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 whakapae.
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 wera ki te 70 ° C, kia rite ki te tikanga o te 1), whakamararatia te HPMC, 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: 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 tino nui a HPMC ko te pupuri wai, ka whai i te whakamarumaru.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 whakairinga: Sep-21-2022