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Polyphenylene sulfide composite material, preparation method thereof and injection molded part

A polyphenylene sulfide and composite material technology, which is applied in the field of polymer composite materials, can solve the problems of material strength and heat resistance, and achieve the effects of good thermal conductivity, improved crystallization and high modulus.

Pending Publication Date: 2021-01-26
广东华聚科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although PP improves the dispersion ability of CF in the PPS substrate to a certain extent, effectively inhibits the crystallization of PPS, and further improves the fluidity of the polymer melt, but at the same time, it will also have a certain impact on the strength and heat resistance of the material. influences

Method used

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  • Polyphenylene sulfide composite material, preparation method thereof and injection molded part
  • Polyphenylene sulfide composite material, preparation method thereof and injection molded part
  • Polyphenylene sulfide composite material, preparation method thereof and injection molded part

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preparation example Construction

[0037]The present invention provides a method for preparing a polyphenylene sulfide composite material. The specific steps are as follows:

[0038]Mix polyphenylene sulfide, thermotropic liquid crystal polyarylate, compatibilizer, coupling agent, antioxidant, lubricant and carbon fiber, and melt and extrude.

[0039]In a specific example, polyphenylene sulfide, thermotropic liquid crystal polyarylate, compatibilizer, coupling agent, antioxidant, lubricant, and carbon fiber are mixed uniformly, and then melted, extruded, cooled, pelletized, and dried. , That is, polyphenylene sulfide composite material.

[0040]In a specific example, the PPS, TLCP, compatibilizer, coupling agent, antioxidant, and lubricant are mixed uniformly, and then added to the main feed port of the twin-screw extruder. The carbon fiber is added through the side feeder for processing and processing. The temperature is 250°C to 300°C, and the polyphenylene sulfide composite material is obtained by cooling, drying and pelle...

Embodiment 1

[0047]This embodiment provides a polyphenylene sulfide composite material, which includes the following raw material components by weight percentage:

[0048]

[0049]The preparation method of the above-mentioned polyphenylene sulfide composite material is as follows:

[0050]The polyphenylene sulfide, TLCP, compatibilizer, coupling agent, lubricant, and antioxidant are stirred in a high-speed mixer for 3 minutes and then added to the twin-screw extruder. The carbon fiber is added through the side feeding device, and the twin-screw extruder The machining process is as follows: temperature in zone one is 280℃, zone two temperature is 285℃, zone three temperature is 290℃, zone four temperature is 290℃, zone five temperature is 290℃, zone six temperature is 280℃, zone seven temperature is 275℃, zone eight temperature 275°C, nine-zone temperature 285°C, main engine speed 300 rpm, output 100 kg / h. After extrusion, the polyphenylene sulfide composite material is obtained by cooling, drying and pel...

Embodiment 2

[0052]This embodiment provides a polyphenylene sulfide composite material, which includes the following raw material components by weight percentage:

[0053]

[0054]In this embodiment, the preparation method of the polyphenylene sulfide composite material is the same as in embodiment 1.

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Abstract

The invention discloses a polyphenylene sulfide composite material, a preparation method thereof and an injection molded part. The polyphenylene sulfide composite material comprises the following rawmaterial components in percentage by weight: 40%-90% of polyphenylene sulfide resin, 0.1%-30% of thermotropic liquid crystal polyarylester, 8%-55% of carbon fibers, 1%-4% of a compatilizer, 0.05%-0.6%of a coupling agent, 0.1%-2% of a lubricant and 0.05%-1% of an antioxidant. Therefore, the polyphenylene sulfide resin with good heat resistance and mechanical properties is obtained through the synergistic effect of the components.

Description

Technical field[0001]The invention relates to the field of polymer composite materials, in particular to a polyphenylene sulfide composite material, a preparation method thereof, and an injection molded part.Background technique[0002]Polyphenylene sulfide (PPS) is a high-performance thermoplastic polymer, which is mainly used to make special engineering plastics and precision parts. It has been widely used in the electronic and electrical fields, the automotive industry, and the machinery industry. Polyphenylene sulfide has good flame retardancy, insulation and chemical resistance due to the rigid molecular chain formed by the alternate arrangement of benzene rings and sulfur atoms, but it also has disadvantages such as low ductility and poor toughness. The mechanical strength and heat resistance of unreinforced PPS cannot meet the requirements of most applications.[0003]Some research involves polyphenylene sulfide composite materials composed of polyphenylene sulfide, glass fiber, ...

Claims

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Application Information

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IPC IPC(8): C08L81/02C08L67/00C08L23/08C08K13/04C08K7/06
CPCC08L81/02C08K2201/004C08K2201/003C08L2205/03
Inventor 冉进成官炳荣官炳桂
Owner 广东华聚科技有限公司
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