Daim ntawv thov ntawm polytetrafluoroethylene (PTFE) membrane

Polytetrafluoroethylene (PTFE) membrane lim yog ua los ntawm polytetrafluoroethylene, uas yog nthuav thiab stretched los ua ib tug microporous membrane. Polytetrafluoroethylene membrane lim yog laminated ntawm ntau cov ntaub los yog cov ntaub ntawv los ntawm cov txheej txheem tshwj xeeb ntawm cov khoom siv hauv paus, dhau los ua cov khoom siv lim tshiab nrog cov kab me me thiab cov pore loj thiab cov porosity loj. Nws tuaj yeem lim tag nrho cov hmoov av nrog rau cov kab mob thaum tswj cov huab cua ncig. Yuav kom ua tiav lub hom phiaj ntawm sterilization, purification thiab cua ncig.

Hydrophobic PTFE membrane cov ntxaij lim dej yog tsim los ntawm cov khoom ntuj tsim thiab ruaj khov hydrophobic PTFE. Txawm tias nyob rau hauv qhov sib txawv tsis tshua muaj siab, nws tseem tuaj yeem ua kom cov dej ntws zoo ntawm cov huab cua ntub lossis lwm yam roj, thaum cov kua dej tsis tuaj yeem dhau mus. Nws qhov kev ua tau zoo yog qhov tsis sib xws rau ntawm hydrophilic membrane. Hydrophobic PTFE membrane lim tau zoo lim ntau yam tshuaj muaj zog corrosive lossis kuaj.

PTFE zaj duab xis tiv taus kub, muaj zog acid, muaj zog alkali, organic hnyav thiab oxidant. PTFE membranes thiab hydrophilic PTFE membrane lim yog chemically tshaj thiab resistant rau feem ntau cov kuab tshuaj. Polytetrafluoroethylene daim nyias nyias yog chemically ruaj khov thiab inert, haum rau chemically corrosive organic solvents, aqueous daws thiab gases, thiab resistant rau feem ntau acids, alkalis thiab daws.