1. He maha nga momo o te hydroxypropyl methylcellulose HPMC, a he aha te rereketanga i waenga i a raatau whakamahinga?
Whakautu: Hydroxypropyl methylcellulose HPMC ka taea te wehewehe ki te momo inamata me te momo wera-rewa. 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. I muri tata ki te 2 meneti, ka piki haere te viscosity o te wai, ka hanga he colloid viscous marama. Ko nga hua wetewete wera, ka pa ki te wai makariri, ka tere te marara ki roto i te wai wera ka ngaro ki te wai wera. Ka heke te pāmahana ki tetahi pāmahana, ka ata puta te pokey tae noa ki te hanganga o 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 puta te ahua o te kopiri, kare 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 tohu.
2. He aha te kaupapa matua o te hydroxypropyl methylcellulose (HPMC)?
A: Kei te whakamahia nuitia te HPMC i roto i nga taonga hanga whare, i nga paninga, i nga kapia waihanga, i nga karamu, i te rongoa, i te kai, i te kakano, i te ahuwhenua, i nga mea whakapaipai, i te tupeka me etahi atu ahumahi. Ka taea te wehea te HPMC ki: te tohu hanga, te karaehe kai me te karaehe rongoa e ai ki te kaupapa. I tenei wa, ko te nuinga o nga hua o te kaainga he tohu hanga. I roto i te waahanga hanga, he tino nui te nui o te paura putty, mo te 90% e whakamahia ana mo te paura putty, a ko te toenga ka whakamahia mo te raima ciment me te kopa.
3. He aha nga tikanga whakakore o te hydroxypropyl methylcellulose HPMC?
Whakautu: Tikanga wetewete wai wera: I te mea karekau te HPMC e rewa ki te wai wera, ka taea te whakamarara 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), tāpirihia te 1/3, te 2/3 rānei o te nui o te wai e hiahiatia ana i roto i te ipu, ka whakamahana ki te 70 ° C, kia rite ki te tikanga o te 1), whakamararatia te HPMC, te whakarite 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: Whakaranuhia te paura HPMC me te maha o etahi atu matū paura, uru rawa ki te whakaranu, katahi ka tapirihia he wai kia memeha, katahi ka taea te rewa te HPMC i tenei wa me te kore e piri, na te mea he iti noa te HPMC i ia wa. kokonga iti iti. Ka rewa tonu te paura ki te wai. ——Ko tenei tikanga e whakamahia ana e nga kaihanga putty paura me te moata. [Hydroxypropyl methylcellulose (HPMC) e whakamahia ana hei whakakaha me te pupuri wai i roto i te kumete paura putty.
2), hoatu te nui o te wai wera ki roto i te ipu, ka whakamahana ki te 70 ℃. Ko te hydroxypropyl methylcellulose i āta tāpirihia me te puhoi o te whakaoho, i te tuatahi ka maanu te HPMC ki runga i te mata o te wai, katahi ka hanga he slurry, ka whakamataohia ki te whakakorikori.
4. Me pehea te whakatau i te kounga o te hydroxypropyl methylcellulose (HPMC) ngawari me te mohio?
Whakautu: (1) Te taumahatanga motuhake: ka nui ake te taumahatanga, ka pai ake te taumaha. nui ake, te tikanga na te mea
(2) Maamaa: Ahakoa kaore te maama e whakatau mena he ngawari te whakamahi a HPMC, a, ki te taapirihia he kaihoko ma ki roto i 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 ko te 80 mesh me te 100 mesh, me te 120 mesh he iti ake. 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) Whakawhitinga: Kuhua te hydroxypropyl methylcellulose (HPMC) ki roto i te wai hei hanga i te colloid maramara, ka tirohia tona tukunga. Ko te teitei o te whakawhiti, ko te pai ake, e tohu ana he iti ake nga matū korekore i roto. I te nuinga o te wa he pai te uruhanga o nga reactors poutū, a he kino ake te ahua o nga reactors whakapae, engari kaore e taea te kii he pai ake te kounga o nga reactors poutū i tera o nga reactors whakapae, a he maha nga mea e whakatau ana i te kounga o nga hua. He tiketike te ihirangi hydroxypropyl i roto, he tiketike te ihirangi hydroxypropyl, he pai ake te pupuri i te 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 e whakaaro ana ki enei tohu e rua. Ko te teitei o te ihirangi hydroxypropyl, ko te pai ake o te pupuri wai. Viscous, pupuri wai, āhua (hei utu o
6. He aha te pokey tika o te hydroxypropyl methylcellulose (HPMC)?
Whakautu: Ko te paura Putty te nuinga o te 100,000 yuan, a he nui ake te hiahia o te moata, a he ngawari ki te whakamahi i te 150,000 yuan. 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 wai me te iti o te pokey (70,000-80,000), ka taea hoki. Ko te tikanga, ki te mea he teitei ake te viscosity, he pai ake te pupuri wai whanaunga. Ka nui ake te viscosity ki te 100,000, ko te hua o te pokey ki te pupuri wai ehara i te nui. Tino) he pai ake hoki, a he tiketike te viscosity, a 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): te miro para, te methyl chloride, te propylene oxide, etahi atu rauemi mata ko te alkali, te waikawa, te toluene, te isopropanol, etc.
Wā tuku: Feb-05-2024