Focus on Cellulose ethers

Te rereketanga i waenga i te hypromellose inamata me te hypromellose wairewa wera

Te rereketanga i waenga i te hypromellose inamata me te hypromellose wairewa wera

I tenei wa, ko te hydroxypropyl methylcellulose i roto i te maakete o-whare ka wehewehea ki te momo wera-whakarewa (e kiia ana ko te momo puhoi-whakarewa) me te momo-whakarewa tonu, a ko te momo wera-whakarewa ko te momo tino tikanga me te momo tino whakamahia o te cellulose.

Ko te wera-rewa (te-whakarewa) hydroxypropyl methylcellulose HPMC kaore ano kia rongoatia ki te glyoxal. Mena he nui te nui o te glyoxal, ka tere te marara, engari ka piki haere te pokey, a mena he iti te nui, ka puta ke te ahua. Ka piri tahi te Hydroxypropyl methylcellulose HPMC ina pa ana ki te wai matao (engari ka memeha haere ano tenei ahuatanga, engari he roa te waa.), engari ka tere te parare ki roto i te wai i roto i te wai wera tae noa ki te ngaro katoa i roto i te wai, ka piki ake tona poiketa. āta ka heke haere te pāmahana tae noa ki te huri hei wē māramarama. He rite te ahua o tona ahua ki te memeha o te konutai carboxymethyl cellulose te pokey teitei. Ka memeha te paura cellulose i waho o te wai, ka pokarekare, ka takai i te cellulose ki roto kare ano i pa ki te wai, engari ka memeha haere hoki tenei ahuatanga, engari ka roa te waa.

Ko te hydroxypropyl methylcellulose HPMC te momo inamata he rongoa-mata ki te glyoxal. Ka tere te marara i roto i te wai matao, engari kaore e tino memeha. He wa roa kia piki ake tona poiketa, na te mea ka marara noa i roto i te wai i te timatanga, ehara i te mea tino nui. Mo te whakakorenga o runga ake nei, ka tae te pokey ki te uara teitei i roto i te wha tekau meneti. Ka piki ake te viscosity, ka marama, ka marama te wairewa wai, koinei te tino memeha. Ko te hydroxypropyl methylcellulose HPMC inamata ka whakamahia i roto i tetahi umanga motuhake, kaore e konatunatua ki te paura maroke, i te wa ranei e tika ana kia rewa me te wai wera kaore e taea te whakamahi na nga tikanga taputapu me etahi atu take, te momo o te hypromellose te otinga o te Cellulose. ki taua raruraru uaua.


Wā tuku: Mei-09-2023
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