Umawoneka ngati silika, wonyezimira wonyezimira wa ngale, koma ndi wosavuta kuusamalira kuposa silika, ndipo ndi womasuka kuvala.”Kumva malingaliro otere, mutha kulingalira mosakayika kuti chilimwe chovala choyenera - nsalu ya triacetate.
Chilimwe chino, nsalu za triacetate zokhala ndi zonyezimira ngati silika, zowoneka bwino komanso zosalala, komanso kugonana kwabwino kwambiri komwe kudapindulira mafashoni ambiri.Tsegulani Little Red Book ndikusaka "triacetic acid", mutha kupeza zolemba zopitilira 10,000 kuti mugawane.Kuonjezera apo, nsaluyo sifunikira chisamaliro chochuluka kuti ikhale yosasunthika, ndipo imatha kuwoneka ngati yuan chikwi.
M'zaka zaposachedwa, triacetate nthawi zambiri imawonekera panjira ya Marc Jacobs, Alexander Wang ndi Acne Studios.Ndi imodzi mwansalu zomwe ziyenera kukhala ndi masika ndi chilimwe pamitundu yambiri yayikulu ndipo zakhala zikuyang'ana pamitundu yambiri yapamwamba.Kodi triacetate ndi chiyani kwenikweni?Kodi tingayerekezedi ndi silika weniweni?Kodi nsalu ya diacetic acid ndiyotsika kuposa triacetic acid?
01.Kodi triacetate ndi chiyani
Triacetate ndi mtundu wa Cellulose Acetate (CA), womwe ndi mankhwala opangidwa ndi Cellulose Acetate ndi kaphatikizidwe ka mankhwala.Kunena mwachidule, ndi mtundu wa zamkati zamatabwa zachilengedwe monga zopangira za ulusi wobwezerezedwanso, womwe ndi mtundu watsopano wachilengedwe komanso ulusi wapamwamba kwambiri wopangidwa ndi Mitsubishi Corporation yaku Japan.
02.Kodi ubwino wa triacetate fiber ndi chiyani?
Triacetate ndi yotchuka, makamaka chifukwa imatha kugwiritsidwa ntchito ndi silika wa mabulosi, omwe amadziwika kuti "silika wosamba wamba".Triacetate imakhala ndi gloss yofanana ndi silika wa mabulosi, imakhala yosalala, imakhala yofewa kwambiri ndipo imatulutsa khungu lozizira.Poyerekeza ndi ulusi wa poliyesitala, kuyamwa kwake m'madzi ndikwabwino, kuyanika mwachangu, sikophweka ku electrostatic.Chofunika kwambiri, chimagonjetsa zofooka za nsalu za silika ndi ubweya zomwe zimakhala zosavuta kuzisamalira komanso zosavuta kuzitsuka.Sikwapafupi kupunduka ndi makwinya.
Pankhani ya chitukuko chokhazikika, nsalu ya triacetic acid imapangidwa ndi matabwa oyeretsedwa kwambiri, ndipo zopangira zonse zimachokera ku nkhalango yokhazikika yachilengedwe yomwe imayendetsedwa bwino, yomwe ndi yokhazikika komanso yothandiza zachilengedwe.
03.Kodi mungasiyanitse bwanji diacetic kuchokera ku triacetic acid?
Mabizinesi ambiri ngati nsalu ya triacetic acid ndi nsalu ya diacetic acid amasiyanitsa kuti awonetse ubwino wa triacetic acid.Ndipotu, diacetic acid ndi triacetic acid ndizofanana kwambiri.Amakhala ndi kumverera kozizira komanso kosalala kofanana ndi kunyowa ngati silika, ndipo amalephera kuchapa ndi kuvala ngati poliyesitala.Komabe, asidi wa diacetic ali ndi ulusi wokhuthala pang'ono komanso mawonekedwe ake ocheperako kuposa triacetic acid, koma samamva kuvala komanso mtengo wake.
