Modified polytrifluorochloroethylene and molding process thereof

A polychlorotrifluoroethylene and modification technology, which is applied in the field of plastic thermal processing, can solve the problems of poor fluidity, difficult compression molding process, and high viscosity of polychlorotrifluoroethylene resin, and achieves cost reduction, excellent corrosion resistance, Excellent mechanical properties

Active Publication Date: 2015-10-21
WENZHOU OUKE FLUORINE GASKETS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Polytrifluoroethylene resin has high viscosity and poor fluidity at high temperature, so its compression molding process is difficult

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The invention provides a modified polychlorotrifluoroethylene, which is made of polychlorotrifluoroethylene and a modifier, the modifier is graphite and carbon fiber, and the weight percentages of the components of the modified polychlorotrifluoroethylene are respectively Polytrifluorochloroethylene accounts for 88%; graphite accounts for 2%; carbon fiber accounts for 10%.

[0030] Choose short filamentary carbon fiber, its appearance is black powder, and its specific gravity is 1.7 grams per square centimeter. Carbon fiber (CF for short) is a new type of fiber material with high strength and high modulus fibers with a carbon content of more than 95%. It is a microcrystalline graphite material obtained by stacking organic fibers such as flake graphite microcrystals along the axial direction of the fiber, and undergoing carbonization and graphitization. Carbon fiber is "soft on the outside and rigid on the inside", lighter than metal aluminum, but stronger than steel, a...

Embodiment 2

[0044] The manufacturing process and method are the same as in Example 1, the graphite is changed to p-polyphenyl, the carbon fiber is changed to glass fiber, and the weight percentages of each component are respectively 70% for polychlorotrifluoroethylene; 20% for p-polyphenyl; and 20% for carbon fiber. 10%, polytrifluorochloroethylene, p-polyphenylene and carbon fiber were dried separately, and the drying temperature was 100°C; the density of the finished product was 1.9g / cm 3 .

Embodiment 3

[0046] The manufacturing process and method are the same as in Example 1, the graphite is changed into ceramic powder, the carbon fiber is changed into aluminum powder, and the weight percentages of each component are respectively polychlorotrifluoroethylene accounting for 80%; ceramic powder accounting for 10%; aluminum powder accounting for 10%; Dry polychlorotrifluoroethylene, ceramic powder and aluminum powder separately at a drying temperature of 100°C; the density of the finished product is 2.5g / cm 3 .

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Abstract

The invention relates to a modified polytrifluorochloroethylene and a molding process thereof. The modified polytrifluorochloroethylene is prepared from polytrifluorochloroethylene and a modifier, wherein the modifier is a mixture of more than one, in an arbitrary ratio, selected from the group consisting of p-polyphenylene, graphite, carbon fiber, glass fiber, ceramic powder, polybenzoate, pigment, molybdenum disulfide and aluminum powder. The molding process for the modified polytrifluorochloroethylene is to subject polytrifluorochloroethylene and the modifier to drying, mixing, molding and cooling. The invention has the following beneficial effects: after addition of the modifier, the prepared modified polytrifluorochloroethylene has improved hardness, dimensional stability, high temperature resistance, wear resistance, thermal conductivity and creep resistance and altered friction coefficient; meanwhile, cost of polytrifluorochloroethylene is reduced, and the application scope of the modified polytrifluorochloroethylene is widened.

Description

technical field [0001] The invention belongs to the technical field of plastic thermal processing, and in particular relates to a modified polychlorotrifluoroethylene and a molding process thereof. Background technique [0002] Polytrifluorochloroethylene has the lowest water and vapor permeability, does not permeate any gas, does not support combustion, is a good barrier polymer, has good chemical inertness, chemical corrosion resistance, high and low temperature resistance, high Mechanical strength and toughness, excellent dielectric properties and optical properties, etc., mainly used in electronics, electrical, low-temperature resistant devices, medical, chemical and other fields. The specific application parts are corrosion-resistant electronic and electrical insulation components, and the operating temperature is -196 to + 125°C. Although polychlorotrifluoroethylene has excellent performance, it still has deficiencies when applied to some mechanical fields of today's ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/12C08L65/00C08K13/04C08K7/06C08K7/14C08K3/04C08K3/30C08K3/00C08K3/08B29C43/58
CPCB29C43/58C08K3/00C08K3/04C08K3/08C08K7/06C08K2003/0812C08L27/12C08L2201/08C08L65/00C08K7/14C08L67/00C08K2003/3009
Inventor 孙文超
Owner WENZHOU OUKE FLUORINE GASKETS CO LTD
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