Hydroxypropyl methyl cellulose raruraru noa

1, he aha te whakamahinga matua o te hydroxypropyl methyl cellulose (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: te tohu hanga, te karaehe kai me te tohu hauora ma te whakamahi.I tenei wa, ko te nuinga o nga whare hanga whare, i roto i te waahanga hanga, he nui te inenga paura putty, tata ki te 90% ka whakamahia hei hanga paura putty, ko te toenga ka whakamahia ki te hanga kumete ciment me te whakapiri.

2, ka wehea te hydroxypropyl methyl cellulose (HPMC) ki etahi, he aha te rereketanga o tana whakamahinga?

Ka taea te wehewehea te HPMC ki nga momo otinga-a-waa me te momo otinga wera, nga momo momo otinga, ka tere marara i roto i te wai matao, ka ngaro i roto i te wai, i tenei wa karekau he polikoki o te wai, no te mea ka marara noa a HPMC ki te wai, kahore he tino rewa.Tata ki te 2 meneti, ka piki haere te pokey o te wē, ka puta he colloid karekau marama.Hua wairewa wera, i roto i te wai matao, e taea te tere marara i roto i te wai wera, ngaro i roto i te wai wera, ka taka te pāmahana ki tetahi pāmahana, pokey puta āta, tae noa ki te hanganga o te colloid kerekere marama.Ka taea anake te whakamahi i te otinga wera ki te paura putty me te kumete, i roto i te kopa wai me te peita, ka puta he ahuatanga roopu, kaore e taea te whakamahi.TE TAUIRA WHAKAMAHI Inamata, HE TOIWAHI KAUPAPA KAUPAPA KAUPAPA KAUPAPA, I TE KAUPAPA KI TE PAURA TAMARIKI ME TE MOMO, I TE KAPI WAI ME TE KAUPAPA KAUPAPA, KA TAE KATOA TE WHAKAMAHI, KORE he aha te WHAKAARO.

3, hydroxypropyl methyl cellulose (HPMC) tikanga memehatanga kei era?

Tikanga wetewete wai wera: Na te mea karekau te HPMC e rewa ki te wai wera, na reira ka taea te whakamararatanga o te HPMC moata ki te wai wera, ka tere te rewa ina whakamatao, e rua nga tikanga angamaheni e whakaahuatia penei ana:

1) Kuhua te nui o te wai wera ki roto i te ipu ka whakamahana ki te 70 ℃.Āta tāpirihia te hydroxypropyl methylcellulose i raro i te whakaoho puhoi, ka timata te HPMC ki te rewa ki runga i te mata o te wai, katahi ka hanga he slurry, i raro i te whakaoho kia whakamatao i te slurry.

2), tāpiri i te nui e hiahiatia ana o 1/3 ranei 2/3 wai i roto i te ipu, me te wera ki te 70 ℃, kia rite ki te tikanga o 1), HPMC marara, te whakarite o te slurry wai wera;Na ka tapirihia te toenga o te wai matao ki te slurry wera, whakaohokia me te whakamatao i te ranunga.

Te tikanga whakaranu i te paura: HPMC paura me te maha o etahi atu mea paura paura, kua tino konatunatua ki te whakaranu, i muri i te taapiri wai kia memeha, katahi ka taea e te HPMC te memeha i tenei wa, engari kaore i te whakakotahi, na te mea ko ia kokonga iti, he iti noa te paura HPMC. , ka memeha tonu te wai.– Kei te whakamahi nga umanga whakangao paura me te kumete i tenei tikanga.Ko te Hydroxypropyl methyl cellulose (HPMC) e whakamahia ana hei maatete whakakaha me te wai pupuri wai i roto i te kumete paura putty.

4, he pehea te ngawari me te mohio ki te whakatau i te kounga o te hydroxypropyl methyl cellulose (HPMC)?

