Hydroxypronylmethylcylsellose (HPMC) iri kuwana yakakurumbira muindasitiri yekuvaka nekuda kweiyo yakanakisa mvura yekuchengetwa kwemvura. HPMC ndeye isiri-ionic, mvura-soluble cellulose ether, iyo inoshandiswa zvakanyanya mumaindasitiri akasiyana siyana. Mukuvaka, zvinowanzoshandiswa sediki, binder uye nemvura-yekuchengetedza mumiririri mune zvigadzirwa zvemukati uye mongwe. Iyo yakajeka yeHPMC zvakare ine chekuita nezvokuita kwayo kwemvura yekuchengetedza, iyo yatinozoongorora muchinyorwa chino.
Kutanga, zvakakosha kuti unzwisise izvo Hpmc ndoshanda uye kuti zvinoshanda sei. HPMC ndeyekubva kune cellulose, polymer yakasikwa inotorwa kubva kune huni uye chirimwa. HPMC inogadzirwa nemakemikari kugadzirisa cellulose ne proculose oxide uye methyl chloride, iyo inowedzera hydroxypropropropropropyl uye methyl mapoka kune cellulose molecule. Izvi zvinoshandurwa zvinoita kuti HPMC ive yakawanda mumvura uye ichipa izvo zvakananga zvivakwa zvakadai sekuremerwa, emulsification uye kuchengetwa kwemvura.
Iyo yekuchengetwa kwemvura yeHPMC inonyanya kukosha mune yekuvaka indasitiri, uko kudzora unyoro kunotsoropodza. Kana HPMC yakawedzerwa kune zvigadzirwa zvemitambo kana dhaka, inoumba firimu rakatenderedza nzvimbo yeiyo simenti, kuderedza kupinda kwemvura. Iyo firimu inobatsira zvakare kuderedza kubuda kwemvura kubva pamutsanganiswa, ichipa iyo siment nguva yekufungidzira. Nekuda kweizvozvo, zvinhu zvekumisikidza uye monganda zvinoramba zvakanyoroveswa kwenguva yakareba, zvichivabvumira kuporesa zvakanaka uye kuwana simba rakanyanya.
Iyo yakajeka yeHPMC inoita basa rakakosha mukuita kwayo kwemvura. Kazhinji kutaura, iyo yakanaka iyo HPMC zvikamu, zviri nani kuchengetedza kwemvura. Izvi zvinodaro nekuti zvidiki zvidiki zvine nzvimbo yakakura pamusoro, inovatendera kuti vagadzire iyo firimu rakapetwa kutenderedza simenti. Iyo firimu inobatsira kugadzira chipinganidzo pakati peiyo simende nemvura, kudzikisira kupinza kwemvura mumusanganiswa. Nekuda kweizvozvo, musanganiswa unogara wakanyorovera, uchipa nguva yakawanda yeiyo simende kuti iite hydrate uye durari kurapa.
Asi zvakakodzera kucherechedza kuti iyo yakajeka yeHPMC haifanire kuve iyo chete yekufunga kana ichisarudza mvura inochengetedza mumiriri. Zvimwe zvinhu zvakadai se commenti rudzi, iyo yemvura-simende ratio, tembiricha uye humidity inokanganisa zvakare iyo yekuchengetwa kwemvura yeHPMC. Naizvozvo, zvakakosha kusarudza iyo HPMC chigadzirwa yakakodzera kune chaiyo application uye shandisa nharaunda.
Mukupfupikisa, pane zvakawanda zvakanakira kushandisa HPMC semvura inochengetedza mumiririri mune zvemasimusi zvinhu uye motsi. Zvivakwa zvaro zvemvura zvinovimbisa kuti musanganiswa unoramba wakanyorodzwazve kwenguva yakareba, uchipa nguva yakawanda yeiyo simende kuti urege uye durwe kuporesa. Iyo yakajeka yeHPMC chinhu chakakosha kukanganisa mari yekuchengetwa kwemvura yayo, iyo yakanaka zvidimbu, zviri nani kuita. Nekudaro, zvimwe zvinhu zvakadai seyorment mhando, mvura-yemvura, tembiricha uye humidity inofanirwawo kutariswa kana ichisarudza chigadzirwa cheHPMC. Zvakawanda, uchishandisa HPMC inzira yakanaka kwazvo yekuvandudza mashandiro uye huwandu hwezvekushandisa kwemasendimita uye monganda mune yekuvaka indasitiri.
Kutumira Nguva: Aug-16-2023