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Kuoma nekukurumidza Izvi zvinonyanya kukonzerwa nekuwedzerwa kwakanyanya kweupfu hwecalcium yedota (huwandu hweupfu hwecalcium yedota hunoshandiswa mufomura yeputty hunogona kuderedzwa zvakakodzera) hune chekuita nehuwandu hwekuchengetedza mvura hwehydroxypropyl methylcellulose, uye hune chekuitawo nekuoma kwemadziro. Kubvisa...Verenga zvakawanda»
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Hydroxypropyl methylcellulose imhando ye non-ionic cellulose ether inogadzirwa kubva mudonje rakanatswa kuburikidza nemakemikari akasiyana-siyana. Ichinhu chichena chisina hwema, chisina chepfu, chinonyunguduka mumvura uye chinopa mhinduro ye colloidal yakajeka kana kuti ine makore mashoma. Ine hunhu hwe t...Verenga zvakawanda»
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Zita rekuti HPMC muchiChinese nderekuti hydroxypropyl methylcellulose. Haina ionic uye inowanzoshandiswa semushonga unochengetedza mvura mudhaka rakasanganiswa rakaoma. Ndiyo inonyanya kushandiswa kuchengetedza mvura mudhaka. Chigadzirwa che ether chakavakirwa pa polysaccharide chinogadzirwa ne alkalization uye etherification. Haina...Verenga zvakawanda»
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1. Matambudziko anowanzoitika muputty powder inooma nekukurumidza Izvi zvinonyanya kuenderana nehuwandu hweash calcium powder inowedzerwa (yakakura zvakanyanya, huwandu hweash calcium powder hunoshandiswa muputty formula hunogona kuderedzwa zvakakodzera) uye mwero wekuchengetedza mvura wehydroxypropyl methylcellulose (HPMC), uye zvakare inodzokororwa...Verenga zvakawanda»
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Upfu hwelatex hunosanganiswazve hupfu hwakasimba huchena hunowanikwa ne spray-drying latex chaiyo. Hunonyanya kushandiswa sechinhu chakakosha che "dry-mixed mortar" nedzimwe dry-mixed mortars dzekugadzira zvinhu zvekugadzira zvekunze zvekudzivirira madziro. Teerera kune zvinotevera...Verenga zvakawanda»
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Hydroxypropyl methylcellulose inonyanya kushandiswa semusanganiswa mukugadzirwa kwepolyvinyl chloride, uye ndiyo inonyanya kushandiswa pakugadzira PVC ne suspension polymerization. Mukuvaka kweindasitiri yekuvaka, inonyanya kushandiswa mukuvaka nemashini senge madziro...Verenga zvakawanda»
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Zvimwe zvinowedzerwa zvakagadziriswa zvakaita sezvinhu zvinowedzerwa muhari zvakasanganiswa, cellulose ethers, zvinodzora kuungana kwemvura, upfu hwelatex hunonyungudika, zvinhu zvinopinza mhepo, zvinhu zvinosimbisa simba rekutanga, zvinoderedza mvura, nezvimwewo, zvinowedzerwa zvichienderana nezvinodiwa neprojekiti, zvinovandudza zvikuru mashandiro ezvinhu zvakasanganiswa ...Verenga zvakawanda»
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Kushandiswa kwehydroxypropyl methylcellulose (HPMC) mumortar yekuvaka plastering mortar: Kuchengetwa kwemvura yakawanda kunogona kuita kuti simende ive nemvura yakakwana, kuwedzera simba rebond zvakanyanya, uye panguva imwe chete, inogona kuwedzera simba rekudhonza uye kuchekwa kwesimbi, zvichikanganisa zvikuru...Verenga zvakawanda»
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(1) Kuongororwa kwekusimba kwebvudzi: Chigadzirwa chakaomeswa chinogadzirwa mumvura ine huremu hwe2°C, uye chinoyerwa neNDJ-1 rotational viscometer; (2) Chitarisiko chechigadzirwa chacho chakaita sehupfu, uye chigadzirwa chacho chinokurumidza kunyorwa ne “s”. Mashandisirwo ehydroxyp...Verenga zvakawanda»
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Nhamba ye viscosity yehydroxypropyl methylcellulose inhamba yakakosha zvikuru. Viscosity haimiriri kuchena. Viscosity ye cellulose HPMC inoenderana nemaitiro ekugadzira. Nzvimbo dzakasiyana dzekushandisa dzinofanira kusarudza cellulose HPMC ine viscosities dzakasiyana, kwete yakakwira viscosities...Verenga zvakawanda»
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Dhaka rakasanganiswa nemvura rinoreva zvinhu zvinosimbisa simende, zvinhu zvakasanganiswa zvakanaka, musanganiswa, mvura nezvimwe zvinhu zvakasiyana-siyana zvinosarudzwa zvichienderana nekushanda. Zvichienderana nechikamu chakati, mushure mekuyerwa nekusanganiswa panzvimbo yekusanganisa, rinotakurwa kuenda kunzvimbo yekushandisa nerori yekusanganisa. Chengeta...Verenga zvakawanda»
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Mhando dzezvinhu zvinoshandiswa pakugadzira dhaka rakasanganiswa nemvura, maitiro aro, mashandiro aro, uye simba razvo pakushanda kwezvigadzirwa zvedhaka rakasanganiswa nemvura. Kuvandudzwa kwezvinochengetedza mvura zvakaita se cellulose ether ne starch ether, zvinokwanisa kunyungudika...Verenga zvakawanda»