Kev lag luam fluoropolymer yog raws li TFE, VDF, thiab tsawg dua CTFE.Piv txwv ntawm comonomers muaj xws li PMVE, PEVE, PPVE, HFP, CTFE, thiab PFBE.Cov txiaj ntsig ntawm kev hloov pauv ntawm fluorine rau hydrogen nyob rau hauv ib lub polymer muaj xws li tshuaj lom neeg thiab hnyav tsis kam, txhim kho cov khoom hluav taws xob xws li qis dielectric tas li, qis coefficient ntawm kev sib txhuam, siab melting point, nce photostability thiab thermal stability, txhim kho nplaim taws, thiab tsis muaj zog txhua yam. khoom.Cov khoom kawg yog ua tiav thaum lub polymer yog fluorinated nkaus.
Fabrication Techniques
Nrog rau kev zam ntawm ob lub fluoropolymers, PVF thiab PTFE, tus so ntawm cov resins tau piav qhia hauv tshooj no tuaj yeem ua tiav los ntawm cov txheej txheem yaj txheej txheem xws li kev txhaj tshuaj, hloov pauv thiab tshuab molding, extrusion thiab rotational molding.Cov txheej txheem cov khoom siv rau fluoropolymer yuav tsum tau ua los ntawm corrosion-resistant alloys vim hais tias ntawm corrosive compound uas tej zaum yuav raug tsim thaum fluoropolymer yog rhuab saum lawv cov ntsiab lus melting.Ntau dua yaj viscosity ntawm cov resins yuav xav tau ntau cov hmoov thiab cov khoom ntsuas siab dua.
PTFE yog ua tiav siv cov hmoov hlau ua cov txheej txheem uas lub preform yog molded thiab "sintered."Compression molding kuj tseem siv tau los tsim PTFE qhov chaw.PTFE dispersions yog siv los ntawm cov txheej txheem zoo sib xws rau lwm cov txheej txheem.Muab tshuaj txhuam extrusion nyob rau hauv uas PTFE yog tov nrog ib tug hydrocarbon, ua ntej molding ib tug preform, yog siv mus txuas ntxiv fabricate PTFE rau hauv cov hlab, tapes, thiab hlau rwb thaiv tsev.Cov hydrocarbon yog vaporized ua ntej ib feem yog sintered.
PVF yog dispersed nyob rau hauv ib tug polar latent hnyav xws li dimethyl acetamide thiab yog yaj-extruded li plastisol, ua raws li los ntawm hnyav tshem tawm los ntawm ziab.
Daim ntawv thov
Cov khoom ntawm fluoropolymers uas tau coj mus rau cov ntawv thov suav nrog cov tshuaj tiv thaiv, thermal stability, cryogenic zog, tsis tshua muaj coefficient ntawm kev sib txhuam, tsis tshua muaj zog nto, tsis tshua muaj dielectric tas li, siab ntim thiab nto tiv taus, thiab nplaim taws.Fluoropolymers yog siv los ua liners (txheej txheem txheej txheem) vim lawv tsis kam mus rau tshuaj tua kab mob.Lawv muab cov khoom siv ruaj khov, tsis tshua muaj txij nkawm, thiab kev txuag nyiaj rau cov hlau txawv txawv rau kev siv ntawm qhov kub thiab txias yam tsis qhia impurities.Cov khoom siv hluav taws xob ua rau cov fluoropolymer muaj txiaj ntsig zoo hauv kev siv hluav taws xob thiab hluav taws xob ua cov insulators, xws li FEP hauv cov ntaub ntawv sib txuas lus.
Hauv cov khoom siv hauv tsheb thiab chaw ua haujlwm, cov khoom siv hluav taws xob ntawm fluoropolymer muaj txiaj ntsig zoo hauv kev sib txhuam qis thiab cov ntsaws ruaj ruaj uas tiv thaiv kev tawm tsam los ntawm hydrocarbons thiab lwm yam kua dej.Hauv kev ua zaub mov, Lub Chaw Tswj Xyuas Khoom Noj thiab Tshuaj tau pom zoo cov qib fluoropolymer yog cov khoom siv rau cov khoom siv vim lawv tsis kam rau cov roj thiab cov ntaub ntawv ntxuav, thiab lawv cov khoom tiv thaiv thiab tsis tshua muaj kev sib txhuam.Hauv cov khoom siv hauv tsev, fluoropolymer yog siv los ua cov txheej txheem tsis zoo rau cookware thiab cov khoom siv.Cov khoom siv kho mob xws li thaj chaw phais thiab cov kab mob plawv vam khom rau lub sijhawm ntev ntawm fluoropolymer nrog rau lawv lub zog qis thiab tshuaj lom neeg.
Rau tshav dav hlau, chaw ntau pob, thiab lwm yam qauv, iav fiber ntau coated nrog PTFE yog fabricated rau hauv ru tsev thiab enclosures.PTFE muab kev tiv thaiv zoo heev rau huab cua, suav nrog raug UV rays nyob rau hauv tshav ntuj, nplaim taws tiv thaiv kev nyab xeeb, thiab tsis tshua muaj zog saum npoo av, thiab yooj yim tu.
Post lub sij hawm: May-30-2018