Polytetrafluoroethylene Micro Powder yog dab tsi?
Polytetrafluoroethylene Micro Powder, tseem hu ua tsis tshua muaj molecular hnyav polytetrafluoroethylene micro hmoov, polytetrafluoroethylene ultrafine hmoov, thiab polytetrafluoroethylene wax, yog cov hmoov dawb uas tau txais los ntawm polymerization ntawm tetrafluoroethylene hauv cov kua dispersed, ua raws li condensation, ntxuav, thiab ziab kom qhuav. hnyav dawb-ntws hmoov.
Introduction
Polytetrafluoroethylene micropowder, tseem hu ua low molecular weight polytetrafluoroethylene micro hmoov los yog polytetrafluoroethylene ultrafine hmoov los yog polytetrafluoroethylene wax, yog ib tug dawb hmoov resin tau los ntawm polymerization ntawm tetrafluoroethylene nyob rau hauv ib tug dispersed kua, ua raws li los ntawm condensation, ntxuav, thiab ziab. Nws muaj cov khoom zoo xws li kub tsis kam, huab cua tsis kam, txias tsis kam, tsis muaj kev sib txhuam, tsis nplaum, tshuaj lom neeg ruaj khov, thiab hluav taws xob rwb thaiv tsev. Tsis tas li ntawd, vim nws qhov me me nruab nrab particle loj, nws muaj qhov zoo dispersibility thiab yooj yim rau muab sib xyaw nrog lwm cov ntaub ntawv. Polytetrafluoroethylene (PTFE) ultrafine micro hmoov yog dawb tsis tshua muaj molecular hnyav dawb-ntws hmoov nrog ruaj khov molecular qauv muaj xws li -(-CF2-CF2-)n, uas muaj tshuaj tiv thaiv zoo heev, thermal stability, siab weathering kuj (ntau tshaj kaum xyoo), UV tsis kam, kub tsis kam (tuaj yeem ua haujlwm kub yog nyob ib ncig ntawm 260 ° C), qhov kub thiab txias ntau (-200 txog +260 ° C), cov khoom siv tsis zoo, hluav taws xob rwb thaiv tsev siab (1017Ωcm), hluav taws kub retardancy, thiab zoo heev self-lubricating zog.
Cov yam ntxwv txawv
PTFE micro hmoov cov khoom muaj purity ntawm 100%, molecular hnyav ntawm tsawg tshaj li 10,000, thiab ib tug particle loj nyob rau hauv qhov ntau ntawm 0.5-15μm. Lawv tsis tsuas yog tuav tag nrho cov khoom zoo tshaj plaws ntawm polytetrafluoroethylene tab sis kuj muaj ntau yam khoom tshwj xeeb, xws li tsis muaj tus kheej agglomeration, tsis muaj hluav taws xob zoo li qub, zoo solubility, tsis muaj molecular yuag, zoo dispersibility, siab self-lubrication, thiab tseem ceeb txo nyob rau hauv kev sib txhuam coefficient. .
Kev siv ntawm Polytetrafluoroethylene Micro Powder
Polytetrafluoroethylene micropowder tuaj yeem siv los ua cov roj nplua nyeem ib leeg lossis ua cov khoom ntxiv rau cov yas, roj hmab, txheej, inks, lubricating roj, thiab roj. Thaum sib xyaw nrog cov yas los yog roj hmab, ntau yam kev ua cov hmoov zoo xws li kev sib xyaw tuaj yeem siv, thiab cov nyiaj ntxiv yog 5-20%. Ntxiv polytetrafluoroethylene micro hmoov rau cov roj thiab roj tuaj yeem txo qhov kev sib txhuam coefficient, thiab tsuas yog ob peb feem pua ntawm cov roj lubricating tuaj yeem ua rau lub neej ntawm lubricating roj. Nws cov organic solvent dispersion kuj tseem siv tau los ua tus neeg tso tawm.