Njira yosungunula ya Hydroxypropyl methylcellulose HPMC

Hydroxypropyl methylcellulose, yomwe imadziwikanso kuti HPMC, ndi ether ya cellulose yosakhala ionic yomwe imapezeka kuchokera ku thonje loyengedwa bwino, chinthu chachilengedwe cha polymer, kudzera mu njira zingapo zamankhwala. Ndi ufa woyera kapena wachikasu pang'ono womwe umasungunuka mosavuta m'madzi. Tiyeni tikambirane za njira yosungunula ya hydroxypropyl methylcellulose.

1. Hydroxypropyl methylcellulose imagwiritsidwa ntchito makamaka ngati chowonjezera pa ufa wa putty, matope ndi guluu. Powonjezeredwa ku matope a simenti, ingagwiritsidwe ntchito ngati chosungira madzi komanso choletsa kupopa madzi; powonjezeredwa ku ufa wa putty ndi guluu, ingagwiritsidwe ntchito ngati chomangira. Pofuna kukonza kufalikira ndikuwonjezera nthawi yogwirira ntchito, timatenga Qingquan Cellulose ngati chitsanzo pofotokoza njira yosungunula ya hydroxypropyl methylcellulose.

2. Hydroxypropyl methylcellulose wamba amayamba kusakaniza ndi madzi otentha, kenako amawonjezeredwa ndi madzi ozizira, amasakaniza ndi kuziziritsidwa kuti asungunuke;

Makamaka: tengani 1/5-1/3 ya madzi otentha ofunikira, sakanizani mpaka mankhwala owonjezera atatupa kwathunthu, kenako onjezerani gawo lotsala la madzi otentha, lomwe lingakhale madzi ozizira kapena madzi oundana, ndikusakaniza kutentha koyenera (10°C) mpaka litasungunuka kwathunthu.

3. Njira yonyowetsera zinthu zosungunuka zachilengedwe:

Mwazani hydroxypropyl methylcellulose mu organic solvent kapena muinyowetse ndi organic solvent, kenako onjezerani kapena onjezerani madzi ozizira kuti musungunuke bwino. organic solvent ikhoza kukhala ethanol, ethylene glycol, ndi zina zotero.

4. Ngati kusonkhana kapena kukulunga kumachitika panthawi yosungunuka, ndi chifukwa chakuti kusakaniza sikukwanira kapena chitsanzo chachizolowezi chimawonjezeredwa mwachindunji m'madzi ozizira. Pakadali pano, sakanizani mwachangu.

5. Ngati thovu lipangidwa panthawi yosungunuka, likhoza kusiyidwa kwa maola 2-12 (nthawi yeniyeniyo imadalira kukhazikika kwa yankho) kapena kuchotsedwa pochotsa utsi, kupondereza, ndi zina zotero, kapena kuwonjezera kuchuluka koyenera kwa mankhwala ochotsera poizoni.

Kusamalitsa

Hydroxypropyl methylcellulose imagawidwa m'mitundu yosungunuka pang'onopang'ono ndi yosungunuka nthawi yomweyo. Hydroxypropyl methylcellulose yosungunuka nthawi yomweyo imatha kusungunuka mwachindunji m'madzi ozizira.