Teflon yog dab tsi?
Apr 30, 2018
Polytetrafluoroethylene (Poly tetrafluoroethylene, abbreviated li PTFE), feem ntau hu ua "Plastic King", yog ib lub siab molecular polymer tau los ntawm polymerizing tetrafluoroethylene ua monomer. Dawb waxy, translucent, zoo heev tshav kub thiab txias tsis kam, tuaj yeem siv tau ntev ntawm -180 ~ 260ºC. Cov khoom no muaj cov yam ntxwv ntawm cov kua qaub thiab alkali tsis kam thiab tsis kam mus rau ntau yam organic solvents, thiab yuav luag insoluble nyob rau hauv tag nrho cov kuab tshuaj. Nyob rau tib lub sijhawm, PTFE muaj cov yam ntxwv ntawm qhov kub thiab txias, thiab nws cov coefficient ntawm kev sib txhuam tsis tshua muaj qis, yog li nws tuaj yeem siv rau lubrication.
