Polytetrafluoroethylene (PTFE) yog cov polymer compound tsim los ntawm tetrafluoroethylene monomer (cf₂ {{0}=Cf₂). Nws cov qauv molecular tshwj xeeb uas tsis muaj tshuaj lom neeg thiab kev sib txhuam uas siv hluav taws xob tsis zoo, ua rau nws tsis tshua muaj kev sib txhuam, ua rau nws tsis muaj kev sib txhuam.
Microstructury, PTFE molecular saw muaj cov tshuaj pab roj carbon thiab fluorine atoms, sib sau ua ib txwm muaj, helical, ntev} txoj saw configuration. Txhua cov roj teeb aom tau ua txhua yam rau ob lub fluorine atom los ntawm kev sib cog lus muaj zog, nrog ib lub zog sib khi ua ke txog 460 KJ / Mol. Cov c- f kev sib raug zoo tsis tsuas yog kho kom zoo nkauj {}}}}}} 10 degree. Cov txheej tiv thaiv tuab tsim los ntawm cov tshuaj fluorine atoms (thiab lawv cov khoom siv tsis muaj zog ntxiv) txuas ntxiv rau cov khoom sib txhuam kom zoo, thiab cov kab mob tawm tsam.
Nyob rau hauv cov nqe lus ntawm nws cov qauv siv lead ua, PTFE Cov Khoom Taw Qhia Polycrystalline, muaj cov chaw ua haujlwm crystalline thiab amorphous. Thaj chaw crystalline uas tiv thaiv siab thiab seem ruaj khov rau cov khoom, thaum cov cheeb tsam amorphous muab cov khoom tsim nyog. Los ntawm kev taw qhia ncab ncab, cov qauv hluav taws xob fibroous yog tsim, ua rau nthuav dav polytetraflosethylene (Eptfeof cov khoom siv dav dav thiab limhtration membranes.
Raws li lub tsev tseem ceeb hauv kev lag luam hauv ntiaj teb no, PTFE cov txheej txheem sib npaug sib npaug, kev tiv thaiv tsis tu ncua, thiab kev tiv thaiv ib puag ncig kev lag luam, thiab kev tiv thaiv ib puag ncig kev tsim tawm. Peb tau cog lus los muab cov neeg yuav khoom nrog cov kev daws teeb meem PTFE uas tau raws li kev nce qib thoob ntiaj teb, ua kom qhov kev nce qib siab, ua rau muaj kev nce qib siab.
