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Low dielectric constant liquid crystal polyester resin compound and preparation method thereof

A technology of resin composites and low dielectric constants, which is applied in the direction of liquid crystal materials, chemical instruments and methods, etc., can solve the problems of poor dielectric properties of liquid crystal polyester resin composites, and achieve the reduction of dielectric constant and good phase The effect of capacitive and mature technology

Active Publication Date: 2019-04-12
JIANGSU WATER SPECIAL MATERIAL MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a low dielectric constant liquid crystal polyester resin compound and its preparation method, aiming to solve the problem of poor dielectric properties of the liquid crystal polyester resin compound

Method used

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  • Low dielectric constant liquid crystal polyester resin compound and preparation method thereof
  • Low dielectric constant liquid crystal polyester resin compound and preparation method thereof
  • Low dielectric constant liquid crystal polyester resin compound and preparation method thereof

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preparation example Construction

[0038] And, an embodiment of the present invention provides a method for preparing a low dielectric constant liquid crystal polyester resin compound, comprising the following steps:

[0039] S01. Weigh each component according to the formula of the above-mentioned low dielectric constant liquid crystal polyester resin compound, wherein the additive is ultra-high molecular weight polyethylene, and the number-average molecular weight of the ultra-high molecular weight polyethylene is 1.15 million- 5.9 million;

[0040] S02. Drying the wholly aromatic liquid crystal polyester resin, additives, and fillers;

[0041] S03. Mix the dried additives and fillers uniformly to obtain a mixture;

[0042] S04. Feed the mixture and the wholly aromatic liquid crystal polyester resin, melt extrude through a twin-screw extruder, draw, cool, and granulate.

[0043] Specifically, in the above-mentioned step S01, the formulation of the low dielectric constant liquid crystal polyester resin compo...

Embodiment 1

[0056] A low dielectric constant liquid crystal polyester resin compound, containing the components shown in Table 1, Example 1, in weight percent.

[0057] The preparation method of described low dielectric constant liquid crystal polyester resin compound, comprises the following steps:

[0058] S11. Weigh each component according to the formula of the above-mentioned wholly aromatic liquid crystal polyester resin compound;

[0059] S12. Drying the wholly aromatic liquid crystal polyester resin, additives, and fillers at 130° C. for 4 hours;

[0060] S13. Put the dried additives and fillers into an automatic mixer and mix evenly to obtain a mixture;

[0061] S14. Feed the mixture and the wholly aromatic liquid crystal polyester resin, melt extrude through a twin-screw extruder, draw, cool, and granulate.

Embodiment 2

[0063] A low dielectric constant liquid crystal polyester resin compound, containing the components shown in Table 1, Example 2 in weight percentage.

[0064] The preparation method of the low dielectric constant liquid crystal polyester resin compound is the same as that of Example 1.

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Abstract

The invention provides a liquid crystal polyester resin complex with low dielectric constant. The liquid crystal polyester resin complex is prepared from components in parts by weight as follows: 60-90 parts of liquid crystal polyester resin, 1-10 parts of an additive and 10-40 parts of filler, wherein the liquid crystal polyester resin adopts wholly aromatic liquid crystal polyester resin which is formed by polymerizing reaction monomers, and the reaction monomers comprise at least one of free aromatic diamine and aromatic hydroxylamine, aromatic hydroxycarboxylic acid or aromatic aminocarboxylic acid, aromatic glycol and aromatic dicarboxylic acid; the additive adopts UHMWPE (ultra-high-molecular-weight polyethylene), and the number-average molecular weight of the UHMWPE is 1.15-5.9 million.

Description

technical field [0001] The invention belongs to the field of polymer composite materials, and in particular relates to a low dielectric constant liquid crystal polyester resin composite and a preparation method thereof. Background technique [0002] In recent years, with the rapid development of the electronic information industry, the development trend of high-frequency electronic equipment has become more and more obvious, especially the rapid development of electronic products, communication products, and satellite transmission. Electronic components require higher-performance materials to lay the foundation, so higher requirements are placed on the performance of fully aromatic liquid crystal polyester resin (LCP) as a raw material for electronic components. The high-frequency resistance of materials is determined by the dielectric properties. The dielectric constant (Dk) must be small and stable. The signal transmission rate is inversely proportional to the square root ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L77/12C08L67/00C08L23/06C08K7/14C09K19/54
CPCC08L67/00C08L77/12C08L2201/08C08L2203/20C08L2207/068C09K19/542C08L23/06C08K7/14
Inventor 金东植周小宇高海燕杨云飞
Owner JIANGSU WATER SPECIAL MATERIAL MFG CO LTD
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