Hydroxypropyl methylcellulose, yemwenso amadziwika kuti HPMC, ndi nonionic cellulose ether yomwe imapezeka kuchokera ku thonje loyengedwa, zinthu zachilengedwe za polima, kudzera munjira zingapo zama mankhwala. Ndi ufa woyera kapena wachikasu pang'ono womwe umasungunuka mosavuta m'madzi. Tiyeni tikambirane njira yothetsera hydroxypropyl methylcellulose.
1. Hydroxypropyl methylcellulose amagwiritsidwa ntchito makamaka ngati chowonjezera cha putty powder, matope ndi guluu. Kuwonjezedwa ku matope a simenti, angagwiritsidwe ntchito ngati chosungira madzi ndikubwezeretsanso kuti awonjezere kupopera; kuwonjezeredwa ku putty ufa ndi guluu, itha kugwiritsidwa ntchito ngati chomangira. Pofuna kupititsa patsogolo kufalikira ndikuwonjezera nthawi yogwiritsira ntchito, timatenga Qingquan Cellulose monga chitsanzo chofotokozera njira yowonongeka ya hydroxypropyl methylcellulose.
2. Wamba hydroxypropyl methylcellulose amayamba kusonkhezeredwa ndi kumwazikana ndi madzi otentha, kenaka amawonjezeredwa ndi madzi ozizira, osonkhezera ndi kuziziritsidwa kuti asungunuke;
Mwachindunji: tengani 1/5-1/3 ya madzi otentha ofunikira, gwedezani mpaka mankhwala owonjezera atupa, kenaka yikani mbali yotsala ya madzi otentha, omwe angakhale madzi ozizira kapena madzi oundana, ndikugwedeza kuti kutentha koyenera (10°C) mpaka kusungunuka kwathunthu.
3. Njira yonyowetsa zosungunulira za organic:
Mumwaza hydroxypropyl methylcellulose mu zosungunulira organic kapena monyowetsa ndi zosungunulira organic, ndiyeno kuwonjezera kapena kuwonjezera madzi ozizira kupasuka bwino. Zosungunulira organic zitha kukhala ethanol, ethylene glycol, etc.
4. Ngati agglomeration kapena kukulunga kumachitika panthawi ya kusungunuka, ndichifukwa chakuti kugwedeza sikukwanira kapena chitsanzo wamba chimawonjezedwa mwachindunji kumadzi ozizira. Panthawiyi, gwedezani mwamsanga.
5. Ngati ma thovu amapangidwa panthawi ya kusungunuka, akhoza kusiyidwa kwa maola 2-12 (nthawi yeniyeni imadalira kugwirizana kwa yankho) kapena kuchotsedwa ndi vacuuming, pressurizing, etc., kapena kuwonjezera kuchuluka koyenera kwa defoaming wothandizira.
Kusamalitsa
Hydroxypropyl methylcellulose imagawidwa m'magulu osungunuka pang'onopang'ono komanso osungunuka nthawi yomweyo. Instant hydroxypropyl methylcellulose imatha kusungunuka mwachindunji m'madzi ozizira.
Nthawi yotumiza: Feb-06-2024