ABS resin with high dimensional stability and preparation method thereof

An ABS resin and dimensional stability technology, applied in the field of high dimensional stability ABS resin and its preparation, can solve the problems of large changes in plastic shrinkage, difficult dimensional stability, and inability to meet requirements, and achieve strong compressibility. , excellent appearance, the effect of improving impact resistance

Active Publication Date: 2020-04-14
SHANGHAI KUMHO SUNNY PLASTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The design of injection molds is generally based on the plastic shrinkage rate to design the size of the plastic cavity, but the general plastic is affected by the type of plastic, modification method, mold structure, and process conditions. The size changes greatly, that is, the plastic shrinkage rate changes greatly. Large, some even reach 6% change, which can not provide a good reference for mold design
[0003] With the increasing technical level requirements for modified ABS in the automobile, home appliance and other industries, high requirements are also placed on the...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A preparation method of high dimensional stability ABS resin, comprising the following steps:

[0031] (1) In parts by mass, 47 parts of ABS resin, 18 parts of Kumho, P / D181, ABS high rubber powder, 5 parts of styrene-butadiene copolymer toughener, 5 parts of ethylene methyl acrylate (EMA) toughener Toughening agent, 0.5 part of thiophenol antioxidant and 0.5 part of erucamide lubricant are mixed in a high-speed mixer to obtain a first-grade crude product; wherein, the speed of the high-speed mixer is 650-1300r / min, and the mixing time is 5 -10min;

[0032] (2) In parts by mass, mix 25 parts of Rizhisheng Fine Chemicals, EMI20000, hyperbranched styrene-acrylonitrile copolymer and the first-grade crude product in a high-speed mixer to obtain a second-grade crude product; The speed of the mixer is 650-1300r / min, and the mixing time is 5-10min;

[0033] (3) Put the secondary crude product into a twin-screw extruder, melt, extrude, cool, dry, and then pelletize in a...

Embodiment 2

[0037]A preparation method of high dimensional stability ABS resin, comprising the following steps:

[0038] (1) In parts by mass, 40 parts of ABS resin, 10 parts of Kumho, P / D181, ABS high rubber powder, 5 parts of hydrogenated ethylene-butadiene-styrene copolymer toughening agent, 5 parts of ethylene-methyl Butyl acrylate-glycidyl acrylate terpolymer toughening agent, 0.5 part of thioamine antioxidant and 0.5 part of stearic acid complex ester lubricant, mixed in a high-speed mixer to obtain a first-grade crude product; wherein, high-speed The speed of the mixer is 650-1300r / min, and the mixing time is 5-10min;

[0039] (2) In parts by mass, mix 40 parts of Rizhisheng Fine Chemicals, EMI20000, hyperbranched styrene-acrylonitrile copolymer and the first-grade crude product in a high-speed mixer to obtain a second-grade crude product; The speed of the mixer is 650-1300r / min, and the mixing time is 5-10min;

[0040] (3) Put the secondary crude product into a twin-screw ...

Embodiment 3

[0044] A preparation method of high dimensional stability ABS resin, comprising the following steps:

[0045] (1) In parts by mass, 50 parts of ABS resin, 10 parts of Kumho, P / D181, ABS high rubber powder, 10 parts of ethylene methyl acrylate toughening agent, 2 parts of N-phenylmaleimide heat resistant agent , 0.5 part of brown wax mold release agent, mixed in a high-speed mixer to obtain a first-grade crude product; wherein, the high-speed mixer rotating speed is 650-1300r / min, and the mixing time is 5-10min;

[0046] (2) In parts by mass, mix 25 parts of Rizhisheng Fine Chemicals, EMI20000, hyperbranched styrene-acrylonitrile copolymer and the first-grade crude product in a high-speed mixer to obtain a second-grade crude product; The speed of the mixer is 650-1300r / min, and the mixing time is 5-10min;

[0047] (3) Put the secondary crude product into a twin-screw extruder, melt, extrude, cool, dry, and then pelletize in a pelletizer to obtain ABS resin with high dime...

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PUM

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Abstract

The invention relates to ABS resin with high dimensional stability and a preparation method thereof. The ABS resin is prepared from the following components in parts by weight: 40 to 60 parts of ABS resin, 10 to 18 parts of ABS high rubber powder, 25 to 45 parts of highly branched styrene-acrylonitrile copolymer, 0 to 2 parts of a heat-resisting agent, 10 to 20 parts of a toughening agent and 0.5to 5 parts of an auxiliary agent. Compared with the prior art, the ABS resin with a high precision shrinkage rate is obtained by controlling the content of the high rubber powder ABS and introducing the highly branched SAN and the toughening agent, so that the ABS can be used in structural parts with high requirements on the shrinkage rate, such as automobiles, household appliances and the like, and has a wide market application prospect.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to an ABS resin with high dimensional stability and a preparation method thereof. Background technique [0002] ABS plastic is a widely used general-purpose thermoplastic, which is synthesized from acrylonitrile, butadiene and styrene as main components. Most of the ABS parts are formed by injection molding, which involves the design of injection molds. The design of injection molds is generally based on the plastic shrinkage rate to design the size of the plastic cavity, but the general plastic is affected by the type of plastic, modification method, mold structure, and process conditions. The size changes greatly, that is, the plastic shrinkage rate changes greatly. Large, and some even reach 6% change, which cannot provide a good reference for mold design. [0003] With the increasing technical level requirements for modified ABS in the automobile, home appliance and other indu...

Claims

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Application Information

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IPC IPC(8): C08L55/02C08L25/12C08L53/02C08L23/08C08K5/3415C08K5/01
CPCC08L55/02C08L2205/035C08L2205/025C08L2201/08C08L25/12C08L53/02C08L23/0869C08L53/025C08L23/0884C08K5/3415C08K5/01
Inventor 宋芸佳周霆辛敏琦
Owner SHANGHAI KUMHO SUNNY PLASTICS
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