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Fluorocarbon rubber with easy demoulding and tear resistance and preparation method thereof

A compound rubber and tear-resistant technology, which is applied in the field of easy-release and tear-resistant fluorine rubber compound and its preparation, can solve the problems of poor tear resistance and easy sticking of fluorine rubber to the mold, so as to reduce tearing and improve Good mold release and mold release performance

Inactive Publication Date: 2010-04-28
QINGDAO TKS SEALING IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The first technical problem to be solved by the present invention is to provide an easy-release and tear-resistant fluorine rubber compound to overcome the disadvantages of fluorine rubber, such as easy sticking to the mold and poor tearability.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] An easy-release and tear-resistant fluorine rubber compound, comprising the following raw materials in parts by weight:

[0034] 100 parts of fluorine rubber raw rubber; 4 parts of high-activity magnesium oxide; 2 parts of calcium hydroxide;

[0035] 1.5 parts of iron red; 0.4 parts of rubber additive WS280;

[0036] 1.2 parts of bisphenol AF; 0.4 parts of benzyl triphenyl phosphorus chloride;

[0037] 25 parts of calcium silicate.

[0038] Among the above components, "Rhine-54" refers to the rubber additive produced by Germany Rheinland Chemical Co., Ltd., and the trade name is "Rhine-54".

[0039] The preparation method of the above-mentioned a kind of easy demoulding anti-tearing fluorine rubber compound comprises the following steps:

[0040] 1) Add 50 parts of fluororubber raw rubber to the kneader for mastication;

[0041] 2) When the temperature of the kneader reaches 58°C, add 4 parts of high-activity magnesium oxide, 2 parts of calcium hydroxide, 25 parts o...

Embodiment 2

[0046] An easy-release and tear-resistant fluorine rubber compound, comprising the following raw materials in parts by weight:

[0047] 100 parts of fluorine rubber raw rubber; 6 parts of high-activity magnesium oxide; 4 parts of calcium hydroxide;

[0048] 6 parts of iron red; 1.0 parts of rubber additive WS280;

[0049] 1.0 parts of rubber additive Rhine-54, 1.0 parts of carnauba wax;

[0050] 2.4 parts of bisphenol AF; 1.0 parts of benzyl triphenyl phosphorus chloride;

[0051] 25 parts of barium sulfate.

[0052] Among the above components, "Rhein-54 rubber additive" refers to the rubber additive produced by Germany Rhein Chemie Co., Ltd., and the trade name is "Rhein-54".

[0053] The preparation method of the above-mentioned a kind of easy demoulding anti-tearing fluorine rubber compound comprises the following steps:

[0054] 1) Add 50 parts of fluororubber raw rubber to the kneader for mastication;

[0055] 2) When the temperature of the kneader reaches 62°C, add ...

Embodiment 3

[0060] An easy-release and tear-resistant fluorine rubber compound, comprising the following raw materials in parts by weight:

[0061] 100 parts of fluorine rubber raw rubber; 5 parts of high-activity magnesium oxide; 3 parts of calcium hydroxide;

[0062] 4 parts of iron red; 0.7 parts of rubber additive WS280;

[0063] 0.5 part of rubber additive Rhine-54, 0.5 part of carnauba wax;

[0064] 2 parts of bisphenol AF; 0.7 parts of benzyl triphenyl phosphorus chloride;

[0065] 20 parts of barium sulfate.

[0066] Among the above components, "Rhein-54 rubber additive" refers to the rubber additive produced by Germany Rhein Chemie Co., Ltd., and the trade name is "Rhein-54".

[0067] The preparation method of the above-mentioned a kind of easy demoulding anti-tearing fluorine rubber compound comprises the following steps:

[0068] 1) Add 50 parts of fluororubber raw rubber to the kneader for mastication;

[0069] 2) When the temperature of the kneader reaches 60°C, add 5 pa...

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Abstract

The invention provides a fluorocarbon rubber with easy demoulding and tear resistance and banburying method thereof, comprising the following components: 100 parts of crude fluororubber; 4-6 parts of high activity magnesium oxide; 2-4 parts of calcium hydroxide; 1.5-6 parts of iron oxide red; 0.4-1.0 part of rubber ingredient WS280; 0-1.0 part of rhine 54; 0-1.0 part of brazil carnauba wax; 1.2-2.4 parts of bisphenol AF; 0.4-1.0 part of benzyltriphenylphosphonium chloride; and appropriate calcium silicate or barium sulphate added according to hard requirement. The invention also provides two banuring methods of fluorocarbon rubber with easy demoudling and tear resistance. The product of the invention has good demoulding performance, and the produced trimming after vulcanization can be taken down along with the product, thus reducing clearing time of operators and avoiding waste production caused by reduction of mould temperature. By the improvement of banburying method of fluorocarbon rubber, dispersion performance of fluorocarbon rubber can be improved, thus improving demoulding performance thereof in vulcanization and reducing tear of product, so that scrap rate of product in one specification caused by tear is reduced to 0.15% from 0.36% (reduced by near 60%).

Description

technical field [0001] The invention relates to a rubber and a preparation method thereof, in particular to an easy-release and tear-resistant fluorine rubber compound and a preparation method thereof. Background technique [0002] Existing fluorine rubber compounds generally have disadvantages such as easy sticking to the mold and poor tearability during vulcanization. Even after the mold is chrome-plated, the rubber flash produced after vulcanization will stick to the mold, which is particularly difficult to clean. affect the appearance of the product. Contents of the invention [0003] The first technical problem to be solved by the present invention is to provide an easy-release and tear-resistant fluorine rubber compound to overcome the disadvantages of fluorine rubber, such as easy sticking to molds and poor tearability. [0004] The second technical problem to be solved by the present invention is to provide a preparation method of easy-release and tear-resistant f...

Claims

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Application Information

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IPC IPC(8): C08L27/12C08K13/02C08K3/22C08K3/08C08K3/34C08K5/50C08K5/136C08K3/30B29B7/28
Inventor 曹建莉刘森林
Owner QINGDAO TKS SEALING IND
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