Hydroxypropyl methyl cellulose HPMC raruraru noa

1. He aha te tino whakamahinga o te hydroxypropyl methyl cellulose?

HPMCe whakamahia nuitia ana i roto i nga taonga hanga whare, paninga, kapia waihanga, uku, rongoa, kai, pueru, ahuwhenua, whakapaipai, tupeka me etahi atu ahumahi. Ka taea te wehewehea te HPMC ki te reanga ahumahi, te kai me te tohu hauora i runga i te whakamahinga.

2. Kua wehea te Hydroxypropyl methyl cellulose ki etahi momo, he aha te rereketanga o enei?

Ka taea te wehea te HPMC ki te inamata (waitohu tohu "S") me te wera wairewa, nga hua inamata, i roto i te wai matao ka tere marara, ka ngaro i roto i te wai, i tenei wa karekau he pokey o te wai, 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 wai, ka hanga he kiri maamaa me te piri. Heat wairewa hua, clumped i roto i te wai matao, e taea hohoro marara i roto i te wai wera, ngaro i roto i te wai wera, pērā i te pāmahana taka ki tetahi pāmahana (i runga i te pāmahana rā o te hua), te pokey puta āta, tae noa ki te hanganga o te colloid viscous mārama.

3. Me pehea te whakatau i te kounga o te hydroxypropyl methyl cellulose ngawari me te ngawari?
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 nga hua pai he pai te nuinga o te ma.
2) pai: HPMC pai te tikanga 80 mata me te 100 mata, 120 kaupapa iti, te pai te pai.
3) whakawhiti marama: HPMC i roto i te wai, hanga he colloid marama, kite tona transmittance marama, te nui te penetrable o te pai, whakamārama insolubles iti roto, hohenga tauhohenga poutū i te tikanga pai, ka tuku etahi o te hohenga hohenga whakapae, engari e kore e taea te whakamārama he pai ake i te hanga ipu wairewa poutū, he maha nga mea e whakatau ana i te kounga o te hua.
4) te rahinga: te nui o te waahanga, te taumaha ake, te pai ake, i te mea nui, i te nuinga o te waa na te nui o te ihirangi o te hydroxypropyl i roto, he nui te ihirangi hydroxypropyl, he pai ake te pupuri wai.

4. He aha nga tikanga wetewete o te hydroxypropyl methyl cellulose?
1) Ka taea te whakauru i nga tauira katoa ki roto i te rauemi ma te tikanga whakaranu maroke;
2) Me taapiri tika ki te otinga wai mahana noa, he pai ake te whakamahi i te whakamararatanga wai matao, i muri i te taapiri i roto i te 10-90 meneti kia matotoru (whakaoho whakaohooho)
3) Ka taea te whakakore i nga tauira noa i muri i te whakaranu me te marara ki te wai wera me te taapiri i te wai matao i muri i te whakaoho me te whakamatao;
4) I te wa e rewa ana, mena ka puta te ahuatanga o te whakahiatotanga, na te mea kaore i te rawaka te whakakorikori, ka taapiri tika ranei te tauira noa ki te wai matao. I tenei wa, me tere te whakaoho.
5) Mena ka puta nga mirumiru i te wa e whakakorehia ana, ka taea te tango ma te tu mo te 2-12 haora (ko te wa motuhake ka whakawhirinaki ki te rite o te otinga) ma te whakakoi me te pehanga, ma te taapiri ranei i te nui o te kaihoko whakakore.

5 hydroxypropyl methyl cellulose i roto i te rōrahi o te paura putty?
HPMC i roto i te tono tūturu o te nui, e te taiao āhuarangi, pāmahana, kounga konupūmā hina rohe, tātai paura putty me whakaritenga kiritaki o te kounga rerekē, a he rerekētanga a tawhio noa, te tikanga i waenganui i 4-5 kirokaramu.

6. He aha te pokey tika o te hydroxypropyl methyl cellulose?
Ko te paura Putty te tikanga 100000 kēne, he teitei ake nga whakaritenga moata, ki te 150000 he pai noa iho, a ko te HPMC he mea nui ake ko te pupuri wai, ka whai i te matotoru. I roto i te paura putty, i te mea he pai te pupuri i te wai, he iti te paheketanga (7-8), ka taea ano hoki, ko te tikanga, he nui ake te paheketanga, he pai ake te pupuri i te wai, ina neke atu te viscosity i te 100,000, kaore i te nui te viscosity o te pupuri wai.

7. He aha nga rawa matua o te hydroxypropyl methyl cellulose?
HPMCrauemi mata matua: miro para, chloromethane, propylene oxide, etahi atu rauemi mata, papa alkali, waikawa toluene.

8. Hydroxypropyl methyl cellulose i roto i te tono o te paura putty, te mahi matua, ahakoa matū?
I roto i te paura putty, te matotoru, te pupuri wai me te hanga o nga mahi e toru. Ko te matotoru, ka taea te whakakakahu i te cellulose ki te whakatārewatanga, kia noho rite tonu te otinga ki runga me raro ki 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.

