PTFE, hu ua "King ntawm plastics", yog cov molecular polymer muaj ntau yam ntxwv zoo heev. Txij li thaum nws tsim muaj nyob rau hauv 1938, nws tau pom cov nqi txawv tshaj plaw hauv ntau thaj teb.
PTFE lub tshuaj ruaj khov yog qhov tshwj xeeb. Nws tuaj yeem tawm tsam txoj kev yaig ntawm yuav luag txhua cov acids, alkalis thiab ntau yam kuab tshuaj, thiab qhov kev ruaj khov no tseem zoo heev txawm tias muaj kev kub siab ib puag ncig. Tsuas yog cov tshuaj tshwj xeeb xws li Molten Alkali cov tshuaj lom neeg, nws yog qhov nyuaj rau kev ua phem xws li tshuaj lom neeg thiab cov chaw muag tshuaj uas yuav tsum muaj tshuaj lom neeg heev.
Hais txog cov khoom siv lub cev, PTFE txoj kev ua tau zoo kuj tseem ceeb. Nws muaj qhov qis heev los txhuam coefficient, qhov qis qis txhuam coefficients ntawm cov ntawv thov xws li cov piston piston uas yuav tsum tau ua kom txo qis. Ntxiv mus, PTFE tuaj yeem siv cov nquag siv nyob rau hauv qhov chaw kub ntau ntawm {1}} degree. Nws tsis yog tiv taus qhov kub tsawg, tab sis kuj tseem ua rau muaj qee yam siv tshuab nyuaj ntawm cov kub tsawg. Nws tseem tiv chim rau qhov kub thiab muaj peev xwm ua haujlwm ntev ntev ntawm 260 degree.
PTFE tseem muaj hluav taws xob hluav taws xob zoo. Nws cov qauv molecular yog qhov sib xws, nws lub sij hawm dipole yog xoom, thiab nws cov ditectric tas li yog ruaj khov ntawm 2.1, uas tseem tsis hloov pauv nyob rau hauv ib qho kub thiab zaus. Nws tuaj yeem siv los ua cov khoom siv hluav taws xob zoo hluav taws xob rau cov xaim, thiab lwm yam.
Txawm li cas los xij, PTFE tsis zoo tag nrho. Nws muaj cov teeb meem ntws txias thiab yuav deform nyob rau hauv lub siab rau lub sijhawm ntev; Nws yog heev tsis-nplaum thiab tsis haum rau cov ntawv thov uas yuav tsum tau sib raug zoo; Nws linear nthuav kev coefficient loj thiab hloov pauv tsis xwm yeem nrog kub.
Txawm hais tias nws cov shortcomings, PTFE tseem muaj txoj hauj lwm Irreplaceable, tshuaj lom neeg, thiab nws daim ntawv thov ntau yog nthuav dav nrog kev txhim kho thev naus laus zis.