He aha nga tikanga whakakore o te hydroxypropyl methylcellulose HPMC?

1. 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 whakaahuatia ana e whai ake nei:

1), tāpirihia te 1/3, te 2/3 rānei o te nui o te wai e hiahiatia ana ki roto i te ipu, ka whakamahana ki te 70°C, whakamararatia te HPMC kia rite ki te tikanga o te 1), me te whakarite i te 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. ——Kei te whakamahi nga kaihanga paura putty me te mota 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°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 whakakorikori.

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. I tenei wa, karekau he viscosity o te wai, no te mea ka marara noa te HPMC ki 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. 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 ki te paura putty me te kumete, me te kapia wai me te peita, kaore he tohu.

3. 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, karaima, 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.

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: Putty paura te tikanga 100,000 yuan, me nga whakaritenga mo te kumete he teitei ake, a he mea ngawari ki te whakamahi 150,000 yuan. I tua atu, ko te mahi tino nui o te HPMC ko te pupuri wai, whai muri mai i te whakamaroketanga. 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 paura konupūmā pungarehu ko: he ranunga o Ca(OH)2, CaO me te iti o te CaCO3, CaO+H2O=Ca(OH)2—Ca(OH)2+CO2=CaCO3↓+H2O Ash calcium kei roto i te wai me te hau I raro i te mahi a te CO2, ka hangaia te konupūmā pākawa waro, i te mea ko te HPMC anake te pupuri i te wai, e awhina ana i te pai ake o te tauhohenga o te konupūmā pungarehu, me te kore e uru 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, ko te kore-ion he matū 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 i nga katote katoo, engari ka noho ki 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 wera o te kiri o te HPMC e pa ana ki tana ihirangi methoxy, ko te iti iho o te ihirangi methoxy↓, ko te teitei ake o te mahana.

12. Me pehea te whiriwhiri i te hydroxypropyl methylcellulose (HPMC) e tika ana 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 wai matao 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, ehara i te mea 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.