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The method of prolonging the storage time of fluorine rubber glue

A storage time, fluororubber technology, applied in the field of fluororubber preparation, can solve problems such as easy gelation of fluororubber glue, and achieve the effect of solving extremely easy gelation and reasonable design

Active Publication Date: 2016-01-20
SHANXI XINHUA CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem that the traditional method cannot solve the problem that the fluororubber glue is very easy to gel, the present invention provides a method for prolonging the storage time of the fluororubber glue

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A method for prolonging the storage time of fluororubber glue, comprising the steps of:

[0020] (1) Press the mixed fluorine rubber material into a small rubber block with a thickness of 3mm and a size of 400×400mm and put it into the mixing tank;

[0021] (2) Add ethyl acetate, the total amount is: fluorine rubber compound: ethyl acetate = 1:3, ethyl acetate is first added to 60% of the total amount, and stirred for 40 minutes;

[0022] (3) Add the remaining ethyl acetate and stir for 4 hours;

[0023] (4) Add methanol and continue to stir for 10 minutes. The amount of methanol added is: fluorine rubber compound: methanol = 1:2.

Embodiment 2

[0025] A method for prolonging the storage time of fluororubber glue, comprising the steps of:

[0026] (1) Press the mixed fluorine rubber material into a small rubber block with a thickness of 2mm and a size of 300×400mm and put it into the mixing tank;

[0027] (2) Add ethyl acetate, the total amount is: fluorine rubber compound: ethyl acetate = 1:4, ethyl acetate is first added to 60% of the total amount, and stirred for 40 minutes;

[0028] (3) Add the remaining ethyl acetate and stir for 7 hours;

[0029] (4) Add methanol and continue to stir for 8 minutes. The amount of methanol added is: fluorine rubber compound: methanol = 1:1.

Embodiment 3

[0031] A method for prolonging the storage time of fluororubber glue, comprising the steps of:

[0032] (1) Press the mixed fluorine rubber material into a small rubber block with a thickness of 2mm and a size of 200×200mm and put it into the mixing tank;

[0033] (2) Add ethyl acetate, the total amount is: fluorine rubber compound: ethyl acetate = 1:5, ethyl acetate is first added to 60% of the total amount, and stirred for 40 minutes;

[0034] (3) Add the remaining ethyl acetate and stir for 5 hours;

[0035] (4) Add methanol and continue to stir for 6 minutes. The amount of methanol added is: fluorine rubber compound: methanol = 1:1.5.

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PUM

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Abstract

The present invention relates to the preparation of fluororubber, specifically a method for prolonging the storage time of fluororubber glue, comprising the following steps: (1) pressing the mixed fluororubber glue into a thickness of 2-3 mm, not greater than 400 Put the small rubber blocks of ×400mm into the mixing tank; (2), add ethyl acetate, the total amount is: fluororubber compound rubber: ethyl acetate = 1:3~5, ethyl acetate is added first and the total amount is added (3) Add the remaining ethyl acetate, and the stirring time shall not be less than 4 hours; (4), Add methanol, and continue stirring for 6-10 minutes. The amount of methanol added is: fluororubber mixed Rubber mixing:methanol=1:1~2. The invention has a reasonable design and fundamentally solves the problem that the fluorine rubber glue is very easy to gel.

Description

technical field [0001] The invention relates to the preparation of fluororubber, in particular to a method for prolonging the storage time of fluororubber glue. Background technique [0002] Fluorine rubber cloth has excellent corrosion resistance, and its stability to organic solvents, concentrated acids, high-concentration hydrogen peroxide and other oxidants is superior to other rubbers, especially under high temperature conditions, which other rubber materials cannot achieve. Protective performance is increasingly widely used in military and civilian markets. [0003] At present, the fluororubber tape produced by the coating process usually needs to mix the kneaded fluororubber and ethyl acetate in a certain proportion. The steps are: 1. Press the mixed fluororubber rubber into a small rubber block with a thickness of 2-3mm and no more than 400×400mm and put it into the mixing tank; 2. The ratio of fluororubber compounded rubber to ethyl acetate 1:5~8; add 40% of the t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J3/11C08L27/12
Inventor 常慧芳杨建功张重杰齐嘉豪孟艳光
Owner SHANXI XINHUA CHEM
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