1. Wet yakasanganiswa dhaka: yakasanganiswa dhaka imhando ye simende, yakanakisa aggregate, musanganiswa uye mvura, uye zvinoenderana nehunhu hwezvinhu zvakasiyana-siyana, zvichienderana neimwe reshiyo, mushure mekuyerwa pachiteshi chekusanganisa, yakasanganiswa, inotakurwa kuenda kunzvimbo iyo rori inoshandiswa, uye yakapinda muChitoro chakakosha mugaba uye shandisa iyo yakapedzwa yakanyorova musanganiswa kwenguva yakatarwa.
2.Hydroxypropyl methyl cellulose inoshandiswa sechinhu chinochengetedza mvura yesamende dhaka uye retarder yekupomba dhaka. Panyaya yegypsum sebhainda yekuvandudza kushandiswa uye kurebesa nguva yekushanda, kuchengetwa kwemvura kweHPMC kunodzivirira slurry kubva pakuputika nekukurumidza mushure mekuoma, uye inovandudza simba mushure mekuoma. Kuchengetwa kwemvura chinhu chakakosha chehydroxypropyl methyl cellulose HPMC, uye zvakare iri kunetsa kwevazhinji vepamba wet-musanganiswa vagadziri vedhaka. Zvinhu zvinokanganisa kuchengetedza kwemvura kwedhaka rakasanganiswa zvinosanganisira huwandu hweHPMC yakawedzerwa, viscosity yeHPMC, kunaka kwezvikamu uye tembiricha yenzvimbo yekushandisa.
3.Mabasa makuru ehydroxypropyl methyl celluloseHPMCmudhaka rakanyorova-rakasanganiswa rinonyanya kusanganisira zvinhu zvitatu, imwe yakanaka kwazvo inobata mvura, imwe yacho isimba pakuenderana uye thixotropy yedhaka rakanyorova rakasanganiswa, uye chechitatu ndiko kudyidzana nesimende. Kuchengetwa kwemvura ye cellulose ether kunoenderana nehuwandu hwekunyura kwemvura pachigadziko, kuumbwa kwedhaka, ukobvu hwedhaka redhaka, kudiwa kwemvura kwedhaka, uye nguva yekumisikidza. Iyo yakakwirira kujeka kwehydroxypropyl methyl cellulose, zviri nani kuchengetedza mvura.
4.Zvikonzero zvinokanganisa kuchengetwa kwemvura yedhaka rakanyorova rinosanganisira cellulose ether viscosity, kuwedzera huwandu, particle size uye tembiricha. Iyo yakakura viscosity ye cellulose ether, zviri nani kuchengetedza mvura. Viscosity yakakosha parameter yeHPMC performance. Nokuda kwechigadzirwa chimwe chete, migumisiro yekushandisa nzira dzakasiyana-siyana kuyera viscosity inosiyana zvikuru, uye vamwe vanotova nekaviri kaviri. Naizvozvo, kuenzanisa kwe viscosity kunofanirwa kuitwa nenzira imwechete yekuyedza, kusanganisira tembiricha, spindle, nezvimwe.
5.Kazhinji kutaura, iyo yakakwirira viscosity, zviri nani kuchengetedza mvura. Nekudaro, iyo yakakwira viscosity, iyo yakakwira molecular huremu hweHPMC uye inodzika iyo solubility yeHPMC, iyo ine kukanganisa kwakashata pakusimba uye kuita kwekuvaka kwedhaka. Iyo yakakwirira iyo viscosity, iyo inonyanya kuoneka iyo thickening mhedzisiro yedhaka, asi haina hukama hwakananga. Iyo yakakwirira iyo viscosity, iyo inowedzera viscous dhaka rakanyorova, zviri nani kuita kwekuvaka, kuita kweiyo viscous scraper uye yakakwirira kunamatira kune substrate. Nekudaro, iyo yakawedzera kusimba kwesimba revhu rakanyorova pacharo haribatsiri. Izvo zviviri zvivakwa hazvina pachena anti-sag performance. Kusiyana neizvi, imwe yepakati uye yakaderera viscosity asi yakagadziridzwa hydroxypropyl methyl cellulose ine hunyanzvi hwekuita mukuvandudza simba rechimiro chedhaka rakanyorova.
6.Iyo yakawanda yakawanda ye cellulose ether yakawedzerwa kune HPMC yakanyorova dhaka, zviri nani kuchengetedza mvura, uye yakakwirira viscosity, zviri nani kuchengetedza mvura. Fineness zvakare yakakosha kuita index yehydroxypropyl methyl cellulose.
7.Kunaka kwehydroxypropyl methyl cellulose kunewo imwe pesvedzero pakuchengetedza kwayo mvura. Kazhinji, yehydroxypropyl methyl cellulose ine viscosity yakafanana uye kunaka kwakasiyana, iyo idiki iyo yakatsetseka, idiki iyo inochengetedza mvura pasi peiyo imwe yekuwedzera huwandu. zviri nani.
8.Mumvura yakasanganiswa dhaka, kuwedzera kweselulosi ether HPMC yakaderera zvikuru, asi inogona kuvandudza zvakanyanya kushanda kwekuvaka kwedhaka rakanyorova, uye ndiyo inonyanya kuwedzera iyo inonyanya kukanganisa kushanda kwedhaka. Kusarudzwa kunonzwisisika kwehydroxypropyl methyl cellulose, kuita kwedhaka rakanyorova kunokanganisa zvakanyanya.
Nguva yekutumira: Kubvumbi-28-2024