HPMC (hydroxyprEpropyl methylcellose) inzvimbo yeClongnical polymer inowedzera inoshandiswa zvakanyanya mukuvaka, kunyanya pamasimendi-akavakirwa. Sumo yeHPMC dzinogona kuvandudza zvakanyanya kuita kweiyo coment-based capy-crack kudzikisira, kuvandudza kushanda uye kudzora maitiro ekunyorera, nekudaro achizodzora kuitika kwekupwanya.
Zvemakemikari uye zvepanyama zvivakwa zveHPMC
HPMC ndeye semi-synthetic polymer chemically yakagadziridzwa kubva ku cellulose. Yayo molecular chimiro inosanganisira methyl uye hydroxypruppropyl subsituets, ichipa yakasarudzika solubility, kuremedza, kudzokorora kwemvura uye kugadzirwa kwemvura uye mafirimu ekugadzira. Mainini mainini anosanganisira:
Kukwirira Kwemvura: HPMC ine yakanakisa mvura yekuchengetedza uye inogona kuumba iyo yemvura yekuchengetwa kwemvura mukati mezvinhu zvinononoka kubuda kwemvura.
Kuita kwakasimba: HPMC inogona kuwedzera zvakanyanya zvevhiza yeiyo slurry, nokudaro ichivandudza kushanda kwayo.
Firimu-inogadzira nzvimbo: Yayo yakanaka firimu-yekugadzira kugona kunogona kuumba firimu rinochinja pamusoro pechinyorwa, kupa imwe dziviriro yemuviri.
Iyo pesvedzero mechanism yeHPMC pane kupaza kweiyo coment-based zvigadzirwa
1. Kuchengetwa kwemvura uye kuderedza kweiyo yakaoma shinoge marara
Comentsicious Zviitiko Zvinoitika Zvakakosha Volumetric Shrinkage panguva yakaoma, kunyanya nekuda kwekurasikirwa kwemvura uye kuomesa shrinkage nekuda kwehydration maitiro. Kuomesa Shrinkage marowa anowanzo kukonzerwa nekukurumidzira kwemvura mumvura muchisimbiso mukati mekushushikana panguva yekuomesa, zvichikonzera vhoriyamu yakavanzika, nekudaro zvichikonzera marara. Iyo yekuchengetedza mvura yezvivakwa zveHPMC inotamba yakakosha basa mune izvi:
Inodzora kudzikira kwemvura kubhururuka: HPMC inochengetedza unyoro mumasimende slurry, nekudaro ichidzora chiyero chemvura kubuda kwemvura. Uku kuchengetwa kwemvura hakuiti kunongobatsira kuwedzera iyo hydration yekuita nguva, asi zvakare inoderedza shrinkage inokonzerwa nekubuda kwemvura.
Yunifomu yekugadzirisa maitiro
2. Kuvandudza iyo viscosity uye kugovera kusagadzikana kwezvinhu
HPMC ine chiitiko chakasimba, chinoita basa rakakosha mukuvandudza basa rekushanda uye kufanana kwezvinhu zvakasvibirira:
Kuwedzera viscosity: HPMC inowedzera iyo vhiza yeiyo slurry
Kugoverwa kwunifomu: Nekuwedzera iyo vhiza yeiyo slurry, HPMC inoita kuti kugovaniswa kwemapepa uye mitezo yakadzika zvakanyanya kunyange, zvichikonzera kusagadzikana kwemukati uye kuderedza kupaza nekuda kwekunetseka kwakasarudzika.
3. Simbisa mafirimu-ekugadzira midziyo uye kuchengetedzwa kwemusoro
Iyo firimu-inogadzira zvivakwa zveHPMC rubatsiro kuumba denderedzwa pamusoro pezvinyorwa, izvo zvine mhedzisiro yekudzora pamusoro pemarara:
Kudzivirirwa pamusoro: Iyo inoshanduka firimu redhaka yakaumbwa neye hpmc pamusoro pezvinhu zvinogona kuchengetedza nzvimbo kubva kuKurasireni neyenzvimbo yekunze uye nekukurumidza kunyemwerera kurasikirwa, nekudaro kuderedza kuitika kwemasango emukati.
Kuchinja-chinja chidimbu: Iyi firimu denderedzwa ine imwe nhanho yekuchinja uye inogona kutora chikamu chekushushikana panguva yekushongedza zvishoma, nekudaro kudzivirira kana kudzikisira kuwedzera kwemaza.
