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Polycarbonate (PC) resin/acrylonitrile-butadiene-styrene (ABS) alloy and preparation method thereof

A technology of polycarbonate resin and ABS resin, applied in the field of polycarbonate resin/ABS alloy and its preparation, can solve the problems of poor compatibility between ABS and PC, reduced impact strength, poor mechanical properties of materials, etc., and achieve environmental protection Good toughness, good toughness, improved mechanical properties and impact strength

Inactive Publication Date: 2012-06-27
SICHUAN CHANGHONG ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the heat-resistant and flame-retardant requirements of electronic and electrical products and office supplies, the early ABS / PC alloys added more halogen compounds to meet their flame-retardant performance requirements (for example, the patent No. ZL200610036820.1 is named "modified PC / "ABS Alloy" discloses the use of bromine-based flame retardants and antimony-based flame retardants to modify PC / ABS alloys), but the flame-retardant materials containing halogen compounds will release a large amount of dense smoke and corrosive gases when burned, which is easy to Secondary disasters will be generated, and the burning will cause certain pollution to the environment
With the corresponding promulgation of European RoHS and REACH directives, the application of halogen series flame retardants has been restricted; in addition, ABS / PC products containing halogen flame retardants still have some defects: the compatibility of ABS and PC is poor, resulting in The mechanical properties of the material are not good; the impact strength of the ABS / PC alloy material is poor, especially at low temperature, its impact strength decreases sharply

Method used

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  • Polycarbonate (PC) resin/acrylonitrile-butadiene-styrene (ABS) alloy and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0080] Preparation and performance of embodiment 1 polycarbonate resin / ABS alloy

[0081] Take various raw materials according to the raw material formula of Table 1, wherein ABS resin (the weight percentage content of methyl acrylate is 22%, Vicat softening point is greater than 105 ℃, under the condition of 200 ℃ / 5Kg, its melting index is at 1.5g / 10min), compatibilizer (styrene series graft copolymer, wherein the weight percent content of styrene is 35%) and toughening agent (methyl acrylate-butadiene-styrene terpolymer, wherein methyl acrylate The weight percentage content is 25%, the butadiene content is 15%, and the styrene content is 60%); before use, they are dried at 80°C for 3 hours; PC resin is dried at 125°C for 3 hours before use , Add various raw materials (including auxiliary materials) into the high-speed mixer and mix at high speed for 2 minutes, and then discharge at low speed. The mixed material was melted and granulated to obtain polycarbonate resin / ABS al...

Embodiment 2-5

[0082] Preparation and performance of embodiment 2-5 polycarbonate resin / ABS alloy

[0083] The preparation method of Examples 2-5 is the same as that of Example 1, and the specific raw material ratio is shown in Table 1; the products of Examples 2-5 are tested according to the national standard, and the product performance data are shown in Table 2.

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Abstract

The invention relates to the technical field of polymer engineering plastics, in particular to polycarbonate (PC) resin / acrylonitrile-butadiene-styrene (ABS) alloy and a preparation method thereof, and provides high-impact-strength halogen-free flame retardant PC resin / ABS alloy. The PC resin / ABS alloy is prepared from the following raw materials in part by weight: 20 to 50 parts of ABS resin, 30 to 60 parts of PC resin, 2 to 20 parts of halogen-free flame retardant, 1 to 15 parts of compatilizer, and 3 to 30 parts of toughening agent. The ratio of ABS to PC in the alloy material can be adjusted reasonably, the added halogen-free flame retardant ensures that the flame retardant property of the alloy material can reach the American UL94V-0-grade requirement, does not contain halogen, does not release a large amount of dense smoke or corrosive toxic gas when combusted, and has the advantages of high safety and environment-friendliness and the like. The added compatilizer and toughening agent can obviously improve the mechanical property and impact strength of the alloy material, and ensures that the ABS / PC alloy material has high toughness at low temperature of -40 DEG C.

Description

technical field [0001] The invention relates to the technical field of polymer engineering plastics, in particular to a polycarbonate resin / ABS alloy and a preparation method thereof. Background technique [0002] Acrylonitrile-butadiene-styrene resin (ABS) is a new type of general-purpose thermoplastic engineering plastic developed in the 1940s. It is a graft copolymer of styrene, acrylonitrile and butadiene monomers. Terpolymer. It has excellent electrical properties, chemical resistance, impact resistance, coloring performance and dimensional stability, and is easy to process and shape, but its heat resistance and weather resistance are poor. Polycarbonate (PC) resin has good transparency, high heat resistance, good light stability, good dimensional stability, and good toughness, but it is sensitive to notches, the product has high internal stress, high melt viscosity, poor fluidity, and difficult molding. [0003] The blend of ABS and PC resin as the main raw material ...

Claims

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Application Information

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IPC IPC(8): C08L69/00C08L55/02C08K13/02C08K5/521C08K3/32C08K5/3492C08K5/29C08K5/315B29C47/92B29C48/92
CPCB29C48/92B29C2948/92704B29C2948/92895
Inventor 雷春堂周刚潘晓勇王炼陈伟纪敏聂军
Owner SICHUAN CHANGHONG ELECTRIC CO LTD
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