(1) ma: ahakoa e kore e taea e te ma te whakatau mehemea he ngawari te whakamahi a HPMC, a, ki te whakaurua ki roto i te tukanga whakaputa o te kaihoko ma, ka pa ki tona kounga.Engari, ko nga hua pai he ma te nuinga.

(2) pai: HPMC fineness te tikanga 80 mata me te 100 mata, 120 kaupapa iti, Hebei HPMC te nuinga 80 mata, te pai te pai, te tikanga te pai.

(3) whakawhiti: te hydroxypropyl methyl cellulose (HPMC) ki roto i te wai, te hanganga o te colloid marama, kite i tona whakawhitinga, te nui o te whakawhiti, te pai ake, te iti rawa o nga mea korekore i roto.Ko te tikanga pai te uruhanga o te reactor poutū, he kino te reactor whakapae, engari kaore e taea te whakaatu he pai ake te kounga o te reactor poutū i tera o te hanga reactor whakapae, he maha nga mea e whakatauhia ana te kounga o te hua.

(4) te taumahatanga motuhake: te nui ake o te taumahatanga motuhake, te taumaha ka pai ake.I te mea nui, na te mea he nui te ihirangi o te hydroxypropyl, he nui te ihirangi hydroxypropyl, ka pai ake te pupuri wai.

5, hydroxypropyl methyl cellulose (HPMC) i te nui o te paura putty?

HPMC i roto i te tono tūturu o te inenga, e te taiao āhuarangi, pāmahana, te kounga konupūmā konupūmā pungarehu, tātai paura putty me "nga whakaritenga kiritaki o te kounga", a he rerekē.Ko te tikanga, kei waenganui i te wha ki te rima kirokaramu.Hei tauira: Peking putty paura, te nuinga hoatu 5 kg;I Guizhou, ko te nuinga o ratou he 5 kg i te raumati me te 4.5 kg i te takurua.He iti te rahinga o Yunnan, ko te tikanga 3 kg -4 kg me etahi atu.

6, hydroxypropyl methyl cellulose (HPMC) e hia te pokey e tika ana?

Kia hoha ki te paura tamaiti he 100 mano ka pai, ko te hiahia i roto i te moata he teitei ake, kei te hiahia kia 150 mano te kaha ki te whakamahi.I tua atu, ko te mahi tino nui a HPMC ko te pupuri wai, ka whai i te matotoru.I roto i te paura putty, i te mea he pai te pupuri i te wai, he iti te pokey (7-80 mano), ka taea ano hoki, ko te tikanga, he nui ake te paheketanga, he pai ake te pupuri i te wai, i te wa e nui atu ai te paheketanga. 100 mano, he iti te paanga o te pokey ki te pupuri wai.

7, hydroxypropyl methyl cellulose (HPMC) he aha nga tohu hangarau matua?

Ko te ihirangi Hydroxypropyl me te viscosity, ko te nuinga o nga kaiwhakamahi kei te awangawanga ki enei tohu e rua.He nui te ihirangi Hydroxypropyl, he pai ake te pupuri wai.Ko te pokey, te pupuri wai, te whanaunga (engari ehara i te mea tino) he pai ake, me te pokey, i roto i te kumete ciment pai ake te whakamahi i etahi.

8, hydroxypropyl methyl cellulose (HPMC) nga rauemi mata matua he aha?

Hydroxypropyl methyl cellulose (HPMC) nga rauemi mata matua: miro para, chloromethane, propylene oxide, etahi atu rauemi mata, papa alkali, waikawa, toluene, waipiro isopropyl me etahi atu.

9, HPMC i roto i te tono o te putty paura, he aha te mahi matua, ahakoa matū?

