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PBT/PC/ASA composite material and preparation method thereof

A composite material and PBT resin technology, applied in the field of PBT/PC/ASA composite material and its preparation, can solve the problems of low low temperature impact resistance, limit the application of composite materials, warpage, etc., and achieve improved and excellent warpage resistance Warpage resistance and low mold shrinkage

Active Publication Date: 2018-05-18
横店集团得邦工程塑料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the anisotropic properties of ordinary glass fibers, glass fiber reinforced composites have serious warping problems when preparing large thin-walled parts or parts with complex geometries, which limits their application in some fields.
In addition, the low impact strength of low temperature resistance will also limit the application of composite materials in the field of low temperature environment.

Method used

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  • PBT/PC/ASA composite material and preparation method thereof
  • PBT/PC/ASA composite material and preparation method thereof
  • PBT/PC/ASA composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Weigh 45 parts by weight of PBT resin, 10 parts by weight of PC resin, 5 parts by weight of ASA resin, 3 parts by weight of styrene-acrylonitrile-glycidyl methacrylate copolymer, 2 parts by weight of low-temperature vulcanized silicone rubber, antioxidant 0.6 parts by weight, 0.5 parts by weight of lubricant, added to the high mixer in a certain order and mixed evenly, added to the twin-screw extruder through the main feeding hopper, and 20 parts by weight of special glass fiber was added through the glass fiber port at the same time, Through twin-screw extruder melting, mixing, extrusion, and granulation, the anti-warping and low-temperature impact glass fiber reinforced PBT / PC / ASA composite material is obtained. 240°C, 240°C in the third zone, 240°C in the fourth zone, 245°C in the fifth zone, 240°C in the sixth zone, 235°C in the seventh zone, 235°C in the eighth zone, and 245°C of the machine head; the speed of the main engine is 300rpm.

Embodiment 2

[0036] Weigh 30 parts by weight of PBT resin, 15 parts by weight of PC resin, 10 parts by weight of ASA resin, 3 parts by weight of styrene-acrylonitrile-glycidyl methacrylate copolymer, 2 parts by weight of low-temperature vulcanized silicone rubber, antioxidant 0.6 parts by weight, 0.5 parts by weight of lubricant, added to the high mixer in a certain order and mixed evenly, added to the twin-screw extruder through the main feeding hopper, and 20 parts by weight of special glass fiber was added through the glass fiber port at the same time, Through twin-screw extruder melting, mixing, extrusion, and granulation, the anti-warping and low-temperature impact glass fiber reinforced PBT / PC / ASA composite material is obtained. 240°C, 240°C in the third zone, 240°C in the fourth zone, 245°C in the fifth zone, 240°C in the sixth zone, 235°C in the seventh zone, 235°C in the eighth zone, and 245°C of the machine head; the speed of the main engine is 300rpm.

Embodiment 3

[0038] Weigh 45 parts by weight of PBT resin, 10 parts by weight of PC resin, 5 parts by weight of ASA resin, 6 parts by weight of glass beads, 3 parts by weight of styrene-acrylonitrile-glycidyl methacrylate copolymer, low-temperature vulcanized silicone rubber 2 parts by weight, 0.6 parts by weight of antioxidant, 0.5 parts by weight of lubricant, added to the high mixer in a certain order and mixed evenly, added to the twin-screw extruder through the main feeding hopper, and 16 parts by weight of special glass The fiber is added through the glass fiber port, melted, kneaded, extruded, and granulated by a twin-screw extruder to obtain a warpage-resistant and low-temperature impact-resistant glass fiber reinforced PBT / PC / ASA composite material. The temperatures of each section are: Zone 1 Temperature 210°C, zone 2 temperature 240°C, zone 3 temperature 240°C, zone 4 temperature 240°C, zone 5 temperature 245°C, zone 6 temperature 240°C, zone 7 temperature 235°C, zone 8 temperatu...

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Abstract

The invention discloses a PBT / PC / ASA composite material, which comprises the following components by weight: 30-50 parts of PBT resin; 10-15 parts of PC resin; 5-10 parts of ASA resin; 10-30 parts ofspecial glass fiber; 4-10 parts of glass bead; 3-7 parts of a compound low temperature toughening agent; 0.1-0.8 part of an antioxidant; and 0.1-0.5 part of a lubricant. The invention also discloses apreparation method of the PBT / PC / ASA composite material. The ternary composite material prepared by the method provided by the invention has the characteristics of low molding shrinkage and warpage resistance, and also can maintain good impact toughness in a low temperature environment.

Description

technical field [0001] The invention belongs to the field of composite wave-absorbing material manufacturing, and in particular relates to a PBT / PC / ASA composite material and a preparation method thereof. Background technique [0002] Polybutylene terephthalate (PBT) is a thermoplastic engineering plastic with excellent comprehensive properties, which has high mechanical strength, outstanding chemical resistance, heat resistance and good electrical insulation properties. At the same time, the crystallization speed is fast, the fluidity is good, the molding cycle is short, and the injection molding processing performance is good, and it is widely used in the fields of automobiles, electronic appliances, and machinery manufacturing. However, PBT has defects such as large molding shrinkage and low low-temperature impact strength. [0003] PC resin has high impact strength, and ASA is an acrylonitrile-acrylate-styrene terpolymer, which has good weather resistance and good dimen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L69/00C08L51/04C08L25/12C08L83/04C08K13/06C08K9/06C08K7/14C08K7/20C08K5/103
CPCC08L67/02C08L2205/025C08L2205/035C08L2207/53C08L69/00C08L51/04C08L25/12C08L83/04C08K13/06C08K9/06C08K7/14C08K7/20C08K5/103
Inventor 蒋新伟陆龙威张世杰卜和安卢勇
Owner 横店集团得邦工程塑料有限公司
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