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Fluororubber microcellular foam material and preparation method thereof

A microcellular foaming material and fluororubber technology, which is applied in the field of fluororubber microcellular foaming material and its preparation, can solve the problems such as no literature reports on fluororubber foaming formula and process, and less research and development of fluororubber foaming products, etc. Achieve the effect of good oil resistance and excellent heat resistance

Inactive Publication Date: 2017-09-26
QINGDAO UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, there are many fluororubber products in industrial production, but there are few researches on fluororubber foam products. At present, only one Japanese company has launched its fluororubber foam products, and there is no similar product in China. At present There is no literature report on the formula and process of mature fluorine rubber foaming

Method used

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  • Fluororubber microcellular foam material and preparation method thereof
  • Fluororubber microcellular foam material and preparation method thereof
  • Fluororubber microcellular foam material and preparation method thereof

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Embodiment Construction

[0031] The present invention will be further described below in conjunction with embodiment:

[0032] 1) Compound rubber preparation

[0033] (1) The temperature of the internal mixer is set to 60-90°C, and the rotational speed is 40-60rpm. First, put the fluororubber into the internal mixer, masticate for 60s, lift the weight, add processing aids and acid absorbers, and mix for 90s , lift the weight, put in fillers and modifiers, continue mixing for 90s, then remove the glue and release the film to obtain the fluororubber masterbatch;

[0034] (2) Raise the temperature of the rollers of the mill to 40-50°C, adjust the roller distance to 2 mm, put the masterbatch into the mill, knead for 3-4 minutes, then add vulcanizing agent and accelerator, and thin pass 3-4 times , make a triangular bag 3 times, and turn it around at 90°, and finally adjust the roller distance to about 8-10mm to place the film, cool to room temperature, and put it for 24 hours for use.

[0035] 2) Pre-vu...

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Abstract

The invention provides a fluororubber microcellular foam material and a preparation method thereof; the fluororubber microcellular foam material comprises, according to its formulation, 100 parts of fluororubber, 0-100 parts of a filling material, 5-20 parts of an acid absorbent, 1-2 parts of a processing aid, 0-3 parts of a modifier, 1-3 parts of a vulcanizing agent, and 0-5 parts of an accelerant. The preparation method is provided according to the above formulation; foam materials having different properties are prepared through the microcellular foaming process and are nontoxic and environmentally friendly. The fluororubber microcellular foam material is mainly applied to rubber pipes, adhesive tapes, diaphragms, seals and others having good resistance to high temperature, oil and media; the fluororubber microcellular foam material is applicable to electronic parts, electrical parts, various packaging materials, heat-resistance gasket materials and the like.

Description

technical field [0001] The invention belongs to the field of polymer materials, and in particular relates to a fluorine rubber microporous foam material and a preparation method thereof. Background technique [0002] Fluorine rubber is a synthetic rubber containing fluorine atoms in its molecular structure, referred to as FR. There are many varieties of fluorine rubber, which are usually expressed by the number of fluorine atoms in the fluorine-containing unit in the copolymer. It has a high degree of chemical stability and is currently the best medium resistance among all elastomers; the high temperature resistance of fluororubber is the same as that of silicone rubber, which can be said to be the best among elastomers at present. Fluorine rubber has excellent weather resistance and ozone resistance. It has no obvious cracks after 45 days in the air with an ozone concentration of 0.01%. It has excellent vacuum performance, excellent physical and mechanical properties, and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/12C08L27/18C08L29/10C08L91/06C08K13/02C08K3/22C08K3/04C08K3/36C08K5/098C08J9/12C08J9/14B29C69/00
CPCC08J9/122C08J9/141C08K3/04C08K3/22C08K3/36C08K5/098C08K13/02C08L27/12B29C69/00C08J2329/10C08J2327/18C08J2327/12C08J2203/14C08J2203/06C08K2003/2206C08K2003/222C08K2003/2296C08L2203/14C08L2201/08B29K2105/041C08L91/06C08L27/18C08L29/10
Inventor 张振秀张昕姜秀波
Owner QINGDAO UNIV OF SCI & TECH
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