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Reinforced and anti-aging PBT composite material and preparation method thereof

A composite material and anti-aging technology, used in the field of reinforced anti-aging PBT composite materials and their preparation, can solve the problems of low notched impact strength, limited application scope, easy aging, etc., and achieve dimensional stability, excellent impact toughness, and aging resistance. good performance

Inactive Publication Date: 2015-08-19
QINGDAO WANLI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, PBT also has disadvantages such as low notched impact strength, high brittleness, easy aging, and easy decomposition under hot and humid conditions, which greatly limits its application range.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] The technical solutions of the present invention will be further described below in conjunction with specific embodiments.

[0017] A reinforced anti-aging PBT composite material, the components of which are: 76% PBT, 15% filler, 4% ethylene-ethyl acrylate-glycidyl methacrylate triblock copolymer, 2-hydroxy -4-methoxybenzophenone 2%, carbodiimide 1.2%, pentaerythritol stearate 1%, pyromellitic anhydride 0.5%, antioxidant 0.3%. Wherein, the PBT is polybutylene terephthalate; the filler is a mixture of heavy calcium carbonate, acicular wollastonite and precipitated barium sulfate with a mass ratio of 2:1:1 through aluminum-titanium composite coupling A composite filler activated by an agent, the particle size of the ground calcium carbonate is less than 5 μm, the particle size of the acicular wollastonite is between 5 and 20 μm, and the particle size of the precipitated barium sulfate is 0.5 to 1 μm; The above antioxidant is a compound of antioxidant 1076 and antioxidant...

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PUM

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Abstract

The present invention discloses a reinforced and anti-aging PBT composite material and a preparation method thereof, wherein the reinforced and anti-aging PBT composite material comprises, by mass, 60-85% of PBT, 5-20% of a filler, 2-6% of a compatilizer, 0.5-2% of an anti-aging agent, 0.5-1.5% of carbodiimide, 0.5-1% of pentaerythrityl tetrastearate, 0.1-0.5% of pyromellitic dianhydride, and 0.1-0.5% of an antioxidant, wherein the filler is the composite filler formed by carrying out an aluminum titanium composite coupling agent activation treatment on a mixed material comprising heavy calcium carbonate, needle-like wollastonite and precipitated barium sulfate according to a mass ratio of 2:1:1. The reinforced and anti-aging PBT composite material of the present invention has beneficial effects of good mechanical property maintaining, excellent impact resistance toughness, excellent stiffness, excellent thermal resistance stability, good aging resistance, stable size, simple preparation process, easy operation, and low cost, and has good practical values and prospects in the fields of electronic appliances, vehicle industry and the like.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a reinforced anti-aging PBT composite material and a preparation method thereof. Background technique [0002] PBT (polybutylene terephthalate) is a crystalline polymer with excellent comprehensive performance and wide application. It has been widely used in the automotive industry, electronic appliances and other fields. However, PBT also has disadvantages such as low notched impact strength, high brittleness, easy aging and easy decomposition under hot and humid conditions, which greatly limits its application range. Contents of the invention [0003] The purpose of the present invention is to provide a reinforced anti-aging PBT composite material with good mechanical properties, stable size and excellent impact toughness and a preparation method thereof. [0004] The technical solution adopted by the present invention to solve the technical problem is: a kind of e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L53/00C08K13/06C08K9/04C08K3/30C08K3/26C08K7/10C08K5/132C08K5/134C08K5/526C08K5/103C08K5/1539B29C47/92B29C48/92
Inventor 不公告发明人
Owner QINGDAO WANLI TECH