Te tūnga whanaketanga o te hangarau whakaputa HPMC me te tukanga o te hydroxypropyl methyl cellulose i Haina

Te tūnga whanaketanga o te hangarau whakaputa HPMC me te tukanga o te hydroxypropyl methyl cellulose i Haina

Hydroxypropyl methyl celluloseHPMCKo te mahi whakaputa ā-rohe o nāianei e aro nui ana ki te hangarau tikanga āhua wai, e tohuhia ana tēnei hangarau e te wāhanga rangahau o te umanga matū Wuxi i te tekau tau atu i 1970, ko ngā whakatutukitanga rangahau i runga i te whakatairanga, ko te taketake ko te tauhohenga etherification tikanga āhua hau, nā te mea kāore ngā taputapu i urutau ki tō tātou whenua, kātahi ka mahi i te tauhohenga etherification tikanga āhua wai. Tae noa ki tēnei wā, ko te huarahi tukanga tauhohenga etherification wāhanga wai ōwehenga teitei te tukanga whakaputa matua o ētahi kaihanga cellulose ether rongonui.

Ko te hanga HPMC hydroxypropyl methyl cellulose ā-whare e whakamahi ana i te miro kua whakapaia hei rauemi mata (kua tīmata ētahi kaihanga ki te whakamahi i te penupenu rakau), ā, mā te huri huri ā-whare, mā te whakamahi tika rānei i te whakahāngai miro kua whakapaia, te whakaeterōtanga mā te whakamahi i te whakarewa rauropi rua-whakaranu, te tauhohenga i roto i te tauhohenga poutū. Ko te tukanga purenga e whakamahi ana i tētahi tukanga wā-poto e tangohia ai te whakarewa rauropi i roto i te tauhohenga, ā, ka purea te hua mata mā roto i ētahi horoinga me te whakamaroke mā roto i ngā kaihoroi me ngā centrifuges. Ko te tukatuka hua kua oti me te granulation wā-poto, i raro i te tikanga whakamahana (tērā anō te kaihanga kāore he granulation), te whakamaroke me te kuru i te tikanga tuku iho, ko te nuinga o te tukatuka motuhake he whakaroa noa i te wā whakamakuku o te hua (tere te memeha) te tukatuka me te kore harore hei ārai me te tukatuka tohatoha, ka whakamahia te tikanga tākai ā-ringa.

Ko ngā painga o te tikanga wāhanga wai e whai ake nei: he iti te pēhanga ā-roto o te taputapu tukanga tauhohenga, he iti te kaha o te pēhanga taputapu, he iti te mōrearea; I muri i te whakakī ki te lye,heruroKa taea te whakawhanui katoa me te whakapūmau i te kawakawa. He pai ake te urunga me te pupuhi o te cellulose ki te Lye. He iti te tauhohenga etherification, me te pupuhi ōrite o te cellulose kawakawa, nō reira he ngāwari te whakahaere i te kounga o te hua, ka taea te whiwhi i te tohu whakakapinga me te matotoru kia ōrite ake ai ngā hua, ā, he ngāwari hoki te whakakapi i ngā momo.

Heoi anō, kei tēnei tukanga anō hoki ēnei ngoikoretanga: kāore i te rahi rawa te tauhohenga, ā, nā ngā herenga tatauranga ka iti te kaha whakaputa, hei whakapai ake i te putanga, me whakanui ake te maha o ngā tauhohenga; me nui ake ngā taputapu mō ngā hua mata kua parakoretia, kua purea hoki, me uaua te mahi, me kaha te mahi; nā te mea kāore he maimoatanga ārai-haruru me te matū, ka pumau te matotoru o te hua, ā, ka pāngia ngā utu whakaputa; te takai ā-ringa, te kaha o te mahi, me nui te utu mahi; he iti ake te taumata aunoa o te whakahaere tauhohenga i tērā o te tukanga hau, nō reira he iti noa te tika o te whakahaere. Ki te whakatauritea ki te tukanga hau, me whai pūnaha whakaora whakarewa uaua.

Me te whakapai ake i te hydroxypropyl methyl cellulose o te whareHPMChangarau whakaputa, mā te auahatanga motuhake tonu, kua whanakehia te tikanga wāhanga wai nui o ētahi umanga mā te tere me ngā tikanga, ā, he āhuatanga hangarau anō tōna. Ka whakamahia e te matū Anxin te tukanga whakaputa HPMC taketake, ehara i te mea he tika te tukanga whakaputa anake, he tika, he pono hoki ngā tawhā whakahaere mahi, he whakamahinga katoa me te tika o ngā rauemi mata me ētahi atu āhuatanga, ā, he ōrite te taumata whakakapinga hua, he tino tika te tauhohenga, he pai te māramatanga o te otinga, ā, i te wa ano ka whakarite i te pumau o te kounga hua. Kua hurihia aunoa te raina whakaputa HPMC o ētahi umanga, kia tutuki ai ngā whakaritenga whakahaere aunoa DCS a te taputapu, ka taea te whakamahi i ngā rauemi tae atu ki te wai, ngā rauemi mata totoka hei ine tika me te tāpiri i te pūnaha DCS, ko te whakahaere pāmahana me te pēhanga i roto i te tukanga tauhohenga katoa kua whakatinanahia te mana aunoa DCS me te aroturuki mamao. I runga i te whaihua, te pono, te pumau me te haumaru o te whakaputa, he mārama te whakapai ake i te aratau whakaputa tuku iho, e kore e whakaora i te kaha tangata anake, e whakaiti ana i te kaha o te mahi, engari ka whakapai ake hoki i te taiao whakahaere i te papaanga.