Lub hnab ntim khoom uas tsis yog woven yog ib yam khoom ntawm ib puag ncig tus phooj ywg lub hnab, thiab nws tseem yog lub hnab ntim khoom siv feem ntau thaum peb mus rau lub tsev loj yuav khoom. Lub hnab ntim khoom tsis-woven muaj cov yam ntxwv ntawm toughness, durability, zoo nkauj tsos, thiab zoo huab cua permeability. Nws tuaj yeem rov siv dua thiab ntxuav, thiab nws tuaj yeem ua lub luag haujlwm tshaj tawm thaum cov neeg siv khoom siv rau kev yuav khoom.
Decomposition ntawm non-woven khw hnab
Non-woven khw hnab yog non-woven fabrics ua los ntawm yas. Cov ntaub ntawv siv tsis-woven feem ntau yog polypropylene (abbreviated li PP) los yog polyethylene terephthalate (abbreviated li PET)
Cov tshuaj molecular qauv ntawm polyethylene yog ruaj khov thiab nyuaj rau decompose. Nws yuav siv sij hawm 300 xyoo rau cov hnab yas kom decomposed; Thaum cov qauv tshuaj ntawm polypropylene tsis muaj zog, cov saw hlau molecular tuaj yeem tawg tau yooj yim, uas tuaj yeem degraded zoo thiab tsis muaj tshuaj lom. Nkag mus rau lub voj voog ib puag ncig tom ntej hauv daim ntawv ntawm lub hnab ntim khoom uas tsis yog-woven tuaj yeem decomposed tag nrho hauv 90 hnub.
Hauv cov ntsiab lus, polypropylene (PP) yog hom yas, thiab cov pa phem rau ib puag ncig tom qab pov tseg tsuas yog 10% ntawm cov hnab yas.
Hom tsis-woven khw hnab
Cov hnab tes tsis-woven uas tsim los ntawm cov khoom sib txawv kuj txawv, thiab cov neeg siv khoom tuaj yeem xaiv cov hnab tsis-woven lawv xav tau raws li qhov xav tau tiag tiag.
Spunbond non-woven hnab: Tom qab cov polymer tau extruded thiab ncab los tsim cov filaments tas li, cov filaments tau muab tso rau hauv lub vev xaib, thiab lub vev xaib yog sib koom ua ke los ntawm nws tus kheej, thermally bonded, chemically bonded lossis mechanically reinforced. Lub hnab T-shirt ua tshuab hloov lub vev xaib mus rau hauv cov ntaub tsis-woven.
