HPMC, inozivikanwawo sehydroxypropyl methylcellulose, inowedzera inoshanda zvakanyanya inoshandiswa muindasitiri yekuvaka, kunyanya mukugadzira madziro putty. Wall putty inoshandiswa kugadzira uye kuyera madziro pamberi pekupenda, nekudaro ichipa kupera kwakakwana.
Vavaki vazhinji vakave nezvinetso nekudonha munguva yakapfuura. Sag inoitika apo putty inotanga kutsvedza kubva pamadziro nekuda kwehuremu hwayo. Izvi zvinoguma nekusaenzana uye kusashanda kupedzisa kunotora nguva yakawanda nesimba kugadzirisa. Nekudaro, vavaki vakawana mhinduro nekuwedzera HPMC kumadziro putty, iyo inobatsira kuvandudza sag kuramba uye huwandu hwese hwechigadzirwa chekupedzisira.
Pane zvikonzero zvakati kuti nei HPMC iri yekuwedzera inoshanda. Kutanga, inoshanda seyakakora, zvinoreva kuti inobatsira kuwedzera viscosity yezvinhu zve putty. Iyi yakawedzera viscosity inoita kuti zviome kuti zvinhu zvitsvedze kubva pamadziro uye kufambisa zvirinani kunamatira kune pamusoro. Iyo putty's inokwidziridzwa viscosity zvakare inogonesa kuzadza ma microcracks uye madiki madiki mumadziro, ichipa yakatsetseka, yakawanda kunyange pamusoro. Iyi ficha inobatsirawo kudzikisa huwandu hweputty inodiwa kuvhara yakapihwa nzvimbo, zvichikonzera imwe inodhura-inoshanda mhinduro.
Kechipiri, HPMC inoita basa rakakosha mukudzora kumhanya kwekuomesa kwemadziro putty. Iyo yekuomesa inomhanyisa inokanganisa zvakananga kusaga kweiyo putty, uye iyo inononoka-inoomesa putty inowanzo kugadzikana uye isiri nyore kudonha. HPMC inobatsira kudzora chiyero chekubuda kwemvura mune putty zvinhu, izvo zvinozokanganisa nguva yayo yekuoma. Iyi gadziriro inoguma mune yakagadzikana uye inowirirana putty inowoma zvakaenzana, ichideredza mukana wekudonha.
HPMC inogona zvakare kushandiswa kuvandudza kunamatira pakati pemadziro putty uye substrate. Adhesion inoreva dhigirii iyo putty material inonamira pamusoro pepamusoro painoiswa. HPMC inogona kuwedzera zvakanyanya kunamatira nekuti inopa inodzivirira firimu pamusoro, iyo inovandudza kunamatira kweiyo putty kune substrate.
Uye zvakare, HPMC inogona zvakare kubatsira kuchengetedza hunyoro mumadziro putty zvinhu. Kunyangwe mvura iriyo svikiro repakati pekugadzira putty uye kusimba, zvakare ndiyo honzeri huru yekutsemuka uye kusagika kwezvinhu kana mvura yanyungudika nekukurumidza. HPMC inobatsira kuchengetedza hunyoro mune putty zvinhu kwenguva yakareba, ichibvumira iyo putty kuti igadzikane uye yakaoma pasina kudonha.
Kupfupisa, HPMC chinhu chakakosha uye chinoshanda chekuwedzera mumadziro putty, iyo inoita basa rakakosha mukusimudzira anti-sagging pfuma yemadziro putty. Nekukora kwayo, kuomesa chiyero chekudzora, kuvandudza kunamatira uye kuchengetedza mvura zvivakwa, HPMC inopa vavaki mhinduro inoshanda kumatambudziko ekusagi uye inovandudza huwandu hwese hwechigadzirwa chekupedzisira. Kubatsira hakusi chete mukugadzirisa, kugadzikana kwepamusoro pekupedzisira, asiwo mumutengo wekugadzirisa kwekugadzirisa. Naizvozvo, zvinodikanwa kuziva uye kusimbisa basa risingadzoreki reHPMC muindasitiri yekuvaka.
Nguva yekutumira: Aug-15-2023