Hydroxypropyl methylcellulose (HPMC) is a cellulose ether inowanzoshandiswa sekuwedzera mune simende-based zvinhu. Zvimiro zvayo zvakasiyana-siyana zvinoita kuti zvive zvakakosha mumhando dzakasiyana-siyana dzekushanda mumhizha yekuvaka. Iko kushandiswa kukuru kweHPMC mu simenti kunosanganisira:
1. Kuchengeta mvura:
Basa: HPMC inoshanda sechinhu chinochengetedza mvura.
Kukosha: Inodzivirira kukurumidza kubuda kwemvura mumusanganiswa wesamende, kuve nechokwadi kuti mvura yakakwana inowanikwa kune hydration yezvikamu zvesimende. Izvi zvinobatsira kuvandudza kushanda uye kugadzira yakasimba uye yakasimba yekupedzisira kongiri kana dhaka.
2. Kukora uye rheology control:
Basa: HPMC inoita seyakakora uye inobatsira mukudzora rheology.
Kukosha: Nekugadzirisa viscosity yemusanganiswa wesimende, HPMC inobatsira kudzivirira kupatsanurwa uye kugadzika kwezvimedu zvakasimba. Inowedzera kushanda uye kushandiswa kwezvinhu zvesimende-based materials, zvichiita kuti zvive nyore kubata.
3. Kuvandudza adhesion:
Basa: HPMC inosimudzira kunamatira.
Kukosha: Kuwedzerwa kweHPMC kunovandudza kunamatira pakati pesimende zvinhu uye akasiyana substrates. Izvi zvinonyanya kukosha mumashandisirwo akadai sematairi adhesives, uko kunamatira kwakasimba kunokosha kune hupenyu hurefu uye kushanda kwe tile pamusoro.
4. Seta nguva yekudzora:
Basa: HPMC inobatsira kudzora nguva yekuvhara.
Kukosha: Zvakakosha mumapurojekiti ekuvaka kugadzirisa nguva yekuisa kuti ienderane nezvinodiwa chaizvo. HPMC inogona kukwenenzvera nguva yekumisikidza yesimende-yakavakirwa zvinhu, ichipa kuchinjika kune akasiyana maapplication.
5. Wedzera maawa ekuvhura:
Basa: HPMC inowedzera maawa ekuvhura.
Kukosha: Nguva yekuvhura ndiyo nguva yekuti simende-yakavakirwa zvinhu zvinoramba zvichishanda mushure mekuvaka. HPMC yakawedzera nguva iyi kuita kuti mashandisirwo uye kugadzirisa kwezvinhu zvive nyore.
6. Crack resistance:
Basa: HPMC inosimudzira kutsemuka kuramba.
Kukosha: Nekuwedzera kuchinjika uye kunamatira kwecementitious matrix, HPMC inobatsira kudzikisa mukana wekutsemuka mune yakarapwa zvinhu. Izvi zvinonyanya kubatsira munzvimbo umo kushanduka kwekushisa kana kufamba kwemaitiro kunogona kuitika.
7. Deredza kupera:
Zvazvinoita: HPMC inobatsira kuderedza shrinkage.
Kukosha: Shrinkage inogona kukonzera kutsemuka mune simende-yakavakirwa zvinhu. HPMC inobatsira kuwana vhoriyamu yakagadzikana panguva yekurapa, kuderedza njodzi yematambudziko ane chekuita nekushomeka.
8. Cement-based tile adhesive:
Basa: HPMC inoshandiswa zvakanyanya mu ceramic tile adhesives.
Nei zvichikosha: Mumataira anonamira maumbirwo, HPMC inopa inodiwa yekunamatira, kushanda uye yakavhurika nguva inodiwa pakuiswa kwayo. Inovimbisa chisungo chakasimba pakati pe tile uye substrate.
9.Kuzvimisa-leveling underlayment:
Basa: HPMC inoshandiswa pakuzvimisa pasi pasi.
Nei zvichikosha: Mukugadzirisa-yega, HPMC inobatsira kuwana yaunoda kuyerera maitiro uye inodzivirira kupatsanura uye kugadzirisa. Inobatsira kuburitsa nzvimbo yakatsetseka uye yakaenzana.
10. Dhaka uye Plaster:
Chinangwa: HPMC inowanzowedzerwa kune dhaka uye plasters.
Kukosha: HPMC inovandudza kushanda, kunamatira uye kuita kwese kwematokari nemapurasita mukupurasita nekupedza maapplication.
Iko kushandiswa kwehydroxypropyl methylcellulose mune simende-yakavakirwa zvinhu zvakawanda. Inogadzirisa matambudziko akasiyana-siyana ane chokuita nekugadzirwa, kushandiswa uye kushanda kwezvinhu izvi, zvichiita kuti zvigadziriswe uye zvakavimbika mumhando dzakasiyana-siyana dzekuvaka.
Nguva yekutumira: Zvita-18-2023