Te korero mo te Hydroxypropyl Methyl Cellulose (HPMC)

1. He aha te ingoa o te hydroxypropyl methylcellulose?

——Whakautu: Hydroxypropyl Methyl Cellulose, English: Hydroxypropyl Methyl Cellulose Whakapoto: HPMC or MHPC Alias: Hypromellose;Cellulose Hydroxypropyl Methyl Ether;Hypromellose, Cellulose, 2-hydroxypropylmethyl Cellulose ether.Cellulose hydroxypropyl methyl ether Hyprolose.

2. He aha te whakamahinga matua o te hydroxypropyl methylcellulose (HPMC)?

——Whakautu: Kei te whakamahia nuitia te HPMC i roto i nga taonga hanga, paninga, kapia waihanga, uku, rongoa, kai, kakano, ahuwhenua, whakapaipai, tupeka me etahi atu ahumahi.Ka taea te wehewehea te HPMC ki te tohu hangahanga, te karaehe kai me te karaehe rongoa e ai ki te kaupapa.I tenei wa, ko te nuinga o nga hua o te whare he tohu hanga.I roto i te waahanga hanga, ka whakamahia te paura putty i roto i te nui, e 90% te whakamahi mo te paura putty, a ko te toenga ka whakamahia mo te raima ciment me te kopa.

3. He maha nga momo o te hydroxypropyl methylcellulose (HPMC), a he aha nga rereketanga o o raatau whakamahinga?

——Whakautu: Ka taea te wehewehea te HPMC ki te momo inamata me te momo wetewete wera.Ka tere te marara o nga momo momo hua i roto i te wai matao ka ngaro ki te wai.I tenei wa, karekau he pokarekaretanga o te wai na te mea ka marara noa te HPMC ki te wai karekau he tino rewa.Tata ki te 2 meneti, ka piki haere te pokey o te wē, ka puta he colloid karekau marama.Ko nga hua rewa wera, ka tutakina ki te wai matao, ka tere te marara i roto i te wai wera ka ngaro ki te wai wera.Ka taka te pāmahana ki tetahi pāmahana, ka ata puta te pokey tae noa ki te hanga i te colloid viscous maramara.Ko te momo wera-rewa ka taea anake te whakamahi i te paura putty me te moata.I roto i te kapia wai me te peita, ka whakarōpūhia nga ahuatanga kaore e taea te whakamahi.Ko te momo inamata he whanui ake nga tono.Ka taea te whakamahi i roto i te paura putty me te kumete, tae atu ki te kapia wai me te peita, kaore he whakapae.

4. Me pehea te whiriwhiri i te hydroxypropyl methylcellulose (HPMC) e tika ana mo nga kaupapa rereke?

——Whakautu:: Te tono i te paura putty: He iti noa nga whakaritenga, he 100,000 te viscosity, ka nui.Ko te mea nui kia pai te pupuri i te wai.Te tono mo te kumete: nga whakaritenga teitei ake, te pokey teitei, te 150,000 he pai ake.Te whakamahi i te kapia: ko nga hua inamata me te pokey teitei e hiahiatia ana.

5. He aha te mea e tika ana kia aro ki roto i te tino tono o te hononga i waenga i te pokey me te pāmahana o te HPMC?

——Whakautu: Ko te pokey o te HPMC he taurite ki te pāmahana, ara, ka piki te pokey i te hekenga o te pāmahana.Ko te pokey o te hua ka korerohia e matou e pa ana ki te hua whakamatautau o tana otinga wai 2% i te mahana o te 20 nga nekehanga Celsius.

I roto i nga whakamahinga mahi, me tohu ko nga waahi he nui te rereketanga o te pāmahana i waenga i te raumati me te hotoke, ka tūtohuhia kia whakamahia te iti o te viscosity i te takurua, he pai ake te hanga.Ki te kore, ka iti te pāmahana, ka piki ake te pokey o te cellulose, ka kaha te kaha o te ringa i te wa e wiriwiri ana.

Pokey Waenga: 75000-100000 te nuinga whakamahia mo putty

Take: pai te pupuri wai

Te pokey teitei: 150000-200000 Te nuinga whakamahia mo te matūriki polystyrene matūriki waiariki moata rapa rapa paura me vitrified microbead waiariki moata whakawera.

Take: He teitei te pokey, karekau e ngawari te taka, ka totohu, ka pai ake te hanga.

6. Ko te HPMC he ether cellulose kore-ionic, na he aha te mea kore-katote?

——Whakautu: Ki nga korero a te reimana, ko te kore-ion he matū karekau e katote i roto i te wai.Ko te Ionization e pa ana ki te tukanga e wetewete ai te electrolyte ki roto i nga katote katoo ka taea te neke noa i roto i tetahi whakarewa motuhake (pērā i te wai, te waipiro).Hei tauira, te konutai pūhaumāota (NaCl), te tote e kainga ana e tatou ia rā, ka memeha ki te wai, ka katote hei whakaputa i nga katote konutai (Na+) ka taea te neke pai me nga katote pūhaumāota (Cl) he toraro.Arā, ka tukuna te HPMC ki roto i te wai, karekau e wehe ki roto i nga katote katoo, engari ka noho ki te ahua o te ngota ngota.


Te wa tuku: Apr-26-2023