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Aging-resistant PC (Polycarbonate) -PBT (Polybutylene Terephthalate) plastic alloy

A technology of PC-PBT and plastic alloy, which is applied in the field of plastic alloy, can solve the problems of poor anti-aging performance and achieve excellent thermal aging performance, high low-temperature impact strength and good heat resistance

Inactive Publication Date: 2013-10-16
深圳市高科塑化有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the current PC-PBT plastic alloys have poor aging resistance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Each raw material was weighed according to the data corresponding to Example 1 in Table 1. Put each component into a high-speed mixer, control the rotation speed at 300-400 rpm at room temperature, mix for 5-10 minutes, take it out and transfer it to a screw extruder, and extrude at a temperature of 230-260°C for granulation , Obtain anti-aging PC-PBT plastic alloy.

[0023] Table 1: Anti-aging PC-PBT plastic alloy formula table Unit: kg

[0024]

Example 1

Example 2

Example 3

Example 4

PC resin

100

100

100

100

PBT resin

30

30

30

30

Compatibilizer EBA-GMA

6

6

6

6

4,4'-Thiobis(6-tert-butyl-3-methylphenol)

0.4

0.8

/

0.5

1,1,3-tris(2-methyl-4-hydroxy-5-tert-butylphenyl)butane

0.4

/

0.8

0.5

Dioctadecyl Thiodipropionate

0.2

0.2

0.2

/

[0025] The PC resin is the injection molding grade PC resin of Teijin C...

Embodiment 2-4

[0029] Each raw material was weighed according to the data corresponding to Examples 2-4 in Table 1. The method described in Example 1 was used to prepare the anti-aging PC-PBT plastic alloy.

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PUM

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Abstract

The invention discloses an aging-resistant PC-PBT plastic alloy, which is composed of the following components in weight part: 100 parts of PC, 20-40 parts of PBT, 4-8 parts of compatibilizer and 0.5-1.5 parts of age resister. The PC-PBT plastic alloy disclosed by the invention has the advantages of good thermal tolerance, good stress cracking resistance, excellent abrasive resistance, excellent chemical corrosive resistance, high low-temperature impact strength, easiness in machining and good coating property, and is mainly applied to bumpers, chassis and panels of superior quality cars, fenders of motorcycles and the like. The aging-resistant PC-PBT plastic alloy also has excellent thermal aging property, thereby being suitable for use in the extremely high temperature environment.

Description

technical field [0001] The invention relates to a plastic alloy, in particular to an anti-aging PC-PBT plastic alloy. Background technique [0002] Polycarbonate, referred to as PC, is a high molecular polymer containing carbonate groups in the molecular chain. According to the structure of the ester group, it can be divided into aliphatic, aromatic, aliphatic-aromatic and other types. Among them, the low mechanical properties of aliphatic and aliphatic-aromatic polycarbonates limit their application in engineering plastics. At present, only aromatic polycarbonate has been industrialized. Due to the special structure of polycarbonate, it has become the fastest-growing general-purpose engineering plastic among the five major engineering plastics. [0003] Polybutylene terephthalate, English name: polybutylene terephthalate, referred to as PBT, belongs to the polyester series, which is composed of 1.4-pbt butanediol (1.4-Butylene glycol) and terephthalic acid (PTA) or tereph...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L67/02C08K5/375C08K5/13C08K5/372
Inventor 黄美蓉
Owner 深圳市高科塑化有限公司
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