Ka taea e te HPMC me te CMC ranunga
Methyl cellulosehe ma, he ma ranei he rite ki te paura, ki te paura ranei; Kakara, koretake. Ko tenei hua i roto i te pupuhi wai ki te otinga korero marama, iti ranei; He ngoikore i roto i te ethanol tino, chloroform or dishyl eter ranei. Ka tere te marara me te pupuhi i roto i te wai wera i te 80-90 ℃, ka tere te rewa i muri i te whakamahana. Ko te otinga wai ka tino pumau i te pāmahana o te rūma, ka taea te tipu i te pāmahana tiketike, ka taea e te kiri te huri me te otinga me te pāmahana.
He tino ngoikore, he wehewehe, he taapiri, he matotoru, he whakahekenga, te whakaheke i te wai me te hanganga kiriata, me te kore o te hinu. He tino kaha te kiriata, te ngawari me te maarama. Na te mea ehara i te mea-kore, ka taea te hototahi ki etahi atu emulsiverier, engari he maamaa, he kowhatu te tote, te konutai ma ranei, te konutai ma, te konutai ranei, te rahinga 0.5-0.7 g / cusimita cubic, tata te kakara, he tino,, hygroscopic. He ngawari ki te marara i te wai ki te otinga gelatous e tino marama ana, kaore i te itanol me etahi atu whakarewa.
I te wa e heke ana te pH o te otinga wai o te phurry i te wa e heke ana te pH. Ngawari te whakarewa i roto i te wai, te otinga oro; He tino pumau i roto i te otinga o te Alkaline, he ngawari ki te hydrolyze i roto i te keehi o te waikawa. I te wa e whai hua ana te utu o te ph 2-3, ka ua te ua, ka ua te ua i roto i te keehi o nga tote whakarewa multivalt. Ko te kōwhiringa o te gell miro, ko te methyl eter, i raro i nga ahuatanga o te alkaline na te waikawa me te whakarite.
Ko te whakarewa i roto i te wai me te nuinga o te polar C me te rahi o te waitanol, te prononol, te wai, te pupuhi i te wai makariri ki te otinga o te maeke ranei. Ko te otinga waimoana he mahinga o te papa, he maamaa me te whakatutukitanga o te mahi.HPMCkei a ia te taonga o te kiri wera. I muri i te whakawera, ka puta te otinga o te hua huawhenua, ka rewa i muri i te whakamahana. He rereke te pāmahana o te tipu o nga whakaritenga rereke.
Te wa tuku: Apr-25-2024