Ko te Hydroxypropyl methylcellulose (HPMC), he mea hanga noa i roto i te cellulose, e whakamahia whānuitia ana i roto i te hanga, i ngā rongoā, i te kai, i ngā matū o ia rā me ētahi atu ahumahi. Ko te kounga o te HPMC ka aromatawaihia i runga i ngā āhuatanga ā-tinana me te matū, te mahi mahi me te pānga whakamahinga.
1. Te āhua me te tae
He paura, he kirikiri rānei te HPMC, he mā, he mā-parauri rānei. Mēnā he nui te panoni o te tae, pērā i te kōwhai, te hina, me ētahi atu, tera pea kāore i te tino parakore, kua poke rānei. Hei tāpiri, ko te ōritetanga o te rahi o te matūriki e whakaata ana i te taumata whakahaere o te tukanga whakaputa. Me tohatoha ōrite ngā matūriki HPMC pai, me te kore e kitea he puranga, he poke rānei.
2. Whakamātautau wairewa
He pai te wairewatanga o te HPMC ki te wai, he tohu nui tēnei mō te aromatawai i tōna kounga. Mā te whakamātautau wairewatanga māmā, ka taea te aromatawai i tōna wairewatanga me te matotorutanga. Ko ngā mahi e whai ake nei:
Tangohia he iti o te paura HPMC, tāpirihia mārire ki te wai matao, ki te wai rānei i te pāmahana rūma, ka mātakitaki i tōna tukanga whakarewa. Me horapa ōrite te HPMC kounga teitei i roto i te wā poto, me te kore e kitea he maturuturunga wai, ā, hei whakamutunga, ka hangaia he wai korori mārama, he wai pōuri paku rānei.
E pā ana te tere memeha o te HPMC ki tōna hanganga ngota, te nui o te whakakapinga, me te parakore o te tukanga. Ka memeha haere pea te HPMC kounga iti, ā, ka ngāwari te memeha, ka hanga he putunga uaua ki te memeha.
3. Te ine i te matotoru
Ko te matotoru tētahi o ngā tawhā tino nui mō te kounga o te HPMC. Ko tōna matotoru i roto i te wai ka pāngia e te taumaha ngota me te taumata o te whakakapinga, ā, ka inehia i te nuinga o te wā mā te whakamahi i te mita matotoru hurihuri, i te mita matotoru capillary rānei. Ko te tikanga motuhake ko te whakarewa i tētahi nui o te HPMC ki roto i te wai, te whakarite i tētahi otinga o tētahi kukū, kātahi ka ine i te matotoru o te otinga. E ai ki ngā raraunga matotoru, ka taea te whakatau ko:
Mena he iti rawa te uara matotoru, tera pea he iti te taumaha ngota ngota, kua pakaru rānei i te wā o te tukanga whakaputa;
Mena he tiketike rawa te uara matotoru, tera pea he nui rawa te taumaha ngota ngota, he koretake rānei te whakakapinga.
4. Te kimi parakore
Ka pā tika te parakore o te HPMC ki tana mahi. He maha atu ngā toenga, ngā poke rānei o ngā hua he iti te parakore. Ka taea te whakatau tuatahi mā roto i ngā tikanga māmā e whai ake nei:
Whakamātautau toenga i te tahunga: Tāpirihia he iti o te tauira HPMC ki roto i te oumu wera-teitei, ka tahu. Ka taea e te nui o te toenga te whakaata i te nui o ngā tote kore-waro me ngā katote konganuku. Me tino iti ngā toenga HPMC kounga teitei.
Whakamātautau uara pH: Tangohia he nui e tika ana o te HPMC ka whakarewa ki te wai, ka whakamahi i te pepa whakamātautau pH, i te mita pH rānei hei ine i te uara pH o te otinga. I raro i ngā āhuatanga noa, me tata te wai HPMC ki te koretake. Mena he waikawa, he kawakore rānei, tera pea he paru, he hua taha rānei.
5. Ngā āhuatanga wera me te pumau wera
Mā te whakamahana i te tauira HPMC, ka kitea tōna pumau wera. Me teitei te pumau wera o te HPMC kounga teitei i te wā whakamahana, ā, kaua e pirau wawe, e pakaru rānei. Ko ngā mahi whakamātautau mahi wera māmā ko:
Whakawerahia he iti o te tauira ki runga i tētahi pereti wera, ka mātakitaki i tōna ira rewa me te pāmahana pirau.
