Hydroxypropyl methylcellulose (HPMC) i polymer yakawanda inoshanda iyo inoshandiswa zvakanyanya muindasitiri yekuvaka nekuda kweiyo yakasarudzika zvivakwa uye kushanda kwayo. Iyo komputa inotorwa kubva ku cellulose uye yakagadziridzwa nekuwedzera hydroxypropyl uye methyl mapoka. HPMC saka inoratidza huwandu hwezvivakwa zvinoita kuti ikwane kune akasiyana maapplication muchikamu chekuvaka.
Kuchengeta mvura uye kukora zvivakwa:
Rimwe remabasa ekutanga eHPMC mukuvaka kugona kwayo kuita semumiriri wekuchengetedza mvura. Izvi zvakakosha kune simende-yakavakirwa zvinhu, sezvo kuchengetedza huwandu hwemvura kwakakosha kune yakakodzera hydration uye kurapa. HPMC inobatsira kudzivirira kukurumidza kubuda kwemvura, kuve nechokwadi chekuti musanganiswa wesimende unoramba uchishanda kwenguva yakareba.
HPMC inogona zvakare kushandiswa seyakakora kuwedzera viscosity yezvinhu zvekuvaka. Izvi zvinonyanya kukosha mumashandisirwo akadai sematairi adhesives uye majoini majoini, izvo zvinoda kusimba kwakasimba kwekushandiswa kuri nani uye kubatana.
Kuvandudza machinability:
HPMC inobatsira kuvandudza kushanda kwedhaka uye kongiri musanganiswa. Nekudzora zviri mukati memvura uye kuwedzera rheological properties, zvinhu izvi zvinogona kubatwa uye kushandiswa zviri nyore. Izvi zvinonyanya kukosha panguva yekuvaka senge plastering, rendering uye masonry basa.
Wedzera kusungirirwa kwetairi adhesive:
Mune mataira anonamira, HPMC inovandudza kunamatira nekupa inowirirana viscosity. Izvi zvinovimbisa kuti mataira anonamira zvakasimba kune substrate, kudzivirira matambudziko akadai sedebonding kana peeling nekufamba kwenguva. Iwo anodzorwa ekuchengetedza mvura zvivakwa zveHPMC anoitawo basa rakakosha mukuwana yakakwana yekunamatira.
Crack resistance uye kuvandudzwa kusimba:
Kuwedzera HPMC kune simende-based formulations inogona kubatsira kuderedza shrinkage. Izvi zvinonyanya kubatsira kune zvikumbiro zvakaita sekongiri, uko kuderedza kutsemuka kwakakosha kune kutendeseka kwechimiro uye kusimba kwechigadzirwa chakapedzwa. HPMC inobatsira kuchengetedza kutendeseka kwezvinhu sezvainorapa uye makore.
Self-leveling compounds:
HPMC inowanzoshandiswa mumakomisheni ekuzvimisa-leveling kugadzira nzvimbo yakatsetseka, yakati sandara mumashandisirwo epasi. Iwo ekuchengetedza mvura zvimiro zveHPMC anoita basa rakakosha mukudzora nguva yekuomesa yeaya makomisheni, achibvumira kwakaringana kudzikamisa pasina kukasika.
Gypsum-based products:
HPMC chinhu chakakosha chekuwedzera mune zvigadzirwa zvegypsum senge gypsum. Inovandudza kushanda kweiyo stucco, inosimudzira kunamatira kumusoro, uye inobatsira kuwana inowirirana uye kunyange kupera. Kubata kwemvura kweHPMC kunonyanya kubatsira mune gypsum-based application.
Exterior Insulation uye Finishing Systems (EIFS):
EIFS yakakurumbira cladding system muzvivakwa, ichipa thermal insulation uye kupera kwekushongedza. HPMC inoshandiswa muEIFS maumbirwo ekuvandudza inonamira zvivakwa zveprimer uye kuve nechokwadi chekubatana kwakasimba pakati pebhodhi rekudzivirira uye substrate.
