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A kind of -60 ℃ resistant fluorine rubber compound and its preparation method

A technology of fluororubber and rubber compound, applied in the field of -60℃-resistant fluororubber compound and its preparation, can solve the problems of high brittleness temperature, poor molecular flexibility, high crystallinity, and achieve improved mechanical properties, aging resistance and chemical stability The effect of improved properties, modulus and hardness

Active Publication Date: 2017-08-01
厦门市金汤橡塑有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Fluorine rubber is an oil-resistant rubber with excellent heat resistance, but because of its high crystallinity, poor molecular flexibility, and high brittle temperature, the general brittle temperature of fluorine rubber is around -25°C. Due to the development of the aerospace industry, it is necessary to be able to Fluorine rubber compound that meets -60°C
At present, the low temperature requirement of -60 ℃ cannot be reached in the existing technology

Method used

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  • A kind of -60 ℃ resistant fluorine rubber compound and its preparation method
  • A kind of -60 ℃ resistant fluorine rubber compound and its preparation method
  • A kind of -60 ℃ resistant fluorine rubber compound and its preparation method

Examples

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Effect test

Embodiment 1

[0034] Example 1: Preparation of -60°C resistant fluororubber compound

[0035] Raw materials: see Table 1.

[0036] Raw material list (parts by weight) used in each embodiment of table 1

[0037]

[0038] Preparation:

[0039] Raw rubber F2463 is thin-pass pressed, the roller distance is 6-2mm, and the pressing time is 8-10min;

[0040] Add magnesium oxide and calcium hydroxide, the roller distance is 2-3mm, and the pressing time is 2-3min;

[0041] Add spray carbon black, KTC Qiangwei powder, AOPO polyolefin, roll distance 4-6mm, pressing time 13-15min;

[0042] Add bisphenol AF and benzyl triphenylphosphorous chloride, the roller distance is 4-6mm, and the pressing time is 2-3min;

[0043] Thin pass three times, the roller distance is 1~2mm, and the pressing time is 3~4min;

[0044] After making six triangle bags, the lower piece, the roller distance is 4-6mm, and the pressing time is 3-4min.

Embodiment 2

[0045] Example 2: Preparation of -60°C-resistant fluororubber compound

[0046] Raw materials: see Table 1.

[0047] Preparation method: with embodiment 1.

Embodiment 3

[0048] Example 3: Preparation of -60°C-resistant fluororubber compound

[0049] Raw materials: see Table 1.

[0050] Preparation method: with embodiment 1.

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Abstract

The invention discloses a fluorine rubber sizing material resisting -60 DEG C and a preparation method thereof. The fluorine rubber sizing material resisting the -60 DEG C is prepared by the following raw materials in parts by weight: 100 parts of F2463; 3 to 5 parts of magnesium oxide; 5 to 6 parts of calcium hydroxide; 4 to 5 parts of spraying carbon black; 8 to 10 parts of KTC strong powder; 2 to 2.2 parts of bi-phenol AF; 0.5 to 0.6 part of benzyl triphenyl phosphorus chloride; and 2 to 2.5 parts of APAO polyolefin. The invention also provides a preparation method. The prepared fluorine rubber sizing material can resist the low temperature of -60 DEG C and can meet the requirement of the low-temperature-resistant fluorine rubber in the spaceflight industry in China; and meanwhile, the preparation method is simple.

Description

technical field [0001] The invention relates to the field of rubber, in particular to a -60°C resistant fluorine rubber compound and a preparation method thereof. Background technique [0002] Fluorine rubber is an oil-resistant rubber with excellent heat resistance, but because of its high crystallinity, poor molecular flexibility, and high brittle temperature, the general brittle temperature of fluorine rubber is around -25°C. Due to the development of the aerospace industry, it is necessary to be able to Fluorine rubber compound that meets -60°C. At present, the low temperature requirement of -60° C. cannot be achieved in the prior art. Contents of the invention [0003] The purpose of the present invention is to provide a kind of fluorine rubber compound which has a simple preparation method and can withstand -60°C. [0004] In order to achieve the above object, the present invention provides a -60°C resistant fluororubber compound, which is characterized in that it ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L27/16C08L23/00C08K13/02C08K3/22C08K3/04C08K5/136C08K5/50B29B7/56B29B7/72
Inventor 何青松陈秀蓉王永昌
Owner 厦门市金汤橡塑有限公司