Hanga motuhake hydroxypropyl methyl cellulose ki te karo makuku infiltration ki te taiepa, ka waiho i te nui tika o te makuku e taea te noho i roto i te kumete ciment hua mahi pai i roto i te wai, me te mahi o te hydroxypropyl methyl cellulose i roto i te kumete ka taea e rite ki te pokey, te teitei ake te pokey o te hydroxypropyl methyl cellulose pupuri wai ka pai ake.
Kia tiketike rawa te makuku o te hydroxypropyl methyl cellulose, ka heke te pupuri wai o te hydroxypropyl methyl cellulose, a ka arahi tika ki te hanganga o te hydroxypropyl methyl cellulose. Kei te mohio ano matou ki nga mea ka ngawari ake te mahi he, me noho hou tonu, ka whiwhi hua ohorere.
Ko te tino pokey he tohu nui o te hydroxypropyl methyl cellulose. Ko nga tikanga ine noa ko te ine ine pokey hurihanga, te ine pokey capillary me te ine pokey taka.
I mua, ko te hydroxypropyl methyl cellulose i whakatauhia e te inenga pokey capillary, ma te whakamahi i te Uhnscher viscometer. Ko te otinga ine he wairewa wai o te 2, a ko te tauira: V=Kdt. Ko te V te pokey i roto i te hēkona, ko te K te pūmau o te viscometer, ko D te kiato i te pāmahana pūmau, ko T te wa e haere ai mai i runga ki raro o te viscometer i roto i te hēkona. He uaua ake tenei huarahi mahi, mena he rauemi kore e whakarewahia, he ngawari ki te mahi he, he uaua ki te tautuhi i te kounga o te hydroxypropyl methylcellulose.
Ko te raruraru o te hanga stratification kāpia he raruraru nui e pa ana ki nga kaihoko. Tuatahi o nga mea katoa, me whakaaro te raruraru o nga rauemi mata mo te hanga stratification kāpia. Ko te take matua mo te hanga kapia ko te kore hototahi i waenga i te waipiro polyvinyl (PVA) me te hydroxypropyl methylcellulose (HPMC). Ko te take tuarua he kore e ranea te wa ranu; He he ano hoki te hanga kāpia thickening mahi he kore pai.
I roto i te hanga kapia, me whakamahi tonu te hydroxypropyl methylcellulose (HPMC) na te mea ka marara noa te HPMC ki te wai, kaore e tino memeha. Tata ki te 2 meneti, ka piki haere te pokey o te wē, ka puta he colloid karekau marama.
Hua wairewa wera, i roto i te wai matao, e taea te tere marara i roto i te wai wera, ngaro i roto i te wai wera, ka taka te pāmahana ki tetahi pāmahana, pokey puta āta, tae noa ki te hanganga o te colloid kerekere marama. Hydroxypropyl methylcellulose (HPMC) i roto i te kāpia whare kua tūtohutia mo te 2-4kg.
Hydroxypropyl methyl cellulose (HPMC) i roto i te whare kapia te pumau matū, koriri, he pai te paanga o te pupuri wai, a kaore e pa ki te huringa PH, ka taea te whakamahi i te viscosity mai i te 100 000 S - 200 000 S. Engari i roto i te whakaputanga ehara i te mea teitei ake te pai ake o te pokey, te pokey me te kaha o te here he taurite, ko te teitei ake o te pokey, he iti ake te kaha, ko te tikanga he tika te 100,000S viscosity.
Te wa tuku: Sep-16-2022