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Fluoride rubber and plastic sealing material and preparation method thereof

A sealing material and fluororubber technology, applied in the field of special rubber and its preparation, can solve the problems of great influence on stability and high cost of fluororubber, and achieve the effects of stable properties, easy operation and retention of original characteristics

Active Publication Date: 2010-09-22
河北鑫科新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the cost of fluorine rubber is high, and the production process has a great influence on the stability of product performance

Method used

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  • Fluoride rubber and plastic sealing material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] a. Weigh 40kg of fluorine rubber; 1kg of calcium silicate; 15kg of carbon black; 5kg of magnesium oxide; 0.5kg of triethylenediamine, and 5kg of calcined clay.

[0019] b. Put the fluororubber in the internal mixer, under the condition of 150 ℃, masticate for 4 minutes; add carbon black, 1 / 3 of the amount of magnesium oxide, 1 / 3 of the amount, masticate for 8 minutes; then add the rest Magnesium oxide and calcium silicate, masticated for 6 minutes, shut down, turned over and discharged, and cooled to below 65°C for use;

[0020] c. Put the above-mentioned materials in an open mill, and add triethylenediamine under the condition of ≤65°C. After eating the materials, pass them thinly for 4 times, put on triangular bags for 5 times, and remove the slices.

Embodiment 2～6

[0021] Embodiment 2~6 (see table 1)

[0022] Preparation method Example 1 is basically the same. Just formula consumption and process condition are different, but all within the scope described in the method of the present invention.

[0023] Table 1

[0024]

[0025] The beneficial effects of the present invention have been verified by the following test data (see Table 2 for details).

[0026] Vulcanization condition 175℃×4min Second stage 160℃×4h

[0027] Table 2

[0028] project

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Abstract

The invention discloses a fluoride rubber and plastic sealing material with good performance and low cost, and a preparation method of the rubber. The sealing material comprises the following raw materials in part by weight: 40-80 parts of fluorous rubber, 5-20 parts of calcium silicate, 5-20 parts of carbon black, 5-20 parts of magnesium oxide and 0.5-2 parts of cross-linking agent. The method comprises the steps of arranging the fluorous rubber in an internal mixer at the temperature of 150-160 DEG C with the plasticating time of 4min-10min, adding the carbon black, 1 / 3 of the magnesium oxide and 1 / 3 of the calcium silicate with the plasticating time of 6min-8min, then adding the rest magnesium oxide and calcium silicate, plasticating, stopping, overturning the warehouse to output the materials for spare use, arranging the materials in an open mill, adding the cross-linking agent at the temperature less than or equal to 65 DEG C, thinly introducing four times after material feed, packing with a triangular bag five times, and feeding plates.

Description

technical field [0001] The invention relates to a special rubber and a preparation method thereof, in particular to a rubber and plastic sealing material especially suitable for making automobile seals and a preparation method thereof. Background technique [0002] With the advancement of technology, high-tech, high-performance equipment (such as turbocharged engine systems, turbo loaders, automatic transmissions, electronic fuel injection devices, exhaust gas purification devices, new lubricants, etc.) have been widely used in the automotive industry . The application of new technology makes the weight specification of the car smaller and smaller, the space of the engine room is more and more narrow, and the temperature is higher and higher. The application of new engine oil makes the additives in lubricating oil more and more, especially the corrosive additives, and the chemical environment becomes more and more complicated. At the same time, the reverse rotation of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/12C08K13/02C08K3/34C08K3/04C08K3/22C08K5/17C09K3/10
Inventor 仝国磊
Owner 河北鑫科新材料科技有限公司
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