1. He aha te whakamahinga matua o te hydroxypropyl methylcellulose (HPMC)?
——Whakautu: Kei te whakamahia nuitia te HPMC ki nga taonga hangahanga, 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), 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 marara te momo hua inamata ki 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 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, kaore he whakapae.
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, a ko te nuinga o te HPMC i hangaia i Hebei he 80 mesh, me te pai ake o te pai, te nuinga o te korero, ka pai ake.(3) Whakawhiti marama: hoatu te hydroxypropyl methylcellulose (HPMC) ki roto i te wai hei hanga i te colloid marama, ka tirohia tona 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 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. .(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 pokey tika o te hydroxypropyl methylcellulose (HPMC)?
——Whakautu: Ko te paura Putty te tikanga 100,000 yuan, me 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.
6. 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.
7. 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.
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 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.
9. Ko te HPMC he ether cellulose 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 chloride (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 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 iho o te ihirangi methoxy↓, ka teitei ake te pāmahana reera.
11. 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.
12. He aha te rerekeetanga o te momo wai matao inamata me te momo wera-wairewa o te hydroxypropyl methylcellulose i roto i te tukanga whakaputa?
——Whakautu: Ko te momo wai matao o HPMC he mea rongoa ki te mata ki te glyoxal, a ka marara tere 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.
13. 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.
14. Me pehea te whiriwhiri i te hydroxypropyl methylcellulose (HPMC) e tika ana 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.
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. 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.
17. 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 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 cellulose kore-katote 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 kaihoko whakaeera, me te maha o nga 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 nui ake te mahana 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 viscosity o te hydroxypropyl methylcellulose e pa ana ki tona taumaha ngota, me te nui ake o te taumaha o te ngota, ka nui ake te viscosity.Ka pa ano te pamahana ki tona pokey, i te pikinga o te pāmahana, ka heke te pokey.Heoi, he iti ake te paanga o tona pokey teitei i te methyl cellulose.He pūmau tana otinga ina penapena ki te pāmahana rūma.
(3) 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.
(4) Ko te pupuri i te wai o te hydroxypropyl methylcellulose e whakawhirinaki ana ki te nui o te taapiri, te viscosity, me etahi atu, me te tere o te pupuri wai i raro i te nui o te taapiri he nui ake i tera o te methyl cellulose.
(5) Ka taea te whakauru Hydroxypropyl methylcellulose ki te wai-wairewa polymer pūhui ki te hanga i te otinga rite me te teitei pokey.Pērā i te waipiro polyvinyl, te māngaro ether, te kāpia huawhenua, aha atu.
(6) Ko te piri o te hydroxypropyl methylcellulose ki te hanga kumete he teitei ake i tera o te methylcellulose.
(7) Ko te Hydroxypropyl methylcellulose he pai ake te aukati i te methylcellulose, a he iti ake te whakaheke o tana otinga e nga enzymes i te methylcellulose.
18. He aha te mea e tika ana kia arohia ki roto i te tino tono o te hononga i waenga i te pokey me te pāmahana o te HPMC?
——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 moata kapia paura me vitrified microbead waiariki moata waiariki.
Ko te take: ko te pokey teitei, ko te kumete e kore e ngawari ki te taka, ki te whakairi, ki te whakapai ake i 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: Noema-21-2022