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Technology for preparing polyphenyl sulfide composite film

A technology for preparing polyphenylene sulfide, which is applied in the direction of flat products, household appliances, and other household appliances, can solve the problems of unfavorable production cost control, multiple high-grade additives, and low inorganic filler content, and achieve stable surface properties and Uniformity, no reduction in insulation performance, and improved heat resistance

Inactive Publication Date: 2010-08-11
四川华通特种工程塑料研究中心有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The above inventions propose a specific modification method for improving the heat resistance, dimensional stability and mechanical properties of thermoplastic resins and various performance indicators of polyphenylene sulfide in a specific field, but the requirements for comprehensive performance of materials are relatively high. In terms of the base film of magnetic recording media, capacitors and other electronic components and equipment insulation films, there are still deficiencies; in addition, the relatively low content of inorganic fillers and too many advanced additives are not conducive to the control of production costs

Method used

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  • Technology for preparing polyphenyl sulfide composite film
  • Technology for preparing polyphenyl sulfide composite film
  • Technology for preparing polyphenyl sulfide composite film

Examples

Experimental program
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Effect test

Embodiment 1

[0022] The process route for preparing masterbatch is as follows: figure 1 shown.

[0023] 1) Inorganic filler coupling treatment, the weight ratio of calcium carbonate whiskers: zinc oxide: potassium hexatitanate whiskers is 1:1:2, and the uniformly mixed mixed fillers are soaked in the silane coupling agent KH-550 alcohol solution The obtained material is treated in a blast oven at 40°C for 3 hours, and dried at 80°C for use, which is called mixed filler 1; the proportioning amount of the material for soaking treatment is 100 parts by weight of mixed inorganic filler, 3 parts by weight of silane coupling agent, 150 parts by weight of absolute ethanol. After fully infiltrating for 15 minutes, ultrasonically disperse for 1.5 hours.

[0024] 2) Preparation of masterbatch: 70 parts by weight of the coupling-treated mixed inorganic filler obtained in 1) and 30 parts by weight of polyphenylene sulfide were blended at high speed, and then extruded by twin-screws to prepare a mast...

Embodiment 2

[0028] The weight ratio of calcium carbonate whiskers: zinc oxide: potassium hexatitanate whiskers is 1:2:3, and the others are the same as in Example 1.

Embodiment 3

[0030] The weight ratio of calcium carbonate whiskers: zinc oxide: potassium hexatitanate whiskers is 1:2:4, and the others are the same as in Example 1.

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Abstract

The invention discloses a technology for preparing a polyphenyl sulfide composite film. The technology is realized in such a way that: polyphenyl sulfide resin is used as a main body, and coupled mixed inorganic filler is added; and the coupled mixed inorganic filler and polyphenyl sulfide are blended and extruded by a twin screw extruder to prepare a master batch, the master batch is added to the polyphenyl sulfide, which is granulated once, to be fused, blended and extruded, and a biaxially oriented film is prepared. The film has favorable combination properties: the melting point is higher than that of polyphenyl sulfide, the heat distortion temperature is above 163 DEG C, the variation in thickness is not higher than 4%, the surface roughness is smaller than or equal to 0.20 mum, and the thermal shrinkage percentage is smaller than or equal to 1% at 250 DEG C. The invention has the advantages of relatively lower production cost, and is especially suitable for being used as a basal membrane for magnetic recording media, and an insulating material for capacitors and other electronic components and equipment.

Description

technical field [0001] The invention belongs to the field of polymer composite material, especially the film material used as the base film of magnetic recording medium, capacitor and other electronic components and equipment insulation. Background technique [0002] Polyphenylene sulfide is high temperature resistant, corrosion resistant, radiation resistant, flame retardant, excellent in electrical properties, has balanced physical and mechanical properties and excellent dimensional stability, and its film can be used as the base film of magnetic recording media, capacitors and other Insulating materials for electronic components and equipment. At present, the tensile strength and elongation at break of polyphenylene sulfide produced by casting method cannot meet the high requirements of the development of the times, while the biaxially stretched film without heat treatment or pure film has high temperature dimensional stability. And resistance to electric welding tempera...

Claims

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Application Information

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IPC IPC(8): B29C69/02B29C47/92B29C55/14B29C71/02B29K81/00B29L7/00B29C48/40B29C48/92
CPCB29C48/92B29C2948/92704B29C48/04B29C48/08B29C48/40B29C2948/92895
Inventor 戴厚益代晓徽李勇高勇闵敏张勇牛海霞
Owner 四川华通特种工程塑料研究中心有限公司
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