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PPO/LCP (poly phenylene oxide/liquid crystal polymer) composite material and preparation method thereof

A technology of composite materials and mixtures, which is applied in the field of PPO/LCP composite materials and their preparation, and can solve the problems such as not being able to fully meet the requirements.

Active Publication Date: 2019-10-08
NANJING QINGYAN POLYMER NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

LCP plastic raw materials have high strength, high rigidity, high temperature resistance, electrical insulation, etc., and are used in electronics and electrical fields. However, the surface assembly welding technology of electronics and electrical has great influence on the dimensional stability and heat resistance of materials. High requirements, existing LCP materials cannot fully meet the requirements

Method used

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Examples

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Effect test

preparation example Construction

[0028] A kind of PPO / LCP composite material and preparation method thereof, comprises the following steps:

[0029] (1) Drying liquid crystal polymer and polyphenylene ether separately to obtain dried liquid crystal polymer and polyphenylene ether;

[0030] (2) uniformly mixing the liquid crystal polymer, polyphenylene ether, and short glass fiber, compatibilizer, antioxidant, lubricant, and inorganic filler in parts by weight after drying in step (1) to obtain a mixture;

[0031] (3) The mixture obtained in step (2) is extruded and granulated through an extruder.

[0032] Further, the temperature of the extruder is: the temperature of the first zone is 260-270°C, the temperature of the second zone is 275-285°C, the temperature of the third zone is 275-285°C, the temperature of the fourth zone is 275-285°C, the temperature of the fifth zone is 280-290°C, and the temperature of the sixth zone The temperature is 280-290°C, the temperature in the seventh zone is 280-290°C, the t...

Embodiment 1

[0035] Weigh 30 parts of liquid crystal polymer, 30 parts of polyphenylene ether, 20 parts of short glass fiber, 20 parts of inorganic filler, 8 parts of compatibilizer, 0.3 part of antioxidant, 0.6 part of lubricant, mix them evenly, and extrude to make Granules, the temperature of the extruder is: the temperature of the first zone is 265°C, the temperature of the second zone is 280°C, the temperature of the third zone is 280°C, the temperature of the fourth zone is 280°C, the temperature of the fifth zone is 285°C, the temperature of the sixth zone is 285°C, the temperature of the seventh zone is 285°C, The temperature in the eighth zone is 280°C, and the temperature of the machine head is 270°C. The performance results are shown in Table 1.

Embodiment 2

[0037] Weigh 70 parts of liquid crystal polymer, 10 parts of polyphenylene ether, 10 parts of short glass fiber, 10 parts of inorganic filler, 5 parts of compatibilizer, 0.5 part of antioxidant, 1 part of lubricant, mix them evenly, and extrude to make Granules, the temperature of the extruder is: the temperature of the first zone is 260°C, the temperature of the second zone is 275°C, the temperature of the third zone is 275°C, the temperature of the fourth zone is 275°C, the temperature of the fifth zone is 280°C, the temperature of the sixth zone is 280°C, the temperature of the seventh zone is 280°C, The temperature in the eighth zone is 275°C, and the temperature of the machine head is 265°C. The performance results are shown in Table 1.

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PUM

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Abstract

The invention relates to the technical field of macromolecule materials and in particular to a PPO / LCP (poly phenylene oxide / liquid crystal polymer) composite material and a preparation method thereof. The composite material comprises the following raw materials in parts by weight: 30-70 parts of a liquid crystal polymer, 10-30 parts of polyphenyl ether, 10-20 parts of a short glass fiber, 10-20 parts of an inorganic filler, 2-8 parts of a compatilizer, 0.1-0.5 part of an antioxidant and 0.5-1 part of a lubricant. The composite material provided by the invention is good in high temperature resistance, good in size stability and applicable to manufacturing of small-size electronic appliances.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a PPO / LCP composite material and a preparation method thereof. Background technique [0002] Polyphenylene oxide (PPO) has excellent mechanical strength, stress relaxation resistance, creep resistance, heat resistance, water resistance, dimensional stability, flame retardant and self-extinguishing. Its dielectric constant and dielectric loss are one of the smallest varieties among engineering plastics. It is hardly affected by temperature and humidity, and can be used in low, medium and high frequency fields. The main disadvantages are poor melt fluidity, difficult processing and molding, and poor resistance to inorganic acids, alkalis, aromatic hydrocarbons, halogenated hydrocarbons, and oils. [0003] Liquid crystal polymer (LCP) has excellent thermal stability, heat resistance and chemical resistance, and is excellent in wear resistance and wear reductio...

Claims

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Application Information

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IPC IPC(8): C08L71/12C08L101/12C08L51/08C08K13/04C08K7/14C08K3/34C08K5/134
CPCC08L71/123C08L101/12C08L2205/035C08L2201/08C08L2203/20C08L51/08C08K13/04C08K7/14C08K3/34C08K5/1345
Inventor 闫茹胡求学张奇张东宝
Owner NANJING QINGYAN POLYMER NEW MATERIAL CO LTD
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