Kodi hydroxypropyl methyl cellulose HPMC ndi chiyani?

HPMC hydroxypropyl methyl cellulosewopanga wopanga fakitale wogulitsa kunja
Kodi ntchito yaikulu ya HPMC ndi yotani?
HPMC ingagawidwe m'magulu awa: kapangidwe kake, chakudya ndi mankhwala pogwiritsa ntchito.
HPMC imagwiritsidwa ntchito kwambiri pa zipangizo zomangira, zokutira, utomoni wopangidwa, zoumbaumba, mankhwala, chakudya, nsalu, ulimi, zodzoladzola, fodya ndi mafakitale ena.
Pakadali pano, gawo lalikulu la kapangidwe ka nyumba, mu gawo la kapangidwe kake, mlingo wa ufa wa putty ndi waukulu, pafupifupi 90% imagwiritsidwa ntchito popanga ufa wa putty, yotsalayo imagwiritsidwa ntchito popanga matope a simenti ndi guluu.

Kodi zinthu zazikulu zopangira HPMC ndi ziti?
Zipangizo zazikulu za HPMC: thonje loyengedwa, chloromethane, propylene oxide. Zipangizo zina ndi monga mapiritsi a alkali, asidi, toluene, isopropanol ndi zina zotero.

- HPMC yagawidwa m'mitundu ingapo, kodi kusiyana kwa kagwiritsidwe ntchito ndi kotani?
HPMC ingagawidwe m'magulu awiri: nthawi yomweyo ndi kutentha.

Zinthu zomwe zimagulitsidwa nthawi yomweyo, m'madzi ozizira zimafalikira mwachangu, zimasowa m'madzi, panthawiyi madziwo alibe kukhuthala, chifukwa HPMC imangofalikira m'madzi, palibe kusungunuka kwenikweni. Pafupifupi mphindi ziwiri, kukhuthala kwa madziwo kumawonjezeka pang'onopang'ono, ndikupanga colloid yowoneka bwino yokhuthala. Kugwiritsa ntchito mosiyanasiyana, mu ufa wa putty ndi matope, ndi guluu wamadzimadzi ndi utoto, kungagwiritsidwe ntchito, palibe choletsa.

Zinthu zosungunuka zotentha, m'madzi ozizira, zimatha kufalikira mwachangu m'madzi otentha, kuzimiririka m'madzi otentha, kutentha kukatsika kufika kutentha kwina, kukhuthala kumawonekera pang'onopang'ono, mpaka kupanga colloid yowonekera bwino. Ingagwiritsidwe ntchito mu ufa wa putty ndi matope, mu guluu wamadzimadzi ndi utoto, padzakhala chochitika chamagulu, sichingagwiritsidwe ntchito.

Kodi zizindikiro zazikulu zaukadaulo ndi ziti?HPMC?
Kuchuluka kwa hydroxypropyl ndi kukhuthala, ogwiritsa ntchito ambiri amakhudzidwa ndi zizindikiro ziwirizi.

Kuchuluka kwa hydroxypropyl kuli kochuluka, ndipo kusunga madzi nthawi zambiri kumakhala bwino.

Kukhuthala, kusunga madzi, ubale (koma osati wokwanira) ndikwabwino, ndipo kukhuthala, mu matope a simenti ndi bwino kugwiritsa ntchito zina.

Kodi kukhuthala kotani komwe kumayenera kugwiritsidwa ntchito pa HPMC?
Ntchito yofunika kwambiri ya HPMC ndi kusunga madzi, kenako kukhuthala.
Ufa wa putty nthawi zambiri umakhala ndi ma cps 100000. Malinga ngati madzi akusungidwa bwino, kukhuthala kwake kuli kochepa (70,000-80000), n'zothekanso, ndithudi, kukhuthala kwake kumakhala kwakukulu, kukhuthala kwake kumakhala bwino, pamene kukhuthala kwake kuli koposa 100,000, kukhuthalako sikukhudza kwambiri kusungunuka kwa madzi.
Chofunika mu MORTAR ndi chachitali, nthawi zambiri timafuna 150,000 kuti tigwiritse ntchito bwino.
Kugwiritsa ntchito guluu: kumafuna zinthu zomwe zingagwiritsidwe ntchito nthawi yomweyo, kukhuthala kwakukulu.