Ko te otinga HPMC

1, he aha te whakamahinga matua o te hydroxypropyl methyl cellulose (HPMC)?

Whakautu : Kei te whakamahia nuitia te HPMC ki nga taonga hanga whare, paninga, kapia waihanga, karamu, rongoa, kai, pueru, ahuwhenua, whakapaipai, tupeka me etahi atu ahumahi.Ka taea te wehewehea te HPMC ki: te tohu hanga, te kai me te tohu hauora e ai ki te whakamahinga.I tenei wa ko te hanga whare te nuinga o te taumata hanga, i roto i te taumata hanga, he nui rawa te nui o te paura putty, e 90% ka whakamahia ki te mahi paura putty, ko te toenga ka whakamahia ki te mahi moata sima me te kāpia.

2, ka wehea te hydroxypropyl methyl cellulose (HPMC) ki etahi momo, he aha te rereketanga o tana whakamahinga?

Whakautu :Ka taea te wehea te HPMC ki te tere me te wera, nga hua tere, i roto i te wai makariri ka tere marara, ka ngaro i roto i te wai, i tenei wa karekau he pokey, no te mea kua marara noa te HPMC i roto i te wai, kaore he tino rewa.Tata ki te 2 meneti, ka piki haere te pokey o te wē, ka puta he colloid karekau marama.Hua wairewa wera, i roto i te wai matao agglomeration, ka taea i roto i te wai wera, hohoro marara, ngaro i roto i te wai wera, tae noa ki te taka te pāmahana ki tetahi pāmahana, pokey āta puta, tae noa ki te hanganga o te colloid viscous mārama.Ko te momo whakarewa wera ka taea anake te whakamahi i roto i te paura putty me te kumete, i roto i te kopa wai me te paninga, ka puta te ahuatanga whakahiatotanga, kaore e taea te whakamahi.Ko te tauira tareka tonu, he iti ake te whanui o te tono, he hoha ki te paura tamaiti me te kumete, me te kapia wai me te paninga, ka taea te whakamahi katoa, kaore he aha te taboo.

3, hydroxypropyl methyl cellulose (HPMC) tikanga memeha i te hunga?

– te whakautu: te tikanga wetewete wai wera: na te mea karekau te HPMC e rewa ki te wai wera, na reira ka taea te whakamararatanga o te HPMC moata ki te wai wera, ka tere te rewa ina whakamatao, e rua nga tikanga e whakaahuahia ana penei:

1) Whakakiia te ipu ki te wai wera e hiahia ana koe ka whakamahana ki te 70 ℃.Ko te Hydroxypropyl methyl cellulose ka taapirihia i raro i te whakaoho puhoi, ka maanu te HPMC ki runga i te mata o te wai, katahi ka hanga he slurry, ka whakamataohia i raro i te whakakorikori.

2) Whakauruhia te 1/3, te 2/3 ranei o te nui o te wai e hiahiatia ana ki roto i te ipu ka whakamahana ki te 70 ℃.Marara HPMC kia rite ki te tikanga 1) ki te whakarite slurry wai wera;Kātahi ka tāpirihia te toenga o te wai matao ki te slurry wai wera me te whakamatao i te ranunga i muri i te whakaoho.

Te tikanga whakaranu paura: HPMC paura me te maha o etahi atu mea paura paura, kua oti te konatunatua ki te whakaranu, katahi ka tapirihia he wai kia memeha, i tenei wa ka taea e te HPMC te memeha, kaore e whakahiato, no te mea ko ia kokonga iti, he iti noa te paura HPMC, he wai. ka memeha tonu.– Ka whakamahia e nga kaihanga paura putty me te mota tenei tikanga.[Hydroxypropyl methyl cellulose (HPMC) i whakamahia hei kaikawe whakapakeke me te kai pupuri wai i roto i te kumete paura putty.

4, me pehea te whakatau i te kounga o te hydroxypropyl methyl cellulose (HPMC) ngawari me te mohio?

Whakautu : (1) ma: ahakoa e kore e taea e te ma te whakatau mehemea he pai te HPMC, a, ki te whakaurua ki roto i te tukanga whakaputa ma, ka pa ki tona kounga.Engari, ko te nuinga o nga hua pai he pai te ma.(2) fineness :HPMC fineness te tikanga 80 mesh me 100 mesh,120 kaupapa iti, Hebei HPMC te nuinga 80 mata, te pai te fineness, te tikanga korero, te pai.(3) whakawhiti: te hydroxypropyl methyl cellulose (HPMC) ki roto i te wai, te hanganga o te colloid marama, kite tona tuku, te nui te tuku he pai ake, nga mea insoluble roto iti.He pai te whakawhiti o te reactor poutū, he kino ake te kino o te reactor whakapae, engari ehara i te mea he pai ake te kounga o te reactor poutū i to te reactor whakapae.He maha nga mea hei whakatau i te kounga o te hua.(4) Tauwehenga: te rahi o te wahanga, te taumaha ka pai ake.I tua atu i te mea nui, na te mea he nui te ihirangi turanga hydroxyl propyl i roto i te nuinga o te waa, he nui te ihirangi turanga hydroxyl propyl, tiaki wai kia pai ake.

