Kaupapa oHydroxypropyl Methyl Cellulose HPMC

1. 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 karaehe hangahanga, te karaehe kai me te karaehe rongoa i runga i te whakamahinga. I tenei wa, ko te nuinga o nga hua o te kaainga he tohu hanga. I roto i te hanganga hanga, ka whakamahia te paura putty i roto i te nui nui, mo te 90% e whakamahia ana mo te paura putty, ko te toenga ka whakamahia mo te moata ciment me te kopa.

2. He maha nga momo o te hydroxypropyl methylcellulose HPMC. He aha nga rereketanga o o raatau whakamahinga?

——Whakautu: Hydroxypropyl methylcellulose HPMC ka taea te wehea 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. Tino memeha. 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 marama. 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, me te kore he aukati.

3. He aha nga tikanga whakakore o te hydroxypropyl methylcellulose HPMC?

——Whakautu: Tikanga wetewete wai wera: I te mea karekau te HPMC e memeha ki te wai wera, ka taea te marara o te HPMC ki te wai wera i te wa tuatahi, ka tere te memeha ina whakamatao. E rua nga tikanga angamaheni e whakaahua ana

e whai ake nei:

1), tāpirihia te 1/3, 2/3 rānei o te nui o te wai ki roto i te ipu, ka wera ki te 70°C, whakamararatia te HPMC kia rite ki te tikanga o te 1), me te whakarite slurry wai wera; kātahi ka tāpirihia te toenga o te wai matao ki te slurry wai wera, ka whakamataohia te ranunga i muri i te whakaoho.

Te tikanga whakaranu i te paura: uruhia te paura HPMC me te maha o etahi atu matū paura, uru pai ki te whakaranu, katahi ka tapirihia he wai kia memeha, katahi ka taea te rewa te HPMC i tenei wa kaore he whakahiato, no te mea he iti noa te HPMC i roto i ia iti. kokonga Paura, ka memeha tonu ina pa ana ki te wai.——Ko nga kaihanga paura putty me nga moata kei te whakamahi i tenei tikanga. [Hydroxypropyl methylcellulose (HPMC) e whakamahia ana hei whakakaha me te pupuri wai i roto i te kumete paura putty.

2) Kuhua te nui o te wai wera ki roto i te ipu ka whakamahana ki te 70 pea°C. Ko te hydroxypropyl methylcellulose i āta tapirihia i raro i te whakaoho puhoi, i te tuatahi ka maanu te HPMC ki runga i te mata o te wai, katahi ka hanga he slurry, ka whakamataohia i raro i te whakaoho.

4. Me pehea te whakatau i te kounga o te hydroxypropyl methylcellulose (HPMC) ngawari me te mohio?

——Whakautu: (1) Te taumahatanga motuhake: Ki te nui ake te taumahatanga, ka pai ake te taumaha. He nui te ōwehenga, te tikanga na te mea

(2) Maamaa: Ahakoa kaore e taea e te ma ma te whakatau he ngawari te whakamahi a HPMC, a mena ka taapirihia nga maaka ma i te wa o te mahi whakaputa, ka pa ki tona kounga. Engari, ko te nuinga o nga hua pai he pai te ma.

(3) Pai: Ko te pai o te HPMC he 80 mesh me te 100 mesh, he iti ake te 120 mesh. Ko te nuinga o te HPMC i hangaia i Hebei he 80 mata. Ko te pai o te pai, ko te pai ake i te nuinga.

(4) Whakawhiti marama: hoatu te hydroxypropyl methylcellulose (HPMC) ki roto i te wai hei hanga i te colloid marama, ka tirohia tona tuku marama. Ko te teitei o te whakawhiti marama, ko te pai ake, e tohu ana he iti ake nga insolubles i roto. . I te nuinga o te wa he pai te uruhanga 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, a he maha nga mea hei whakatau i te kounga o te hua. . He tiketike te ihirangi o te roopu hydroxypropyl kei roto, he nui te ihirangi o te roopu hydroxypropyl, he pai ake te pupuri wai.

5. He aha nga tohu hangarau matua o te hydroxypropyl methylcellulose (HPMC)?

——Whakautu: Ko te ihirangi Hydroxypropyl me te viscosity, ko te nuinga o nga kaiwhakamahi kei te awangawanga mo enei tohu e rua. Ko te hunga he nui te ihirangi hydroxypropyl he pai ake te pupuri wai. Te pokey teitei, te pupuri wai, te ahua (kaore i te

6. He aha te pokey tika o te hydroxypropyl methylcellulose (HPMC)?

——Whakautu: Ko te paura Putty te tikanga 100,000 yuan, a ko nga whakaritenga mo te kumete he teitei ake, me te 150,000 yuan e hiahiatia ana mo te whakamahi ngawari. I tua atu, ko te mahi tino nui o te HPMC ko te pupuri wai, ka whai i te whakamaaru. I roto i te paura putty, i te mea he pai te pupuri wai me te iti o te pokey (70,000-80,000), ka taea hoki. O te akoranga, te teitei te pokey, te pai te pupuri wai whanaunga. Ka nui ake te pokey ki te 100,000, ka pa te pokey ki te pupuri wai. Kaore i te nui ake. Tino) he pai ake hoki, he teitei ake te viscosity, he pai ake te whakamahi i roto i te kumete ciment.

