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 tatou ki nga mea ka ngawari ake te mahi he, me pupuri tonu tatou i nga wa katoa, 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 ko te kore e ranea te wa ranu; He he ano hoki te hanga kāpia thickening mahi e kore e 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