5, he pai ake te pokey hydroxypropyl methyl cellulose (HPMC)?

– whakautu: kia hoha koe ki te paura tamaiti he pai noa 100 mano, etahi teitei ake o te hiahia mo te kumete, e hiahia ana kia 150 mano te kaha ki te whakamahi.I tua atu, ko te HPMC te mahi tino nui mo te pupuri wai, ka whai i te whakamaroketanga.I roto i te paura putty, i te mea he pai te pupuri i te wai, he iti te pokey (7-80 mano), ka taea ano hoki, ko te tikanga, he nui ake te paheketanga, he pai ake te pupuri i te wai whanaunga, ka nui ake te viscosity. 100 mano, e kore e nui te pokey o te pupuri wai.

6, hydroxypropyl methyl cellulose (HPMC) he aha nga tohu hangarau matua?.

Whakautu: Ko te ihirangi Hydroxypropyl me te viscosity, ko te nuinga o nga kaiwhakamahi e whakaaro ana ki enei tohu e rua.He nui te ihirangi Hydroxypropyl, he pai ake te pupuri wai.He pai ake te pokey, te pupuri wai, te whanaunga (engari ehara i te mea tino tika), me te pokey, te kumete ciment he pai ake te whakamahi i etahi.

7, hydroxypropyl methyl cellulose (HPMC) he aha nga rawa matua?

Whakautu: hydroxypropyl methyl cellulose (HPMC) rauemi mata matua: miro para, chloromethane, propylene oxide, etahi atu rauemi mata, papa alkali, waikawa, toluene, waipiro isopropyl me etahi atu.

8, HPMC i roto i te tono o te putty paura, te mahi matua, ahakoa te takanga o te matū?

Whakautu: HPMC i roto i te paura putty, te matotoru, te wai me te hanga e toru nga mahi.Matotoru: ka taea te whakakaha i te cellulose ki te whakatārewatanga, kia noho rite tonu te otinga ki runga, ki raro, te mahi o te iri aukati.Te pupuri i te wai: kia maroke te paura putty, hei awhina i te konupūmā hina i roto i te mahi o te tauhohenga wai.Hanganga: whakahinuhinu cellulose, ka taea te hanga putty paura he hanga pai.Karekau a HPMC e uru ki nga tauhohenga matū, engari he mahi tautoko anake.Ko te paura putty me te wai, kei runga i te pakitara, he tauhohenga matū, na te hanga o nga matū hou, ka heke iho te pakitara o te paura putty mai i te pakitara, ka kuia hei paura, katahi ka whakamahia, kaore e pai, na te mea kua hanga he matū hou. (calcium carbonate).Ko te hanganga matua o te paura konupūmā hina ko te ranunga o Ca(OH)2,CaO me te iti o CaCO3,CaO+H2O=Ca(OH)2 — Ca(OH)2+CO2=CaCO3↓+H2O Gray calcium in te wai me te hau i raro i te mahi a CO2, konupūmā warowaihā, me te HPMC anake te wai, āwhina konupūmā hina hohenga pai ake, ona ake kihai i whai wāhi i roto i tetahi tauhohenga.

9.HPMC non-ionic cellulose ether, na he aha te mea-kore?

A: Ko te tikanga, ko nga katote kore he matū kaore e katote i roto i te wai.Ko te Ionization ko te wetewete o te electrolyte ki roto i nga katote katote-kore-kore i roto i tetahi whakarewa motuhake, penei i te wai, i te waipiro ranei.Hei tauira, ko te tote e kai ana tatou ia ra — te konutai pūhaumāota (NaCl) ka memeha ki te wai ka katote ki te whakaputa i nga katote konutai neke-kore (Na+) me te utu pai me nga katote hauota (Cl) me te utu kino.Arā, karekau te HPMC i roto i te wai e wehe ki roto i nga katote katoo, engari ka noho hei ngota ngota.

10. He aha te mea e pa ana ki te pāmahana reera o te hydroxypropyl methyl cellulose?

– Whakautu: Ko te pāmahana gel o te HPMC e pa ana ki te ihirangi methoxyl, ko te iti iho o te methoxyl content ↓, ko te teitei ake o te pāmahana gel.

