Basa rehydroxypropyl methylcellulose (HPMC) mune zvegypsum zvinhu rakakosha zvakanyanya. Gypsum zvinhu zvinoshandiswa zvakanyanya mukuvaka, kushongedza uye mamwe maindasitiri minda. Sekuwedzera kwakawanda, HPMC inoshandiswa zvakanyanya mune gypsum zvinhu. Basa rayo guru rinosanganisira kuvandudza kushanda kwegypsum slurry, kuwedzera simba rekubatanidza, kutonga nguva yekuisa uye kuvandudza kusimba kwezvinhu.
Basa guru reHPMC mugypsum
1. Kuvandudza kushanda kwebasa
HPMC inogona kuvandudza zvakanyanya kushanda kwegypsum slurry, zvichiita kuti ive nani fluidity uye kushanda. Izvi zvinonyanya nekuti HPMC ine yakanaka thickening mhedzisiro uye inogona kuwedzera viscosity ye slurry, nekudaro ichidzivirira slurry kubva pakudonha, kunyura uye zvimwe zviitiko panguva yekuvaka. Mukuwedzera, HPMC inogonawo kuvandudza kushandiswa kwemvura yegypsum slurry, kuitira kuti irege kuoma nekuda kwekukurumidza kubuda kwemvura panguva yekuvaka.
2. Wedzera simba rekubatana
HPMC inogona kuwedzera simba rekubatanidza pakati pegypsum uye substrate. Izvi zvinodaro nekuti HPMC inogona kuumba yakanaka network chimiro mu gypsum slurry, iyo inowedzera kubatanidzwa kwegypsum slurry, nekudaro ichivandudza kugona kwayo kwekubatanidza ne substrate. Mukuwedzera, HPMC inewo imwe dhigirii yekunyorova, iyo inogona kuwedzera nzvimbo yekubatana pakati pe gypsum slurry uye pamusoro peiyo substrate, ichiwedzera kuwedzera hukama hwekubatana.
3. Dzora nguva ye coagulation
HPMC inogona kunyatso kudzora nguva yekuseta yegypsum slurry. Kuwedzerwa kweHPMC kunogona kudzikamisa kuseta kumhanya kwegypsum slurry, kupa vashandi vekuvaka nguva yakakwana yekushanda nekugadzirisa, uye kudzivirira kukanganisa kwekuvaka kunokonzerwa nekukasira kuseta. Izvi zvinonyanya kukosha kune yakakura-nzvimbo yekuvaka uye yakaoma-yakaumbwa-yakaumbwa plaster zvigadzirwa.
4. Kuvandudza kusimba kwezvinhu
HPMC inogona zvakare kuvandudza kusimba kwezvinhu zvegypsum. Kuwedzerwa kweHPMC kunogona kukwidziridza kuputika kwegypsum zvinhu uye kudzivirira kuomesa uye kuputika kunokonzerwa nekushanduka kwekushisa uye humidity shanduko. Pamusoro pezvo, HPMC inewo zvimwe zvimisikidzo zvemvura, izvo zvinogona kuderedza kukukurwa kwehunyoro pazvinhu zvegypsum uye kuwedzera hupenyu hwavo hwesevhisi.
Maitiro ekushandisa kweHPMC mugypsum
1. Kukora musimboti
Iyo molecular chimiro cheHPMC ine nhamba huru yehydroxyl uye methyl mapoka. Aya mapoka anoshanda anogona kugadzira hydrogen zvisungo nemamorekuru emvura, nekudaro achiwedzera viscosity ye slurry. Iko kukora mhedzisiro yeHPMC haingogone kuvandudza kuyerera uye kushanda kwegypsum slurry, asi zvakare kunatsiridza kugadzikana kwe slurry uye kudzivirira delamination uye kunaya.
2. Mvura yekuchengetedza nheyo
HPMC ine yakanakisa yekuchengetedza mvura zvivakwa uye inogona kugadzira yunifomu yekuchengetedza mvura firimu mune gypsum slurry kuderedza kubuda kwemvura. Iyo yekuchengeta mvura mhedzisiro yeHPMC inogona kudzivirira slurry kubva pakutsemuka uye kuderera panguva yekuomeswa, kuvandudza kunaka uye kushandiswa kwemaitiro egypsum zvinhu.
3. Bonding musimboti
HPMC inogona kuumba yakanaka network chimiro mu gypsum slurry kuti iwedzere kubatana kwe slurry. Panguva imwecheteyo, kunyorova kweHPMC kunogona kuwedzera nzvimbo yekubatana pakati pe gypsum slurry uye pamusoro peiyo substrate, nekudaro ichivandudza simba rekubatanidza.
4. Nheyo yekudzora coagulation nguva
HPMC inogona kunonoka kuseta kumhanya kwegypsum slurry, kunyanya nekugadzirisa iyo hydration reaction yekumhanya mune slurry. Kuwedzerwa kweHPMC kunogona kuderedza hydration reaction ye calcium sulfate mu gypsum slurry, ichipa slurry nguva yakareba yekushanda uye kushanda kuri nani kwekuvaka.
5. Nheyo yekuvandudza kusimba
Iyo yekusimbisa mhedzisiro yeHPMC inogona kuvandudza kutsemuka kwegypsum zvinhu uye kudzivirira yakaoma kuputika uye kuputika kunokonzerwa nekushanduka kwekushisa uye humidity shanduko. Pamusoro pezvo, kuita kweHPMC kusapinda mvura kunogona kuderedza kukukurwa kwezvinhu zvegypsum nemvura uye kuwedzera hupenyu hwavo hwesevhisi.
Iko kushandiswa kweHPMC mune gypsum zvinhu kwakakosha zvikuru. Nekuvandudza kushanda kwegypsum slurry, kusimbisa chisungo chesimba, kudzora nguva yekumisikidza uye nekuvandudza kusimba kwechinhu, HPMC inogona kuvandudza zvakanyanya kunaka uye kushandisa mhedzisiro yezvinhu zvegypsum. Naizvozvo, HPMC yave chinhu chakakosha uye chakakosha chikamu chegypsum zvinhu mumapurojekiti emazuva ano ekuvaka uye ekushongedza.
Nguva yekutumira: Jul-11-2024