He aha te Hydroxypropyl Methylcellulose HPMC?

Ko te Hydroxypropyl Methylcellulose HPMC, e mohiotia ana ko Cellulose ether, he polymer waihanga, he wai-wairewa i ahu mai i te cellulose. Ka mahia ma te whakarereke i te cellulose taiao, koinei te waahanga hanganga tuatahi o nga tipu, na roto i te raupapa o nga tukanga matū.

Ko te hydroxypropyl methylcellulose te taumata ahumahi e tohuhia ana e te pokey. Ko te tikanga ko nga tohu e whai ake nei (i runga i te viscosity).

Te pokey iti: Ko te 400 te nuinga e whakamahia ana mo te kumete whakamaarama whaiaro, engari he mea kawemai. Te take: he iti te pokey, ahakoa he ngoikore te pupuri wai, engari he pai te whakataurite, he tiketike te kiato moata.

Pokey Waenga me te teitei: Ko te 20000-70000 te nuinga e whakamahia ana mo te whakapiri tira, te kaitapao, te moata kapiti-aukati, te moata honohono waiariki, me etahi atu take: te pai o te mahi, te iti o te wai, me te moata teitei.

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

HPMCKei te whakamahia nuitia i roto i nga taonga hanga, paninga, kapia waihanga, uku, rongoa, kai, pueru, ahuwhenua, whakapaipai, tupeka me etahi atu ahumahi. Ka taea te wehewehea te HPMC ki: whare, kai me te rongoa. I tenei wa, ko te nuinga o nga whare i hangaia i roto i te whare he reanga hoahoanga. I roto i te waahanga hanga, he tino nui te nui o te paura putty, tata ki te 90% ka whakamahia mo te hanga paura putty, ko te toenga ka whakamahia hei moata ciment me te kopa.

He maha nga momo hydroxypropyl methylcellulose (HPMC). He aha te rereketanga o ta raatau whakamahinga?

HPMCka taea te wehewehe ki nga hua tere-whakarewa me te wera-whakarewa, nga hua tere. Ka tere te marara ki 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, kaore he tino rewa. Tata ki te 2 meneti, ka nui haere te pokey o te wē, ka hanga he colloid viscous mārama. Ko te momo hua wera-rewa, i roto i te take o te wai makariri, ka tere te marara i roto i te wai wera ka ngaro i roto i te wai wera. Ka heke te pāmahana ki tetahi pāmahana, ka puta te pokey tae noa ki te hanganga o te colloid viscous marama. Ko te momo wera-whakarewa ka taea anake te whakamahi i te paura putty me te moata. I roto i te kapia wai me te peita, ka puta he ahua o te kopiri, kaore e taea te whakamahi. E wātea ana i roto i te tini o nga tono, i roto i te paura putty me te moata, me nga kopa wai me nga paninga. Kaore he contraindications.

He aha nga tikanga whakakore o te hydroxypropyl methylcellulose (HPMC)?

Tikanga wetewete wai wera: I te mea karekau te HPMC e rewa ki te wai wera, ka taea te whakamararatia te HPMC tuatahi ki te wai wera ka tere te rewa i te wa whakamatao. E rua nga tikanga e whai ake nei: 1), ka tuu ki roto i te ipu Whakauruhia te nui o te wai wera me te wera ki te 70°C. I āta tapirihia te Hydroxypropyl methylcellulose me te whakaoho puhoi, ka maanu te HPMC ki runga i te mata o te wai, katahi ka hangaia he slurry, ka whakamataohia te slurry ki te whakaoho. 2) Te taapiri i te 1/3, te 2/3 ranei o te nui o te wai e hiahiatia ana ki te ipu me te whakamahana ki te 70°C, ka whakamararatia te HPMC kia rite ki te 1) ki te whakarite i te slurry wai wera; ka tāpirihia te toenga o te wai matao ki te wai wera I roto i te slurry, i whakamataohia te ranunga i muri i te whakaoho. Te tikanga whakaranu i te paura: ka konatunatua te paura HPMC ki te nui o etahi atu matū paura, ka konatunatua ki te whakaranu, ka rewa ki te wai. I tenei wa, ka taea te whakakore i te HPMC me te kore agglomeration, no te mea he iti noa te HPMC o ia kokonga iti. Ka memeha tonu te paura ina pa ana ki te wai. – Ka whakamahia tenei tikanga e nga kaihanga paura putty me nga kaihanga moata. Ko te Hydroxypropyl methylcellulose (HPMC) e whakamahia ana hei whakakaha me te pupuri wai i roto i te kumete putty.

