Kodi mumadziwa za nsalu za acetate?
Ulusi wa acetate, wopangidwa kuchokera ku acetic acid ndi cellulose kudzera mu esterification, ndi ulusi wopangidwa ndi anthu womwe umatengera kwambiri mikhalidwe yapamwamba ya silika.Ukadaulo wapamwamba wa nsaluwu umapanga nsalu yokhala ndi mitundu yowoneka bwino, yowoneka bwino, komanso yosalala komanso yabwino.Kapangidwe kake ka mankhwala ndi thupi kumapangitsa kuti ikhale yosunthika komanso yokhazikika pazinthu zosiyanasiyana.
Pankhani ya mankhwala, ulusi wa acetate umawonetsa kukana modabwitsa kwa alkaline ndi acidic, zomwe zimapangitsa kukhala chisankho champhamvu m'malo osiyanasiyana.Komabe, utoto wake umakhala wovuta kwambiri, chifukwa utoto wamba wa cellulose sugwirizana kwambiri ndi ulusi wa acetate, zomwe zimapangitsa kuti zikhale zovuta kuzidaya.
Maonekedwe a ulusi wa acetate amawonjezera kukopa kwake.Ndi kukhazikika kwabwino kwa kutentha, ulusi umatha kupirira kutentha mpaka 185 ° C usanafikire kutentha kwake kwa kusintha kwa galasi, ndi kuzungulira 310 ° C musanasungunuke.Ngakhale kuti imawonetsa kuchepa kochepa m'madzi otentha, chithandizo cha kutentha kwambiri chikhoza kukhudza mphamvu zake ndi gloss, zomwe zimafunika kusamala mosamala kuti zisunge kukhulupirika kwake.
Makamaka, ulusi wa acetate ulinso ndi kuthanuka kwabwino, monga silika ndi ubweya, zomwe zimawonjezera kusinthasintha kwake komanso kutonthoza.
Kumvetsetsa mawonekedwe apadera a ulusi wa acetate ndikofunikira pakukulitsa kuthekera kwake m'mafakitale osiyanasiyana, kuyambira mafashoni ndi nsalu mpaka kusefera ndi kupitilira apo.Kukhoza kwake kutsanzira mikhalidwe yapamwamba ya silika pamene ikupereka ubwino wosiyana ndi mankhwala ndi maonekedwe a thupi kumapangitsa kukhala chinthu chofunidwa kuti chigwiritsidwe ntchito zosiyanasiyana.Pamene ukadaulo ndi luso zikupitilira kupititsa patsogolo kupanga nsalu, ulusi wa acetate umakhala ngati umboni waluso komanso kusinthasintha kwa ulusi wopangidwa ndi anthu.
Nthawi yotumiza: Mar-20-2024