Ki te tīmata te pirau, te huri rānei te tae o te tauira i te pāmahana iti iho, ko te tikanga he ngoikore tōna pumau pāmahana.
6. Te whakatau i te ihirangi makuku
Ka pāngia te pumau me te mahi o te rokiroki e te nui rawa o te makuku o te HPMC. Ka taea te whakatau i te nui o te makuku mā te tikanga taumaha:
Whakatakotoria te tauira HPMC ki roto i te oumu, ka whakamaroke i te 105℃ kia pumau te taumaha, kātahi ka tatau i te rerekētanga taumaha i mua atu, i muri mai hoki i te whakamaroketanga kia whiwhi ai i te nui o te makuku. Ko te HPMC kounga teitei me iti te nui o te makuku, ā, i te nuinga o te wā ka whakahaeretia i raro i te 5%.
7. Te nui o te kitenga whakakapinga
Ko te nui o te whakakapinga o ngā rōpū methoxy me te hydroxypropoxy o te HPMC ka pā tika ki tana mahi, pērā i te wairewatanga, te pāmahana tire, te matotoru, me ētahi atu. Ka taea te whakatau i te nui o te whakakapinga mā te titration matū, te inenga infrared rānei, engari he uaua ake ēnei tikanga, ā, me mahi i roto i te taiao taiwhanga. I roto i te poto, he ngoikore te wairewatanga o te HPMC me te iti o te whakakapinga, ā, ka hanga pea i ngā tire kore ōrite i roto i te wai.
8. Whakamātautau pāmahana gel
Ko te pāmahana tiēre o te HPMC ko te pāmahana e hanga ai he tiēre i te wā e whakamahanahia ana. He awhe pāmahana tiēre motuhake tō te HPMC kounga teitei, i waenga i te 60°C me te 90°C. Ko te tikanga whakamātautau mō te pāmahana tiēre ko:
Whakarewahia te HPMC ki roto i te wai, āta whakanuia te pāmahana, ā, tirohia te pāmahana e huri ai te otinga mai i te mārama ki te pōuriuri, arā, te pāmahana tiēre. Mēnā ka rerekē te pāmahana tiēre mai i te awhe noa, tera pea kāore tōna hanganga ngota ngota, tōna taumata whakakapinga rānei e tutuki i te paerewa.
9. Aromatawai mahi
Tērā pea he rerekē te mahi a te HPMC mō ngā kaupapa rerekē. Hei tauira, i roto i te umanga hanga, he maha ngā wā ka whakamahia te HPMC hei mea pupuri wai me te whakamātotoru. Ka taea te whakamātautau i tōna mahi pupuri wai me tōna pānga whakamātotoru mā roto i ngā whakamātautau moata, putty rānei. I roto i ngā umanga rongoā me te kai, ka whakamahia te HPMC hei mea hanga kiriata, hei rauemi capsule rānei, ā, ka taea te whakamātautau i tōna pānga hanga kiriata me ōna āhuatanga colloidal mā roto i ngā whakamātautau.
10. Te Kakara me ngā Matū Pūngāwerewere
Kaua te HPMC kounga teitei e puta he haunga e kitea ana. Mena he haunga kino, he reka ke rānei te tauira, tera pea i whakaurua mai ngā matū kāore e hiahiatia i te wā o te tukanga whakaputa, kei roto rānei he matū tino pūngāwerewere. Hei tāpiri, kaua te HPMC kounga teitei e whakaputa hau whakapataritari i ngā pāmahana tiketike.
Ka taea te aromatawai i te kounga o te HPMC mā roto i ngā whakamātautau ā-tinana māmā pēnei i te āhua, te ine i te wairewa me te matotoru, mā roto rānei i ngā tikanga matū pēnei i te whakamātautau parakore me te whakamātautau mahi wera. Mā roto i ēnei tikanga, ka taea te whakatau tuatahi i te kounga o te HPMC, kia mau ai tōna mahi pumau i roto i ngā tono tūturu.
Wā tuku: Hepetema-25-2024