Hydroxypropyl methylcellulose (HPMC) chiwedzere chakasiyana-siyana chinoshandiswa zvakanyanya muindasitiri yekuvaka, kunyanya mukugadzira plaster.Gypsum plaster, inozivikanwawo sepurasita yeParis, chivakwa chakakurumbira chinoshandiswa kupfekedza madziro uye sirin'i.HPMC inoita basa rakakosha mukuvandudza mashandiro uye kuita kwegypsum plaster.
HPMC isiri-ionic cellulose ether inowanikwa kubva kune zvakasikwa polymer cellulose kuburikidza neakatevedzana emakemikari ekugadzirisa.Inogadzirwa nekurapa cellulose nepropylene oxide uye methyl chloride.Chigadzirwa chinokonzerwa nehupfu chena inonyungudika mumvura uye inoumba yakajeka viscous solution.
Heano zvimwe zvezvakakosha zveHPMC zvepurasita:
1. Kuchengeta mvura:
Rimwe remabasa ekutanga eHPMC mugypsum kugona kwayo kubata mvura.Inobatsira kudzivirira kurasikirwa nekukurumidza kwehunyoro panguva yekuomeswa, zvichibvumira kudzora uye kunyange kugadzika kwepurasita.Izvi zvakakosha kuti uwane simba rinodiwa uye kuwirirana kwepurasita.
2. Kuvandudza processability:
HPMC inokwidziridza kushanda kwegypsum plaster nekupa zvirinani kuvhura nguva uye kuwedzera kutsvedza kuramba.Izvi zvinoita kuti zvive nyore kuisa uye kuparadzira stucco pamusoro pepamusoro, zvichiita kuti zvive nyore, zvakanyanya kupedzisa.
3. Kunamatira uye kubatana:
HPMC inobatsira mukunamira kwegypsum plaster kune akasiyana substrates.Inovandudza kunamatira pakati pestucco uye pasi pepamusoro, kuve nechokwadi chekugara kwenguva refu uye kusingagumi kupera.Mukuwedzera, HPMC inosimudzira kubatanidzwa kwepurasita pachayo, nokudaro kuwedzera simba uye kuderedza kuputika.
4. Kukora mhedzisiro:
Mukugadzira gypsum, HPMC inoita seyakakora, inokanganisa viscosity yemusanganiswa wegypsum.Uku kukora mhedzisiro kwakakosha kuti uwane iyo inodiwa kuenderana uye kuumbwa panguva yekushandisa.Inobatsirawo kudzivirira stucco kubva pakudonha kana kudonha panzvimbo yakatwasuka.
5. Seta nguva yekudzora:
Kudzora nguva yekumisikidza yegypsum plaster kwakakosha mumashandisirwo ekuvaka.HPMC inogona kugadzirisa nguva yekumisikidza kuti ipe shanduko yekusangana nezvinodiwa zveprojekiti.Izvi zvinonyanya kukosha kumapurojekiti makuru angangoda nguva dzekuseta dzakasiyana.
6. Mhedzisiro pane porosity:
Kuvapo kweHPMC kunokanganisa porosity yegypsum.Yakanyatsogadzirwa plaster neHPMC inogona kuwedzera kuramba kupinda kwemvura uye kuderedza porosity, nekudaro ichiwedzera kusimba uye kuramba kune zvakatipoteredza zvinhu.
7. Kuenderana nezvimwe zvinowedzera:
HPMC inowirirana nezvimwe zvakasiyana-siyana zvekuwedzera zvinowanzoshandiswa mukugadzirwa kwegypsum.Izvi zvakasiyana-siyana zvinobvumira plaster musanganiswa kuti ugadziriswe kuti usangane nemaitiro chaiwo ekuita uye zvinodiwa zvekushandisa.
8. Mafungiro ezvakatipoteredza:
HPMC inowanzoonekwa yakachengeteka uye ine hushamwari.Haina chepfu uye haibudisi zvinhu zvinokuvadza panguva kana mushure mekupurasita.Izvi zvinoenderana nekukura kwekusimbisa kune inoenderera uye eco-inoshamwaridzika maitiro ekuvaka.
Hydroxypropyl methylcellulose (HPMC) inoita basa rakakosha mukuvandudza mashandiro egypsum mumashandisirwo ekuvaka.Kuchengetedzwa kwayo kwemvura, kuvandudzwa kwekushanda, kunamatira, kukora mhedzisiro, kuseta nguva kutonga, mhedzisiro pane porosity, kuenderana nezvimwe zvinowedzera uye nekufunga kwezvakatipoteredza kunoita kuti ive yekuwedzera yakakosha mumhando yepamusoro yegypsum formulations.Sezvo maitiro ekuvaka ari kuramba achishanduka, HPMC inoramba iri chinhu chakakosha mukuvandudza kushanda uye kusimba kwegypsum plaster mumapurojekiti akasiyana ekuvaka nekuvaka.
Nguva yekutumira: Jan-22-2024