Ko te Methylcellulose he ma, he ma, he kirikiri, he paura kirikiri ranei;kore kakara me te reka.Ka pupuhi tenei hua ki roto i te wairewa colloidal maramara, paku kerekere ranei i roto i te wai;kare e rewa i roto i te ewaro tino, chloroform, etera ranei.Kia tere te marara me te pupuhi i roto i te wai wera i te 80-90°C, ka tere te memeha i muri i te whakamatao.He tino pumau te wairewa wai i te pāmahana rūma, ka taea te reera i te pāmahana teitei, ka huri te reera me te otinga me te pāmahana.
He pai rawa te makuku, te whakamararatanga, te whakapiri, te matotoru, te emulsification, te pupuri wai me nga taonga hanga kiriata, me te koretake ki te hinu.Ko te kiriata i hangaia he tino pakari, he ngawari me te marama.No te mea he kore-katote, ka taea te hototahi ki etahi atu emulsifiers, engari he ngawari ki te tote, ka pumau te otinga ki te awhe o PH2-12.Ko te konutai Carboxymethyl Cellulose Ko tenei hua ko te tote konutai o te cellulose carboxymethyl ether, he etera cellulose anionic, he ma, he miraka ma ranei te paura kirikiri ma, he kirikiri ranei, he 0.5-0.7 g/cm3 te kiato, tata kore kakara me te kore reka , me te hygroscopicity.He ngawari te marara ki roto i te wai hei hanga i te wairewa colloidal maramara, kare e rewa i roto i nga whakarewa waro penei i te waiwaro.
Ko te pH o te wairewa wai he 6.5-8.5.A, no te te pH he> 10 ranei <5, ka tino heke te pokey o te kāpia, me te pai te mahi i te mea ko te pH 7. E mau ana ki te wera, ka piki tere te pokey i raro i te 20 ° C, a ka rere ke i te 45. °C.Ko te whakamahana mo te wa roa i runga ake i te 80°C ka taea te whakakore i te colloid me te tino whakaiti i te viscosity me te mahi.He ngawari ki te wairewa i roto i te wai, a he marama te otinga;he tino pumau i roto i te wairewa kawakore, engari ka ngawari te whakamaarama i te wa e pa ana ki te waikawa, a ka heke i te wa e 2-3 te uara pH, ka tauhohe ano ki nga tote whakarewa polyvalent.Ko te Hydroxypropyl methylcellulose, e mohiotia ana ano ko te hypromellose me te cellulose hydroxypropyl methyl ether, he mea hanga mai i te miro miro tino parakore hei rauemi mata, he mea whakahiato i raro i nga tikanga kawakore.
Ka whakarewahia ki te wai me te nuinga o te polar c me nga wahanga e tika ana o te waiwaro/wai, propanol/wai, dichloroethane, me etahi atu, kare e rewa ki te etera, te acetone, te waihano tino, ka pupuhi ki roto ki te colloid marama, paku kapua ranei i roto i te wairewa wai makariri.Ko te wairewa wai he mahi mata, he tino marama me te mahi pumau.Kei a HPMC te taonga o te waiariki waiariki.Ka whakamahanahia te wairewa wai hua ki te hanga i te reera ka heke, ka memeha i muri i te whakamatao.He rereke te pāmahana o te reera o nga whakaritenga rereke.
Wā tuku: Feb-24-2023