Melting point requirements thiab siab porosity ntawm PP yaj cua tshuab lim cartridge ua tshuab

Cov txheej txheem ntawm PP yaj cua tshuab lim lub cav ua cav yog tias cov txheej txheej txheej yog khov, cov txheej txheem puab muaj nyias, nyias sab yog xoob, thiab sab hauv txheej yog nruj nreem tsom kom maj mam kho cov qauv. Qhov cim gradient tob pom cov ntaub ntawv muaj cov xim uas muaj peb sab hauv, featuring siab porosity, siab rejection, cov av loj av tuav, cov dej loj txaus thiab tsis tshua muaj siab.

PP meltblown lim khoom tshuab tshuab ntxhua khaub ncaws yog tshuab hom polymer extrusion non-woven, tag nrho thermoplastic (high-temperature melting, low-temperature curing) polymer chip raw cov ntaub ntawv yuav siv tau nyob rau hauv cov txheej txheem ntawm cov yaj-lim dej. Polypropylene yog ib hom slicing cov khoom siv nyob rau hauv lub yaj-blown txheej txheem. Tsis tas li ntawd, cov ntaub ntawv polymer feem ntau siv nyob rau hauv cov txheej txheem uas siv rau hauv lub tshuab ntxhua tsw yog polyester, polyamide, polyethylene, polytetrafluoroethylene, polystyrene, PBT, EMA, EVA, thiab lwm yam. Olefin polymer raw khoom (xws li polypropylene) muaj qhov siab ntawm polymerization , kom lub cua sov kub siab tshaj qhov melting point ntawm 100 ° C yuav tsum melted ntawm kub dua, thiab cov cua sov qhov sov yog qhov kub me ntsis tshaj nws cov khoom noj khoom haus thiab cov hmoov tsuag. Ostenic feedstocks feem ntau tsis xav kom qhuav. Cov yam ntxwv ntawm tus qauv hauv Meltblown lim lub cav ua haujlwm yog tias cov khoob khoob fiber ntau yog tsawg dua, feem ntau tsawg dua 10 microns, thiab feem ntau ntawm cov kua fiber ntau ntawm 1 thiab 4 microns.

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