1. He aha te whakamahinga matua o te hydroxypropyl methylcellulose (HPMC)?
——Whakautu: Ko te Hydroxypropyl methylcellulose e whakamahia nuitia ana i roto i nga taonga hanga, paninga, kapia waihanga, karaima, rongoa, kai, kakano, ahuwhenua, whakapaipai, tupeka me etahi atu ahumahi. Ka taea te wehea te Hydroxypropyl methylcellulose ki te tohu hangahanga, te karaehe kai me te tohu rongoa e ai ki tana tono. 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), a he aha nga rereketanga o o raatau whakamahinga?
——Whakautu: Ka taea te wehewehea te HPMC ki te momo inamata me te momo wetewete wera. Ka tere marara nga momo momo hua i roto i te wai matao ka ngaro ki te wai. I tenei wa, karekau he pokarekare o te wai na te mea ka marara noa te HPMC ki te wai karekau 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 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 timatanga, ka tere te rewa ina whakamatao. E rua nga tikanga angamaheni e whakaahuatia ana e whai ake nei:
1) 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), 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.
4. Me pehea te whakatau i te kounga o te hydroxypropyl methylcellulose (HPMC) ngawari me te mohio?
——Whakautu: (1) Maama: Ahakoa kaore e taea e te ma te whakatau mena he ngawari te whakamahi i te 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. (2) 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 ake o te pai, ko te tikanga, ko te pai ake. (3) Whakawhiti marama: hoatu te hydroxypropyl methylcellulose (HPMC) ki roto i te wai kia hanga he colloid maramara, ka titiro ki tana whakawhiti marama. Ko te nui o te whakawhiti marama, ko te pai ake, e tohu ana he iti ake nga insolubles kei roto. . I te nuinga o te wa he pai te uruhanga o nga reactors poutū, he kino ake te kino o nga reactors whakapae, engari ehara i te mea he pai ake te kounga o nga reactors poutū i te pai o nga reactors whakapae, a ka whakatauhia te kounga hua e te maha o nga mea. (4) Te taumahatanga motuhake: Ko te nui ake o te taumahatanga motuhake, ko te taumaha ake ka pai ake. He nui te motuhake, te tikanga na te mea 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 te nui o te hydroxypropyl methylcellulose (HPMC) i roto i te paura putty?
——Whakautu: Ko te nui o te HPMC e whakamahia ana i roto i nga mahi mahi ka rereke i runga i te ahuarangi, te pāmahana, te kounga o te konupūmā pungarehu o te rohe, te tauira o te paura putty me te "kounga e hiahiatia ana e nga kaihoko". Ko te tikanga, kei waenganui i te 4 kg ki te 5 kg. Hei tauira: ko te nuinga o te paura putty i Beijing he 5 kg; Ko te nuinga o te paura putty i Guizhou he 5 kg i te raumati me te 4.5 kg i te takurua; he iti te nui o te putty i Yunnan, te tikanga 3 kg ki te 4 kg, etc.
6. He aha te pokey tika o te hydroxypropyl methylcellulose (HPMC)?
——Whakautu: Ko te tikanga, he nui te 100,000 yuan mo te paura putty, he nui ake nga whakaritenga mo te kumete, me te 150,000 yuan e hiahiatia ana kia ngawari te whakamahi. 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.
7. He aha nga tohu hangarau matua o te hydroxypropyl methylcellulose (HPMC)?
——Whakautu: Hydroxypropyl content and viscosity, 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. Ko te mea he pokey teitei he pai ake te pupuri i te wai, he ahua (kaore i te tino tika), a ko te mea he nui te pokey he pai ake te whakamahi ki te kumete sima.
8. He aha nga mea matua o te hydroxypropyl methylcellulose (HPMC)?
—— Whakautu: Ko nga rawa matua o te hydroxypropyl methylcellulose (HPMC): miro para, methyl chloride, propylene oxide, me etahi atu rauemi mata, houra caustic, waikawa, toluene, isopropanol, etc.
9. 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 HPMC mo te whakamatotoru, 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.
10. Ko te HPMC he cellulose ether kore-ionic, na he aha te mea kore-katote?
——Whakautu: Ki nga korero a te reimana, ko nga katote kore 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 ki nga katote katoo, engari ka noho i roto i te ahua o te ngota ngota.
11. He aha te paanga o te reera o te hydroxypropyl methylcellulose ki te aha?
——Whakautu: Ko te mahana o te reera o te HPMC e pa ana ki tona ihirangi methoxy. Ko te iti o te ihirangi methoxy↓, ka teitei ake te pāmahana rea↑.
12. 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, he iti nei 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. Mo nga take motuhake, tirohia te patai 9.
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 rongoa-mata ki te glyoxal. Ka tere te marara i roto i 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. Me pehea te whiriwhiri i te hydroxypropyl methylcellulose (HPMC) pai mo nga kaupapa rereke?
——Whakautu: Ko te tono paura putty: he iti noa nga whakaritenga, he 100,000 te viscosity, ka 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.
16. He aha te ingoa o te hydroxypropyl methylcellulose?
——Whakautu: Hydroxypropyl Methyl Cellulose, English: Hydroxypropyl Methyl Cellulose Abreviation: HPMC or MHPC Alias: Hypromellose; Cellulose hydroxypropyl methyl ether; Hypromellose, Cellulose, 2-hydroxypropylmethyl Cellulose ether. Cellulose hydroxypropyl methyl ether Hyprolose.