7. He aha nga mea matua o te hydroxypropyl methylcellulose (HPMC)?

——Whakautu: Ko nga rauemi mata matua o te hydroxypropyl methylcellulose (HPMC): miro parakore, methyl chloride, propylene oxide, me etahi atu rauemi mata, houra caustic, waikawa, toluene, isopropanol, etc.

8. He aha te mahi matua o te tono HPMC ki te paura putty, a he matū te mahi?

——Whakautu: I roto i te paura putty, e toru nga mahi a te HPMC mo te whakapakeke, te pupuri wai me te hanga. Te Whakamatotoru: Ka taea te whakapouri i te Cellulose ki te whakatarewa me te pupuri i te ahua o te otinga ki runga, ki raro, me te aukati i te heke. Te pupuri wai: kia ata whakamaroke te paura putty, me te awhina i te konupūmā pungarehu ki te tauhohe i raro i te mahi a te wai. Hanganga: He whakahinuhinu te whakahinuhinu o te Cellulose, ka pai te hanga o te paura putty. Karekau a HPMC e uru ki nga tauhohenga matū, engari he mahi awhina noa. Ko te taapiri i te wai ki te paura putty me te tuu ki runga i te pakitara he tauhohenga matū, na te mea ka puta he matū hou. Mena ka tangohia e koe te paura putty i runga i te pakitara mai i te pakitara, ka huri hei paura, ka whakamahia ano, ka kore e whai hua na te mea kua hanga he matū hou (konupora warowaiha). ) hoki. Ko nga waahanga matua o te pungarehu konupūmā paura ko: he ranunga o Ca(OH)2, CaO me te iti o CaCO3, CaO+H2O=Ca(OH)2—Ca(OH)2+CO2=CaCO3↓+H2O Ko te konupūmā pungarehu kei roto i te wai me te hau I raro i te mahi a CO2, ka hangaia te konupūmā pākawa waro, i te mea ko te HPMC anake te pupuri i te wai, ka awhina i te pai ake o te tauhohenga o te konupūmā pungarehu, me te kore e uru atu ki tetahi tauhohenga ake.

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

——Whakautu: E ai ki nga korero a te reimana, he matū kore katote e kore 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 kua utaina 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 ki te whakaputa i nga katote konutai (Na+) ka taea te neke haere he pai te utu me nga katote pūhaumāota (Cl) he toraro. Arā, ka tukuna te HPMC ki roto i te wai, karekau e wehe ki roto ki nga katote katoo, engari ka noho i roto i te ahua o te ngota ngota.

10. He hononga kei waenganui i te maturuturunga iho o te paura putty me te HPMC?

——Whakautu: Ko te paura paura o te paura putty te nuinga e pa ana ki te kounga o te konupūmā pungarehu, me te iti o te mahi ki te HPMC. Ko te iti o te konupūmā konupūmā o te konupūmā hina me te ōwehenga hē o CaO me Ca(OH)2 i roto i te konupūmā hina ka mate te paura. Mēnā he pā ana ki te HPMC, mena he ngoikore te pupuri wai a HPMC, ka ngaro te paura.

11. He aha te paanga o te reera o te hydroxypropyl methylcellulose ki te aha?

——Whakautu: Ko te mahana o te kiri o te HPMC e pa ana ki tana ihirangi methoxy. Ko te iti o te ihirangi methoxy↓, ko te teitei ake o te pāmahana reera.

12. Me pehea te whiriwhiri i nga mea e tika anahydroxypropyl methylcellulose (HPMC)mo nga kaupapa rereke?

——Whakautu: Ko te tono o te paura putty: he iti noa nga whakaritenga, a ko te pokey he 100,000, he 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.

13. He aha te rereketanga i waenga i te momo wai matao me te momo wera-wairewa o te hydroxypropyl methylcellulose i roto i te tukanga whakaputa?

——Whakautu: Ko te momo matao-wai tonu o te HPMC he mea rongoa-mata ki te glyoxal, a ka tere marara ki te wai matao, engari kaore e tino memeha. Ka memeha noa ina piki te pokey. Ko nga momo whakarewa wera kaore i te rongoa ki te glyoxal. Mena he nui te nui o te glyoxal, ka tere te marara, engari ka piki haere te pokey, a mena he iti te nui, ka puta ke te ahua.

14. He aha te haunga o te hydroxypropyl methylcellulose (HPMC)?

——Whakautu: Ko te HPMC i hangaia e te tikanga whakarewa ka whakamahi i te toluene me te isopropanol hei whakarewa. Mena kaore i te tino pai te horoinga, ka toe etahi kakara.

15. He aha tetahi ingoa mo te hydroxypropyl methylcellulose?

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

16. He aha te mea me aro ki roto i te tino tono o te hononga i waenga i te pokey me te pāmahana o te HPMC?

——Whakautu: Ko te viscosity o te HPMC he rerekee 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 o te whakamahia mo te matūriki polystyrene matūriki waiariki moata moata kapia paura me vitrified microbead waiariki moata waiariki. Te take: te pokey teitei, kaore i te ngawari ki te taka, ki te whakairi, ki te whakapai ake i te hanga.

17. Ko te tono o te HPMC ki te paura putty, he aha te take o nga mirumiru o te paura putty?

——Whakautu: I roto i te paura putty, e toru nga mahi a te HPMC mo te whakapakeke, te pupuri wai me te hanga. Kaua e uru atu ki tetahi tauhohenga. Nga take o te mirumiru: 1. Kia nui rawa te wai. 2. Ko te paparanga o raro karekau i maroke, waruhia noa tetahi paparanga ki runga, ka ngawari te pahuka.