He aha te rerekētanga i waenganui ihydroxypropyl methylcellulose(HPMC) me te S, kāore rānei?
1. Kua wehea te HPMC ki te momo tere me te momo marara tere
Ko te momo horapa tere HPMC kua tāpirihia te reta S. I te wā o te tukanga whakaputa, me tāpiri te glyoxal.
Kāore te momo HPMC inamata e tāpiri reta, pērā i te "100000" he "100000 matotoru momo marara tere HPMC".
2. He rerekē ngā āhuatanga mēnā he S, kāore rānei
Ka tere te horapa o te HPMC i roto i te wai matao, ka memeha atu ki roto i te wai. I tēnei wā, kāore he matotoru o te wai, nā te mea ka horapa noa te HPMC i roto i te wai, ā, kāore he memehatanga tuturu. I muri i te rua meneti pea, ka piki haere te matotoru o te wai, ka hanga he wai piri mārama. He kōroiti matotoru.
Ka tere te horapa o te HPMC inamata ki roto i te wai wera i te 70°C pea. Ina heke te pāmahana ki tētahi pāmahana, ka puta mārire te matotoru kia puta rā anō he kōroiti matotoru mārama.
3. He rerekē te kaupapa mēnā he S, kāore rānei
Ka taea anake te whakamahi i te HPMC inamata i roto i te paura putty me te moata. I roto i ngā kāpia wai, ngā paninga me ngā taputapu horoi, ka puta he pupū, ā, kāore e taea te whakamahi.
He whānuitia ngā whakamahinga o te HPMC tere horapa. Ka taea te whakamahi i roto i te paura putty, te moata, te kāpia wai, te peita, me ngā hua horoi, kāore he ārai.
Tikanga whakarewa
1. Tangohia te nui o te wai wera e hiahiatia ana, maka ki roto i tētahi ipu ka whakamahana kia neke atu i te 80°C, kātahi ka tāpirihia mārire tēnei hua me te whakaoho mārire. Ka mānu te cellulose i runga i te wai i te tīmatanga, engari ka marara mārire kia hanga he paraoa ōrite. Whakamataohia te wai mā te whakaoho.
2. Whakamahanahia rānei te 1/3, te 2/3 rānei o te wai wera ki runga ake i te 85°C, tāpirihia te cellulose kia puta he ranunga wai wera, kātahi ka tāpirihia te toenga o te wai matao, me te whakaoho tonu, ā, whakamataohia te ranunga.
3. He angiangi te maha o ngā mata o te cellulose, ā, he rite tonu ki tētahi matūriki iti i roto i te paura kua whakaohokia ōrite, ā, ka tere te rewa ina tūtaki ki te wai hei hanga i te matotoru e hiahiatia ana.
4. Tāpirihia mārire, kia ōrite hoki te cellulose i te pāmahana rūma, ā, me whakaoho tonu i te wā e tāpirihia ana kia puta rā anō he wai mārama.
He aha ngā āhuatanga e pā ana ki te pupuri wai o te hydroxypropyl methylcellulose?
Ko te pupuri wai o te hua HPMC hydroxypropyl methylcellulose ka pāngia e ēnei āhuatanga:
1. Te ōritetanga o te HPMC cellulose ether
He rite tonu te tohatoha o ngā rōpū methoxy me te hydroxypropoxy o te HPMC e tauhohe ōrite ana, ā, he nui hoki te pupuri wai.
2. Te pāmahana wera o te cellulose ether HPMC
Ka teitei ake te pāmahana o te tiēre wera, ka teitei ake te auau pupuri wai; ki te kore, ka iti ake te auau pupuri wai.
3. Te matotoru o te HPMC cellulose ether
Ina piki te matotoru o te HPMC, ka piki anō hoki te tere pupuri wai; ina tae te matotoru ki tētahi taumata, ka ngawari te pikinga o te tere pupuri wai.
Te nui o te tāpiri HPMC cellulose ether
Ko te nui ake o te nui tāpiri o te cellulose ether HPMC, ko te teitei ake o te tere pupuri wai me te pai ake o te pānga pupuri wai.
I te awhe o te 0.25-0.6%, ka tere te piki o te auau pupuri wai i te pikinga o te nui o te tāpiri; ina piki ake te nui o te tāpiri, ka puhoi haere te ia o te pikinga o te auau pupuri wai.
Wā tuku: Oketopa-17-2022