Kodi kupanga methylcellulose ndi chiyani?

Kodi gawo la methyl cellulose ether pamatope a ufa wa ufa ndi chiyani?
Yankho: Methyl hydrothyl cellulose ether (mhec) ndi methyl hydroxpyl cellulose ether ethelose ether.

Mu gawo la matope a ufa, methyl cellulose ether ether ndi chinthu chofunikira chosinthika cha matope a ufa wowuma monga matope a glasive, matope a matope, utsi wa matope komanso nkhani zokopa. M'malo osiyanasiyana owuma a ufa, methyl cellulose ether amagwiritsa ntchito gawo la kusungidwa kwamadzi ndikukula.

Kodi kupanga methylcellulose ndi chiyani?
Yankho: Choyamba, cellulose zimaphwanyidwa, kenako imanyengedwa komanso yokometsedwa ndi koloko ya caustic. Onjezani Olefin oxide (monga ethylene oxide kapena propylen oxide) ndi methyl chloride kuti mukwaniritse. Pomaliza, kutsuka madzi ndi chiyeretso kumachitika kuti zitheke kukhala ufa woyera. Ufa uwu, makamaka yankho lake la matenda, lili ndi zinthu zosangalatsa. Cellulose ether yomwe imagwiritsidwa ntchito mu makampani omanga ndi methyl hydrothyl cellulose ethel ethelose ethelose ether kapena methyl hydrobropyl hydroxpyl. Izi zimachita gawo lofunikira kwambiri m'munda wamatontho owuma ufa. Udindo Wofunika.

Kodi madzi osungira a methyl cellulose ether (MC)?
Yankho: Mulingo wa madzi ndi chimodzi mwazomwe zimayesedwa kuti muyezere methyl cellulose ether ether, makamaka mu matope opangira matope a simenti ndi gypsum. Kusungidwa kwamadzi kumatha kusokoneza chodabwitsa cha kuwonongeka kwamphamvu komanso kusokonekera chifukwa chowuma kwambiri komanso kuunika kosakwanira. Kusunga kwamadzi koyenera kwa methyl cellulose ether kumatentha kwambiri ndi chimodzi mwazomwe zimapangitsa kuti pathe kusiyanasiyana. Nthawi zambiri, madzi osungira amadzi omwe ali celylose ambiri cely edzors amachepetsa ndi kuchuluka kwa kutentha. Kutentha kukakwera 40 ° C, kusunga kwamadzi kwa ma medyl cellyl cellose, komwe ndikofunika kwambiri m'malo otentha komanso owuma. Ndipo ntchito yopyapse-yopyapyala pa mbali yadzuwa m'chilimwe idzakhudzidwa kwambiri. Komabe, kupanga chifukwa chosowa madzi osasungidwa kudzera mu Mlingo waukulu kumayambitsa mafayilo akuluakulu chifukwa cha kuchuluka kwa mlingo waukulu, zomwe zimayambitsa zovuta zomanga.

Kusunga kwamadzi ndikofunikira kuti muthe kukonza masinthidwe amchere. Mothandizidwa ndi cellulose ether, chinyontho chimamasulidwa pang'onopang'ono mpaka nthawi yayitali, ndikuwonetsetsa kuti simentist (simenti kapena gypsum) imakhala ndi nthawi yambiri yolimbana ndi madzi.