Mvura yakasanganiswa dhaka: dhaka rakasanganiswa imhando yesimende, yakasanganiswa, yakasanganiswa nemvura, uye zvichienderana nehunhu hwezvinhu zvakasiyana-siyana, zvichienderana nehumwe chiyero, mushure mekuyerwa pachiteshi chekusanganisa, chakasanganiswa, chinoendeswa kunzvimbo uko rori inoshandiswa, uye inopinda muChitoro chakakosha chigadziko uye shandisa yakapedzwa yakanyorova musanganiswa kwenguva yakatarwa.
Hydroxypropyl methylcellulose inoshandiswa sechinhu chinochengeta mvura mudhaka resimende uye retarder pakupomba 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.Kuchengetedzwa kwemvura chinhu chakakosha chehydroxypropyl methylcellulose HPMC, uye zvakare iri kunetsekana nevazhinji vekumba vakanyorova-musanganiswa vanogadzira dhaka.Zvinhu zvinokanganisa kuchengetedza kwemvura kwedhaka rakasanganiswa zvinosanganisira huwandu hweHPMC yakawedzerwa, viscosity yeHPMC, kunaka kwezvikamu uye tembiricha yenzvimbo yekushandisa.
Kune matatu makuru mabasa ehydroxypropyl methylcellulose HPMC mune yakanyorova-musanganiswa dhaka, imwe yakanakisa yekubata mvura, imwe isimba pakuenderana uye thixotropy we wet-musanganiswa dhaka, uye yechitatu 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 methylcellulose, zviri nani kuchengetedza mvura.
Zvinhu zvinokanganisa kuchengetwa kwemvura yedhaka-yakasanganiswa dhaka zvinosanganisira 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.
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 methylcellulose ine basa rakanakisa mukuvandudza simba rechimiro chedhaka rakanyorova.
Iyo yakakura huwandu hweselulosi ether yakawedzerwa kuPMC yakanyorova dhaka, zviri nani kuchengetedza mvura, uye iyo yakakwirira viscosity, zviri nani kuchengetedza mvura.Fineness zvakare yakakosha kuita chiratidzo chehydroxypropyl methylcellulose.
Iko kunaka kwehydroxypropyl methylcellulose zvakare kune imwe pesvedzero pakuchengetedza kwayo mvura.Kazhinji, kune hydroxypropyl methylcellulose ine viscosity yakafanana uye kunaka kwakasiyana, iyo idiki iyo yakatsetseka, iyo diki yekuchengeta mvura mhedzisiro pasi pemwero wekuwedzera.zviri nani.
Mumvura yakasanganiswa dhaka, iyo yekuwedzera yakawanda ye cellulose ether HPMC yakanyanya kuderera, asi inogona kuvandudza zvakanyanya kugadzirwa kwedhaka rakanyorova, uye ndiyo inonyanya kuwedzera iyo inonyanya kukanganisa kushanda kwedhaka.Kusarudzwa kunonzwisisika kwehydroxypropyl methylcellulose, kuita kwedhaka rakanyorova kunokanganisa zvakanyanya.
Nguva yekutumira: Kubvumbi-25-2023