Ko te HPMC i roto i te paura putty, te matotoru, te pupuri wai me te hanga e toru nga mahi.Matotoru: Ka taea e te Cellulose te whakakaha ki te takaro i te whakatārewatanga, na te otinga ki te pupuri i nga kakahu o runga me te heke i te mahi ano, ka iri te rere anti.Te pupuri i te wai: kia whakamaroke te paura putty, he tauhohenga konupūmā pungarehu i raro i te mahi a te wai.Hanganga: He whakahinuhinu te whakahinuhinu o te Cellulose, ka taea te hanga i te paura putty he pai te hanga.Karekau a HPMC e uru ki nga tauhohenga matū, he mahi awhina anake.Ko te paura putty he wai taapiri, ki runga i te pakitara, he tauhohenga matū, no te mea kei reira te whakatipuranga o nga mea hou, te paura putty ki runga i te pakitara mai i te pakitara, ka kuia ki te paura, katahi ka whakamahia, kua kore, na te mea kua hanga he he mea hou (konupora warowaiha).Ko nga waahanga matua o te paura konupūmā hina ko: Ca(OH)2, CaO me te iti o te ranunga CaCO3, CaO+H2O=Ca(OH)2 – Ca(OH)2+CO2=CaCO3↓+H2O pungarehu konupūmā i roto i te wai. me te rangi i raro i te mahi o CO2, te hanganga o te konupūmā pākawa waro, me te HPMC anake te pupuri wai, konupūmā awhina pungarehu pai ake tauhohenga, ona ake kihai i whai wāhi i roto i tetahi tauhohenga.

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

I roto i nga tikanga whanui, ko te nonionic tetahi mea kaore e katote i roto i te wai.Ko te Ionization te tukanga e wehea ai te electrolyte ki roto i nga katote e nuku noa ana i roto i tetahi whakarewa motuhake, penei i te wai, i te waipiro ranei.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 neke-kore (Na+) he pai te utu me nga katote chloride (Cl) he toraro.Arā, karekau te HPMC i roto i te wai e wehe ki roto i nga katote katoo, engari ka noho hei ngota ngota.

11, hydroxypropyl methylcellulose gel temperature and what is related to?

Ko te mahana o te kiri HPMC e pa ana ki tana ihirangi methoxy, ko te iti iho o te ihirangi methoxy ↓, ko te teitei ake o te mahana ↑.

12. He hononga kei waenganui i te paura putty me te HPMC?

Ko te paura paura Putty me te kounga o te konupūmā he hononga nui, a, kaore he hononga nui o te HPMC.Ko te iti o te konupūmā o te konupūmā me te ōwehenga o CaO, Ca(OH)2 i roto i te pungarehu konupūmā e kore e tika, ka heke te paura.Mēnā he pā ki te HPMC, kātahi ka hē te pupuri wai o te HPMC, ka heke te paura.Mo etahi take, tirohia te patai 9.

13, hydroxypropyl methylcellulose momo wairewa wai matao me te momo wairewa wera i roto i te tukanga whakaputa, he aha te rereketanga?

HPMC momo wai matao wairewa i muri i te maimoatanga mata glyoxal, i roto i te wai matao hohoro marara, engari e kore e tino rewa, pokey ake, kua rewa.Ko te momo wera-wairewa kaore i tukuna ki te mata ki te glyoxal.He nui te rōrahi o te glyoxal, he tere te marara, engari he puhoi te pokey, he iti te rōrahi, he rereke.

14, hydroxypropyl methyl cellulose (HPMC) he haunga o te aha kei te haere?

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

15, nga whakamahinga rereke, me pehea te whiriwhiri i te hydroxypropyl methyl cellulose (HPMC) tika?

Ko te WHAKATOKANGA O te paura putty: he iti ake te whakaritenga, he 100 mano te viscosity, he pai, ko te mea nui kia pai ake te pupuri i te wai.Te tono mo te moata: he teitei ake te whakaritenga, he nui te viscosity te whakaritenga, kia pai ake te 150 mano.Te tono o te kapia: me hua inamata, te pokey teitei.

