame retardants, 6 copies of black mother, 0.2 parts lubricating oil, 0.6 parts of anti-drop, 12 parts hardness Improved agent, 9 shock modifiers and 4 pigments.

[0048] In this embodiment, specific: a proportional tonifying ratio of Elovite, talc, mica, kaolin, and silica amphites, is 1: 3: 3: 2.

[0049] In this embodiment, specific: compatible agent is a maleic anhydride MAH graft PoE.

[0050] In the present embodiment, specific: toughening agent is methyl methacrylate-butadiene-styrene graft copolymer MBS.

[0051] In the present embodiment, specifically: an antioxidant is four [β- (3,5-denitrous 4-hydroxyphenyl) propionic acid] pentaerythritol ester.

[0052] In the present embodiment, specific: the flame retardant is a phenoxy cyclo-trikraphic flame retardant.

[0053] In the present embodiment, specific: hardness modifier is an acrylic modified polytetrafluoroethylene fiber and an acrylic modified nitroenimhyromide copolymer, and the impact modifier is acrylic modification and a maleic anhydride polymer.

[0054] In the present embodiment, specifically: lubricating oil is a distilled lithium-boss-polarized lithium lithium.

[0055] Further, the present invention also provides a preparation process of a waste regenerated PC / ABS alloy material, and specifically includes the following steps:

[0056] S1, first, the ABS water, waste, and PC moisture waste, remove impurities, and then dry the laser cutting machine by the blower drying tank for 3 hours by the blower drying tank;

[0057] S2, put the ABS and PC tube blocks into high-mixing machine, based on weight percent, put into toughening agent, compatible agent, and black mother, high mixing machine cooling tank, temperature adjustment to 70 ° C The impeller is mixed at 170 R / min for 4 minutes;

[0058] S3, placing the pigment, antioxidants and half of the lubricating grease into a high-speed stirring pan, the impeller is stirred at 180 R / min for 3 minutes, and then the high mixing machine is suspended, and the hardness improvement agent, impact modifier and anti-dripper together In the high mixing machine, the temperature is adjusted to 90 ° C, and the impeller is stirred at 18 R / min for 3 minutes;

[0059] S4, close the high mixing machine, take out the premix, mix with another half of the lubricating grease, a differential flame retardant and flame retardant and put it into the main feed port of the twin screw extruder, and the temperature is adjusted to 200 degrees Celsius. The host speed is adjusted to 450R / min for 2 minutes. The double screw extruder extruder prefabricated a vacuum machine and mixed a concentration of 90% of nitrogen during mainframe processing;

[0060] S5, after cutting, after extruding, the PC / ABS preform is obtained, and it is placed in a blower drying tank, which is taken out at 50 ° C for 40 min to obtain a PC / ABS alloy material regenerated by ABS water scrap and PC water. .

[0061] In this embodiment, specific: pigment is an organic pigment, the organic pigment is a phthalocyanine pigment.

Example Embodiment

[0062] Example three

[0063] See Figure 1-2 The present invention also provides a technical solution: a PC / ABS alloy material based on waste regeneration, the alloy material consists of the following raw materials, and the raw material is compared with the weight of the number of ABS water, 40 parts of PC water, 5 Participate tough, 8 compatible agents, 0.4 parts of antioxidants, 4 partial flame retardants, 3 flame retardants, 7 parts of black mother, 0.3 parts lubricating oil, 0.7 parts of anti-drip agent, 15 hardness Improved agent, 13 shock modified agents and 5 pigments.

[0064] In this embodiment, specific: a proportional tonifying ratio of Elovite, talc, mica, kaolin, and silica amphites, is 1: 3: 3: 2.

[0065] In this embodiment, specific: compatible agents are maleic anhydride MAH graft PoE, PE graft, SVN, methyl acrylate-methacrylate copolymer.

[0066] In this embodiment, specifically: toughening agent is methyl methacrylate-butadiene-styrene graft copolymer MBS, octene-ethylene copolymer grafted maleic anhydride PoE-MAH isoniated tough agent.

