01. Te rerekētanga i waenga i te hydroxypropyl methyl rūpahu me te hydroxypropyl methyl kounga teitei
Āhua: Te āhua nei he tino ōrite rawa te māngaro parakore HPCM, i waenga i te 0.3 me te 0.4 g/ml. Ka herea te amylum ki te māngaro, nō reira he wai te HPCM, ā, he iti ake te ahotea i ngā rongoā whakamātao noa.
Ngā āhuatanga: māngaro kī tonu i te māngaro, paura hpm, muka i raro i te karuārai, i te karāhe whakanui rānei, HPCM he momo māngaro ka taea te whakahaere i te māngaro, te māngaro rānei me ngā pīni.
Kakara: Kāore e hongi te haukini, te māngaro me te waipiro i roto i te hydroxypropyl methylcellulose HPMC parakore; ka hongi te hydroxypropyl methylcellulose HPMC kua whakaranua i ngā momo kakara katoa, ahakoa he koretake, ka ngoikore ake te ahua.
Wairewa wai: he mārama te wairewa wai HPMC methylcellulose demethoxypropyl brinzolamide, he māmā te pupuri wai ≥ 97%; he pōuri ake te cellulose wairewa kua waimehatia, he pōuri ake te cellulose waimeha HPMC, he iti noa te tere pupuri wai e eke ki te 80%.
02. Ko te tiakitanga o te methyl cellulose i te pāmahana teitei he tohu nui hei whakatau i te kounga o te methyl cellulose ether. Ko ngā āhuatanga pēnei i te pāmahana o te hau, te pāmahana o te hau me te tere o te hau ka pā ki te hurihuri o te paru sima me ngā hua gypsum. Nō reira, mā te tāpiri i te nui o ngā hua HPMC i ngā wā rerekē, he rerekētanga kei roto i te pai o te penapena wai. I roto i te tukanga mahi motuhake, ka taea te whakatika i te pānga o te serosa whakamakuku mā te whakaiti i te nui o te HPMC i tāpirihia. Ka taea e te hydroxypropyl methylcellulose HPMC kounga teitei te whakaoti pai i te raruraru o te pupuri wai i te pāmahana teitei.
Ka taea te tohatoha ōrite me te whai hua i te methyl cellulose kounga teitei i roto i ngā hua moata sima me te parai, ka hanga he kiriata totoka katoa, ka tukuna mārire mai i te paparanga turanga ka hanga he tauhohenga hydrophilic me ngā rauemi miro kore-organika, kia mau ai te kaha me te pakari. He kounga me te ōrite te methyl propoxylate o te HPMC cellulose, ā, he ōrite te hāora o ngā rōpū ethyl bromide me te waikawa propionic i te mekameka cellulose ngota, e whakapai ake ana i te hononga hāora me te hauwai o ia ngota matua o te hydroxyl me te ether. Ka taea e te wai iti te huri i te wai kore utu hei wai tiaki hiako, kia pai ai te whakahaere i te mimiti wai, te whakaputa wera, me te makuku wai nui.
Nā te nui o te pāmahana o te hanganga i te raumati, kia tutuki ai te hua o te penapena wai, me tāpiri ngā hua HPMC kounga teitei e ai ki te tauira, ki te kore ka puta he raruraru pēnei i te maroke rawa, te ngoikore o te kaha, te pakaru, te ru mangere me te hekenga o te mahi, ā, ka piki ake te uaua o te hanganga mō ngā kaimahi. I a koe e whakaiti ana i te pāmahana, ka taea te whakaiti haere i te nui o te HPMC e tāpirihia ana, ā, ka whiwhi i te hua penapena wai ōrite.
Wā tuku: Paenga-whāwhā-21-2023