16, hydroxypropyl methylcellulose he aha te ingoa ingoa?

Hydroxypropyl Methyl Cellulose, Ingarihi: Hydroxypropyl Methyl Cellulose whakapoto: HPMC or MHPC ingoa ingoa: Hydroxypropyl Methyl Cellulose;Cellulose hydroxypropyl methyl ether;Cellulose hydroxypropyl Methyl ether Hypromellose, 2-hydroxypropylmethyl Cellulose ether.Cellulose hydroxypropyl Methyl ether Hyprolose.

17, HPMC i roto i te tono o te putty paura, putty paura mirumiru he aha te take?

Ko te HPMC i roto i te paura putty, te matotoru, te pupuri wai me te hanga e toru nga mahi.Te kore e uru ki tetahi tauhohenga.Ko te take o nga mirumiru: 1, he nui rawa te wai.2, e kore e maroke te raro, ki runga, ka waruhia he paparanga, he ngawari hoki ki te mirumiru.

18. Te tauira paura Putty mo nga pakitara o roto me waho?

Putty paura mo te pakitara o roto: 800KG o te konupūmā taumaha me te 150KG o te konupūmā hina (starch ether, pure green, peng soil, citric acid and polyacrylamide ka taea te taapiri tika)

Te paura putty pakitara o waho: sima 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?

Ko te MC he methyl cellulose, he miro parakore i muri i te maimoatanga kawakore, me te methane chloride hei kaihoko whakaetere, na roto i te raupapa tauhohenga ki te hanga cellulose ether.Ko te tikanga, ko te tohu whakakapinga ko te 1.6~2.0, ka rereke te whakarewatanga ki te tohu whakakapinga.He ether cellulose kore-katote.

(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 ka taapirihia he nui, he iti te iti, he pokey, he reeti pupuri wai teitei.I roto i a raatau, ko te nui o te taapiri ki te reeti pupuri wai he tino paanga, ko te pokey me te taumata o te reeti pupuri wai kaore i te rite ki te hononga.Ko te tere o te whakakore i te nuinga ka whakawhirinaki ki te tohu whakarereke o te mata me te pai o te matūriki o te matūriki cellulose.I roto i te etera cellulose i runga ake nei, he teitei ake te reeti pupuri wai methyl cellulose me te hydroxypropyl methyl cellulose.

(2) Methyl cellulose e taea te rewa i roto i te wai matao, te wai wera rewa ka tutaki uaua, tona otinga wai i roto i te pH=3~12 awhe he tino pūmau.He pai te hototahitanga ki te māngaro, te kapia guanidine me te maha o nga surfactants.Ka puta te wetewete ina tae te pamahana ki te pāmahana wetewete.

(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 pāmahana moata ki te 40 ℃, ka tino kino te pupuri wai o te methyl cellulose, ka tino pa ki te hanga moata.

(4) Ko te Methyl cellulose he tino awe ki te hanga me te piri o te kumete.I konei, ko te "adhesion" e pa ana ki te kaha whakapiri i waenga i te taputapu tono a te kaimahi me te taputapu pakitara, ara, te parenga kutikuti o te moata.He nui te taonga whakapiri, he nui te parenga kutikuti o te kumete, he nui hoki te kaha e hiahiatia ana e nga kaimahi i roto i te mahi whakamahi, na reira he rawakore te hanga o te moata.I roto i nga hua cellulose ether, ko te methyl cellulose adhesion kei te taumata waenga.

Ko te HPMC mo te hydroxypropyl methyl cellulose, he mea hanga ki te miro parakore i muri i te maimoatanga o te waikura, me te propylene oxide me te chloromethane hei kaihoko whakakaha, na roto i te raupapa o nga tauhohenga me te hanga mai i te cellulose kore-ionic i konatunatua ether.Ko te tohu whakakapinga ko te tikanga 1.2~2.0.Ko ona ahuatanga ka pa ki te waahanga o te ihirangi methoxy me te ihirangi hydroxypropyl.