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

(1) Maama: Ahakoa kaore e taea e te maama te whakatau he ngawari te whakamahi a HPMC, a, ki te taapiri atu ki te kanapa i te wa o te mahi whakaputa, ka pa ki tona kounga. Engari, ko nga hua pai he ma te nuinga. (2) Pai: Ko te pai o te HPMC he 80 mesh me te 100 mesh, he iti ake te 120 mesh. Ko te pai o te pai, ko te pai ake i te nuinga. (3) Whakawhiti: Kuhua te hydroxypropyl methylcellulose (HPMC) ki roto i te wai kia hanga he colloid maramara, ka titiro ki tona maramatanga. Ko te pai ake o te whakawhiti, ka iti ake te matū korekore. . He pai te uruhanga o te reactor poutū, me te kino o te reactor whakapae, engari ehara i te mea he pai ake te kounga o te reactor poutū i to te kettle. Ko te kounga o te hua ka whakatauhia e te maha o nga mea. (4) Te taumaha motuhake: Ko te nui ake o te taumahatanga motuhake, ka nui ake te taumaha. He nui te ōwehenga, i te nuinga o te waa na te mea he tiketike te ihirangi o te roopu hydroxypropyl, he nui te ihirangi o te roopu hydroxypropyl, he pai ake te pupuri wai.

He aha te nui o te hydroxypropyl methylcellulose (HPMC) i roto i te paura putty?

Ko te nui o te hanga HPMCwhakamahia i roto i ngā tono mahi rerekē ki te āhuarangi, pāmahana, te kounga konupūmā pungarehu rohe, tātai o te paura putty me "kounga e hiahiatia ana e te kiritaki". I roto i nga tikanga whanui, i waenga i te 4 kg me te 5 kg. Hei tauira: te wahi matao paura putty, te nuinga hoatu 5 kg; Ko te nuinga o te waahi wera ko te 5 kg i te raumati me te 4.5 kg i te takurua.

He aha te pokey o te hydroxypropyl methylcellulose (HPMC)?

Ko te paura putty taiepa ko te tikanga 100,000, me te moata maroke te ki kia teitei. Me whakamahi 150,000. I tua atu, ko te mahi nui a HPMC ko te pupuri i te wai, whai muri mai i te whakamaroketanga. I roto i te paura putty, i te mea he pai te pupuri i te wai, he iti iho te viscosity (70,000-80,000), ka taea hoki. Ko te tikanga, he nui ake te viscosity, he pai ake te pupuri i te wai. Ka nui ake te pokey ki te 100,000, ko te hua o te pokey ki te pupuri wai ehara i te nui rawa.

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

Ko te ihirangi Hydroxypropyl me te viscosity, ko te nuinga o nga kaiwhakamahi kei te awangawanga mo enei tohu e rua. Mena he nui te ihirangi hydroxypropyl, he pai ake te pupuri wai. Viscosity, pupuri wai, whanaunga (kaore i te tino), me te pokey teitei, pai ake i roto i te kumete ciment.

He aha nga rauemi mata matua mo te hydroxypropyl methylcellulose (HPMC)?

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

He aha te mahi matua a HPMC ki te tono paura putty?

Ko te HPMC te mahi o te whakapakeke, te pupuri wai me te hanga i roto i te paura putty. Whakamatotoru: Ka taea te whakamatotoru i te Cellulose ki te whakatarewa, kia rite te ahua o te otinga, me te aukati i te sag. Te pupuri wai: Ka maroke te paura putty, ka tauhohe te konupūmā pungarehu awhina i raro i te mahi a te wai. Hanganga: He whakahinuhinu te whakahinuhinu o te Cellulose, ka pai te mahi o te paura putty. Karekau a HPMC e uru ki roto i nga tauhohenga matū, 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 tangohia te paura putty i runga i te pakitara mai i te pakitara, ka kuia hei paura, ka whakamahia ano, kaore e pai, na te mea kua hanga he matū hou (calcium carbonate). ). Ko nga waahanga matua o te pungarehu konupūmā paura ko: Ca(OH)2, he ranunga o CaO me te iti o te CaCO3, CaO+H2O=Ca(OH)2-Ca(OH)2+CO2=CaCO3+H2O konupūmā pungarehu i roto te wai me te hau I raro i te mahi a te CO2, ka hangaia te konupūmā pākawa waro, a 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 ki tetahi tauhohenga ake. 

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

Ko te tikanga, ko te katote kore he matū karekau i roto i te wai, karekau hoki i te katote. Ko te Ionization e pa ana ki te tukanga e wetewete ai te electrolyte ki roto i te katote e neke haere noa ana i roto i tetahi whakarewa motuhake penei i te wai, i te waipiro ranei. Hei tauira, ko te tote e kainga ana ia ra, te konutai pūhaumāota (NaCl), ka katote hei whakaputa i nga katote konutai neke-kore (Na+) he pai te utu me te pūhaumāota (Cl) he toraro. Arā, ka tukuna te HPMC ki roto i te wai, ā, karekau e wehe ki roto i ngā katote katoo, engari kei roto i te ahua o te ngota ngota.

