Pane zvinhu zvakawanda zvinokanganisa kushandiswa kwehydroxypropyl methylcellulose HPMC muzvinhu zvekuvaka, kunyanya gypsum-based plaster, seizvi:
1 kuchengetwa kwemvura
Hydroxypropyl methylcellulose yekuvaka inodzivirira kunyudzwa kwemvura zvakanyanya ne substrate, uye kana gypsum yanyatsoiswa, mvura inofanira kuchengetwa mu plaster zvakanyanya sezvinobvira. Hunhu uhwu hunonzi kuchengetedza mvura uye hunoenderana zvakananga nekusimba kwe hydroxypropyl methylcellulose solution yakagadzirwa mu stucco. Kusimba kwe solution kwakakwira, kugona kwayo kuchengetedza mvura kwakakwira. Kana huwandu hwemvura hwawedzera, kugona kwayo kuchengetedza mvura kunoderera. Izvi zvinodaro nekuti kuwedzera kwemvura kunodzikisa hydroxypropyl methylcellulose yekuvaka, zvichikonzera kudzikira kwekusimba.
2 kudzivirira kudonha
Plasta ine hunhu hunodzivirira kudonha kwebvudzi inobvumira maapplicator kuisa machira akakora asingatsvedzerere, uye zvinorevawo kuti plasta pachayo haisi thixotropic, iyo yaizotsvedza pasi panguva yekuisa.
3 Deredza kusviba, zviri nyore kuvaka
Gypsum plaster ine viscosity yakaderera uye iri nyore kugadzira inogona kuwanikwa nekuwedzera zvigadzirwa zvakasiyana-siyana zve hydroxypropyl methylcellulose. Kana uchishandisa hydroxypropyl methylcellulose ine viscosity yakaderera, mwero we viscosity unodzikira. Kuvaka kunova nyore, asi kugona kwekuchengetedza mvura kwe hydroxypropyl methylcellulose ine viscosity shoma pakuvaka kwakaderera, uye huwandu hwekuwedzera hunofanira kuwedzerwa.
4 Kuenderana kwe stucco
Kana paine huwandu hwakatarwa hwedhaka rakaoma, zvinodhura kugadzira dhaka rakanyorova rakawanda, izvo zvinogona kuwanikwa nekuwedzera mamwe mabubble emvura nemhepo. Asi huwandu hwemabubble emvura nemhepo hwakawandisa.
Nguva yekutumira: Kubvumbi-20-2023