Tuatahi, me whai whakaaro te karaehe o te kapia hanga ki nga rauemi mata.Ko te take matua mo te paparanga o te kapia hanga ko te incompatibility i waenganui i te whakaehunga kiriaku me te hydroxypropyl methylcellulose (HPMC).Tuarua, na te iti rawa o te wa ranu;he ngoikore ano hoki te mahi matotoru o te kapia hanga.I roto i te kapia hanga, me whakamahi tonu koe hydroxypropyl cellulose (HPMC), no te mea ka marara noa te HPMC ki te wai, kaore e tino memeha.I muri tata ki te 2 meneti, ka piki haere te pokey o te wai, ka puta he otinga colloidal viscous tino marama.Ko nga hua rewa wera, ina pa ana ki te wai matao, ka tere te marara ki roto i te wai kohua, ka ngaro ki te wai kohua.Ka taka te pāmahana ki tetahi pāmahana, ka ata puta te pokey tae noa ki te whakaputanga o te otinga colloidal viscous tino marama.Ko te inenga kaha o te hydroxypropyl methylcellulose (HPMC) i roto i te kapia hanga he 2-4KG.
Ko te Hydroxypropyl methylcellulose (HPMC) he mea pumau i roto i nga taputapu hangahanga, he pai rawa te painga o te tango i te koriri me te maukati i te wai, kaore e pa ki nga huringa o te uara pH.Ka taea te whakamahi i te viscosity i waenga i te 100,000 s me te 200,000 s.I roto i te hangahanga, te teitei o te pokey, te pai.Ko te pokey he taurite ki runga ki te kaha kōpeke here.Ko te teitei ake o te pokey, ka iti ake te kaha o te pupuhi.Ko te tikanga, he tika te pokey o te 100,000 s.
Whakaranuhia te CMC ki te wai ka hanga he whakapiri paru hei whakamahi i muri mai.I te wa e whakauru ana i te whakapiri CMC, taapirihia he wai matao ki roto i te taika puranga me te miihini whakakorikori.Ka timata te miihini whakakorikori, me ata tauhiuhia te carboxymethyl cellulose ki roto i te taika puranga, me te whakaoho tonu, kia tino whakakotahi te carboxymethyl cellulose me te wai, ka rewa katoa te carboxymethyl cellulose.A, no te whakakore i te CMC, he maha nga wa e tika ana kia marara me te whakauru tonu, kia pai ake ai te "aukati i te pupuhi me te whakahiatotanga o te CMC i muri i te tutakitanga ki te wai, me te whakaiti i te raruraru o te whakakorenga CMC" me te whakanui ake i te tere o te whakakore o te CMC .
Ko te wa whakaranu kaore i te rite ki te wa mo te CMC kia memeha katoa.he 2 whakamaramatanga.Ko te tikanga, he poto ake te wa whakaranu i te waa mo te CMC kia memeha katoa, kei runga i nga korero.Ko te putake mo te whakawa i te wa ranu ko te wa e marara ana te CMC ki roto i te wai karekau he kapia e kitea ana, ka taea te aukati i te whakaranu, kia uru atu te CMC me te wai ki roto ki a ratau i raro i nga tikanga raraunga pateko.He maha nga take mo te whakatau i te wa e hiahiatia ana mo te whakakorenga o te CMC:
(1) Ko te CMC me te wai kua whakauruhia katoa, a kaore he taputapu wehewehe totoka-wai i waenganui ia ratou;
(2) Ko te whakapiri whakauru he pai te waahanga me te mea noa, me te mata maeneene me te maeneene;
(3) Ko te whakapiri whakauru kaore he tae, he tino marama, kaore he matūriki i roto i te whakapiri.He 10 ki te 20 haora te roa mai i te wa ka makahia te CMC ki roto i te taika puranga ka konatunatua ki te wai kia rewa katoa.
Te wa tuku: Hanuere-13-2023