Te pūhui hauwaioraitiri (HEC)he tino wairewa tonu i roto i te wai i runga i te whānuitanga o te pāmahana, ahakoa i roto i ngā rohe pāmahana teitei kei reira ētahi atu etera cellulose kua whakarerekētia e te matū kore-ionic pērā i te methyl cellulose (MC) me te hydroxypropyl methyl cellulose (HpMC) e whakaatu ana i ngā tohu turbidity. Hei whakamārama i te take o te wairewatanga teitei o te HEC, i tirotirohia te whakawhirinakitanga pāmahana o te hanganga wai nH mō ia wae glucopyran i roto i ngā tauira HEC i runga i ngā awhe pāmahana e whai ake nei mai i te 10 ki te 70 °C mā te whakamahi i ngā inenga whānuitanga dielectric auau tino teitei tae atu ki te 50 GHz.
I roto i tēnei rangahau, i tirotirohia ngā tauira HEC mō te maha molar o ngā whakakapinga hydroxyethyl (MS) o ia waeine glucose pyran mai i te 1.3 ki te 3.6. I whakarewahia ngā tauira HEC katoa ki te wai i roto i te awhe pāmahana i tirotirohia, ā, kāore i whakaatuhia he pūwāhi turbidity. Ko te uara nH o ngā tauira HEC me te MS 1.3 he 14 i te 20 °C, ā, ka heke haere mārire i te pikinga o te pāmahana, ā, ka heke ki te 10 i te 70 °C. Ko te uara PH o te tauira HEC he nui ake i te uara nH matua iti rawa o te tata ki te 5. Me whakarewa ngā cellulose ethers pērā i te MC me te HpMC ki te wai, ahakoa i roto i te awhe pāmahana teitei.
Heoi, ka wairewahia e te wai ngā ngota HEC i roto i te whānuitanga o te pāmahana. He ngawari te whakawhirinakitanga pāmahana o te nH o ngā tauira HEC me te triglycol (ngā tauira matū o ngā whakakapinga HEC) ā, he rite tonu rāua tetahi ki tetahi. E whakaatu ana tēnei kitenga ko te whanonga wai/maroke o ngā tauira HEC e whakahaeretia ana e ō rātou rōpū whakakapinga. Ko te 3 he 14 i te 20 °C, ka heke mārire i te pikinga o te pāmahana, ā, ka heke ki te 10 i te 70 °C. He nui ake te uara nH o te tauira HEC i te uara nH tino iti rawa o te tata ki te 5. Me wairewa ngā etera cellulose pēnei i te MC me te HpMC ki te wai, ahakoa i roto i te whānuitanga pāmahana teitei. Heoi, ka wairewahia e te wai ngā ngota HEC i roto i te whānuitanga pāmahana whānui. He ngawari te whakawhirinakitanga pāmahana o te nH o ngā tauira HEC me te triglycol (ngā tauira matū o ngā whakakapinga HEC) ā, he rite tonu rāua tetahi ki tetahi.
E whakaatu kaha ana tēnei kitenga ko te whanonga wai/maroke o ngā tauira HEC e whakahaeretia ana e ō rātou rōpū whakakapi. Ko te 3 he 14 i te 20 °C, ka heke mārire i te pikinga o te pāmahana, ā, ka heke ki te 10 i te 70 °C. Ko te uara nH o te tauira HEC he nui ake i te uara nH tino iti o te tata ki te 5. Me whakarewa ngā etera cellulose pēnei i te MC me te HpMC ki te wai, ahakoa i roto i te awhe pāmahana teitei. Heoi, ka wairewa te wai i ngā ngota HEC i roto i te awhe pāmahana whānui. Ko te whakawhirinakitanga pāmahana o te nH oHECHe ngawari ngā tauira me te triglycol (ngā pūhui tauira o ngā whakakapinga HEC), ā, he rite tonu rāua tetahi ki tetahi. E whakaatu kaha ana tēnei kitenga ko te whanonga whakamakuku/maroke o ngā tauira HEC e whakahaeretia ana e ō rātou rōpū whakakapinga.
He mārama te nui ake o te uara nH o te tauira HEC i te uara nH iti rawa o te tata ki te 5. Me whakarewa ngā etera cellulose pēnei i te MC me te HpMC ki te wai, ahakoa i roto i te awhe pāmahana teitei. Heoi, ka wairewa te ngota HEC i roto i te awhe pāmahana whānui. He ngawari te whakawhirinakitanga pāmahana o te nH o ngā tauira HEC me te triglycol (ngā pūhui tauira o ngā whakakapinga HEC) ā, he rite tonu rāua tetahi ki tetahi. E whakaatu ana tēnei kitenga ko te whanonga wai/maroke o ngā tauira HEC e whakahaeretia ana e ō rātou rōpū whakakapinga. He mārama te nui ake o te uara nH o te tauira HEC i te uara nH iti rawa o te tata ki te 5. Me whakarewa ngā etera cellulose pēnei i te MC me te HpMC ki te wai, ahakoa i roto i te awhe pāmahana teitei. Heoi, ka wairewa te ngota HEC i roto i te awhe pāmahana whānui. He ngawari te whakawhirinakitanga pāmahana o te nH o ngā tauira HEC me te triglycol (ngā pūhui tauira o ngā whakakapinga HEC) ā, he rite tonu rāua tetahi ki tetahi.
E whakaatu ana tēnei kitenga ko te whanonga wai/maroke o ngā tauira HEC e whakahaeretia ana e ō rātou rōpū whakakapi. He wairewa-wai ngā ngota HEC i roto i te whānuitanga o te pāmahana. He ngawari te whakawhirinakitanga pāmahana o te nH o ngā tauira HEC me te triglycol (ngā pūhui tauira o ngā whakakapinga HEC) ā, he rite tonu rāua tetahi ki tetahi. E whakaatu ana tēnei kitenga ko te whanonga wai/maroke o ngā tauira HEC e whakahaeretia ana e ō rātou rōpū whakakapi.HECHe wairewa-wai ngā ngota i roto i te whānuitanga o te pāmahana. He ngawari te pānga o te nH ki te pāmahana o ngā tauira HEC me te triglycol (ngā tauira matū o ngā whakakapinga HEC) ā, he rite tonu rāua tetahi ki tetahi. E whakaatu kaha ana tēnei kitenga ko te whanonga wai/maroke o ngā tauira HEC e whakahaeretia ana e ō rātou rōpū whakakapinga.
Wā tuku: Paenga-whāwhā-25-2024