Ko te whakawhiti mārama o te hydroxypropyl methylcellulose te mea nui e pāngia ana e ēnei āhuatanga e whai ake nei:
1. Te kounga o ngā rauemi mata.
Tuarua, te pānga o te whakapūkara.
3. Te ōwehenga tukanga
4. Te ōwehenga o te whakarewa
5. Te pānga o te whakakorenga
Ko ētahi hua he kapua, pērā i te miraka i muri i te whakarewanga, ko ētahi he mā te miraka, ko ētahi he kōwhai, ko ētahi he mārama, he mārama hoki… Hei whakaoti i te raruraru, whakatikatikahia mai i ngā āhuatanga e whai ake nei. I ētahi wā ka pā kino te waikawa acetic ki te whakawhiti mārama. He pai ake te whakamahi i te waikawa acetic i muri i te whakakōkī. Ko te pānga nui ko te rite o te whakaoho o te tauhohenga me te pumau o te ōwehenga pūnaha (he makuku ētahi rauemi, ā, he kore pumau te ihirangi, pērā i te whakarewa e whakamahia ana mō te hangarua). Inaa, he maha ngā āhuatanga e pā ana. Mena he pumau te taputapu, ā, he pai te whakangungu o ngā kaiwhakahaere, me tino pumau te whakaputanga. Kāore te whakawhiti mārama e neke ake i te awhe o te ±2%, ā, me whakahaere pai te ōritetanga o te whakakapinga o ngā rōpū whakakapinga. Engari i te ōritetanga, he pai te whakawhiti mārama.
Ngā Take e Pā Ana ki te Matotoru o te Hydroxypropyl Methyl Cellulose
Kāore e taea e te hydroxypropyl methylcellulose matotoru-teitei te whakaputa i te cellulose tino teitei mā te whakakorekore me te whakakapinga hauota anake i roto i te mahi hanga. I te nuinga o te wā, kāore e taea te whakahaere i te hanga o te cellulose matotoru-teitei i Haina. Heoi, ki te taea te tāuta i tētahi taputapu ine hāora iti ki roto i te ipu, ka taea te whakahaere i te hanga o tōna matotoru mā te hangahanga.
i hangaia. Hei tāpiri, i runga i te tere o te whakakapinga o te hauota, he ngāwari te whakaputa hua matotoru-teitei ahakoa te āhua o te pūnaha. He mea nui anō hoki te nui o te whakapūhui o te miro kua parakore. Ki te kore e mahi, me mahi mā te hononga hydrophobic. He maha ngā kaihoko hononga i tēnei rohe i Haina. He nui te awe o te momo kaihoko hononga hei whiriwhiri ki te mahi o te hua whakamutunga. Ko te hāora toenga i roto i te tauhohenga ka pakaru te cellulose me te hekenga o te taumaha ngota, engari he iti noa te hāora toenga, mena ka honoa anō ngā ngota pakaru, ehara i te mea uaua ki te hanga matotoru teitei. Heoi, he nui te pānga o te tere kukū ki te ihirangi o te hydroxypropyl. Ko ētahi wheketere e hiahia ana ki te whakaiti i te utu me te utu, engari kāore e pai ki te whakanui ake i te ihirangi o te hydroxypropyl, nō reira kāore e taea e te kounga te eke ki te taumata o ngā hua ke rite. He hononga nui te tere pupuri wai o te hua ki te hydroxypropyl, engari mō te tukanga tauhohenga katoa, ka whakatau hoki i tōna tere pupuri wai, te pānga alkaliization, te ōwehenga o te methyl chloride me te propylene oxide, te kukū alkali me te pupuri wai. Ko te ōwehenga ki te miro parakore e whakatau ana i te mahi a te hua.
Wā tuku: Mei-23-2023