Skim coating inzira yakakurumbira yekuwana yakatsetseka, kunyange pamusoro pemadziro uye sirin'i.Nzira iyi inosanganisira kuisa dhaka rakatetepa redhaka kana stucco panzvimbo yakaoma kana isina kuenzana kugadzira chigadziko chependi kana mapepa.HPMC kana hydroxypropyl methylcellulose inowanzoshandiswa thickener kune yakatetepa layer musanganiswa.Ngatitarisei zvakanyanya kune zvakanakira HPMC mumatete akaturikidzana.
Chekutanga, HPMC yakanakisa gobvu ye putty nekuti inonyungudika mumvura uye iri nyore kusanganisa.Kusiyana nemamwe makobvu akadai setapioca starch kana hupfu hwegorosi, HPMC inonyungudika zvachose mumvura, zvichiita kuti zvive nyore kuwana inowirirana mameseji mumasanganiswa ekuputira skim.Uye zvakare, HPMC ine yakanakisa adhesion, iyo inobatsira iyo putty kunamatira kune substrate uye inodzivirira kuputika.
Imwe bhenefiti yakakosha yekushandisa HPMC mune putty coating musanganiswa kugona kwayo kuvandudza processability uye kuyerera.Nekuti HPMC inokora musanganiswa zvishoma nezvishoma, inopa anopura nguva yakawanda yekushanda pazvikamu zveputty isati yagadzika.Nekudaro, izvi zvinobvumira kuita kwakapfava, kwakanyanya kunyange application.Uye zvakare, HPMC inokwidziridza chiyero cheiyo putty, ichiibvumira kuti iite-yega uye kuzadza diki kusakwana mu substrate.
HPMC zvakare isarudzo ine hushamwari kune yakaonda layer maumbirwo.Sechigadzirwa che cellulose, inoodza uye isina chepfu.Izvi zvinoreva kuti HPMC haina zvinokuvadza zvakatipoteredza kana hutano hwevanhu.Pamusoro pezvo, HPMC inovandudza kugadzikana nekudzikisa tsvina uye kudzivirira zvakanyanya kugadzirisa kana kutsiva.
Chekupedzisira, HPMC inodhura-inoshanda uye inowanikwa zvakanyanya.Inogadzirwa-zhinji uye inotengeswa mumusika wepasi rose, zvichiita kuti iwanikwe kune vese vanogadzira uye vekupedzisira-vashandisi.HPMC inewo hupenyu hurefu hwesherufu, zvinoreva kuti inogona kuchengetwa kwenguva yakareba pasina kurasikirwa nemhando yayo kana kushanda kwayo.
Mukupedzisa, HPMC yakanakisa thickener kune putty coating musanganiswa.Iyo inopa huwandu hwakawanda hwemabhenefiti anosanganisira yakagadziridzwa processability, kuyerera, kuyera uye kunamatira.Pamusoro pezvo, ishamwari yezvakatipoteredza, inodhura-inoshanda uye ine huwandu hwakawanda hwekushandisa.Saka nekudaro, HPMC isarudzo yakakurumbira kune vese vari vaviri novice uye vane ruzivo plasterers vachitsvaga kuwana yakatsetseka, kunyangwe pamusoro pamadziro uye sirin'i.
Nguva yekutumira: Jul-11-2023