9 Ko te .hydroxypropyl methyl cellulose he ether cellulose kore-ionic, no reira he aha te mea-kore?
E ai ki nga korero a te reimana, karekau nga matū kore e uru ki nga tauhohenga matū.
Ko te CMC(carboxymethyl cellulose) he cellulose cationic, no reira ka noho te konupūmā hina ki te toenga pīni.

10. He aha nga tohu hangarau matua o te hydroxypropyl methyl cellulose?
Te ihirangi Hydroxypropyl
ihirangi Methyl
pokey
pungarehu
Te mate taimaha maroke

11. He aha te hononga ki te pāmahana reera o te hydroxypropyl methyl cellulose?
Ko te mahana o te kiri o te HPMC e pa ana ki te ihirangi methoxyl, ko te iti o te methoxyl ihirangi, ko te teitei ake o te pāmahana gel.

12 paura putty topata paura me te hononga hydroxypropyl methyl cellulose?
Mena he ngoikore te pupuri wai a HPMC, ka puta te paura.

13 hydroxypropyl methyl cellulose in the application of putty powder, putty powder mirumiru he aha te take?
HPMC i roto i te paura putty, te matotoru, te pupuri wai me te hanga o nga mahi e toru, te take o te mirumiru:
1. )He nui rawa te wai ka tapiritia.
2.) Ko te paparanga o raro karekau i maroke, katahi ka waruhia he paparanga ki runga, he ngawari hoki te pupuhi.

14. He aha te rereketanga o te wai matao-wairewa tere-wairewa me te wera-wairewa hydroxypropyl methyl cellulose i roto i te tukanga whakaputa?
HPMC wai matao momo otinga inamata i muri i te maimoatanga mata glyoxal, hoatu i roto i te wai matao hohoro marara, engari e kore e tino memeha, pokey ake, kua rewa. 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.

15. He aha te haunga hydroxypropyl methyl cellulose?
Ko te HPMC i hangaia e te tikanga whakarewa he mea hanga ki te toluene me te waipiro isopropyl. Mena kaore i te tino pai te horoinga, ka toe etahi reka. (Ko te whakaora i te whakakorenga te tikanga matua mo te kakara)

16. Me pehea te whiriwhiri hydroxypropyl methyl cellulose e tika ana mo nga whakamahinga rereke?
Putty paura: nga whakaritenga pupuri wai teitei, pai te hanga hototahi (tohu tohu: 75AX100000)
Moata hanga sima noa: te pupuri i te wai teitei, te parenga teitei o te pāmahana, te pokey tonu (koeke e taunakitia ana: 75AX150000)
Te whakamahi i te kapia hanga: nga hua inamata, te pokey teitei. (Tau waitohu e taunakitia ana: 75AX200000S)
Moata Gypsum: te pupuri wai teitei, te pokey reo me te iti, te pokey tonu (tohu tohu: 75AX75000)

17. He aha te ingoa ingoa mo te hydroxypropyl methyl cellulose?
HPMC ko MHPC ingoa ingoa hydroxypropyl methyl cellulose, cellulose hydroxypropyl methyl ether.

18. He aha te rereketanga o te hydroxypropyl methyl cellulose me teMC?
Ko te MC he methyl cellulose, he miro parakore i muri i te maimoatanga alkali, mewaro pūhaumāota hei kaihoko etherifying, na roto i te raupapa o nga tauhohenga me te hanga o te cellulose ether, ko te tohu whakakapinga ko te 1.6-2.0, he rereke te rereke o te rereke rereke, no te kore-katote cellulose etera.
(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, he nui te taapiri, he iti te pai, he nui te pokey, he nui te reeti pupuri wai, he nui te awe o te taapiri ki te reeti pupuri wai, ko te pokey me te reeti pupuri wai kaore i raro iho i te hononga, ko te reiti whakapeka te nuinga ka whakawhirinaki ki te tohu whakarerekētanga mata me te pai o te matūriki o te matūriki cellulose. Methyl cellulose me te hydroxypropyl methyl cellulose kei runga ake nei he maha nga etera cellulose he nui ake te reeti pupuri wai.
(2) Methyl cellulose e taea te rewa i roto i te wai matao, ka uaua te wai wera ki te memeha, tona otinga wai i roto i te pH = 3-12 awhe he tino pūmau, me te māngaro, me ētahi atu, me te maha surfactants i hototahi pai, ka tae te pāmahana te pāmahana gelation, reira ka he āhuatanga gelation.
(3) Ko nga huringa pāmahana ka tino pa ki te reiti pupuri wai o te methyl cellulose, i te nuinga o te waa, ka teitei ake te pāmahana, ka kino te pupuri wai. Mena ka neke ake te mahana o te kumete ki te 40 nga nekehanga, ka tino kino te pupuri i te wai o te methyl cellulose, ka tino pa ki te hanga o te moata.
(4)Methyl cellulosehe tino awe ki te hanga me te piri o te moata. Ko te whakapiringa i konei e pa ana ki te kaha piri i rongohia i waenga i te taputapu me te taputapu pakitara e te kaimahi, ara, 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.