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Thermoplastic elastomer for being subjected to secondary injection adhesion with PBT (polybutylene terephthalate) material and composite molding product using same

A thermoplastic elastomer and matrix resin technology, applied in the field of thermoplastic elastomer and composite molded products, can solve the problems of high cost and poor adhesion of PBT materials, and achieve the effect of good molding, high fluidity and low hardness

Active Publication Date: 2012-06-13
SUNGALLON PLASTICS SHENZHEN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the existing thermoplastic elastomers used as PBT coating materials have high material costs and poor adhesion to PBT materials

Method used

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  • Thermoplastic elastomer for being subjected to secondary injection adhesion with PBT (polybutylene terephthalate) material and composite molding product using same
  • Thermoplastic elastomer for being subjected to secondary injection adhesion with PBT (polybutylene terephthalate) material and composite molding product using same
  • Thermoplastic elastomer for being subjected to secondary injection adhesion with PBT (polybutylene terephthalate) material and composite molding product using same

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Embodiment Construction

[0019] The thermoplastic elastomer used for secondary shot bonding with PBT material will be further described in detail below in conjunction with the embodiment.

[0020] The thermoplastic elastomer used for secondary injection bonding with PBT material of one embodiment, by weight percentage, includes:

[0021] Matrix resin 18% ~ 45%;

[0022] Tackifying resin 5% to 10%;

[0023] Polar resin 10% ~ 35%;

[0024] Mineral oil 15%~40%;

[0025] Filler 0~35%.

[0026] Among them, the matrix resin is preferably one or a mixture of styrene-ethylene-butadiene-styrene block copolymer (SEBS) and styrene-ethylene-propylene-styrene block copolymer (SEEPS) . The role of the matrix resin is to make the material have a good feel and excellent weather resistance.

[0027] Specifically, SEBS may be: SEBS1641, SEBS1654, SEBS1535, SEBS1536, SEBS6924 of Kraton Company of the United States. Specifically, the SEEPS can be SEEPS4077 and SEEPS4055 of Kuraray Company of Japan.

[0028] Among...

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Abstract

The invention relates to a thermoplastic elastomer for being subjected to secondary injection adhesion with a PBT (polybutylene terephthalate) material, which comprises the following components in percentage by weight: 18 to 45 percent of matrix resin, 5 to 10 percent of tackifying resin, 10 to 35 percent of polar resin, 15 to 40 percent of mineral oil and 0 to 35 percent of fillers. A coupling agent is not used in a composition formula of the thermoplastic elastomer for being subjected to secondary injection adhesion with the PBT material, so that compounding material components are reduced,the cost is reduced, the thermoplastic elastomer has high elasticity and high liquidity and is convenient to industrially produce and the performance of a product is more stable. Moreover, the thermoplastic elastomer in a prepared composite molding product is firmly adhered to the PBT material, is well molded, has lower hardness than the conventional product and has better handfeel.

Description

【Technical field】 [0001] The invention relates to the field of macromolecular materials, in particular to a thermoplastic elastomer used for secondary injection bonding with PBT materials and a composite molded product using the thermoplastic elastomer. 【Background technique】 [0002] Polybutylene terephthalate (PBT) is a crystalline linear saturated polyester resin, a class of thermoplastic engineering plastics developed and industrialized by Clanese Corporation of the United States in the 1970s. It has the characteristics of fast crystallization speed, excellent electrical properties, and small changes with temperature and humidity, and good weather resistance. It is suitable for outdoor use and is an ideal material for the electronics and electrical industries. It is widely used in electronics, electrical, automobiles, household appliances, Power tools, sports equipment and other fields. [0003] However, the surface of PBT products is hard and smooth, and lacks texture ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L53/02C08L23/08C08L25/16C08L25/14C08L51/00C08L51/06C08L67/02C08K13/02C08K3/26C08K3/34C08K3/30
Inventor 李萍王雪峰邱廷模
Owner SUNGALLON PLASTICS SHENZHEN CO LTD