Yog Non-woven Fabric Porous

Non-woven fabricsyog tsim los ntawm ntau txoj kev xws li spunbonding, meltblowing, los yog rab koob punching.

Nyob rau hauv spunbonding, nruam filaments yog extruded thiab spun mus rau ib tug conveyor siv, ces bonded ua ke mechanically los yog thermally. Cov txheej txheem no tuaj yeem tsim cov ntaub nrog ntau qhov sib txawv ntawm qhov porosity, nyob ntawm seb yam zoo li qhov ntom ntawm cov filaments thiab cov txheej txheem sib txuas ua haujlwm.

Meltblowing yuav extruding molten polymer los ntawm cov nozzles zoo mus rau ib tug high-ceev cua kwj, uas ces txias thiab solidifies cov fibers mus rau ib tug collector screen. Cov ntaub uas tshwm sim feem ntau muaj qhov sib txawv ntawm microfibers, tsim kom muaj cov qauv ntxeem tau haum rau kev siv xws li pom lossis cov ntaub kho mob.

Koob xuas nrig ntaus siv rab koob rab koob los cuam tshuam cov fibers, tsim cov ntaub nrog cov qauv peb sab. Nyob ntawm qhov ceev thiab kev npaj ntawm cov fibers, koob-punched non-wovens tuaj yeem pom ntau theem ntawm porosity.

Lub porosity ntawm cov ntaub tsis-woven tuaj yeem tswj tau thaum lub sijhawm tsim khoom los ntawm kev kho qhov tsis xws li fiber ntau, lub vev xaib tsim, thiab cov txheej txheem kev sib txuas. Qhov no versatility tso cai rau zus tau tej cov non-woven fabrics tailored rau tej daim ntaub ntawv, xws li los ntawm heev ntxeem tau cov ntaub ntawv siv nyob rau hauv filtration mus rau denser fabrics siv rau rwb thaiv tsev los yog barrier daim ntaub ntawv.