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A kind of lcp polymer material suitable for 5g products

A technology of polymer materials and products, applied in liquid crystal materials, chemical instruments and methods, etc., can solve problems such as reducing mechanical strength, and achieve the effects of low melting temperature, high industrial application value, and low cost

Active Publication Date: 2022-03-08
SUZHOU RUNJIA ENGINEER PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Traditionally, in order to improve the melt processing performance of LCP, aromatic polymers with low melt viscosity and rigid molecular skeleton were developed by adjusting the degree of polymerization and molecular design, but it was also accompanied by a decrease in mechanical strength.

Method used

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  • A kind of lcp polymer material suitable for 5g products
  • A kind of lcp polymer material suitable for 5g products
  • A kind of lcp polymer material suitable for 5g products

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] (1) Add 60 moles of reactive monomer p-hydroxybenzoic acid, 15 moles of isophthalic acid, 15 moles of terephthalic acid, 29 moles of 4,4-diphenol and 2, 1 mole of sodium 3-dihydroxynaphthalene-6-sulfonate, 3 times of vacuum-nitrogen replacement in the reaction vessel, heating the temperature to 150 ° C, and reacting under reflux, the solvent of the reflux is selected from propionic acid, the reaction With the oxide of antimony as catalyst, consumption is 0.05% of the gross weight of reaction monomer;

[0027] (2) After the reaction is completed, continue to increase the temperature to 320°C, distill off the incompletely reacted monomers, solvents and by-products, cool down the polymer obtained in the reaction vessel, solidify, pulverize, and pass through a 20-mesh sieve. get the prepolymer;

[0028] (3) Transfer the above prepolymer to an electric oven, heat it, and gradually increase the temperature at a rate of 1°C / min under a nitrogen atmosphere, raise the temperatu...

Embodiment 2

[0030] (1) Add 60 moles of reactive monomer p-hydroxybenzoic acid, 15 moles of isophthalic acid, 15 moles of terephthalic acid, 29.5 moles of 4,4-diphenol and 2, 0.5 moles of sodium 3-dihydroxynaphthalene-6-sulfonate, 3 times of vacuum-nitrogen replacement in the reaction vessel, heating the temperature to 150 ° C, and reacting under reflux, the solvent of the reflux is selected from propionic acid, the reaction With the oxide of antimony as catalyst, consumption is 0.05% of the gross weight of reaction monomer;

[0031] The reaction conditions of step (2) and step (3) are the same as in Example 1.

Embodiment 3

[0033] (1) Add 60 moles of reactive monomer p-hydroxybenzoic acid, 15 moles of isophthalic acid, 15 moles of terephthalic acid, 29.8 moles of 4,4-diphenol and 2, 0.2 moles of sodium 3-dihydroxynaphthalene-6-sulfonate, 3 times of vacuum-nitrogen replacement in the reaction vessel, heating the temperature to 150 ° C, and reacting under reflux, the solvent of the reflux is selected from propionic acid, the reaction With the oxide of antimony as catalyst, consumption is 0.05% of the gross weight of reaction monomer;

[0034] The reaction conditions of step (2) and step (3) are the same as in Example 1.

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PUM

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Abstract

The invention provides an LCP polymer material suitable for 5G products, and its purpose is to solve the technical problem of corresponding reduction in mechanical loudness when the melting temperature is lowered when the molecular design of the LCP aromatic polymer is carried out in the prior art. It mainly includes the introduction of specific ionic aromatic monomers into the LCP polymer, so that the LCP polymer will not destroy the fluidity of the polymer during melt processing, and the interaction between the main chains of the liquid crystal polymer can be effectively generated during solidification. , therefore, exhibit the same or lower melt viscosity than the original LCP polymer before introduction, while retaining higher mechanical properties and mechanical strength. The low-cost and high-performance development of LCP polymer materials has been realized, and it has high industrial application value.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to an LCP polymer material suitable for 5G products. Background technique [0002] In the past ten years, wireless communication technology has made great progress. By the end of 2020, the fifth generation (5G) cellular connection devices have reached tens of billions. Micron-wave or millimeter-wave technology is considered the best candidate for the growing 5G demand because of its large bandwidth, although high-speed communication devices based on micron-wave or millimeter-wave have been developed, such as FR4 materials as well as polyimide materials, but in the frequency range of micron waves or millimeter waves, these materials will often cause serious degradation of dielectric properties due to water absorption. [0003] Liquid Crystal Polymer (LCP) is a heat-resistant and organic thermoplastic with ultra-low water absorption, good mechanical properties and flexibility. LCP e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G63/688C08G63/78C09K19/38
CPCC08G63/688C08G63/78C09K19/3809
Inventor 汪理文翁永华郑帅李庆贵刘正军
Owner SUZHOU RUNJIA ENGINEER PLASTIC