1. Te pāmahana o te tiēre (0.2% otinga) 50-90°C.
2. Ka wairewa ki te wai, ā, ko te nuinga o te matū ka taea te whakamahi hei matū porotaka, ā, he pai te ōwehenga o te etanoru/wai, te propanol/wai, te dichloroethane, me ētahi atu. Kāore e wairewa ki te etera, te acetone, te etanoru tino, ā, ka pupuhi hei mārama, hei pōuri rānei i roto i te wai matao. He nui te mahi a te wai, he mārama, he pumau hoki te mahi.
3. Kei te HPMC te āhuatanga o te whakapūmau wera. Ka whakamahanahia te wairewa hua hei hanga i te pūpū, ka puta he wai, kātahi ka rewa i muri i te whakamatao. He rerekē te pāmahana whakapūmau o ngā whakaritenga rerekē. Ka rerekē te wairewatanga i runga i te matotoru. Ko te iti o te matotoru, ko te nui ake o te wairewatanga. He rerekē ngā āhuatanga o ngā whakaritenga rerekē o te HPMC, ā, kāore te uara pH e pāngia e te rewa o te HPMC i roto i te wai.
4. Rahi matūriki: Ko te tere paahi 100 mata he nui ake i te 98.5%. Kiato papatipu: 0.25-0.70g/ (tata ki te 0.4g/), taumaha motuhake 1.26-1.31. Te pāmahana whakarerekētanga tae: 180-200°C, te pāmahana whakapūngao: 280-300°C. Ko te uara methoxyl kei waenganui i te 19.0% ki te 30.0%, ā, ko te uara hydroxypropyl kei waenganui i te 4% ki te 12%. Te matotoru (22°C, 2%) 5～200000mPa .s. Te pāmahana gel (0.2%) 50-90°C
5. Kei te HPMC ngā āhuatanga o te kaha ki te whakamātotoru, te tuku tote, te pumau o te PH, te pupuri wai, te pumau o ngā āhuatanga, te āhuatanga hanga kiriata pai rawa atu, te whānuitanga o te ātete ki ngā whākōkī, te marara me te piripono.
Wā tuku: 17 Paenga-whāwhā 2023