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Low-after-contraction ABS (Acrylonitrile Butadiene Styrene) composite material and preparation method thereof

A composite material and aftershrinkage technology, which is applied in the field of low aftershrinkage ABS composite materials and its preparation, can solve problems such as limiting the normal use of materials, and achieve the effects of improving processing formability, optimizing elongation at break, and reducing aftershrinkage

Inactive Publication Date: 2018-02-16
SUZHOU RUNJIA ENGINEER PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Therefore, ABS and its alloy materials have post-shrinkage, and a series of problems (warping, deformation, shrinkage, etc.) caused by post-shrinkage, in many cases, limit the normal use of the material

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1~7

[0026] Weigh the raw materials according to the corresponding components and parts by weight in Table 1; dry-mix the above-mentioned components in a high-speed mixer for 3-5 minutes; place the mixed material in a twin-screw extruder, and melt and extrude , granulation to obtain pellets of low-odor polypropylene material, the process control conditions are: 180-190°C in the first zone, 200-210°C in the second zone, 200-210°C in the third zone, 210-215°C in the fourth zone, and 210-215°C in the fifth zone. 210~215℃, 210~215℃ in the sixth zone, 215~225℃ in the seventh zone, 215~225℃ in the eighth zone, 215~225℃ in the ninth zone, 215~225℃ in the tenth zone; the residence time is 1-2min, and the pressure is 12 -18MPa.

[0027] Table 1

[0028] components

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PUM

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Abstract

The invention discloses a low-after-contraction ABS (Acrylonitrile Butadiene Styrene) composite material and a preparation method thereof. The ABS composite material comprises the following componentsin parts by weight: 0-60 parts of PC (Polycarbonate), 40-90 parts of ABS (Acrylonitrile Butadiene Styrene), 1-8 parts of a compatilizer, 1-5 parts of a thermal resistant agent and 1 part of an agingaid, wherein the compatilizer is a mixture of MBS (Methyl Methacrylate), an SMA (Shape Memory Alloy), grafted ABS and AC (Activated Carbon). By adopting the efficient compatilizer system, the processing molding properties of ABS and a PC alloy thereof are remarkably improved, the after-contraction of the material is degraded, and a molded product is not changed along with placing time.

Description

technical field [0001] The invention relates to a low aftershrinkage ABS composite material and a preparation method thereof, belonging to the technical field of polymer composite materials. Background technique [0002] ABS resin is a thermoplastic polymer material with high strength, good toughness, easy processing and high cost performance. It is suitable for making general mechanical parts, wear-reducing and wear-resistant parts, transmission parts and electrical parts. Poor performance, poor mechanical properties and flammability limit its application. PC is a high-toughness thermoplastic resin with excellent properties such as transparency, heat resistance, corrosion resistance, high impact strength, and excellent electrical insulation. The ABS / PC blend obtained by melt blending ABS and PC has easy processing, good low temperature toughness, excellent impact resistance and good heat resistance, so it is used as an important commercial material in many processing and m...

Claims

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Application Information

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IPC IPC(8): C08L69/00C08L55/02C08L51/04C08L35/06C08L33/12B29C47/92B29C48/92
CPCC08L55/02C08L69/00B29C48/04B29C48/92B29C2948/92514B29C2948/92704C08L2205/08C08L2205/035C08L51/04C08L35/06C08L33/12
Inventor 汪理文李庆贵何腾飞周明翁永华丁贤麟
Owner SUZHOU RUNJIA ENGINEER PLASTIC