▲Hydroxypropyl methyl cellulose (HPMC)he paura ma kore kakara, kore reka, kore paitini. I muri i te tino rewa i roto i te wai, hydroxypropyl methyl cellulose ka hanga he colloid viscous marama.
▲ Ko nga rauemi mata matua o te hydroxypropyl methyl cellulose (HPMC): te miro parakore, te methyl chloride, te propylene oxide, me etahi atu rauemi mata, te houra caustic, te waikawa, te toluene, te isopropanol, etc.
Te whakataurite o nga painga me nga huakore o te hydroxypropyl methyl cellulose:
1.Pure hydroxypropyl methyl cellulose HPMC he wetekina titiro, he iti te kiato rahi, me te tauine 0.3–0.4/ml.
He tino pai te rere o te HPMC me te taumaha ake, he rereke te ahua o te hua pono.
2.Pure hydroxypropyl methyl cellulose HPMC wairewa wai he maama, teitei te whakawhiti marama, te reiti pupuri wai> 97%.
He ahua paru te wairewa wai HPMC, he uaua ki te eke ki te 80%.
3.Ko te HPMC parakore kia kaua e hongi te haukini, te maaka me te waipiro.
I te nuinga o te wa ka hongi te HPMC i nga momo reka katoa, ahakoa karekau, ka taumaha.
4.Pure hydroxypropyl methyl cellulose HPMC paura he kiko i raro i te karu whakaata, i te karaihe whakanui ranei.
Ko te HPMC kua puremu ka kitea he totoka maramara, he tioata ranei i raro i te karu karu, i te karaihe whakanui ranei.
He aha nga waahanga hei tautuhi i nga painga me nga ngoikoretanga o te hydroxypropyl methyl cellulose?
1.tohu ma
Ahakoa kare e taea e te ma ma te whakatau he ngawari te whakamahi a HPMC, a mena ka taapirihia nga maaka ma i te wa o te mahi whakaputa, ka pa ki tona kounga. Engari, ko te nuinga o nga hua pai he pai te ma.
2.Te pai
Ko te pai o te HPMC he 80 mesh me te 100 mesh, me te pai ake o te pai, te tikanga, ka pai ake.
3.Whakawhitinga
Whakanohoiahydroxypropyl methyl cellulose (HPMC)ki roto i te wai kia hanga he colloid maramara, me te tirotiro i tana tukunga marama. Ko te teitei ake o te whakawhiti marama, ko te pai ake, e tohu ana he iti ake nga matū korekore i roto. He pai te uruhanga o nga reactors poutū, engari he kino ake te pai o nga reactors whakapae.
4.Tautanga
Ko te nui ake o te taumaha motuhake, ko te taumaha ake te pai ake. He nui te motuhake, te tikanga na te mea he tiketike te ihirangi o te roopu hydroxypropyl kei roto, he nui te ihirangi o te roopu hydroxypropyl, he pai ake te pupuri wai.
Wā tuku: Apr-25-2024