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High temperature-resistant high-strength polyphenylene sulfide-based reactively reinforced and toughened composite material

A polyphenylene sulfide-based, reinforced and toughened technology, which is applied in the field of high-temperature-resistant, high-strength polyphenylene sulfide-based reactive reinforced and toughened composite materials, can solve the problem of decreased rigidity and heat resistance, and poor bonding between rubber and the substrate , the toughening effect is not obvious, etc., to achieve the effects of improved toughness, easy molding, and good dimensional stability

Inactive Publication Date: 2013-02-27
上海真晨企业发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the traditional rubber elastomer is used for modification, due to poor dispersion and poor bonding between the rubber and the matrix, the toughening effect is not obvious, which often leads to a decrease in rigidity and heat resistance

Method used

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  • High temperature-resistant high-strength polyphenylene sulfide-based reactively reinforced and toughened composite material
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  • High temperature-resistant high-strength polyphenylene sulfide-based reactively reinforced and toughened composite material

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Experimental program
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Embodiment 1～6

[0040] Heat treatment of polyphenylene sulfide in an oven at 220 to 240 ° C for 4 to 10 hours, and it is advisable to test its melt index to reach 300 to 500 g / 10min. After weighing the pretreated polyphenylene sulfide in proportion, add it to a high-speed mixer, then add a coupling agent and a nucleating agent, and stir evenly. The stirring speed is about 1440 rpm, and the stirring time is 1 minute. Add compatibilizer, polyolefin, high-performance engineering plastics and auxiliaries into the machine and stir evenly at a stirring speed of about 720 rpm for 3 minutes to obtain a premix.

[0041] The set process conditions of the twin stud extruder are as follows:

[0042] The temperature control of the screw and the head of the 1~9 zone is: 260~290℃;

[0043] Screw speed: 400 ~ 500 rpm;

[0044] Vacuum degree: -0.09~-0.06MPa.

[0045] The above-mentioned premix is ​​added to the main feeding hopper of the twin-screw extruder, and the glass fiber is added from the side feedi...

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Abstract

The invention discloses a high temperature-resistant high-strength polyphenylene sulfide-based reactively reinforced and toughened composite material and a preparation method thereof. The high temperature-resistant high-strength polyphenylene sulfide-based reactively reinforced and toughened composite material comprises: by weight, 30 to 55% of polyphenylene sulfide, 30 to 60% of glass fibers, 0 to 10% of one or more compatibilizers, 0 to 10% of one or more polyolefins, 0 to 20% of one or more high-performance engineering plastics, 1 to 2% of one or more nucleating agents and 0.5 to 1% of auxiliary agents. The preparation method is characterized in that through an interface reaction, phase morphology control is realized and through nucleation induction, a crystallization rate is improved so that good interface compatibility and structure reinforcement are realized. The high temperature-resistant high-strength polyphenylene sulfide-based reactively reinforced and toughened composite material has the advantages of low density, high strength, good toughness, high temperature resistance and good formability and is suitable for fields of automobile parts, household appliances and chemical engineering having high temperature resistance, corrosion resistance, torsion and compression resistance, low creep deformation and low cost requirements.

Description

technical field [0001] The invention relates to a preparation method of a high-temperature-resistant and high-strength polyphenylene sulfide-based glass fiber reinforced reactive toughening composite material. Background technique [0002] Polyphenylene sulfide (Polyphenylene Sulfide) is a high-performance thermoplastic engineering plastic that was first industrialized by Phillips Petroleum in the United States in 1971 and has been rapidly developed. Its chemical structure is [0003] [0004] Polyphenylene sulfide is a white powdery semi-crystalline polymer with excellent flame retardancy, chemical resistance and good mechanical and electrical properties. It can be processed and formed by various methods, and is also suitable for precision forming. It has a wide range of application prospects in the fields of electrical, chemical, instrumentation and aerospace industry. [0005] However, due to the existence of a large number of benzene rings on the main chain of polyp...

Claims

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Application Information

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IPC IPC(8): C08L81/02C08L63/02C08L81/06C08L71/12C08L51/06C08K13/06C08K9/06C08K7/14C08K3/34C08K3/30
Inventor 王港陈晓媛杨建军王强
Owner 上海真晨企业发展有限公司
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