(1) hydroxypropyl methyl cellulose wairewa i roto i te wai matao, wai wera rewa ka tutaki uaua.Engari he tino teitei ake te pāmahana o te wai wera i tera o te methyl cellulose.Ko te whakarewatanga o te methyl cellulose i roto i te wai matao ka tino pai ake.

(2) ko te viscosity o te hydroxypropyl methyl cellulose e pa ana ki tona taumaha ngota, a ko te taumaha ngota nui ko te viscosity teitei.Ka pa ano te pawera ki tona pokey, ka piki ake te pāmahana, ka heke te pokey.Heoi, he iti ake te pokey o te pāmahana teitei i to te methyl cellulose.Ka noho pumau te otinga ina rongoa ki te pāmahana rūma.

(3) Ko te hydroxypropyl methyl cellulose he pumau ki te waikawa me te kawakore, a he tino pumau tona otinga wai i roto i te awhe o te pH = 2 ~ 12.Karekau he painga nui o te houra me te wai kotakota ki ona taonga, engari ka taea e te alkali te whakatere i tona reiti memeha me te whakapai ake i te poiketa o te titi.Hydroxypropyl methyl cellulose he pumau ki nga tote whanui, engari ka nui te kukū o te wairewa tote, ka piki ake te pokey o te wairewa hydroxypropyl methyl cellulose.

(4) Ko te pupuri wai o te hydroxypropyl methyl cellulose e whakawhirinaki ana ki te nui o tana taapiri, te pokey, me etahi atu, he nui ake te nui o te reeti pupuri wai i te methyl cellulose.

(5) hydroxypropyl methyl cellulose ka taea te konatunatua ki te wai-wairewa polymer pūhui kia noho rite, otinga pokey teitei.Pērā i te waipiro polyvinyl, te māngaro ether, te kāpia tipu me ētahi atu.

(6) Ko te piri o te hydroxypropyl methyl cellulose ki te hanga kumete he teitei ake i tera o te methyl cellulose.

(7) Ko te hydroxypropyl methyl cellulose he pai ake te parenga enzymatic i te methyl cellulose, a he iti ake te kaha o te whakahekenga enzymatic o tona otinga i tera o te methyl cellulose.

He aha te mea e tika ana kia aro atu ki te whakamahinga mahi o te hononga i waenga i te pokey me te pāmahana o te HPMC?

Ko te pokey o te HPMC he rerekee ki te pāmahana, ara, ka piki te pokey ki te heke o te pāmahana.Ina korero tatou mo te pokey o tetahi hua, ko te hua o te ine i tana wairewa wai 2% i te mahana o te 20 nga nekehanga Celsius.

I roto i te whakamahinga mahi, i nga waahi he nui te rereketanga o te pāmahana i waenga i te raumati me te takurua, me aro ki te kupu tohutohu ki te whakamahi i te pokey iti i te takurua, he pai ake te hanga.Ki te kore, ka iti te pāmahana, ka piki ake te pokey o te cellulose, ka wiriwiri, ka taumaha te whakaaro.

Pokey Waenga: 75000-100000 te nuinga whakamahia mo putty

Take: pai te pupuri wai

Te pokey teitei:150000-200000 te nuinga whakamahia mo te matūriki polystyrene waiariki waiariki moata moata me nga pirepire karaihe moata waiariki.

Te take: te pokey teitei, kaore i te ngawari ki te taka te kumete, te rere iri, te whakapai ake i te hanga.

Engari i te nuinga o te korero, ko te teitei ake o te pokey, ka pai ake te pupuri i te wai, na te maha o nga wheketere kumete maroke e whakaaro ana ki te utu, me te cellulose viscosity medium (75,000-100000) hei whakakapi i te cellulose viscosity iti (20,000-40000) hei whakaiti i te nui o tāpiritanga.