Piav qhov txawv ntawm epoxy iav fiber board thiab PTFE pawg thawj coj saib kom meej

Niaj hnub no, kuv xav qhia rau koj paub qhov txawv ntawm epoxy iav fiber board thiab PTFE board, ces cia peb saib nws ua ke.

Ua ntej ntawm tag nrho cov, peb yuav tsum paub dab tsi epoxy iav fiber board thiab PTFE board yog.

PTFE daim hlau muab faib ua ob hom: daim hlau molded thiab tig daim hlau. Cov phaj molded yog ua los ntawm polytetrafluoroethylene resin los ntawm molding ntawm chav tsev kub, ces sintered thiab txias. Lub rooj tsavxwm tig yog ua los ntawm PTFE resin los ntawm nias, sintering, thiab tev. Muaj ob hom PTFE daim hlau: molded daim hlau thiab tig daim hlau. Cov phaj molded yog ua los ntawm polytetrafluoroethylene resin los ntawm molding ntawm chav tsev kub, thiab ces sintered thiab txias. Lub rooj tsavxwm tig yog ua los ntawm PTFE resin los ntawm nias, sintering, thiab tev. Kev kub siab tiv thaiv mus txog 250 ℃, tsis kub tsis kam -196 ℃, corrosion kuj, huab cua tsis kam, siab lubrication, tsis-adhesion thiab lwm yam ntxwv. Tsuas yog cov hlau molten alkali, PTFE phaj tsis tshua muaj corroded los ntawm cov tshuaj reagents. Piv txwv li, nyob rau hauv concentrated sulfuric acid, nitric acid, hydrochloric acid, los yog txawm boiled nyob rau hauv aqua regia, nws qhov hnyav thiab kev ua tau zoo tsis hloov, thiab nws yuav luag insoluble nyob rau hauv tag nrho cov kuab tshuaj.

Epoxy iav fiber board tseem hu ua epoxy iav fiber board, epoxy phenolic laminated iav ntaub board, epoxy resin hais txog cov organic polymer compound uas muaj ob los yog ntau tshaj epoxy pawg nyob rau hauv lub molecule. Tus txheeb ze molecular loj ntawm tsis siab. Cov qauv molecular ntawm epoxy resin yog tus cwj pwm los ntawm pawg epoxy nquag hauv cov saw hlau molecular. Cov pab pawg epoxy tuaj yeem nyob ntawm qhov kawg, hauv nruab nrab lossis hauv cov qauv cyclic ntawm cov saw hlau molecular. Vim hais tias cov qauv molecular muaj active epoxy pawg, lawv muaj peev xwm mus hla kev sib txuas cov tshuaj tiv thaiv nrog ntau hom curing agents los tsim insoluble thiab infusible polymers nrog peb-txoj kev network qauv.

Yog li dab tsi yog qhov txawv ntawm epoxy iav fiber board thiab PTFE board?

PTFE board yog ua los ntawm polytetrafluoroethylene resin los ntawm cov txheej txheem tshwj xeeb xws li molding, hydraulic siab, tig, thiab lwm yam. Nws cov kev ua tau zoo tuaj yeem tiv taus qhov kub thiab txias ntawm 260 degrees. Lub epoxy iav fiber board yog ua los ntawm iav fiber impregnated nrog epoxy resin kua nplaum thiab kho tus neeg sawv cev. , qhov kub tsis kam yog li 100 degrees, PTFE board tuaj yeem tiv taus cov kua qaub thiab alkali, thiab epoxy ntshai cov kua qaub. Los ntawm qhov kev xav ntawm kev faib cov yas, cov qub belongs rau cov yas thermoplastic, thiab tom kawg belongs rau thermosetting yas. Lub epoxy iav fiber board muaj lub zog siab ntawm chav tsev kub.