6 feem ntau siv elastic fibers

Rau feem ntau siv elastic fibers, koj puas paub ntau npaum li cas?

Ntawm ntau hom kev ua haujlwm, elastic fiber, raws li "kev lag luam hnub ci", ua lub luag haujlwm tsis tuaj yeem hloov pauv hauv kev nplij siab hauv khaub ncaws, fluffy warmth, thiab lwm yam, vim tias nws tuaj yeem ua rau tib neeg lub cev muaj kev sib cuag zoo, yog li nws tau siv dav hauv textile. kev lag luam hauv Suav teb thiab txawm nyob hauv lub ntiaj teb. Nws occupies ib tug ruaj khov txoj hauj lwm nyob rau hauv textiles, thiab muab textile fabrics ib tug tej yam elasticity tau dhau los ua ib tug inevitable txoj kev loj hlob ntawm cov khaub ncaws textiles.

1. Diene elastic fiber (cov xov paj roj hmab)

Polyurethane elastic fiber yog hais txog cov fiber ntau ua los ntawm cov thaiv copolymer nrog polyurethane ua cov khoom tseem ceeb, hu ua spandex hauv kuv lub tebchaws. Lub npe yog Neolon, thiab German lub npe yog Dorlastan. Nws elasticity los ntawm qhov thaiv copolymer network qauv nyob rau hauv uas nws cov qauv molecular muaj li-hu ua "mos" thiab "nyuaj" ntu. Nrog sib txawv thaiv copolymer thiab cov txheej txheem sib txawv, cov fibers muaj qhov sib txawv elasticity thiab dyeing thiab tiav cov khoom tom qab tsim cov qauv sib txawv "segment" network.

Spinning txoj kev ntawm spandex muaj xws li qhuav spinning, ntub spinning, tshuaj tiv thaiv spinning thiab yaj spinning. Qhuav spinning tshuab yog feem ntau txoj kev ntawm spandex industrial ntau lawm. Nws muaj qhov zoo ntawm qhov ceev spinning ceev (1000 m / min), me me spinning fineness, cov khoom zoo thiab cov chaw ua haujlwm me me, tab sis tib lub sij hawm muaj cov pa phem loj. thiab tus nqi siab. Ntawm qhov tsis sib xws, yaj spinning tshuab tsis siv cov kuab tshuaj, coagulants, thiab tsis muaj teeb meem kev kho dej khib nyiab, cov nqi tsim khoom tsawg, thiab kev loj hlob muaj peev xwm, uas yog ib qho ntawm cov kev tshawb fawb hotspots tam sim no.

Spandex yog qhov ntxov tshaj plaws tsim thiab siv dav siv fiber ntau nrog cov cuab yeej tsim khoom lag luam tshaj plaws.

3. Polyetherester elastic fiber ntau

Polyetherester elastic fibers yog elastic fibers ua los ntawm yaj spinning ntawm polyester thiab polyether copolymer, thawj tsim los ntawm Teijin Corporation nyob rau hauv 1990. Polyetherester elastic fibers yog zoo ib yam nyob rau hauv cov qauv rau polyurethane elastic fibers thiab kuj muaj "segment" yam ntxwv yam ntxwv. Cov ntu "mos" feem ntau yog ntu polyether, uas muaj qhov yooj yooj yim thiab cov saw ntev, thiab yooj yim rau elongate thiab deform; ntu "nyuaj" yog ntu polyester, uas yog qhov tawv tawv, yooj yim rau crystallize, thiab muaj cov saw luv. Nws ua raws li cov node thaum deformed los ntawm quab yuam, imparts elastic rov qab zog, thiab txiav txim siab lub zog thiab kub tsis kam ntawm fiber.

Polyetherester elastic fiber tsis tsuas yog muaj lub zog siab, tab sis kuj muaj elasticity zoo. Thaum lub elongation yog 50 feem pua, lub elasticity ntawm nruab nrab-lub zog elastic fiber yog sib npaug ntawm spandex, thiab lub melting point kuj siab dua. Dyed, yog li polyester fibers kuj tuaj yeem ua tiav rau hauv cov ntaub ntawv elastic. Tsis tas li ntawd, lawv muaj lub teeb pom kev zoo, chlorine bleach resistance, acid thiab alkali tsis kam, thiab lwm yam zoo dua li spandex zoo tib yam. Vim nws cov kua qaub zoo thiab alkali tsis kam, cov ntaub tsim los ntawm nws thiab polyester tuaj yeem ua rau txo qis alkali los txhim kho cov ntaub ntawm cov ntaub.

Hom fiber ntau no kuj muaj qhov zoo ntawm cov khoom siv pheej yig, yooj yim tsim thiab ua, thiab yog ib hom kev cog lus fiber ntau.