He aha te pāmahana reera o te hydroxypropyl methylcellulose?

Ko te pāmahana reera o te HPMC e pa ana ki tana ihirangi methoxy. Ko te iti ake o te ihirangi methoxy, ka teitei ake te pāmahana reera.

He hononga ano te paura paura putty ki te HPMC?

Ko te paura o te paura putty te nuinga e pa ana ki te kounga o te konupūmā hina, me te iti o te mahi ki te HPMC. Ko te iti o te konupūmā konupūmā o te konupūmā pungarehu me te ōwehenga tika o CaO me Ca(OH)2 i roto i te konupūmā pungarehu ka mate te paura. Mena e pa ana ki te HPMC, na mena he ngoikore te pupuri wai o te HPMC, ka mate ano te paura.

He aha te rereketanga i waenga i te momo wai matao inamata me te momo wairewa wera o te hydroxypropyl methylcellulose i roto i te tukanga whakaputa? HPMC wai matao momo inamata he mata tukinotia ki glyoxal , a ka tere marara i roto i te wai matao, engari e kore e tino memeha. Ka piki te pokey, ka rewa. Ko te ahua whakarewa wera kaore i te rongoa i te mata ki te glyoxal. Ka nui te nui o te glyoxal, ka tere te marara, engari he puhoi te pokey. 

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

Ko te HPMC i hangaia e te tikanga whakarewa ka whakamahi i te toluene me te waipiro isopropyl hei whakarewa. Mena kaore i te tino pai te horoinga, ka toe etahi reka.

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

Te tono o te paura putty: he iti ake te whakaritenga, he 100,000 te viscosity, he pai, ko te mea nui kia pai ake te wai. Te tono mo te moata: nga whakaritenga teitei, te pokey teitei, te 150,000 he pai ake. Tono kapia: Me hiahia momo hua inamata, te pokey teitei.

He aha te ingoa o te hydroxypropyl methylcellulose?

Hydroxypropyl methylcellulose, HydroxypropylMethylCellulose Whakapoto: HPMC or MHPC ingoa ingoa: hypromellose; cellulose hydroxypropyl methyl ether; Hypromellose, Cellulose ether, 2-hydroxypropylmethyl Cellulos eether. Cellulose hydroxypropyl methyl ether ,Hyprolose.

Ko te tono o te HPMC ki te paura putty, he aha te take o te pahuka i te paura putty?

Ko te HPMC te mahi o te whakapakeke, te pupuri wai me te hanga i roto i te paura putty. Kaua e uru ki tetahi tauhohenga. Te take o te mirumiru: 1, he nui rawa te wai. 2, karekau te paparanga o raro e maroke, waruhia noa he paparanga ki runga, he ngawari hoki ki te pahuka.　

Te tātai paura putty pakitara o roto me waho?

Te paura putty pakitara o roto: konupūmā taumaha 800KG konupūmā hina 150KG (te māngaro ether, te matomato parakore, te oneone pene, te waikawa citric, te polyacrylamide, me etahi atu ka taea te whiriwhiri tika hei taapiri)

Te paura putty pakitara o waho: ciment 350KG, konupūmā taumaha 500KG, kiripaka kirikiri 150KG, taherapa Paura 8-12KG, cellulose etera 3KG, māngaro etera 0.5KG, muka rakau 2KG

He aha te rereketanga i waenga i te HPMC me te MC?

Ko te MC he methyl cellulose. I muri i te maimoatanga o te miro parakore ki te kawakawa, ka whakamahia te chloromethane hei kaihoko whakamaarama, ka mahia he raupapa tauhohenga hei whakarite i te etera cellulose. Ko te tohu whakakapinga he 1.6 ki te 2.0 te tikanga, ka rereke te tohu whakakapinga i runga i te whakarewatanga. No te mea nonionic cellulose ether.

(1) Ko te pupuri 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 nui o te taapiri, he iti te pai, he nui te pokey, he nui te reiti pupuri wai. Ko te nui o te taapiri he tino awe ki te reiti pupuri wai, a, kaore i te rite te taumata pokey ki te reiti pupuri wai. Ko te tere o te memeha ka whakawhirinaki te nuinga ki te tohu o te whakarereketanga o te mata o nga matūriki cellulose me te pai o nga matūriki. I roto i nga ethers cellulose i runga ake nei, ko te methylcellulose me te hydroxypropylmethylcellulose he nui te reiti pupuri wai.

