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Thermoplastic elastomer composition for LCP coatingas well as preparation method and application thereof

A thermoplastic elastomer and composition technology, which is applied in the field of thermoplastic elastomer composition coated with LCP and its preparation field, can solve the problems of poor adhesion and low processing temperature of LCP coating, and achieves good coating effect and processing temperature. High, improve the effect of bonding effect

Active Publication Date: 2021-05-14
KINGFA SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the defects and deficiencies of poor adhesion to LCP encapsulation due to the low processing temperature of existing thermoplastic elastomer materials, and provide a A thermoplastic elastomer composition coated with LCP, which can be encapsulated at high temperature, and the upper limit of the processing temperature can reach 300°C. It has good compatibility with LCP, good adhesion, and good encapsulation effect

Method used

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  • Thermoplastic elastomer composition for LCP coatingas well as preparation method and application thereof
  • Thermoplastic elastomer composition for LCP coatingas well as preparation method and application thereof
  • Thermoplastic elastomer composition for LCP coatingas well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A thermoplastic elastomer composition coated with LCP, including components calculated in parts by mass as shown in Table 1 below.

[0037] The preparation method of the thermoplastic elastomer composition of above-mentioned coating LCP, comprises the steps:

[0038] Put the thermoplastic elastomer into the low-speed mixer, add the plasticizer while stirring, absorb and mix all the plasticizer; put the thermoplastic elastomer containing the plasticizer and all other materials into the high-speed mixer and mix uniform; feed the mixed material into the twin-screw extruder through loss-in-weight metering, extrude at 210°C, granulate and dry to obtain a thermoplastic elastomer composition, wherein the twin-screw extruder used The aspect ratio is 60 / 1, and the residence time of the material in the screw is 80s.

Embodiment 2～8 and comparative example 1～2

[0040] The components and contents of the thermoplastic elastomer compositions of Examples 2-8 and Comparative Examples 1-2 are shown in Table 1 below, and the preparation method is the same as that of Example 1.

[0041] Components and contents thereof of the thermoplastic elastomer composition of each embodiment and comparative example of table 1

[0042]

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PUM

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Abstract

The invention discloses a thermoplastic elastomer composition for LCP coating as well as a preparation method and application thereof. According to the invention, a non-polar thermoplastic elastomer is used as a base material, and the thermoplastic elastomer composition is prepared from the base material, a plasticizer, tackifying resin and other components according to a certain ratio. The compatibility between two phases is improved by utilizing the mechanism that ester groups of the tackifying resin and amino groups in a molecular structure of the LCP are easily subjected to condensation reaction, so that the bonding force between the two phases is improved, the bonding effect between a TPE alloy material and the LCP is improved, the processing temperature is high, the TPE alloy material is used for coating the LCP, the bonding property between the TPE alloy material and the LCP can be improved, and the rubber coating effect is good. The thermoplastic elastomer composition disclosed by the invention can be widely applied to LCP coating.

Description

technical field [0001] The invention relates to the technical field of polymer materials, and more specifically, relates to a thermoplastic elastomer composition coated with LCP, a preparation method and application thereof. Background technique [0002] Liquid crystal polymer (LCP) is a new type of polymer material, which generally exhibits liquid crystallinity in the molten state. These materials have excellent heat resistance and formability. The polymerization method is mainly based on melt polycondensation, and all-aromatic LCP is mostly supplemented by solid-state polycondensation to obtain high molecular weight products. Non-fully aromatic LCP plastic raw materials are often produced by one-step or two-step melt polymerization. Tensile strength and flexural modulus can exceed various thermoplastic engineering plastics developed, and mechanical properties, dimensional stability, optical properties, electrical properties, chemical resistance, flame retardancy, good pr...

Claims

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Application Information

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IPC IPC(8): C08L53/02C08L91/00C08L51/00C08L51/06C08K13/02C08K3/26C08K5/134C08K5/526B29B9/06
CPCC08L53/025C08L91/00C08L51/006B29B9/06C08L2205/03C08K2003/265C08L2207/04C08K13/02C08K3/26C08K5/1345C08K5/526C08L51/06
Inventor 陈炜鑫黄险波叶南飚郑明嘉宁方林叶林铭王刚赵巍邱贤亮
Owner KINGFA SCI & TECH CO LTD
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