[0067] In the present embodiment, specifically: an antioxidant is four [β- (3,5-denitrous 4-hydroxyphenyl) propionic acid] pentaerythritol ester.

[0068] In the present embodiment, specific: the flame retardant is a phenoxy cyclo-trikraphic flame retardant.

[0069] In the present embodiment, specific: hardness modifier is an acrylic modified polytetrafluoroethylene fiber and an acrylic modified nitroenimhyromide copolymer, and the impact modifier is acrylic modification and a maleic anhydride polymer.

[0070] In the present embodiment, specifically: lubricating oil is a distilled lithium-boss-polarized lithium lithium.

[0071] Further, the present invention also provides a preparation process of a waste regenerated PC / ABS alloy material, and specifically includes the following steps:

[0072] S1, first of all, the ABS moisture waste and PC moisture waste was washed, remove impurities, and after drying at 80 ° C for 4 hours by blower drying tank, the laser cutting machine is placed in size.

[0073] S2, put the ABS and PC tube blocks into high-mixing machines, based on weight percent, put the toughening agent, compatible agent, and black mother, high mixing machine cooling tank, temperature adjustment to 80 ° C The impeller is mixed for 200R / min for 6 minutes;

[0074] S3, placing the pigment, antioxidants and half of the lubricating grease into a high-speed stirring pan, the impeller is stirred at 220 r / min for 4 minutes, then suspend the high mixing machine, with hardness modifier, impact modifier and anti-dripper together In the high mixing machine, the temperature is adjusted to 100 ° C, and the impeller is mixed for 4 minutes in 220 r / min;

[0075] S4, close the high mixing machine, take out the premix, mix with another half of the lubricating grease, a differential flame retardant and flame retardant and put it into the main feed port of the twin screw extruder, and the temperature is adjusted to 200 degrees Celsius. The host speed is adjusted to 550R / min for 1-3 minutes, and a vacuum machine is prefabricated by the twin screw extruder extrusion section and mixed a concentration of 90% in the mainframe;

[0076] S5, the screw is cut, and the PC / ABS preform is extruded, and it is placed in a blower drying tank, which is removed at 50 ° C for 50 min to obtain a PC / ABS alloy material regenerated by ABS water scrap and PC moisture. .

[0077] In the present embodiment, specific: pigment is an organic pigment, the organic pigment is a azo pigment.

[0078] Working principle or structural principle: Recycling as a waste-molded water opening PC and ABS material, prepared to become a PC / ABS alloy engineering, not only reaching resource recycling, avoiding polluting the environment, and comparing ABS to improve heat resistance Sex and tensile strength, compared to PC reduced melt viscosity, improve processability, reducing sensitivity to stress cracking; the present invention uses a differential flame retardant in the preparation process to form a flame retardant, and the toughness of the material is not Under the premise of affected, the preparation not only increased the PC / ABS flame retardant performance, which also significantly improves the material anti-curved coefficient, and can effectively avoid the damage of material flame retardancy in high temperature and high humidity in the process of practical applications;

[0079] The present invention utilizes a toughening agent and the alkaline substance in the material, which greatly alleviates the degradation rate of PC / ABS in a high temperature environment, and functions to rubber toughness, and effectively prevent the expansion of material silver, improve material Life; two high-mixing machine processing realizes the internal and external stress coefficient of the material to remain uniform, and the material structure is adjusted by the antioxidant and the lubricant, and the material is nitrided during extrusion, and the nitrogen atom penetrates into the surface layer of the workpiece. Chemical heat treatment Thus, the final prepared PC / ABS achieves excellent abrasion resistance, fatigue, corrosion resistance, and high temperature resistance, which can be effectively applied to a variety of different working environments.

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Description & Claims & Application Information

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Classification and recommendation of technical efficacy words

Avoid polluting the environment
Improve heat resistance, tensile strength

PC/ABS alloy material based on waste regeneration and preparation process thereof

AI-Extracted Technical Summary

Problems solved by technology

Method used

Abstract

Image

Examples

Example Embodiment

Example Embodiment

Example Embodiment

PUM

Description & Claims & Application Information

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