Njira yosavuta yodziwira asidi ya diacetic kuchokera ku triacetic acid ndikuyang'ana chizindikiro cha mankhwala.Chifukwa mtengo wa nsalu ziwirizi ndi zosiyana kwambiri, ngati chinthucho chili ndi triacetic acid, chizindikirocho chidzadziwika.Sizinatchulidwe mwatsatanetsatane kuti ulusi wa triacetate, womwe umatchedwa kuti acetate umatanthauza ulusi wa diacetate.
Tikayang'ana pakumverera, nsalu ya diacetic acid imamva youma, kutsekemera pang'ono;Nsalu ya triacetate imamva yosalala, yokoka mwamphamvu, pafupi ndi silika.
Malinga ndi akatswiri, onse a diacetate ndi triacetate ali mu acetate fiber (yomwe imadziwikanso kuti acetate fiber), yomwe ndi imodzi mwamitsinje yakale kwambiri padziko lonse lapansi.Acetate fiber imapangidwa ndi cellulose zamkati ngati zopangira, pambuyo pa acetylation, zotumphukira za cellulose esterified zimapangidwa, kenako ndi kupota kouma kapena konyowa.Ma cellulose akhoza kugawidwa mu diacetate CHIKWANGWANI ndi triacetate CHIKWANGWANI malinga ndi mlingo wa hydroxyl gulu m'malo ndi gulu acetyl.
Viniga wachiwiri ndi mtundu wa 1 acetate wopangidwa ndi hydrolysis pang'ono, ndipo digiri yake ya esterification ndiyotsika kuposa ya viniga wachitatu.Chifukwa chake, magwiridwe antchito amatenthetsa osakwana viniga atatu, ntchito yopaka utoto ndiyabwino kuposa viniga atatu, mayamwidwe a chinyezi ndi apamwamba kuposa vinyo wosasa atatu.
Viniga atatu ndi mtundu wa acetate, popanda hydrolysis, mlingo wa esterification ndi wapamwamba.Choncho, kukana kuwala ndi kutentha kumakhala kolimba, ntchito yopaka utoto ndiyosauka, kuchuluka kwa chinyezi (komwe kumatchedwanso kuchuluka kwa chinyezi) kumakhala kotsika.
04.Nchiyani chomwe chili chabwino kuposa triacetic acid ndi silika wa mabulosi?
Ulusi uliwonse uli ndi ubwino wake.Ulusi wa triacetate ndi wofanana ndi silika wa mabulosi m'mawonekedwe, mamvekedwe komanso amakoka.
Kuchokera kumalingaliro a akatswiri, chiphunzitso cha zinthu zamakina, mphamvu ya ma acetate atatu kumbali yotsika, kutalika kwapang'onopang'ono kumakhala kokulirapo, chiŵerengero cha mphamvu yonyowa ndi mphamvu yowuma ndi yochepa, koma yapamwamba kuposa ya viscose rayon, poyamba. modulus ndi yaying'ono, kuyambiranso kwa chinyezi kumakhala kochepa kuposa silika wa mabulosi, koma apamwamba kuposa ulusi wopangidwa, chiŵerengero cha mphamvu yake yonyowa ndi youma, mphamvu ya mbedza yachibale ndi mphamvu ya mfundo, kuchira kwa zotanuka ndi silika wa mabulosi.Chifukwa chake, magwiridwe antchito a ulusi wa acetate ndiye pafupi kwambiri ndi silika wa mabulosi mu ulusi wamankhwala.
Poyerekeza ndi mabulosi silika, triacetic asidi nsalu si wosakhwima, zopangidwa ndi zovala zake si zophweka makwinya, akhoza bwino kusunga Baibulo, bwino tsiku kusamalira ndi chisamaliro.
Silika ya mabulosi, yomwe imadziwika kuti "fiber queen", ngakhale imapumira pakhungu, yosalala komanso yofewa, yolemekezeka komanso yokongola, koma zofooka zake zikuwonekeranso, chisamaliro ndi kukonza kumakhala kovuta kwambiri, kuthamanga kwamtundu kumakhalanso kofewa kwa nsalu zachilengedwe. .
Kumvetsetsa ubwino ndi zovuta izi, mukhoza kusankha nsalu zawo malinga ndi zosowa zawo
Nthawi yotumiza: Aug-02-2022