Lub cev muaj zog ntawm Spandex

Synthetic fibers nrog siab tawg elongation (400% +), tsis tshua muaj modulus thiab siab elastic rov qab tus nqi. Suav lag luam npe rau multi-thaiv polyurethane fiber ntau. Kuj tseem hu ua elastic fiber. Spandex muaj elongation siab (500% ~ 700%), tsis tshua muaj elastic modulus (200% elongation, 0.04 ~ 0.12g / denier) thiab siab elastic rov qab tus nqi (200% elongation, 95% ~ 99%). Ntxiv rau qhov muaj zog ntau dua, lwm yam khoom siv lub cev thiab cov khoom siv kho mob zoo ib yam li ntuj latex silk. Nws tiv taus cov tshuaj degradation dua li latex filament, muaj cov thermal stability, softening kub txog 200 degree los yog ntau tshaj. Feem ntau cov dyes thiab xov tooj siv rau hluavtaws thiab ntuj fibers kuj haum rau dyeing thiab xov spandex. Spandex tiv taus hws, dej hiav txwv, thiab ntau yam qhuav ntxuav thiab tshuaj pleev thaiv hnub feem ntau. Lub sij hawm ntev raug rau lub hnub ci los yog tshuaj dawb chlorine kuj yuav ploj mus, tab sis cov degree ntawm fading nws txawv heev nyob ntawm seb hom spandex.
Spandex muaj xws li elasticity siab vim hais tias nws cov polymer saw yog tsim los ntawm ib tug tsawg melting point, amorphous "mos" saw segment rau cov niam txiv thiab embedded nyob rau hauv lub siab melting point, crystalline "nyuaj" saw segment. Lub network qauv yog tsim los ntawm cov saw hlau molecular ntawm cov saw hloov tau yooj yim nrog qee qhov sib txuas. Vim muaj kev sib cuam tshuam me me ntawm cov saw hlau molecular, nws tuaj yeem nthuav dav thiab nthuav dav, ua rau muaj kev ua haujlwm loj elongation. Lub molecular binding quab yuam ntawm cov hlua nruj ntu yog qhov loj, thiab cov saw hlau molecular yuav tsis ncua mus tas li, ua rau muaj kev ua haujlwm siab. Feem ntau ntawm cov hlaws ntawm Radon filaments yog aub-pob txha-zoo li tus, thaum qee qhov filaments muaj du lossis jagged nto. Lub zog tawg yog qhov qis tshaj plaws nyob rau hauv tag nrho cov textile fibers, tsuas yog 0.44 ~ 0.88CN/dtex (lub zog ntawm polyether hom yog siab dua li ntawm polyester hom). Lub hygroscopicity ntau yog me me, feem ntau yog 0.3-1.2% (lub hygroscopicity ntawm cov hlau compound yog me ntsis siab dua li ntawm cov monofilament). Thaum tshav kub kub kuj sib txawv heev nyob ntawm ntau yam, feem ntau fibers yog khaws cia nyob rau hauv qhov ntau ntawm 90 ~ 150 ° C rau ib lub sij hawm luv luv, cov fibers yuav tsis puas, qhov zoo ntawm ironing kub yog qis dua 150 ° C, thiab tuaj yeem ua kom sov thiab ntub dej. ntxuav. Cov dyeing kev ua tau zoo dua, tuaj yeem dyeing rau hauv ntau yam xim, cov xim muaj zog affinity rau fiber ntau, tuaj yeem hloov mus rau feem ntau ntawm ntau hom dyes, thiab muaj tshuaj lom neeg zoo, tsis kam rau feem ntau ntawm cov kua qaub thiab alkali. , chemical agents, organic solvents, dry cleaning agents and bleach, as well as the sun and snow resistance, but not resistant to oxides, easy to make the fiber yellow and strength txo.