Hydroxypropyl Methyl Cellulose (HPMC) ikemikari yekuwedzera inoshandiswa zvakanyanya mumaindasitiri ekuvaka uye ezvivakwa zvekuvaka uye inotamba akasiyana mabasa mukongiri.
1. Mvura yekuchengetedza mhedzisiro
Hydroxypropyl methylcellulose ine yakanaka kuchengetedza mvura. Iyi cellulose inogona kutora mvura yakawanda uye zvishoma nezvishoma kuisunungura panguva yekuvaka, nekudaro inovandudza zvakanyanya kuchengetwa kwemvura kwekrete. Kuchengeta mvura kunobatsira kuchengetedza hunyoro hwakakwana panguva yekutanga kuomarara kwekongiri uye kudzivirira hunyoro kubva pakubuda nekukurumidza. Izvi zvakakosha pakukura zvishoma nezvishoma kwesimba rekongiri, kuderedza kuitika kwekutsemuka uye kuwedzera kusimba kwekongiri.
2. Kuvandudza kushanda kwekuvaka
Kuwedzera hydroxypropyl methylcellulose kune kongiri kunogona kuvandudza kushanda kwayo. Ichi chinowedzera chinowedzera viscosity yekrete, zvichiita kuti zvive nyore kushanda nayo panguva yekuvaka uye kuderedza kupatsanurwa uye kubuda ropa. Inoita kuti kongiri ive nani kunyungudika uye kunamatira, nekudaro zvichibatsira kuvandudza kugona uye kunaka kwekuvaka, kunyanya mumashandisirwo akaita senge wet musanganiswa dhaka uye self-leveling dhaka.
3. Kuwedzera lubricity
Iyo colloid yakaumbwa neHPMC mune aqueous mhinduro inogona kupa lubrication. Iyi lubrication inoderedza kusakara pamidziyo yekupomba uye mold panguva yekutakura kongiri uye kuiswa. Panguva imwecheteyo, inogona zvakare kugovera kongiri zvakaenzana, kuderedza mutoro pamichina yemagetsi, uye kuvandudza kushanda kwekuvaka uye hupenyu hwebasa rezvishandiso zvekuvaka.
4. Deredza kubuda ropa uye kuparadzana
HPMC inoita basa rekudzikamisa mukongiri uye inogona kuderedza zvakanyanya kubuda ropa uye kusarura matambudziko mukongiri. Izvi zvinodaro nekuti HPMC inokwanisa kuwedzera viscosity yekongiri slurry, nekudaro ichichengeta yakasimba zvimedu zvakagovaniswa uye kudzivirira kupatsanurwa kwemvura uye yakanaka aggregate. Izvi zvakakosha kuti uvandudze kufanana uye huwandu hwese hwekongiri.
5. Kudzora shrinkage uye kuputika
Iyo mvura-yekuchengetedza mhedzisiro yehydroxypropyl methylcellulose inobatsira kunonoka chiyero chekuomesa shrinkage yekongiri, nekudaro ichidzikisa njodzi yekutsemuka. Concrete inowanzoita shrinkage cracks nekuda kwekukurumidza kurasikirwa kwemvura panguva yekuoma nekuoma. HPMC inogona kuderedza dambudziko iri nekuchengetedza huwandu hwakakodzera hwehunyoro uye nekuvandudza vhoriyamu kugadzikana kwekongiri.
6. Kunonotsa nguva yekuisa
HPMC ine imwe mhedzisiro yekunonotsa nguva yekumisikidza uye inogona kudzora chiyero chekuisa kongiri. Izvi zvinobatsira zvikuru mune mamwe mamiriro ekuvaka akakosha, kunyanya mukupisa kana kana kufamba kwenguva refu kuchidikanwa. Kunonotsa nguva yekumisikidza kunovimbisa kuti kongiri icharamba ichiyerera uye inoshanda zvakanaka kana yasvika panzvimbo yekuvaka.
7. Kuvandudza chando-thaw resistance
HPMC inogona kuvandudza kutonhora-kunyungudika kuramba kwekongiri. Izvi zvinodaro nekuti basa rayo rekuchengetedza mvura uye kuvandudza chimiro chepore chinogona kuderedza chando chinowedzera kudzvanywa kwekongiri munzvimbo dzakaderera tembiricha, nekudaro ichidzikisa kukuvadzwa kwekongiri chimiro chinokonzerwa nechando-thaw cycles.
8. Kuvandudza kusimba kwekuora
Hydroxypropyl methylcellulose inogona kuwedzera kuwanda kwekongiri, kuderedza porosity, uye kutadzisa kupinda kwemvura nemakemikari anokuvadza. Ichi chivakwa chinonatsiridza kushora kwekongiri uye inowedzera hupenyu hwayo hwesevhisi, kunyanya munzvimbo dzakafumurwa kune chloride ion.
9. Kurudzira kushanda kwekubatana
HPMC inobatsira kuvandudza chisungo simba pakati kongiri uye zvimwe zvinhu. Semuenzaniso, pakunamira zvinhu zvekushongedza zvakaita sematairi eceramic nematombo, HPMC inogona kukwidziridza kunamatira kwedhaka, kuderedza kudonhedza uye kuchera, uye kuve nechokwadi chekuvaka.
10. Green uye zvakatipoteredza ushamwari
Sechigadzirwa che cellulose ether, hydroxypropyl methylcellulose ine yakanaka biodegradability uye ine zvishoma zvinokanganisa nharaunda. Panguva imwecheteyo, inogonawo kuderedza huwandu hwesimende inoshandiswa mukongiri, nokudaro kuderedza carbon dioxide emissions panguva yekugadzira uye kuenderana nekuchengetedzwa kwezvakatipoteredza zvinodiwa zvezvivakwa zvakasvibirira.
Basa rehydroxypropyl methylcellulose mukongiri rakasiyana uye rakazara, rinofukidza zvinhu zvakawanda kubva pakuvandudzwa kwekuita kwekuvaka kusvika kusimba rekusimudzira. Kuburikidza nekushandisa zvine musoro kweHPMC, kuita uye kuvaka kwemhando yekongiri inogona kuvandudzwa zvakanyanya kuti isangane nezvinodiwa zvemazuva ano ekuvaka mapurojekiti epamusoro-inoshanda kongiri. Kuchengeta kwayo mvura kwakanakisa, lubricity uye kugadzikana kunoita kuti isagadzike pakati pezvivakwa zvekuvaka.
Nguva yekutumira: Jul-05-2024