1. Nga ahuatanga o te hydroxyethyl cellulose
Ko tenei hua he ma, he kowhai marama ranei he hongi me te ngawari te rere o te paura, 40 mata reeti tatari ≥99%;te mahana marumaru: 135-140°C;kiato kitea: 0.35-0.61g/ml;te pāmahana pirau: 205-210°C;tere tahu He puhoi;pāmahana taurite: 23°C;6% i te 50% rh, 29% i te 84% rh.
He wairewa i roto i te wai matao me te wai wera, a, i te nuinga o te waa karekau i roto i te nuinga o nga whakarewa pararopi.Ka huri paku te pokey i te awhe o te uara PH 2-12, engari ka heke te pokey ki tua atu i tenei awhe.
2. Nga taonga nui
Ka rite ki te surfactant katote kore,hydroxyethyl cellulosekei a ia nga ahuatanga e whai ake nei hei taapiri atu ki te whakamatotoru, ki te whakatarewa, ki te here, ki te maanu, ki te hanga kiriata, ki te marara, ki te pupuri i te wai me te whakarato colloid tiaki:
1. He wairewa te HEC i roto i te wai wera, i te wai matao ranei, karekau e pupuhi i te wera nui, i te koropuputanga ranei, na te mea he maha nga momo whakarewatanga, nga ahuatanga pokey me te waiariki kore.
2. Karekau he katote, ka taea te noho tahi me te tini o etahi atu polymers wairewa-wairewa, surfactants, me nga tai.He tino pai rawa atu te whakamaarata colloidal mo nga otinga electrolyte tino kukū.
3. Ko te kaha o te pupuri i te wai e rua ake te teitei o te methyl cellulose, a he pai ake te whakahaere o te rere.
4. Ka whakatauritea ki te methyl cellulose me te hydroxypropyl methyl cellulose, kei a HEC te kaha marara kino rawa atu, engari ko te kaha o te kaha o te colloid tiaki.
3. Te whakamahinga o te hydroxyethyl cellulose
I te nuinga o te wa e whakamahia ana hei whakamaroke, hei whakamarumaru, hei whakapiri, hei whakapumau me nga taapiri mo te whakarite i nga whakaehunga, tiēre, hinu, hinu, horoi kanohi, suppositories me papa, ka whakamahia ano hoki hei peera hydrophilic, rauemi anga, Ka taea te whakamahi ki te whakarite matrix- patopato i nga whakaritenga tuku toimau, ka taea hoki te whakamahi hei whakapumau i te kai.
Wā tuku: Tihema-27-2022