Insulation mortar:
HPMC chinhu chakakosha cheiyo thermal insulation mortar. Aya madhaka anoshandiswa mukuvaka kwezvivakwa zvinoshandisa simba kuti zviwedzere kupisa kwemafuta. HPMC inobatsira mukuchengetedza kuenderana kunodiwa kuitira kuti madhaka aya agone kushandiswa zvinobudirira kune akasiyana siyana.
Kudzorwa kuburitswa kwezvinowedzera:
HPMC inogona kushandiswa kuvharidzira uye kudzora kuburitswa kweakasiyana ekuwedzera mune zvekuvaka. Izvi zvinonyanya kukosha kana kusunungurwa zvishoma nezvishoma kwezvinhu zvakadai sebiocides kana corrosion inhibitors kunodiwa kuti uwane kushanda kwenguva refu uye kuchengetedzwa kwezvinhu zvekuvaka.
Emulsion kugadzikana:
Mukuvaka zvikumbiro uchishandisa emulsions, senge asphalt emulsions, HPMC inoshanda seyakagadzikana. Inobatsira kudzivirira mvura uye bhitumini kubva pakuparadzanisa, kuve nechokwadi chekugadzikana uye kufanana kwemulsion.
Kuenderana nezvimwe zvinowedzera:
HPMC inowirirana nezvimwe zvakasiyana-siyana zvekuwedzera zvekuvaka. Izvi zvakasiyana-siyana zvinobvumira vanogadzira kuti vagadzirise mashandiro ezvivakwa zvekuvaka kune chaiwo mapurojekiti zvinodiwa, kungave kugadzirisa nguva yekumisikidza, kuvandudza kunamatira kana kusimudzira kuita kwese kwechinhu.
Green kuvaka maitiro:
HPMC inowanzofarirwa mune zvakasvibira zvekuvaka maitiro nekuda kweiyo biodegradability uye kushomeka kwemamiriro ekunze. Kushandiswa kwaro kunopindirana nemisimboti yekuvaka yakagadzikana, zvichiita kuti ive sarudzo inoyevedza yemapurojekiti ane hushamwari.
Joint Compound uye Texture Coating:
Mune majoini anonamira uye mameseji machira, HPMC inovandudza kuita kwese nekupa inodiwa rheology, nyore kushandisa uye sanding zvivakwa. Inoitawo basa mukuvandudza kunamatira kwezvinhu izvi kune pamusoro.
Caulks uye sealants:
Mukugadzira macaulks uye sealants, HPMC inobatsira kuwana inodiwa kuenderana uye extrudability. Inobatsira kuvandudza kushanda kwese kwezvigadzirwa izvi nekuona kuti kunamatira kwakakodzera uye kuchinjika kunochengetedzwa nekufamba kwenguva.
Deredza sagging mu vertical application:
Zvemashandisirwo akatwasuka senge mapendi uye pendi, HPMC inobatsira kudzivirira sag nekupa thixotropic zvivakwa. Izvi zvakakosha kuchengetedza yunifomu ukobvu panzvimbo yakatwasuka pasina zvinhu zvinodonha kana kuyerera.
Mukupedzisa, hydroxypropyl methylcellulose inoita basa rakakosha muindasitiri yekuvaka, ichipa huwandu hwakawanda hwezvakanakira maererano nekuchengetedza mvura, kushanda, kunamatira uye kusimba. Kushandiswa kwaro kwakasiyana-siyana mumhando dzakasiyana-siyana dzekuvaka kunoita kuti ive yekuwedzera inodiwa kuti uwane izvo zvinodiwa zvechigadzirwa chekupedzisira. Sezvo maitiro ekuvaka ari kuramba achishanduka, HPMC inogona kuwedzera kukosha mukuvandudza mashandiro uye kusimba kwezvinhu zvekuvaka.
Nguva yekutumira: Zvita-18-2023