He tohunga te kamupene Tiantai Cellulose ki te rangahau, te whakawhanake, te whakaputa me te whakatairanga hokohoko o ngā hua HPMC hydroxypropyl methyl cellulose. Ko te parakore o te HPMC hydroxypropyl methyl cellulose te kaupapa hua e tino āwangawangahia ana e ngā kaihanga me ngā kaiwhakamahi. Kei konei mātou, ngā kaihanga hydroxypropyl methyl cellulose, hei hoatu i tētahi whakataki taipitopito, ko taku tumanako ka pānuihia hei āwhina.
Te whakatau i te parakore o te HPMC hydroxypropyl methyl cellulose
Te mātāpono
Kāore e wairewa te Hydroxypropyl methyl cellulose HPMC i roto i te 80% etanoru. I muri i te wairewatanga me te horoinga mō ngā wā maha, ka wehea te 80% etanoru kua wairewa i roto i te tauira, ka tangohia hei hanga i te hydroxypropyl methyl cellulose HPMC parakore.
Rkaihoko
Ki te kore e kīia tētahi atu mea, ko ngā matū tātari anake kua whakaūtia he wai parakore tātari, he wai whakahoro, he wai whakakore iona rānei, he wai rite te parakore, me whakamahi i roto i te tātari.
95% etanoru (GB/T 679).
Etanora, otinga 80%, whakaranua te etanora 95% (E.2.1) ki te 840mL wai kia 1L.
BMI (GB/T 12591).
Te taputapu
Ngā taputapu taiwhanga noa
He tokotoko whakaoho whakamahana aukume, he 3.5cm te roa.
Para tātari, 40mL, kōhao 4.5μm ~ 9μm.
He rihi mata karāhe, φ10cm, he kōhao waenga.
Pīkara, 400mL.
Kaukau wai pāmahana pumau.
Ka taea e te oumu te whakahaere i te pāmahana i te 105℃±2℃.
Te kaupapa
Paunatia te tauira kia tika te 3 karamu (kia tika ki te 0.001 karamu) ki roto i tētahi kapu taumaha pumau, tāpirihia he 150mL 80% etanoru ki te 60℃ ~ 65℃, whakanohoia te tokotoko aukume ki roto i ngā whakaoho whakamahana aukume, taupokina te pereti mata, whakauruhia he inemahana ki te kōhao o waenganui, tahurihia ngā whakaoho whakamahana, whakatikatikahia te tere whakaoho kia kore ai e tauhiuhi, ā, kia mau tonu te pāmahana ki te 60℃ ~ 65℃. Whakaohokia mō te 10 meneti.
Kati te whakaoho, whakatakotoria te kapure ki roto i te kaukau wai pāmahana pumau o te 60℃ ~ 65℃, tū mārire kia tau te mea kore e wairewa, kātahi ka ringihia te wai i runga i te ipu ki roto i te oko tātari taumaha pumau.
Tāpirihia he 150mL 80% etanoru i te 60℃ ~ 65℃ ki te ipukara, ka whakahokia ngā mahi whakaoho me te tātari i runga ake nei, kātahi ka horoia te ipukara, te pereti mata, te tokotoko whakaoho me te inemahana ki te 80% etanoru i te 60℃ ~ 65℃, kia tino whakawhitia te mea kore e rewa ki te oko, ā, horoia anō ngā mea o roto i te oko. Me whakamahi te momi i tēnei mahi, ā, me karo i te whakamaroke i te keke. Ki te puta ngā matūriki mā roto i te tātari, me whakaroa te momi.
Kia mōhio: me whakarite kia horoia katoatia te konutai pūhaumāota i roto i te tauira e te 80% etanoru. Mēnā e tika ana, ka taea te whakamahi i te 0.1mol/L o te otinga hiriwa hauota me te 6mol/L waikawa hauota hei tirotiro mēnā kei roto i te tātari he katote pūhaumāota.
I te pāmahana rūma, ka horoia ngā mea o roto o te ipu para kia rua ngā wā ki te 95% etanoru i te 50mL, ā, i te mutunga ki te ethyl mililiter (20mL) hei horoinga tuarua. Kaua e roa rawa te wā tātari. Ka whakanohoia te ipu para ki roto i te beaker, ā, ka whakamahanahia ki runga i te kaukau mamaoa kia kore ra ano e kitea he haunga ethyl mililiter.
Kia mōhio: me horoi ki te ethyl mi kia tino tangohia te etanoru mai i te matū kore-rewa. Mēnā kāore te etanoru i tino tangohia i mua i te whakamaroke i roto i te oumu, kāore e taea te tango katoa i te wā e whakamaroke ana i roto i te oumu.
I whakanohoia te ipu para me te pīkara ki roto i te oumu i te 105℃±2℃ kia whakamarokehia mō te 2 hāora, kātahi ka whakawhitia ki te whakamaroke kia whakamataohia mō te 30 meneti, ā, i paunatia, ka whakamarokehia mō te 1 hāora, ā, i paunatia kia whakamataohia kia kore ra ano te panonitanga papatipu e neke atu i te 0.003g. Mēnā ka piki ake te papatipu i roto i te 1 hāora whakamaroke, ko te papatipu iti rawa i kitea ka whakamahia.
Ngā hua i tatauhia
I tatauhia te parakore o te HPMC hydroxypropyl methyl cellulose hei wāhanga papatipu P, ā, i whakaaturia te uara hei %
M1 — te papatipu o te mea maroke kore-rewa, i roto i te karamu (g);
M0 — Te taumaha o te wāhanga whakamātautau, i roto i te karamu (g);
W0 — Te makuku me te ihirangi pūngāwerewere o te tauira, %.
Ka whakaitihia te uara toharite tātaitanga o ngā inenga whakarara e rua ki te kotahi te ira tekau hei hua ine.
Ptika
Kāore te rerekētanga tuturu i waenga i ngā inenga motuhake e rua i whiwhihia i raro i ngā tikanga āheinga tāruarua e neke atu i te 0.3%, ki te kore e neke atu i te 5% te nui atu i te 0.3%.
Wā tuku: 14-Pepuere-2022