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The manufacturing method
of fluorine rubber
1. Introduction
fluorine rubber is a kind of special rubber with excellent oil resistance, high temperature resistance, chemical corrosion resistance and other characteristics, which is widely used in aviation, aerospace, automobile, petrochemical and other fields. This paper will introduce the manufacturing method of fluorine rubber in detail, including raw material preparation, mixing, vulcanization and other process steps.
2. raw material preparation
1. Fluorine rubber raw rubber: Select fluorine rubber raw rubber with high fluorine content to ensure the performance of fluorine rubber.
2. vulcanizing agent: commonly used vulcanizing agent bisphenol AF, bisphenol S and so on.
3. Accelerator: a substance that promotes the vulcanization reaction, such as dimethyl aniline.
4. filler: improve the physical properties of fluorine rubber, such as carbon black, white carbon black and so on.
5. Anti-aging agent: improve the thermal oxygen aging performance of fluorine rubber, such as phenyl benzimidazole.
3. mixing process
1. fluorine rubber raw rubber, vulcanizing agent, accelerator, filler, antioxidant and other raw materials in accordance with a certain proportion of the internal mixer.
2. Mixing at a certain temperature to make the raw materials fully mixed and uniform.
3. During the mixing process, attention should be paid to control the temperature and time to avoid overheating or over-refining of the rubber material.
4. After the mixing is completed, place the rubber compound on an open rubber mixer for thin passage to further homogenize the rubber compound.
4. vulcanization process
1. The mixed fluorine rubber compound is cut into a certain shape and size of the film.
2. Put the film into the mold and vulcanize it under a certain temperature and pressure.
3. During the vulcanization process, attention should be paid to controlling the temperature, pressure and time to ensure the vulcanization degree and physical properties of the fluorine rubber.
4. After vulcanization, take out the vulcanized fluorine rubber products and carry out post-treatment, such as burr removal and cleaning.
5. Precautions
1. In the manufacturing process, it is necessary to ensure the control accuracy of the temperature, time, pressure and other parameters of each process step to ensure the stable quality of fluorine rubber.
2. Pay attention to safety in the manufacturing process to avoid safety accidents caused by improper operation.
3. When using raw materials, ensure the quality of raw materials and avoid affecting the performance of fluorine rubber due to raw material problems.
6. summary The manufacturing method of
fluorine rubber includes raw material preparation, mixing process and vulcanization process, and the control of temperature, time, pressure and other parameters of each process step is very important to ensure the quality and stability of fluorine rubber. At the same time, pay attention to safety and environmental protection during the manufacturing process to avoid safety accidents and environmental pollution caused by improper operation. Through the manufacturing method introduced in this paper, fluorine rubber with excellent performance can be prepared, which provides important material support for the field of chemical production raw materials.