11, paura putty paura me HPMC kaore he hononga?

Whakautu: paura putty paura paura te nuinga me te pungarehu konupūmā kounga he tino nui hononga, a kahore HPMC hononga nui rawa.Ko te iti o te konupūmā konupūmā o te konupūmā hina me te ōwehenga hē o te CaO me Ca(OH)2 i roto i te konupūmā hina ka heke te paura.Mena he iti te hononga ki te HPMC, he ngoikore te pupuri wai o te HPMC, ka puta ano te paura.

12, hydroxypropyl methyl cellulose wai matao wairewa me wera wairewa i roto i te tukanga whakaputa o te aha te mea te rerekētanga?

– Whakautu :HPMC wai matao momo otinga inamata i muri i te maimoatanga mata glyoxal, hoatu ki roto i te wai matao hohoro marara, engari e kore e tino memeha, pokey ake, kua memeha.Ko te momo thermosoluble kaore ano kia rongoatia te mata ki te glyoxal.He nui te nui o te glyoxal, he tere te marara, engari he puhoi te pokey, he iti te nui, engari.

13, he aha te haunga hydroxypropyl methyl cellulose (HPMC)?

– Whakautu: Ko te HPMC na te tikanga whakarewa he mea hanga mai i te toluene me te waipiro isopropyl.Mena kaore i te tino pai te horoinga, ka toe etahi reka.

14, nga whakamahinga rereke, me pehea te whiriwhiri i te hydroxypropyl methyl cellulose (HPMC) tika?

– whakautu: kia hoha ki te tono paura tamaiti: he iti te whakaritenga, he 100 mano te pokey, pai, he mea nui ki te tiaki i te wai kia tata.Te tono moata: nga whakaritenga teitei ake, nga whakaritenga teitei o te pokey, 150 mano kia pai ake.Te tono kapia: te hiahia mo nga hua inamata, te pokey teitei.

15.He aha te ingoa o te hydroxypropyl methyl cellulose?

– WHAKAUTU: Hydroxypropyl Methyl Cellulose, Abreviated as HPMC or MHPC, Hydroxypropyl Methyl Cellulose ranei;Cellulose hydroxypropyl methyl ether;Hypromellose, Cellulose, 2-hydroxypropyl methyl Cellulose ether.

16.HPMC i roto i te tono paura putty, putty paura mirumiru he aha te take?

Whakautu: HPMC i roto i te paura putty, te matotoru, te wai me te hanga e toru nga mahi.Te kore e uru ki tetahi tauhohenga.Nga take o te mirumiru: 1, he nui rawa te wai.2, e kore te mea maroke te raro, i runga i te tihi o te apa waruhia, hoki ngāwari ki te namunamu.

17. He aha te rereketanga o HPMC me MC?

– Whakautu : Ko te MC he methyl cellulose, he mea hanga mai i te cellulose ether na roto i te raupapa o nga tauhohenga me te methane chloride hei kaihoko whakaetere i muri i te maimoatanga o te miro parakore ki te kawakore.Ko te tikanga, ko te tohu whakakapinga ko te 1.6~2.0, ka rereke te whakarewatanga ki te tohu whakakapinga.Noionic cellulose ether.

(1) Ko te pupuri i te wai o te methyl cellulose e whakawhirinaki ana ki te nui o te taapiri, te pokey, te pai o te matūriki me te tere memeha.Ko te tikanga taapiri he nui, he iti te iti, he pokey, he teitei te pupuri wai.I roto ia ratou, ko te nui o te taapiri he tino awe ki te pupuri i te wai, a, kaore i te rite te pokey ki te pupuri wai.Ko te tere o te whakakore i te nuinga ka whakawhirinaki ki te tohu whakarereke o te mata me te pai o te matūriki o te matūriki cellulose.I roto i te maha o nga etera cellulose i runga ake nei, he teitei ake te reeti pupuri wai methyl cellulose me te hydroxypropyl methyl cellulose.

(2) Ko te methyl cellulose he wairewa ki te wai matao, he uaua ki te memeha i roto i te wai wera.He tino pumau tona otinga wai i roto i te pH=3~12.He pai te hototahitanga ki te māngaro, te kapia guanidine me te maha o nga surfactants.Ka puta te whakamaarama ina tae te pāmahana ki te pāmahana wai.

(3) Ko te huringa o te pāmahana ka tino pa ki te reiti pupuri wai o te methyl cellulose.Ko te tikanga, ka nui ake te pāmahana, ka kino te pupuri wai.Mena ka nui ake te mahana o te kumete ki te 40 ℃, ka tino kino te pupuri wai o te methyl cellulose, ka tino pa ki te hanga o te moata.

