Kujawsko-Pomorskie andou715
15-07-20 0 Odsłon

Brief introduction: Poly (p-hydroxybenzoate) is a kind of chemical substance, which is formed by polycondensation of p-hydroxybenzoate. It is mainly used for high temperature resistant and oil-free lubrication seals, light industrial machinery, chemical machinery, electronic appliances, instrument parts and engine connectors, etc. Also known as polyphenyl ester, poly oxybenzoyl (POB), poly-p-oxybenzoyl (POB), oxybenzoyl polyester (OBP). A polymer with a p-oxbenzoyl repeating structural unit in its main chain. It is light yellow to brown yellow crystalline powder or granular material. Its relative density of homopolymer is 1.44; its water absorption is less than 0.02%; its continuous use temperature is 316 鈩? which shows a non viscous fluid like metal at 425 鈩? its crystallinity is very high; its self-lubricating property is good; its tensile strength is 17.64mpa, tensile modulus is 0.42gpa, bending strength is 38.7mpa, bending modulus is 7.74gpa, compression strength is 107.8mpa; its volume resistivity is more than 1015 惟路 cm. The product is PTFE gasket modified by adding polyphenylene ester.PTFE Washers manufactory website:http://www.tronshal.com/washers/ptfe-washers/


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