Hydroxypropyl methylcellulose (HPMC) is a cellulose ether inotorwa kubva kune yakasikwa cellulose uye inoshandiswa zvakanyanya muindasitiri yekuvaka nekuda kweiyo yakasarudzika zvivakwa uye kuita zvakasiyana.Muzvigadzirwa zvecementitious, HPMC inoita mabasa akasiyana-siyana, kusanganisira kuvandudza kushanda, kuchengetedza mvura, kunamatira, uye kusimba.
1. Wedzera kushanda:
Kushanda basa chinhu chakakosha chekongiri uye dhaka, inokanganisa kuisa kwavo, kusanganisa uye kupedzisa maitiro.HPMC yekuwedzera inoita basa rakakosha mukuvandudza processability nekudzikisira zvinodikanwa zvemvura uchichengetedza kuenderana kunodiwa.Iyo yakakwirira yekuchengetedza mvura yeHPMC inowedzera kushanda kwekuisa zvirinani uye kupedzisa kwekongiri nedhaka musanganiswa.Uye zvakare, HPMC yakagadziridzwa simende zvinhu zvinoratidzira zvakagadziridzwa rheological zvivakwa, kufambisa nyore kupomba uye kudira mabasa muzvirongwa zvekuvaka.
2. Kuchengeta mvura:
Kuchengetedzwa kwemvura kwakakosha pakuita kuti hydration yakakwana yezvinhu zvesimende, kunyanya munzvimbo dzinopisa kana dzakaoma umo kurasikirwa kwemwando nekukurumidza kunogona kuitika.HPMC yekuwedzera inoshanda seanoshanda ekuchengetedza mvura, kudzivirira kuoma kwekongiri uye dhaka musanganiswa.HPMC inononotsa kubuda kwemvura nekugadzira firimu rakatetepa rakatenderedza masimende, nekudaro ichirebesa iyo hydration maitiro uye kukurudzira yakakwana kusimudzira simba.Chimiro ichi chinonyanya kubatsira munzvimbo dzepamusoro-tembiricha kana pasi-munyoro, uko kuchengetedza hunyoro hwakakwana kunogona kuve kwakaoma.
3. Wedzera kunamatira:
Chisungo pakati pecementitious zvinhu uye substrate yakakosha pakuita uye hupenyu hurefu hwezvinhu zvekuvaka senge mataira adhesives, plasters uye plasters.HPMC additives inovandudza kunamatira nekusimudzira chisungo chesimba pakati pechinhu chepamusoro uye chinonamira kana coating.Iyo firimu-inogadzira zvimiro zveHPMC inogadzira chipingamupinyi chinonatsiridza kusangana pakati peanonamira neiyo substrate, zvichikonzera hukuru hwekubatanidza kuita.Pamusoro pezvo, HPMC inobatsira kudzikisira kuitika kwekutsemuka kwe shrinkage, nekudaro ichivandudza kusimba kwese kweiyo yakasungwa nzvimbo.
4. Kuvandudza kusimba:
Durability chinhu chakanyanya kutariswa mukuvaka, kunyanya muzvivakwa zvakafumurwa kune yakaoma mamiriro ezvakatipoteredza kana kushushikana kwemagetsi.HPMC yekuwedzera inobatsira kuvandudza kusimba kwesimende zvinhu nekuwedzera kuramba kwavo kune zvinhu zvakaita sechando-inonyunguduka kutenderera, kurwisa kwemakemikari uye abrasion.Nekuvandudza kushanda uye kuderedza kupera kwemvura, HPMC inobatsira kudzikisa kupinza kwezvinhu zvinokuvadza mukongiri nedhaka, nekudaro vachiwedzera hupenyu hwavo hwesevhisi.Pamusoro pezvo, HPMC-yakagadziridzwa zvinhu zvinoratidzira yakakwidziridzwa uye inomanikidza simba, nekudaro inovandudza kuita kwemaitiro uye kusimba.
5. Mabhenefiti ebudiriro inoenderera mberi:
Pamusoro pemabhenefiti avo ehunyanzvi, zvekuwedzera zveHPMC zvinounza zvakakosha kusimudzira muchikamu chekuvaka.Sezvinhu zvinoodza uye zvinogonekazve zvakatorwa kubva ku cellulose, HPMC inobatsira kudzikisa kukanganiswa kwezvakatipoteredza kwezviitiko zvekuvaka.Nekugadzirisa zvivakwa zvesimende zvinhu, HPMC inogona kushandisa yakaderera simende zvirimo mumusanganiswa, nekudaro ichidzikisa kuburitsa kabhoni kwakabatana nekugadzira simende.Pamusoro pezvo, HPMC yakasimbisa madhaka uye kongiri inobatsira kuvandudza simba rezvivakwa nekuvandudza tembiricha yekudzivirira zvivakwa uye kuderedza kudiwa kwekudziya kwekugadzira uye kutonhora.
6. Zvinotarisirwa:
Kudiwa kwezvivakwa zvekuvaka uye maitiro anoramba achikura, achityaira hunyanzvi mukuvandudza kwezvakatipoteredza zvekuwedzera senge HPMC.Ramangwana reHPMC muindasitiri yekuvaka rakajeka kwazvo, uye tsvakiridzo yazvino yakatarisana nekuwedzera mashandiro ayo nekuwedzera mashandisirwo ayo.Pamusoro pezvo, kufambira mberi mumagadzirirwo ekugadzira uye tekinoroji yekugadzira inotarisirwa kukwidziridza mashandiro uye mutengo-unoshanda wezvekuwedzera weHPMC, zvichiita kuti kugamuchirwa kwavo kwakawanda mumapurojekiti ekuvaka pasirese kuwedzere.
Hydroxypropyl methylcellulose (HPMC) additives inoita basa rakakosha mukusimudzira zvivakwa uye kushanda kwecementitious zvinhu mumashandisirwo ekuvaka.Kubva pakuvandudzwa kwekuvaka uye kuchengetwa kwemvura kusvika pakunamira kwakawedzerwa uye kusimba, HPMC inopa huwandu hwakawanda hwemabhenefiti anobatsira kuvandudza kunaka, kusimba uye hupenyu hurefu hwenzvimbo yakavakirwa.Sezvo indasitiri yekuvaka ichiramba ichiisa pamberi pekusimudzira uye hunyanzvi, HPMC inotarisirwa kuramba iri chinhu chakakosha mukuvandudza kwepamusoro-kuita, zvine hushamwari zvivakwa zvekuvaka.
Nguva yekutumira: Feb-27-2024