Basa reHPMC mudhaka rakanyorova
Wet musanganiswa dhaka: Yakasanganiswa dhaka imhando yesimende, yakasanganiswa, yakasanganiswa nemvura, uye zvinoenderana nemidziyo yezvakasiyana zvikamu, mune imwe chikamu, mushure mekuyerwa pachiteshi chekusanganisa, chakasanganiswa, chinotakurwa kuenda kunzvimbo inoshandiswa ne rori, mugaba rekuchengetera rakatsaurirwa, uye rakashandiswa munguva yakatarwa musanganiswa wemvura wapera.
Hydroxypropyl methyl cellulose inoshandiswa semvura inochengetedza dhaka resimende, retarder mortar kupomba.Mu gypsum sebhainda yekuvandudza kushandiswa uye kuwedzera nguva yekushanda, hydroxypropyl methylcellulose HPMC kuchengetedza mvura kuitira kuti slurry mushure mekuoma irege kukurumidza uye kutsemuka, kuomesa kuvandudza simba.Kuchengeta mvura chinhu chakakosha chehydroxypropyl methyl cellulose HPMC, uye iri zvakare kunetseka kwevazhinji vanogadzira dhaka rakanyorova.Zvinhu zvinokanganisa kuchengetedza kwemvura kwedhaka rakanyorova zvinosanganisira huwandu hweHPMC yakawedzerwa, viscosity yeHPMC, kunaka kwezvikamu uye tembiricha yenzvimbo yekushandisa.
Hydroxypropyl methyl cellulose HPMC mune yakanyorova dhaka basa guru mune matatu maficha, imwe yakanaka kwazvo yekubata mvura, yechipiri ndeyekunyorova kwedhaka kusachinja-chinja uye thixotropy wesimba, yechitatu ndiko kudyidzana nesimende.Cellulose ether kuchengetwa kwemvura kunoenderana nehuwandu hwekunyudzwa kwemvura pachigadziko, dhaka redhaka kuumbwa, dhaka dhaka ukobvu, dhaka remvura kudiwa, kuseta nguva.Iyo yakakwirira kujeka kwehydroxypropyl methyl cellulose, zviri nani kuchengetedza mvura.
Zvinhu zvinokanganisa kuchengetwa kwemvura yedhaka rakanyorova zvinosanganisira viscosity ye cellulose ether, kuwedzera huwandu, saizi yechikamu uye tembiricha.Iyo yakakura viscosity ye cellulose ether, zviri nani kuchengetedza mvura.Viscosity chinhu chakakosha parameter yeHPMC kuita.Nokuda kwechigadzirwa chimwe chete, kushandisa nzira dzakasiyana-siyana kuyera viscosity yemigumisiro yakasiyana-siyana, vamwe kunyange nechikamu cheviri.Naizvozvo, kuenzanisa kwe viscosity kunofanirwa kuitwa nenzira imwechete yekuyedza, kusanganisira tembiricha, rotor, nezvimwe.
Kazhinji kutaura, iyo yakakwirira viscosity, zviri nani kuchengetedza mvura.Nekudaro, iyo yakakwira viscosity, iyo yakakwira iyo molecular huremu hweHPMC, uye yakaderera kunyungudika kweHPMC, iyo ine kukanganisa kwakashata pakusimba uye kuita kwekuvaka kwedhaka.Iyo yakakwirira viscosity, iyo inonyanya kuoneka iyo thickening mhedzisiro yedhaka, asi haina hukama hwakananga.Iyo yakakwira viscosity, iyo inonamira dhaka rakanyorova, kuita kwakanaka kwekuvaka, viscous scraper performance uye yakakwirira kunamatira kune substrate.Zvisinei, kuvandudzwa kwesimba rekugadzirisa kwevhu rakanyorova pacharo hakuna kubatsira.Kuvakwa kwese, kuita hakusi pachena kunopesana - kurembera kuita.Kusiyana neizvi, imwe yepakati uye yakaderera viscosity asi yakagadziridzwa hydroxypropyl methylcellulose ine basa rakanakisa mukuvandudza simba rechimiro chedhaka rakanyorova.
Iyo yakakura huwandu hweselulosi ether PMC yakanyorova dhaka yakawedzerwa, zviri nani kuchengetedza mvura, iyo yakakwirira viscosity, zviri nani kuchengetedza kwemvura.Fineness zvakare yakakosha kuita index yehydroxypropyl methyl cellulose.
Iko kunaka kwehydroxypropyl methyl cellulose zvakare kune imwe pesvedzero pakuchengetedza kwayo mvura.Mumamiriro ezvinhu akajairwa, viscosity yakafanana uye kunaka kwakasiyana kwehydroxypropyl methyl cellulose, pasi pehuwandu hwakafanana hwekuwedzera, kudiki kwehunyoro hwekuchengetedza mvura kuri nani.
Mumatope emvura, kuwedzera kwe cellulose ether HPMC yakaderera zvikuru, asi inogona kuvandudza zvakanyanya kushanda kwekuvaka kwemvura yakanyorova, ndiyo inonyanya kuwedzera iyo inonyanya kukanganisa kushanda kwedhaka.Kuita kwedhaka rakanyorova kunokonzerwa zvakanyanya nekusarudzwa kwakanaka kwehydroxypropyl methyl cellulose.
Nguva yekutumira: Sep-16-2022