1. He aha te kaupapa matua o te hydroxypropyl methyl cellulose (HPMC)?
Kei te whakamahia nuitia te HPMC ki nga taonga hanga, paninga, kapia waihanga, karamu, rongoa, kai, kakano, ahuwhenua, whakapaipai, tupeka me etahi atu ahumahi.
Ka taea te wehewehea te HPMC ki nga waahanga hangahanga, te karaehe kai me te tohu hauora e ai ki tana kaupapa.
I tenei wa, ko te nuinga o nga hua o te kaainga he reanga 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 methyl cellulose (HPMC). He aha te rereketanga o o raatau whakamahinga?
Ka taea te wehewehea te HPMC ki te momo tere me te momo whakarewa wera.
Ka marara te 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 e tino memeha. Tata ki te 2 meneti, ka piki haere te pokey o te wē, ka puta he colloid karekau marama.
Momo inamata, he whanui ake nga tono, ka taea te whakamahi ki te paura putty me te kumete, tae atu ki te kapia wai me te peita.
Ko te hua wera-rewa, ka tutaki ki te wai matao, ka tere te marara i roto i te wai wera ka ngaro i roto i te wai wera. Ka heke te pāmahana ki tetahi pāmahana, ka ata puta te pokey tae noa ki te hanga i tetahi colloid puataata.
Ko te momo whakarewa wera ka taea anake te whakamahi ki te paura putty me te moata.
3. He aha nga tikanga whakakore o te hydroxypropyl methyl cellulose (HPMC)?
Tikanga wetewete wai wera: I te mea karekau te HPMC e memeha ki te wai wera, ka taea te whakamararatia te HPMC ki te wai wera i te timatanga, ka tere te memeha 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. Taapirihia te hydroxypropyl methylcellulose me te whakaoho puhoi, timata te HPMC ki runga i te mata o te wai, katahi ka hanga he slurry, ka whakamatao i te slurry me te whakaoho.
(2). Tuhia he 1/3, 2/3 ranei o te nui o te wai e hiahiatia ana ki roto i te ipu ka whakamahana ki te 70°C. E ai ki te tikanga i runga ake, marara HPMC ki te whakarite i te slurry wai wera; kātahi ka tāpirihia te toenga o te wai matao ki te slurry wai wera. I roto i te slurry, whakamataohia te ranunga i muri i te whakaoho.
Te tikanga whakaranu i te paura: Whakaranuhia te paura HPMC me te nui o etahi atu kai paura me 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 ko ia kokonga iti, he iti noa iho te HPMC. Ka rewa tonu te paura ina tutaki ki te wai.
4. Me pehea te whakatau i te kounga o te hydroxypropyl methylcellulose (HPMC) ngawari me te mohio?
(1) Maama: Ahakoa kaore e taea e te maama te whakatau mena he ngawari te whakamahi a HPMC, a mena ka whakauruhia he kanapa ki roto i 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 ko te 80 mesh me te 100 mesh, he iti ake te 120 mesh, he pai ake te pai, he pai ake.
(3) Whakawhitinga: I muri i te maka o te HPMC ki roto i te wai hei hanga i tetahi colloid maramara, tirohia tona tukunga. Ko te nui ake o te whakawhiti, ko te pai ake, e tohu ana he iti ake nga insolubles o roto.
(4) Tauwehenga: ko te nui o te wahanga, ko te taumaha ka pai ake. Ko te tino motuhake ko te tikanga na te nui o te ihirangi hydroxypropyl kei roto, me te teitei ake o te ihirangi hydroxypropyl, ka pai ake te pupuri i te wai.
5. He aha nga tohu hangarau matua o te hydroxypropyl methyl cellulose (HPMC)?
Ko te ihirangi Hydroxypropyl me te viscosity, ko te nuinga kei te awangawanga mo enei tohu e rua. He pai ake te pupuri wai mo te hunga he nui te ihirangi hydroxypropyl. He pai ake te viscosity teitei, te pupuri wai, te whanaunga (kaore i te tino tino), me te viscosity teitei, he pai ake te whakamahi i roto i te kumete ciment.
6. He aha nga mea matua o te hydroxypropyl methyl cellulose (HPMC)?
Ko nga rauemi mata matua o te HPMC: miro parakore, methyl chloride, propylene oxide, etc.
7. He aha te mahi matua o te whakamahinga o te hydroxypropyl methyl cellulose (HPMC) ki te paura putty? He tauhohenga matū?
I roto i te paura putty, e toru nga mahi a te HPMC mo te whakapakeke, te pupuri wai me te hanga.
Te Matotoru: Ka taea te whakamaroke i te Cellulose ki te whakatarewa me te pupuri i te ahua o te otinga me te piki me te heke, me te anti-sagging.
Te pupuri wai: kia ata whakamaroke te paura putty, me te awhina i te konupūmā hina ki te tauhohe i raro i te mahi a te wai.
Hanganga: He whakahinuhinu te whakahinuhinu o te Cellulose, ka pai te mahi o te paura putty.
Karekau a HPMC e uru ki tetahi tauhohenga matū, he mahi tautoko anake.
8. He aha te kakara o te hydroxypropyl methyl cellulose (HPMC)?
Ko te HPMC i hangaia e te tikanga whakarewa e whakamahi ana i te toluene me te isopropanol hei whakarewa. Ki te kore e pai te horoi, ka toe he haunga.
9. Me pehea te whiriwhiri i te hydroxypropyl methylcellulose (HPMC) tika mo nga kaupapa rereke?
Te tono o te paura putty: he iti ake te whakaritenga, he 100,000 te viscosity, he nui, ko te mea nui kia pai ake te wai.
Te tono mo te moata: nga whakaritenga teitei, te pokey teitei, te 150,000 he pai ake.
Te tono kapia: e hiahiatia ana nga hua inamata, me te pokey teitei.
10. Ko te whakauru o te hydroxypropyl methyl cellulose (HPMC) ki te paura putty, he aha te take i puta ai te mirumiru o te paura putty?
I roto i te paura putty, e toru nga mahi a te HPMC mo te whakapakeke, te pupuri wai me te hanga. Kaua e uru ki tetahi tauhohenga.
Nga take o nga mirumiru:
1）. Hoatu rawa te wai.
2）. Ki te kore e maroke te paparanga o raro, waruhia noa tetahi paparanga o runga, ka ngawari hoki te pahuka.
Ko a maatau hua e tino kitea ana, e pono ana e nga kaihoko, ka makona tonu i nga hiahia ohaoha me te hapori mo te 8 Tau Kaihoko Haina Hanga Tiaki Cellulose HPMC Ka whakamahia mo te Drymix Mortar HPMC, Ka tukuna a maatau taonga ki te maha o nga Rōpū me te maha o nga wheketere. I tenei wa, ka hokona a maatau hua ki nga USA, Itari, Singapore, Malaysia, Russia, Poland, me te Middle East.
8 Tau Kaihoko Haina HPMC, Rauemi Hangahanga, Ka whakauruhia e matou te hoahoa, te hanga me te kaweake me te neke atu i te 100 nga kaimahi mohio, te punaha whakahaere kounga me te hangarau mohio.Ka mau tonu matou i nga hononga pakihi mo te wa roa me te kaihokohoko me nga kaihokohoko neke atu i te 50 whenua, penei i te USA, UK, Canada, Europe me Africa etc.
Wā tuku: Oketopa-22-2021