Low-permeability fluororubber product material

• Main Authors: YAN GUANGFU, FANG YONG
• Format: Patent
• Language: Chinese; English
• Published: 28.05.2021
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

The invention discloses a low-permeability fluororubber product material which comprises the following raw materials in parts by weight: fluororubber, calcium silicate, magnesium oxide, calcium hydroxide, WS280, iron oxide red, modified molybdenum disulfide, nano inorganic filler, modified diatomite and modified white carbon black. Preparation of synthetic rubber comprises steps of feeding all the raw materials into an internal mixer according to the weight parts, detecting the hardness, strength and elongation of the synthetic rubber after the synthetic rubber is obtained through the internal mixer, and filtering after detection, carrying out open milling molding on the qualified synthetic rubber through an open mill at 60-70 DEG C, putting the molded rubber into a mold in vulcanization equipment, and carrying out vulcanization treatment on the rubber. The low-permeability fluororubber product material which is excellent in flowability, improved in demolding performance, relatively good in methanol and ethan