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 HPMC mo te whakamatotoru, 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.
18. He aha te tauira o te paura putty mo nga pakitara o roto me waho?
——Whakautu: Puti paura mo nga pakitara o roto: konupūmā taumaha 800KG konupūmā hina 150KG (te māngaro ether, te kākāriki parakore, te pentagentite, te waikawa citric, te polyacrylamide, me etahi atu ka taea te taapiri tika)
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
19. He aha te rereketanga o HPMC me MC?
——Whakautu: Ko te MC he methyl cellulose, he mea hanga mai i te cellulose ether ma te rongoa i te miro parakore ki te kawakawa, te whakamahi methane chloride hei kaihoko whakaeera, me te haere i roto i te raupapa tauhohenga. Ko te tikanga, ko te 1.6~2.0 te tohu whakakapinga, he rereke ano te whakarewatanga me nga nekehanga rereke o te whakakapi. No te ether cellulose kore-ionic.
(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, mena he nui te taapiri, he iti te pai, he nui te pokey, he nui te reeti pupuri wai. I roto i a raatau, ko te nui o te taapiri he tino paanga ki te reiti pupuri wai, a, ko te taumata o te potata kaore i te rite ki te taumata o te reeti pupuri wai. Ko te tere o te whakakore i te nuinga ka whakawhirinaki ki te tohu o te whakarereketanga o te mata o nga matūriki cellulose me te pai o te matūriki. I roto i nga ethers cellulose i runga ake nei, ko te methyl cellulose me te hydroxypropyl methyl cellulose he teitei ake te reiti pupuri wai.
(2) He wairewa te Methylcellulose ki te wai matao, a ka uaua te memeha ki te wai wera. He tino pumau tona otinga wai i te awhe o te pH=3~12. He pai te hototahitanga ki te māngaro, kapia guar, aha atu, me te maha o nga surfactants. Ka tae te pamahana ki te mahana o te wai, ka puta te wai.
(3) Ko nga 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 pāmahana moata ki te 40°C, ka tino heke te pupuri wai o te methyl cellulose, ka tino pa ki te hanga o te moata.
(4) Ko te Methyl cellulose he painga nui ki te hanga me te whakapiri o te moata. Ko te “adhesion” i 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 tiketike te adhesiveness, he nui te parenga kutikuti o te moata, me te kaha e hiahiatia ana e nga kaimahi i roto i te tukanga o te whakamahinga he nui ano hoki, a he kino te mahi hanga o te moata. Ko te piri o te Methyl cellulose kei te taumata ngawari i roto i nga hua cellulose ether.
Ko te HPMC he hydroxypropyl methylcellulose, he katote-kore te cellulose i konatunatua etera i hangaia mai i te miro parakore i muri i te whakamaaramatanga, ma te whakamahi i te propylene oxide me te methyl chloride hei maataki whakaeera, a na roto i te raupapa tauhohenga. Ko te tohu o te whakakapinga ko te tikanga 1.2~2.0. He rereke ona ahuatanga na te rereke o nga owehenga o te ihirangi methoxyl me te ihirangi hydroxypropyl.
(1) He ngawari te wairewa Hydroxypropyl methylcellulose i roto i te wai matao, a ka raru ki te rewa i te wai wera. Engari he tino teitei ake te pāmahana o te wai wera i tera o te methyl cellulose. Ko te memehatanga i roto i te wai matao ka tino pai ake ki te methyl cellulose.
(2) Ko te Hydroxypropyl methylcellulose he pumau ki te waikawa me te kawakawa, a he tino pumau tona otinga wai i roto i te awhe o te pH = 2 ~ 12. He iti te paanga o te houra me te wai kotakota ki runga i ana mahi, engari ka taea e te kawakore te tere ake i te memeha me te whakanui ake i te pokey. Ko te Hydroxypropyl methylcellulose he pumau ki nga tote noa, engari ka nui te kukū o te wairewa tote, ka piki ake te pokey o te otinga hydroxypropyl methylcellulose.
(3) Ka taea te whakauru i te Hydroxypropyl methylcellulose ki nga pūhui polymer wairewa-wai hei hanga i tetahi otinga pokey teitei ake. Pērā i te waipiro polyvinyl, te māngaro ether, te kāpia huawhenua, aha atu.
(4) Ko te whakapiri o te hydroxypropyl methylcellulose ki te hanga kumete he teitei ake i tera o te methylcellulose.
(5) Ko te Hydroxypropyl methylcellulose he pai ake te aukati i te methylcellulose, a, he iti ake te whakahekenga o tana otinga e nga enzymes i te methylcellulose.
20. He aha te mea e tika ana kia aro ki roto i te tino tono o te hononga i waenga i te pokey me te mahana o te hydroxypropyl methylcellulose?
——Whakautu: Ko te pokey o te HPMC he taurite 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 rapa rapa paura me vitrified microbead waiariki moata waiariki.
Take: He teitei te pokey, karekau e ngawari te taka, ka totohu, ka pai ake te hanga.
Engari i te nuinga o te korero, ko te teitei o te pokey, ko te pai ake o te pupuri wai. Na reira, i te whakaaro ki te utu, he maha nga wheketere moata paura maroke ka whakakapi i te cellulose reo me te iti (20000-40000) me te cellulose reo-viscosity (20000-40000) hei whakaiti i te nui o te taapiri.
Wā tuku: Nov-17-2022