Bayyanar danko shine muhimmin alamar hydroxypropyl methylcellulose, hanyoyin aunawa da aka saba amfani da su sun haɗa da viscometry na juyawa, viscometry capillary da drop viscometry.
A baya an auna Hydroxypropyl methylcellulose ta amfani da viscometry capillary ta amfani da viscometer Ubbelohde. Yawanci maganin auna shine maganin ruwa na 2, dabarar ita ce: V = Kdt. V yana wakiltar danko, K shine akai-akai na viscometer, d yana wakiltar yawa a yanayin zafi akai-akai, t yana nufin lokaci daga sama zuwa ƙasa na viscometer, naúrar ita ce ta biyu, wannan hanya yana da wuyar yin aiki kuma shi yana da sauƙin haifar da Ba daidai ba, kuma yana da wuya a bambance ingancin hydroxypropyl methylcellulose.
Matsalar delamination na ginin gine-gine shine babban matsala da abokan ciniki ke fuskanta. Da farko, ya kamata a yi la'akari da matsalar albarkatun kasa don ginin manne Layer. Babban dalilin ginin manne Layer shine cewa polyvinyl barasa (PVA) da hydroxypropyl methylcellulose (HPMC) ba su dace ba. Dalili na biyu shi ne cewa lokacin motsa jiki bai isa ba, kuma aikin kauri na manne ginin ba shi da kyau.
Hydroxypropyl methylcellulose (HPMC) na wannan sabon abu yana buƙatar amfani da shi wajen ginin manne, saboda hydroxypropyl methylcellulose (HPMC) yana tarwatse a cikin ruwa kuma ba zai iya narkewa da gaske ba, kuma dankon ruwan yana ƙaruwa a hankali cikin kusan mintuna 2, yana haifar da Transparent viscous colloid. .
Lokacin da aka haɗa kayan zafi mai zafi a cikin ruwan sanyi, za su yi sauri su watse a cikin ruwan zafi kuma su ɓace cikin ruwan zafi. Lokacin da zafin jiki ya faɗi zuwa takamaiman zafin jiki, danƙon zai bayyana a hankali har sai an sami colloid mai ɗanɗano mai haske. Hydroxypropyl a cikin mannen gini Adadin da aka ba da shawarar na HPMC shine 2-4kg.
Hydroxypropyl methylcellulose (HPMC) yana da ingantaccen kaddarorin sinadarai, juriya na mildew da kuma riƙe ruwa mai kyau a cikin mannen gini, kuma canje-canjen pH ba ya shafar su. Ana iya amfani da shi daga 100,000 S zuwa 200,000 S, amma mafi girma da danko a cikin samarwa, mafi kyau, kuma danko yana da daidaituwa ga ƙarfin haɗin gwiwa. Mafi girman danko, ƙananan ƙarfin, gabaɗaya danko na 100,000 S ya dace.
Lokacin aikawa: Afrilu-20-2023