introduce
Hydroxypropyl methylcellulose, inowanzo zivikanwa seHPMC, ikomisheni yakawanda inoshandiswa zvakanyanya muindasitiri yekuvaka sedhaka stabilizer.Ichi chekuwedzera chemakemikari chinoita basa rakakosha mukuvandudza mashandiro uye zvivakwa zvemateki anoshandiswa mune akasiyana maapplication anosanganisira masonry, mataira uye plasters.
1. Nzwisisa HPMC
A. Chimiro chemakemikari uye kuumbwa
Hydroxypropylmethylcellulose ndeyemhuri ye cellulose ether uye inotorwa kubva kumapolima echisikigo akadai sehuni kana donje pulp.Chimiro chayo chemakemikari chinosanganisira zvikamu zveglucose zvakabatanidzwa ne β-(1 → 4) -glycosidic bonds.Hydroxypropyl uye methyl mapoka akabatanidzwa kune cellulose musana anopa HPMC yakasarudzika zvivakwa.
B. Zvinhu zvemuviri
Solubility: HPMC inoratidzira yakanakisa solubility mumvura, ichigadzira yakajeka, viscous mhinduro.
Rheological Behavior: Iyo rheological zvimiro zveHPMC zvinogona kugadziridzwa kudzora viscosity uye kuyerera zvimiro zvedhaka.
Thermal Kugadzikana: HPMC inoramba yakagadzikana pamusoro pehupamhi hwekushisa, ichiita kuti ive yakakodzera kune zvivakwa zvekuvaka mumamiriro akasiyana ezvakatipoteredza.
2. Basa reHPMC mudhaka
A. Kuchengeta mvura
HPMC ishandiso inochengetedza mvura inodzivirira kurasikirwa nekukurumidza kwehunyoro kubva mumusanganiswa wedhaka.Izvi zvakakosha kuchengetedza kushanda uye kubvumira nguva yakakwana yekushandiswa kwakakodzera.
B. Kuvandudza kunamatira
Iyo inonamira zvimiro zveHPMC inofambisa zvirinani kubatana pakati pedhaka neiyo substrate, nekudaro ichiwedzera iyo yakazara simba uye kusimba kwechinhu chekuvaka.
C. Gadzirisa rheology
Nekugadzirisa rheological maitiro edhaka, HPMC inobatsira kudzora kuenderana kwayo, nyore kushandisa, uye kugona kuomerera kune yakatwasuka nzvimbo pasina kusagika.
D. Anti-sagging
Iyo thixotropic zvimiro zvematope ane HPMC inova nechokwadi chekuti zvinhu zvinoramba zviri panzvimbo yakatwasuka, kudzivirira kudonha kana kudonha panguva yekuvaka.
E. Seta nguva yekudzora
HPMC inogona kunyatso kudzora nguva yekumisikidza yemateki, kuve nechokwadi kuti inorapa nechiyero chakakwana kuti isangane nezvinodiwa zvekushandisa.
3. Kushandiswa kweHPMC mukuvaka
A. Masonry dhaka
HPMC inowanzoshandiswa mumasonry madhaka kuvandudza kushanda, kuchengetedza mvura uye simba rebhondi, nekudaro kuvandudza kunaka kwekuvaka uye kusimba.
B. Tile Adhesive
Mumatairi anonamira maumbirwo, HPMC inova nechokwadi chekunamatira kwakakodzera, inoderedza kutsvedza uye inosimudzira kusununguka kwekushandisa kwekuvimbika uye kwakanaka kuisirwa tile.
C. Kupurasita
Kuwedzera HPMC kupurasita madhaka kunonatsiridza kuchengetwa kwemvura, kushanda uye kunamatira, zvichikonzera kutsetseka, kusimba kupedzisa kumadziro uye sirin'i.
4. Mabhenefiti ekushandisa HPMC mudhaka
A. Kuvandudza kushanda
HPMC inovandudza kushanda kwedhaka, kuita application uye kubata panguva yekuvaka kuve nyore.
B. Wedzera kuchengetwa kwemvura
Iyo inochengetedza mvura yeHPMC inobatsira kudzivirira kukurumidza kubuda, kuve nechokwadi chekuti dhaka rinoramba riri plastiki kwenguva yakareba, kufambisa kuiswa kwakaringana uye kupera.
C. Kuvandudza kunamatira uye kusimba kwekubatana
Iyo inonamira zvimiro zveHPMC inobatsira kusimbisa chisungo pakati pedhaka neiyo substrate, nekudaro ichiwedzera kutendeseka kwechimiro.
D. Yakagadzikana yemhando
Kushandisa HPMC mukuumbwa kwedhaka kunobvumira kutonga kukuru pamusoro pezvivakwa zvezvinhu, zvichikonzera kuenderana kwemhando mukati mechirongwa chekuvaka.
5 Mhedziso
Hydroxypropyl methylcellulose (HPMC) chinhu chakakosha cheindasitiri yekuvaka sedhaka inodzikamisa ine zvakasiyana siyana zvekushandisa.Hunhu hwayo hwakasiyana hunobatsira kuvandudza kushanda, kuchengetwa kwemvura, kunamatira uye kuita kwese kwemateki mumasonry, tile uye plaster application.Sezvo maitiro ekuvaka ari kuramba achishanduka, HPMC inoramba iri chinhu chakakosha, ichipa vavaki nemakondirakiti zvishandiso zvekuzadzisa zviyero zvepamusoro zvemhando, kusimba uye kugona pamapurojekiti.
Nguva yekutumira: Zvita-18-2023