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Modified plastic and manufacturing method thereof

A plastic and modified technology, applied in the field of materials, can solve the problems of low notch impact strength, easy to be corroded by halogenated hydrocarbons, large molding shrinkage rate, etc., to achieve the effect of low molding shrinkage rate, overcoming notch sensitivity, and improving mechanical properties

Inactive Publication Date: 2017-11-10
深圳市新合富力科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its notched impact strength is low, the molding shrinkage is large, the hydrolysis resistance is poor, and it is easily corroded by halogenated hydrocarbons.

Method used

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  • Modified plastic and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Embodiment 1: a kind of modified plastic, the mass percent of each component is:

[0022] Polybutylene terephthalate 60%;

[0023] Toughener 1%;

[0024] Lubricant 0.4%;

[0025] Compatibilizer 2.7%;

[0026] Reinforcing agent glass fiber 33%;

[0027] Nanomaterials 0.6%;

[0028] Antioxidant 0.8%;

[0029] Coupling agent 1.5%.

Embodiment 2

[0030] Embodiment two: a kind of modified plastics, the mass percent of each component is:

[0031] Polybutylene terephthalate (PBT) 65%;

[0032] Toughener 1%;

[0033] Lubricant 0.4%;

[0034] Compatibilizer 2%;

[0035] Reinforcing agent glass fiber 29%;

[0036] Nanomaterials 0.5%;

[0037] Antioxidant 0.8%;

[0038] Coupling agent 1.3%.

Embodiment 3

[0039] Embodiment three: a kind of modified plastic, the mass percent of each component is:

[0040] Polybutylene terephthalate (PBT) 58%;

[0041] Toughener 1%;

[0042] Lubricant 0.4%;

[0043] Compatibilizer 3%;

[0044] Reinforcing agent glass fiber 35%;

[0045] Nanomaterials 0.6%;

[0046] Antioxidant 0.8%;

[0047] Coupling agent 1.2%.

[0048] A method for manufacturing modified plastics, the steps are as follows:

[0049] S1 Dry the polybutylene terephthalate at 120°C-140°C, and dry the nanomaterial at 100°C-110°C for use;

[0050] S2 Weigh the dry polybutylene terephthalate and nanomaterials according to a certain mass percentage ratio, add them to the high-speed mixer, and add glass fiber, toughening agent and lubricant according to the mass percentage ratio at the same time , compatibilizer, coupling agent, and antioxidant, stirred for 10 minutes, and discharged after being fully mixed;

[0051] S3 Place the mixed material in a twin-screw extruder and comp...

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PUM

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Abstract

The invention discloses a modified plastic which comprises the following components in percentage by mass: 55-75% of polybutylene terephthalate, 1-1.5% of toughener, 0.3-0.5% of lubricant, 1-3% of compatilizer, 23-40% of reinforcer glass fiber, 0.2-0.8% of nano material, 0.4-0.8% of antioxidant and 1.0-2.0% of coupling agent. The modified plastic disclosed by the invention overcomes the defect of notch sensitiveness of the polybutylene terephthalate, and has the advantages of low molding shrinkage, greatly higher mechanical properties and favorable stability. The invention also discloses a manufacturing method of the modified plastic.

Description

technical field [0001] The invention relates to the technical field of materials, in particular to a modified plastic and a manufacturing method thereof. Background technique [0002] Polybutylene terephthalate (PBT) has excellent comprehensive properties, such as high crystallinity, rapid prototyping, weather resistance, low friction coefficient, high heat distortion temperature, good electrical properties, excellent mechanical properties, fatigue resistance , Ultrasonic welding, etc. However, its notched impact strength is low, molding shrinkage is large, hydrolysis resistance is poor, and it is easily corroded by halogenated hydrocarbons. Contents of the invention [0003] An object of the present invention is to provide a modified plastic. [0004] The technical solution adopted by the modified plastic disclosed in the present invention is: a modified plastic, including polybutylene terephthalate, toughening agent, lubricant, compatibilizer, reinforcing agent glass f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L33/12C08L33/14C08L33/08C08K13/04C08K7/14B29C47/92B29C48/92
CPCC08L67/02B29C48/92B29C2948/92514B29C2948/92704C08K2201/011C08L33/12C08K13/04C08K7/14C08L33/14C08L33/08
Inventor 张文涛
Owner 深圳市新合富力科技有限公司
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