The performance and usage of fluoride ceramic tile seam filling agent

Properties and USES a fluoride ceramic tile gap filling agent, fluorine ceramic tile gap filling agent introduction: ceramic tile seam filling agent containing fluorine atoms in molecules, the C - fluorine atoms and carbon atoms F performance is high, the adsorption effect of fluorine atoms have great at the same time, make the molecular chain of the fluorine carbon C - C key performance enhancements, and enhanced with the increase of the degree of fluoride, fluoride atoms can get C - C a primary key can be better to block and the C - C key chemical inertia. The special molecular structure, make the fluoride ceramic tile gap filling agent has excellent heat resistance, drug resistance, solvent resistance, resistance to fluoride, vacuum resistance, oil resistance, ageing resistance and so on a variety of specific performance. Fluoride ceramic tile gap filling agent, main types of 26, 246, 23; 4 c fluoride ceramic tile gap filling agent, fluorine ceramic tile gap filling agent, hydroxyl heartland of nitro fluoride, fluoride phosphate ceramic tile gap filling agent, perfluorinated ether nitrile ceramic tile seam filling agent ceramic tile gap filling agent. Second, fluorine ceramic tile is the main performance of gap filling agent 1, chemical stability, fluoride ceramic tile gap filling agent with high chemical stability, is at present medium resistance of all the elastomer is one of the best. 26 type fluorine petroleum base oil resistant ceramic tile gap filling agent, double ester oil, silicon ether silicone oil, inorganic acid resistance, resistance to most organic solvents, but not resistant to low molecular, ether, ester, ketone amine and ammonia, hydrofluoric acid, chlorosulfonic acid, phosphoric acid type of hydraulic oil. 23 classes is more unique, its strong oxidation resistance of the inorganic acid such as fuming nitric acid, sulfuric acid performance is better than 26 type. 2, high temperature resistant performance is excellent high temperature resistant performance and fluoride ceramic tile seam filling agent ceramic tile gap filling agent, can be said to be the best in the elastomer. 246 > > 26 233, ageing resistance performance is good, has the very good weather aging resistance, ozone resistance. 4, good vacuum performance has the very good vacuum performance. 5, excellent mechanical properties have excellent physical and mechanical properties. At high temperature compression permanent deformation is large, but if compared with the same conditions, nitrile synthetic ceramic tile ceramic tile gap filling agent and caulking gun are older than 26 type ceramic tile seam filling agent. 6, good electrical 23 type fluorine ceramic tile gap filling agent's performance is good, hygroscopicity is lower than other projectile, can be used as good electrical insulating materials. Fluoride ceramic tile seam filling agent suitable for low frequency only commonly used under low pressure, the temperature had a great influence on its performance, rose from 24 ℃ to 184 ℃, 35000 times its insulation resistance decreased. 7, small gas fluoride ceramic tile gap filling agents on the solubility of a gas is big, but the diffusion velocity is smaller, so the overall performance of permeability is also small. According to the report, 26 type fluorine ceramic tile seam filling agent under 30 ℃ for oxygen, nitrogen, carbon dioxide permeability and butyl ceramic tile gap filling agent, synthetic, natural ceramic tile ceramic tile gap filling agent than the gap filling agent. 8 tile gap filling agent, low temperature performance is bad fluorine low temperature performance is bad, this is due to its chemical structure. Such as 23 - 11 type of Tg > 0 ℃. Actual use of fluorine ceramic tile seam filling agent performance in low temperature often said with a brittle temperature and the compression coefficient of hardy. Sizing formula and product shape on the brittleness temperature influence is big. 9, radiation resistance is poorer fluorine ceramic tile the radiation resistance of caulking grout is more bad of the a in elastomer, 26 type ceramic tile seam filling agent after radiation effect of crosslinking effect, 23 type is characterized by cracking effect. 10, as a kind of synthetic ceramic tile is filled seam an agent, fluorine ceramic tile seam filling agent has excellent resistance to chemicals, oil resistance, heat resistance performance, long-term use of temperature of 200 ° C above. Fluoride ceramic tile seam filling agent has high fluoride content from the chemical structure, strong C - F key, all saturated key etc. , which has excellent temperature resistance and excellent oil resistance. Given the ASTM D1418 in fluorine caulking agent called FKM ceramic tile, ceramic tile so FKM was used to represent the fluorine filling seam an agent. According to the SAE J200 / ASTM D2000 classification of ceramic tile gap filling agent, fluorine ceramic tile is filled seam an agent is classified as 'HK' material. The initial fluoride ceramic tile is filled seam an agent hexafluoropropylene and partial fluorine ethylene copolymer, developed by the United States dupont in 1957 for tank sealing in the field of aerospace, oil and gas sealing and sealing in the hydraulic system. Fluoride ceramic tile seam filling agent has been widely applied in industrial field. Used for o-rings, U, V, Y type ring, gasket, and other forms of static seal and dynamic seal. And some other parts of the fuel and drive system.

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