Qhov sib txawv ntawm" PTFE" thiab" PFA" ;:
Tsos: PFA yog translucent, PTFE yog opaque ntshiab dawb.
Qhov kub thiab txias tsis kam: PFA: -200 ~ +260oC, PTFE: -200 ~ +250oC.
Cov duab ntawm cov khoom siv raw: PFA yog ntau, PTFE yog hmoov.
PTFE:
PTFE kheev hais raws li" tsis-lo txheej" lossis" yooj yim rau ntxuav cov khoom." Cov khoom siv tiv thaiv kab mob rau cov acids thiab alkalis thiab ntau cov kuab tshuaj organic, thiab muaj ze li ntawm cov tshuaj tiv thaiv tsis haum. Nyob rau tib lub sijhawm, PTFE muaj cov yam ntxwv ntawm qhov kub tsis kam tiv thaiv, thiab nws cov txhuam kev sib txhuam yog qhov tsawg heev, yog li nws tuaj yeem siv cov roj nplua nyeem, thiab nws tseem yog cov txheej xim zoo nkauj rau kev ntxuav yooj yim ntawm txheej sab hauv ntawm cov kav dej.
Huab cua ua hauj, hluav taws xob tsis kam thiab tsawg permeability:nws tuaj yeem raug cov pa ntev ntev, thaum lub ntsej muag thiab kev ua tau zoo tsis hloov.
Uas tsis yog-combustibility:Qhov kev tso pa oxygen yog qis dua 90.
Acid thiab alkali tsis kam:nws yog qhov tsis txaus ntseeg nyob rau hauv muaj zog acids, muaj zog alkalis thiab cov kuab tshuaj organic.
Oxidation kuj:Nws tuaj yeem tiv taus qhov corrosion ntawm cov oxidants muaj zog.
Acidity thiab alkalinity:nruab nrab.
PFA:
PFA yas yog tus copolymer ntawm ib qho me me ntawm perfluoropropyl perfluorovinylether thiab polytetrafluoroethylene. Nws txhim kho lub yaj ua kom tiav thiab txo qhov viscosity ntawm kev daws, thiab nws cov kev ua tau zoo ib yam li ntawm polytetrafluoroethylene. Cov roj pleev no feem ntau ua tiav ncaj qha rau cov khoom lag luam los ntawm cov thermoplastic molding txoj kev siv. Nws yog qhov tsim rau ua rau cov khoom ua rau cov khoom tiv thaiv, cov khoom siv coj los tiv thaiv, cov khoom siv tiv thaiv, qhov chaw rwb thaiv tsev thiab cov khoom siv kho mob, cov xov hluav taws xob kub, hluav taws xob rau cable, khoom siv tiv thaiv ua kom tsis muaj zog, cov khoom siv sib khi, twj tso kua mis thiab valve bushings, thiab cov khoom siv tshuaj.
Nws lub sijhawm siv kub ntev yog -196-260 degrees, nws muaj cov tshuaj tiv thaiv zoo heev, tshuaj lom neeg tsis kam tiv thaiv kev tiv thaiv qis, kev sib txhuam qis tshaj, kev ua kom zoo yas, kev ua haujlwm hluav taws xob zoo, thiab nws cov hluav taws xob tsis cuam tshuam los ntawm qhov kub. Nws yog lub npe hu ua" YasKing"" ;.
Nws qhov kev tawm tsam tshuaj yog ib qho piv rau PTFE thiab zoo dua li vinylidene fluoride.
Nws nkag siab tsis kam thiab compressive zog yog zoo dua PTFE. Nws hashigh tensile lub zog thiab elongation tus nqi yuav ncav cuag 100-300%. Nws muaj cov khoom zoo dielectric thiab tiv taus hluav taws xob zoo heev.
Nws tsim nyog rau kev tsim cov khoom siv tiv thaiv corrosion, txo kev hnav ua haujlwm, kev khi, rwb thaiv tsev thiab cov khoom siv kho mob, cov xov hluav taws xob kub ntau, kab hluav taws xob, khoom siv tiv thaiv corrosion, cov khoom siv sib khi, twj tso kua mis thiab valve hav txwv yeem, thiab ntim tshuaj.