(2) He wairewa te Methylcellulose i roto i te wai matao, a he uaua ki te memeha ki te wai wera. He tino pumau te wairewa wai i te awhe pH=3~12. He pai te hototahitanga ki te māngaro, te kapia guar me te maha atu o nga haumanu. Ka tae te pamahana ki te pamahana wetewete, ka puta he ahuatanga o te weewete.

(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 neke ake te mahana o te moata ki te 40 ° C, ka tino paheke te pupuri wai o te methyl cellulose, ka tino pa ki te mahi o te moata.

(4) Ko te Methyl cellulose he painga nui ki te mahi me te piri o te moata. Ko te “Adhesiveness” kei konei e pa ana ki te kaha whakapiri i rongohia i waenga i te taputapu tono a te kaimahi me te tïpako pakitara, 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 te kaimahi i te wa e whakamahia ana, a, he ngoikore te mahi o te moata.

Ko te adhesion Methylcellulose he takawaenga i roto i nga hua cellulose ether. Ko te HPMC he hydroxypropylmethylcellulose, he cellulose nonionic i konatunatuahia e te raupapa o nga tauhohenga ma te whakamahi i te waikura acetal me te methyl chloride hei kaihoko whakakoi i muri i te whakamaaramatanga o te miro parakore. Ko te tohu whakakapinga he 1.2 ki te 2.0. He rereke tona ahuatanga i runga i te owehenga o te ihirangi methoxyl me te ihirangi hydroxypropyl.

(1) He ngawari te wairewa Hydroxypropyl methylcellulose ki te wai matao, a he uaua pea ki te memeha ki te wai wera. Heoi ano, he tino teitei ake te pāmahana o te wai wera i tera o te methyl cellulose. He pai ake te whakakore i te wai matao i te methyl cellulose. -

(2) Ko te viscosity o te hydroxypropylmethylcellulose e pa ana ki te taumaha ngota o taua mea, me te nui o te viscosity ina he nui te taumaha ngota. Ka pa ano te pamahana ki tona poiketanga, ka piki te pāmahana, ka heke te pokey. Heoi, he iti ake te pāmahana o tona pokey i te methyl cellulose. He pūmau tana otinga i te pāmahana rūma.

(3) Ko te Hydroxypropyl methylcellulose he pumau ki nga waikawa me nga turanga, a he tino pumau tona otinga wai i roto i te awhe o te pH = 2 ~ 12. Ko te houra me te wai kotakota kare e whai paanga nui ki o raatau taonga, engari ka tere te kawakore i te tere memeha me te whakanui ake i te pokey. Ko te Hydroxypropyl methylcellulose he pumau ki nga tote whanui, engari ka nui te kukū o te wairewa tote, ka piki ake te pokey o te otinga hydroxypropyl methylcellulose.

(4) Ko te pupuri wai o te hydroxypropyl methylcellulose e whakawhirinaki ana ki te nui o te taapiri, te viscosity, me etahi atu, me te nui o te pupuri wai i raro i te nui o te nui atu i te methylcellulose.

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

(6) Hydroxypropyl methylcellulose he teitei ake te piri ki te kumete i te methyl cellulose.

(7) Ko te Hydroxypropyl methylcellulose he pai ake te parenga enzymatic i te methylcellulose, a he iti ake te kino o tana otinga i te methylcellulose.

Ko te pokey HPMC me te hononga pāmahana, he aha te mea me aro ki nga mahi mahi?

Ko te pokey o te HPMC he taurite ki te pāmahana, ara, ka piki te pokey ki te hekenga o te pāmahana. Ko te pokey o te hua ka kiia e matou ko te hua o te whakamatautau i tana wairewa wai 2% i te mahana o te 20 nga nekehanga Celsius. I roto i nga tono whaitake, i nga waahi he nui te rereketanga o te pāmahana i waenga i te raumati me te hotoke, me tohuhia he mea pai ki te whakamahi i te iti o te pokey i te hotoke, he pai ake te hanga. Ki te kore, ka iti te mahana, ka piki ake te poiketa o te cellulose, a ka waruhia, ka taumaha te ringaringa. Pokey Waenga: 75000-100000 Te nuinga whakamahia mo putty Take: te pupuri wai pokey teitei: 150000-200000 Kei te nuinga whakamahia mo te polystyrene granule moata moata paura me te vitrified microbead moata whakawera. Te take: te pokey teitei, kaore i te ngawari te taka o te kumete Ae, te sag, kua pai ake te hanga. Engari i te nuinga o te waa, ko te teitei ake o te paheketanga, ko te pai ake o te pupuri i te wai, na te maha o nga tipu kumete maroke e whakaaro ana ki te utu, whakakapi i te cellulose reo me te iti ki te cellulose viscosity medium (75000-100000). (20000-40000) hei whakaiti i te moni taapiri.