Ole tulaga lautele ole pH ole oloa ole gypsum ole acidic pe le tutusa. O le taimi nei e lua ituaiga o fausaga faufalehydroxypropyl methylcellulosei luga o le maketi: faʻagesegese-faʻamavae cellulose ma cellulose vave (S). E le talafeagai le cellulose vave mo faiga gypsum. O oloa, o le solubility e matua leaga lava i lalo ole acidic poʻo le le mautonu tulaga, ma faʻagesegese-dissolving hydroxypropyl methylcellulose e mafai ona faʻamavaeina i oloa gypsum, ae faʻagesegese-dissolving cellulose o loʻo i ai se tulaga le lelei tele, e faigofie ona agglomerate (pe a gypsum A maeʻa ona faʻavevesi le paluga i luga o le puipui i luga o le puipui mo sina taimi puʻupuʻu, ma sina taimi puupuu). I le taimi nei, i oloa gypsum, aemaise lava i masini gypsum mortar, e manaʻomia le cellulose ether e mafai ona faʻasalalau atoa ma faʻamavae i se taimi puupuu, lea e manaʻomia ai le faia o suʻesuʻega loloto i luga o le faʻagasologa o le gaosiga o le cellulose eter. Togafitiga i luga (e le o le mea e taʻua o le faʻaopoopoga o isi mea faʻapipiʻi i le cellulose ether masani masani), ina ia faʻafetaui i le gypsum mortar system. Hydroxypropyl methylcellulose eter fa'atasi ai ma togafitiga loloto i luga e mafai ona i ai le taimi fa'amavae mautu ma mea fa'ainisinia lelei i le sima gypsum, ma e mafai ona fa'aleleia atili le fa'avasegaina ma le fa'aumaina o le sima.
E masani ona faʻaaogaina e le masini gypsum mortar e masani ona faʻaaogaina le hydroxypropyl methylcellulose eter i le va o le 20,000 ma le 75,000, ma o le aofaʻi faaopoopo e masani lava 0.2% i le 0.4%. Ole taimi fa'atulagaina ole masini gypsum mortar e fa'atonutonu ile 1 itula. Matou te faʻaogaina le faʻamaʻiina o le gypsum mortar, viscosity palasitika, thixotropy, rheology ma le tutusa o le slurry e faʻamasino ai le faʻatinoga o oloa gypsum mortar.
Matou te mafaufau i le lelei o le pulea o le desulfurization gypsum source calcining process, fillers (sima, fine aggregate, mamafa calcium pauta) ma admixtures (e mafai ona faʻaaogaina i le faʻasalalau latex paʻu, hydroxypropyl methyl cellulose ether, faʻalauteleina perlite, gypsum retarder) O le filifiliga o le fua faʻatatau o oloa tau-lelei.
Hydroxypropyl methyl cellulose eteraua o le gypsum mortar e maualuga le mama ma lelei le galue, ma ua viia lautele e tagata faʻatau gypsum mortar.
Taimi meli: Apr-25-2024