4. Ronga maitiro ehystem
HPMC inogona kutungamira iyo hydration process yeiyo simende, iyo inoita basa rakakosha mukuderedza kushushikana kushushikana kunokonzerwa nehyongwe isina kufanana:
Sunungura Hydration: HPMC inogona kuderedza iyo yekukurumidza hydration maitiro, ichibvumira mvura iri muchisimba simbe kuti isunungurwe zvishoma nezvishoma, nekudaro ichipa yunifomu uye yakachengetedzwa nzvimbo yekunyora. Uku kusunungura-kusunungura maitiro kunoderedza kushushikana kwekushushikana kunokonzerwa nekusagadzikana hydration maitiro, nekudaro kuderedza njodzi yekupaza.
Mienzaniso yekushandisa yeHPMC mune yakasarudzika cement-yakavakirwa zvinhu
HPMC inoshandiswa zvakanyanya mumasimendi-yakavakirwa zvinhu, kusanganisira asi isina kungogumira kuzvimiririra, zvekunze madziro madziro, monganda uye kongiri kugadzirisa zvinhu. Izvi zvinotevera mimwe mienzaniso chaiyo yekushandisa:
1. Kuzviisa pasi-pasi pasi zvinhu
Kuzvimirira pasi zvinhu zvinodaira zvakanaka zvinodaira zvakanaka uye kusungira zvinhu zvichidzivirira pamusoro pemarara. HPMC inovandudza kuyerera uye yekupedzisa yekupedzisa yezvinyorwa kuburikidza nekukora kwayo uye mvura yekuchengetwa ichidzora kuitika kwemasango emukati.
2. Kunze kweWall Paint
Pendi yekunze inoda kudiwa kwakanaka uye kupenga kuramba. Iyo firimu-yekugadzira midziyo uye yekuchengetwa kwemvura yeHPMC inovandudza kudengenyeka kweCustom uye kuchinjika, nekudaro kuwedzeredza kukanganisika kwekuvandudza uye kushamisika.
3. Kugadzirisa zvinhu
Concrete kugadzirisa zvinhu zvinoda simba rakanyanya uye nekukurumidza kuomesa paunenge uchichengeta zvakaderera kuoma shrinkage. HPMC provides excellent water retention and hydration control capabilities, allowing the repair material to maintain low dry shrinkage during the hardening process and reduce the risk of cracking after repair.
Kuchenjera pakushandisa HPMC
Kunyangwe HPMC ine kukosha mukuderedza kupaza kwemasimendi-yakavakirwa zvinhu, izvo zvinotevera zvinhu zvichiri kuda kucherechedzwa panguva yekushandisa:
DOSAGE Control: Iyo Dosage yeHPMC inofanirwa kunge iri yakanyatsoenderana neye formula zvinodiwa. Zvakawandisa kana zvishoma zvishoma zvinokanganisa kuita kwezvinhu. Kazhinji kutaura, iyo dosi iri pakati pe0.1% - 0.5%.
Kusanganisa kufanana: HPMC inoda kunyatso kusanganiswa nezvimwe zvinhu kuti zvive nechokwadi chekuti zvinoshanda mumatanda ese slurry.
Mamiriro ekuvaka: Iyo yekuvaka nzvimbo (yakadai sekushisa, humidity) ine chekuita nemhedzisiro yeHPMC, uye inofanira kugadziridzwa nenzira kwayo zvichienderana nemamiriro ezvinhu chaiwo.
Sezvinoratidzwa nechisimba-chakavakirwa zvinhu zvinowedzera, HPMC inoita basa rakakosha mukudzora magetsi ezvemukati-yakavakirwa pakuchengetwa kwemvura kwayo Inononoka kubuda kwemvura, inovandudza kusaenzana kwemidziyo, inodzivirira nzvimbo dzekunyepedzera, uye inodzora maitiro ekunyanyisa, nekudaro achideredza njodzi yekupaza. Naizvozvo, mukushandiswa kwezvinhu zvimende-zvakavakirwa, kushandisa zvine musoro kweHPMC hakugone kungogadzirisa kuita zvinhu, asi zvakare hupenyu hwaro hwebasa uye kuderedza mari yekuchengetedza.
Kutumira Nguva: Jun-26-2024