Iindaba

I-Hydroxypropyl methylcellulose – i-masonry mortar Yomeleza ukunamathela kumphezulu we-masonry, kwaye yonyusa ukugcinwa kwamanzi, ukuze amandla e-masonry aphuculwe. Ukuthamba okuphuculweyo kunye ne-plasticity ukuze kuphuculwe iipropati zokusetyenziswa, ukusetyenziswa okulula konga ixesha kwaye kuphucule...Funda ngokugqithisileyo»

I-Cellulose hydroxypropyl methyl ether yenziwe nge-cotton cellulose ecocekileyo kakhulu ngokusebenzisa i-etherification ekhethekileyo phantsi kweemeko ze-alkaline. Isiphumo: 1. Ishishini lokwakha: Njengearhente yokugcina amanzi kunye ne-retarder yesamente mortar, ingenza i-mortar ikwazi ukupompa. Kwi-plaster, gypsum, putty powder okanye...Funda ngokugqithisileyo»

1. Ubushushu bejeli (isisombululo se-0.2%) 50-90°C. 2. Iyanyibilika emanzini nakwindawo eninzi ye-polar c kunye nenani elifanelekileyo le-ethanol/amanzi, i-propanol/amanzi, i-dichloroethane, njl.njl., ayinyibiliki kwi-ether, i-acetone, i-ethanol epheleleyo, kwaye idumbe ibe yisisombululo se-colloidal esicacileyo okanye esinamafu kancinci emanzini abandayo. Amanzi ...Funda ngokugqithisileyo»

I-MC yi-methyl cellulose, eyenziwe nge-cellulose ether ngokunyanga umqhaphu ocoliweyo nge-alkali, kusetyenziswa i-methane chloride njenge-etherification agent, kwaye idlula kuthotho lweempendulo. Ngokubanzi, inqanaba lokutshintshwa yi-1.6~2.0, kwaye ukunyibilika nako kwahlukile ngeedigri ezahlukeneyo...Funda ngokugqithisileyo»

I-hydroxypropyl methylcellulose yeklasi yekhemikhali yemihla ngemihla yipolymer eyenziweyo eyenziwe ngee-linters zekotoni ze-cellulose zendalo ngokuguqulwa kwe-etherification. I-Cellulose ether sisiphumo se-cellulose yendalo. Ukuveliswa kwe-cellulose ether kwahlukile kwii-polymers zokwenziwa. Eyona nto isisiseko...Funda ngokugqithisileyo»

Ukongeza i-hydroxypropyl methylcellulose ukwenza i-putty powder, i-viscosity yayo ayilula ukuba ibe nkulu kakhulu, inkulu kakhulu iya kubangela ukuba ingasebenzi kakuhle, ngoko ke ingakanani i-viscosity efunekayo kwi-putty powder? Masiyihlalutye ukuze wonke umntu ayiqonde. Kungcono ukongeza i-hydroxypropyl methylc...Funda ngokugqithisileyo»

Kwi-samente mortar kunye ne-gypsum-based slurry, i-hydroxypropyl methylcellulose idlala indima yokugcina amanzi kunye nokuqina, kwaye inokuphucula ngempumelelo ukunamathela kunye nokumelana nokuwa kwe-slurry. Izinto ezifana nobushushu bomoya, ubushushu kunye nesantya soxinzelelo lomoya ziya kuchaphazela i-volatili...Funda ngokugqithisileyo»

1. Iingxaki eziqhelekileyo kwi-putty powder Ukomisa ngokukhawuleza: Oku kungenxa yobungakanani be-lime calcium powder eyongeziweyo (inkulu kakhulu, ubungakanani be-lime calcium powder esetyenzisiweyo kwi-putty formula bunokunciphisa ngokufanelekileyo) bunxulumene nesantya sokugcina amanzi kwi-fiber, kwaye bunxulumene no...Funda ngokugqithisileyo»

ukoma ngokukhawuleza Oku kungenxa yokongezwa kakhulu komgubo we-calcium womlotha (ubungakanani bomgubo we-calcium womlotha osetyenziswa kwifomula ye-putty bunokunciphisa ngokufanelekileyo) kunxulumene nesantya sokugcina amanzi se-hydroxypropyl methylcellulose, kwaye kunxulumene nokoma kodonga. Ukuxobula...Funda ngokugqithisileyo»

I-Hydroxypropyl methylcellulose yi-non-ionic cellulose ether ecutshungulwa kwikotoni ecociweyo ngokusebenzisa uthotho lweempendulo zeekhemikhali. Yinto emhlophe engumphunga engenavumba, engenatyhefu enyibilika emanzini kwaye iveza isisombululo se-colloidal esicacileyo okanye esinamafu kancinci. Ineempawu ze-t...Funda ngokugqithisileyo»

Igama lesiTshayina le-HPMC yi-hydroxypropyl methylcellulose. Ayisiyo-ionic kwaye idla ngokusetyenziswa njenge-arhente yokugcina amanzi kwi-mortar exutywe nomileyo. Yeyona nto isetyenziswa kakhulu yokugcina amanzi kwi-mortar. Imveliso ye-ether esekelwe kwi-polysaccharide eyenziwe yi-alkalization kunye ne-etherification. Ayina...Funda ngokugqithisileyo»

1. Iingxaki eziqhelekileyo kwi-putty powder eyomileyo ngokukhawuleza Oku kunxulumene kakhulu nobungakanani bomgubo we-calcium womlotha ongezelelweyo (ubukhulu kakhulu, ubungakanani bomgubo we-calcium womlotha osetyenzisiweyo kwifomula ye-putty bunokunciphisa ngokufanelekileyo) kunye nezinga lokugcina amanzi le-hydroxypropyl methylcellulose (HPMC), kwaye ikwaphinda...Funda ngokugqithisileyo»