Matters needing attention in the production process of fluorosilicone rubber

Due to the high price of fluorosilicone rubber, the working environment is more extreme. Therefore, the production and operation process of fluorosilicone rubber is extremely strict.
1. Transportation and storage of fluorosilicone rubber: During the storage and transportation of fluorosilicone rubber, the fluorosilicone rubber must be wrapped with release paper and plastic bags to prevent dust and impurities from being adsorbed by contact with the rubber. Prevent contamination by other chemical reagents.
2. Cutting of fluorosilicone rubber: In the process of taking materials, cutting, and fluorosilicone rubber, the tool scissors or putty knife used should be cleaned first, and the surface of the tool should be scrubbed with alcohol, and the fluorosilicone can be cut after it is clean Rubber, try to avoid contact with hands, skin and rubber during the cutting process, but do not wear gloves to avoid contamination of fluorosilicone rubber by glove fibers or skin oils.
3. Weighing of fluorosilicone rubber: Before weighing, the tray needs to be cleaned with alcohol and wiped clean.
4. Mixing of fluorosilicone rubber: Before mixing, the rollers and baffles of the mill must be scrubbed with alcohol to ensure that there is no contamination by impurities. When mixing, attention should be paid to controlling the temperature of the rollers. When the temperature of the rollers is 18°C~32°C, the performance of the rubber mixing process is better. The temperature should not be too high.
5. Vulcanization of fluorosilicone rubber: the mold for making fluororubber products must be surface treated, chrome-plated, and an external release agent is required if necessary.
6. Vulcanization of fluorosilicone rubber: After the first stage of vulcanization of fluorosilicone rubber, there are a large number of low molecular weight volatiles. Long-term use will affect the performance of fluorosilicone rubber. Therefore, general fluorosilicone rubber products must be vulcanized in two stages: two stage vulcanization of fluorosilicone rubber It is carried out in an electric blower box, and the temperature is gradually raised. After reaching the required temperature, the temperature is kept constant. For general molded products: 200℃×1～4h.
7. Retraining of fluorosilicone rubber: Fluorosilicone rubber that has been parked for a long time is easy to structure and affect performance. Therefore, for the use of rubber materials that have been parked for a long time, retraining is required. Put it in the mixer for 22 times, and the mixing time is about 6 minutes to ensure that the materials are mixed evenly. If the surface is relatively sticky to the roller, a rear scraper needs to be installed.
8. Fluorosilicone rubber production environment: Since fluorosilicone rubber has the characteristics of electrostatic dust absorption, the production environment needs to be purified and dust-free workshops, and the production tools are special equipment. Workers must wear clean clothes and hats when entering and exiting.