4. Polyolefin elastic fiber (DOW XLA fiber ntau)

Polyolefin elastic fibers yog tsim los ntawm polyolefin thermoplastic elastomers los ntawm yaj spinning. XLA, launched los ntawm DOW Chemical nyob rau hauv 2002, yog thawj coj mus muag polyolefin elastic fiber, tau los ntawm yaj spinning ntawm ethylene-octene copolymer (POE) catalyzed los ntawm metallocene catalyst nyob rau hauv situ polymerization. Nws muaj elasticity zoo, 500 feem pua ​​​​elongation ntawm so, kub tsis kam ntawm 220 degree C, chlorine bleaching kuj thiab muaj zog acid thiab alkali kev kho mob, thiab muaj zog tiv thaiv ultraviolet degradation. Nws cov txheej txheem ntau lawm yog qhov yooj yim, tus nqi ntawm cov khoom siv qis dua li ntawm spandex, thiab tib lub sijhawm, yuav luag tsis muaj kuab paug hauv cov txheej txheem tsim khoom thiab nws yooj yim rau rov ua dua.

Vim yog cov khoom zoo ntawm polyolefin elastic fibers, lawv tau siv dav hauv xyoo tas los no.

5. Composite elastic fiber (T400 fiber ntau)

CONTEX (ST 100 composite elastic fiber, sib sau ua ke hu ua T400 elastic fiber nyob rau hauv kev ua lag luam) yog ob lub ntsiab lus tshiab cov khoom siv elastic fiber ntau ua los ntawm DuPont Sorona ua cov khoom siv tseem ceeb thiab cov tsiaj zoo tib yam los ntawm cov txheej txheem sib xyaw ua ke; nws muaj ib tug natural ruaj khov kauv Curl thiab zoo heev bulkiness, elasticity, elastic rov qab tus nqi, xim ceev thiab tshwj xeeb tshaj yog mos tes xav, yuav woven ib leeg los yog interwoven nrog paj rwb, viscose, polyester, nylon, thiab lwm yam. Nws tsis tsuas yog daws tau ntau yam teeb meem xws li cov tsoos spandex yarn tsis yooj yim rau zas, muaj ntau elasticity, complex weaving, tsis ruaj tsis khov ntaub loj, thiab yooj yim aging thaum siv, tab sis kuj tuaj yeem ncaj qha woven ntawm huab cua dav hlau, dej dav hlau, thiab xub ncej looms, tsis zoo li spandex Nyob rau hauv txoj kev no, cov xov paj npog yuav tsum tau ua ua ntej weaving ntawm lub tshuab, uas txo tus nqi ntawm cov xov paj thiab txhim kho qhov zoo uniformity ntawm cov khoom.

6. Cov tawv elastic fibers

Cov elastic fibers tau hais los saum toj no yog tag nrho cov mos elastic fibers, uas tuaj yeem deform thiab rov qab zoo heev hauv kev ntxhov siab. Los ntawm qhov kev xav ntawm thermodynamics, elasticity los ntawm qib ntawm kev ywj pheej (los yog kev tsis sib haum xeeb) ntawm cov saw molecular, uas yog, kev hloov pauv ntawm tus nqi entropy ntawm lub cev, yog li cov crystallinity ntawm cov fibers saum toj no tsawg heev. Txawm li cas los xij, qee cov fibers ua nyob rau hauv kev ua haujlwm tshwj xeeb, xws li polypropylene (PP), polyethylene (PE) thiab lwm yam fibers, txawm hais tias tsis yooj yim deformed nyob rau hauv qis kev ntxhov siab (vim lawv cov modulus siab dua), tab sis nyob rau hauv siab dua, tshwj xeeb tshaj yog nyob rau hauv qis kub. , nws kuj muaj elasticity zoo dua, yog li hom fiber ntau no hu ua tawv elastic fiber.

Lub deformation thiab rov qab los ntawm cov tawv elastic fibers yog qhov txawv ntawm cov elastic fibers. Piv txwv li, yog hais tias lub zog elastic PP fiber yog stretched rau lub thib ob lub sij hawm tam sim ntawd tom qab rov qab, nws modulus thiab lub zog yuav poob ntau. extension, nws cov deformation rov qab yog nyob ze rau thawj nkhaus. Qhov no yog vim hais tias thaum lub zog elastic fiber yog stretched thiab zoo, tsis tsuas yog stretching thiab retracting deformation ntawm cov saw ntev ntu ntawm crimped molecules ntawm cov mos elastic fibers tshwm sim, tab sis kuj nrog ib co kev hloov nyob rau hauv lub microporous qauv thaum lub sij hawm stretching txheej txheem. . Lub wafer network qauv kuj tau hloov. Tsuas yog tom qab cov kev hloov pauv no maj mam rov qab los, lawv tuaj yeem rov qab mus rau lawv lub xeev qub, yog li lawv deform thiab rov qab los nyob rau hauv siab dua, uas yog hu ua tawv elastic fibers.

Tam sim no, tawv elastic fibers tsis tau siv dav hauv textiles, tab sis vim lawv cov yam ntxwv elastic txawv ntawm cov mos elastic fibers, qee qhov tshwj xeeb textiles tuaj yeem tsim.