(4) Ko te Methyl cellulose he tino awe ki te hanga me te piri o te kumete.Ko te "Adhesion" i konei e pa ana ki te whakapiringa i rongohia e te kaimahi i waenga i te taputapu me te taputapu pakitara, ara ko te parenga kutikuti o te moata.He nui te Adhesion, he nui te parenga kutikuti o te moata, he nui ano te kaha e hiahiatia ana e nga kaimahi i roto i te tukanga o te whakamahinga, a he kino te hanga o te moata.I roto i nga hua cellulose ether, ko te piri o te methyl cellulose kei te taumata ngawari.

Ko te HPMC mo te hydroxypropyl methyl cellulose, ka parahia e te miro i muri i te maimoatanga kawakore, me te propylene oxide me te chloromethane hei kaihoko etherifying, na roto i te raupapa o nga tauhohenga me te hanga o te cellulose kore-katote i konatunatua ether.Ko te tohu o te whakakapinga ko te tikanga 1.2~2.0.He rereke ona ahuatanga ki te wahanga o te methoxy me te ihirangi hydroxypropyl.

(1) Ko te Hydroxypropyl methyl cellulose he ngawari te wairewa i roto i te wai matao, he uaua ki te memeha ki te wai wera.Heoi ano, ko te pāmahana whakahiato i roto i te wai wera he tino teitei ake i tera o te methyl cellulose.Ko te memehatanga o te methyl cellulose i roto i te wai matao i tino pai ake.

(2) Ko te viscosity o te hydroxypropyl methyl cellulose e pa ana ki tona taimaha ngota, a, ko te teitei o te taimaha o te ngota, ko te teitei ake o te viscosity.Ka pa ano te pāmahana ki te pokey.Ka heke te pokey ina piki ake te pāmahana.Engari he iti ake te paanga o te pāmahana teitei i to te methyl cellulose.Ka noho pumau te otinga ina rongoa ki te pāmahana rūma.

(3) Hydroxypropyl methyl cellulose he pumau ki te waikawa me te turanga, a ko tana otinga wai he tino pumau i roto i te awhe o te pH = 2 ~ 12.He iti te paanga o te houra me te wai kotakota ki ona taonga, engari ka taea e te kawakore te whakatere i te tere o te whakakore me te whakapai ake i te pokey.Ko te Hydroxypropyl methyl cellulose he pumau ki nga tote whanui, engari ka nui te kukū o te wairewa tote, ka piki ake te pokey o te otinga hydroxypropyl methyl cellulose.

(4) Ko te pupuri i te wai o te hydroxypropyl methyl cellulose e whakawhirinaki ana ki tana inenga me te pokey, me te tere o te pupuri wai o te hydroxypropyl methyl cellulose he teitei ake i tera o te methyl cellulose i te inenga kotahi.

(5) Hydroxypropyl methyl cellulose ka taea te konatunatua ki te wai-wairewa polymer pūhui kia rite, otinga pokey teitei.Pērā i te waipiro polyvinyl, te māngaro ether, te kāpia huawhenua me ētahi atu.

(6) Ko te piri o te hydroxypropyl methyl cellulose ki te hanga kumete he teitei ake i tera o te methyl cellulose.

(7) Hydroxypropyl methyl cellulose he pai ake te parenga i te methyl cellulose, a he iti ake i tera o te methyl cellulose.

18. He aha te mea e tika ana kia aro atu ki te whakamahinga 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 ki te heke o te pāmahana.Ina korero tatou mo te pokey o tetahi hua, kei te korero tatou mo te 2% o te hua i roto i te wai i te 20 nga nekehanga Celsius.

I roto i te whakamahinga mahi, i nga waahi he nui te rereketanga o te pāmahana i waenga i te raumati me te takurua, me tohu he pai ake te whakamahi i te pokey iti i te takurua, he pai ake te hanga.Ki te kore, ka iti te pāmahana, ka piki ake te pokey o te cellulose, a ka warohia, ka taumaha te ahua.

Pokey Waenga: 75000-100000 te nuinga whakamahia mo putty.

Take: He pai te pupuri wai.

Te pokey teitei:150000-200000 te nuinga whakamahia mo te polystyrene matūriki matūriki moata rapa paura me te vitrified pirepire kumete marara.

Te take: te pokey teitei, kaore i te ngawari ki te taka te kumete, te rere iri, te whakapai ake i te hanga.

Engari i te nuinga o te korero, ko te teitei ake o te pokey, ko te pai ake o te pupuri wai, he maha nga wheketere kumete maroke, me te whakaaro ki te utu, whakamahia te cellulose viscosity medium (75000-100000) hei whakakapi i te cellulose viscosity medium me te iti (20000-40000) hei whakaiti i te nui. o te taapiri.