Hydroxypropyl methyl cellulose dị na simenti na gypsum

HPMC Hydroxypropyl methyl celluloseNa simenti na gypsum slurry, nke bụ isi ihe na-eme ka mmiri dịgide ma na-eme ka ọ sie ike, nwere ike ime ka nrapado na iguzogide sag nke slurry ka mma nke ọma.

Okpomọkụ ikuku, okpomọkụ na oke nrụgide ifufe nwere ike imetụta ọnụego mmiri na-amịpụta na simenti na ngwaahịa gypsum. Ya mere, n'oge dị iche iche, itinye hydroxypropyl methyl cellulose otu ụdị mmetụta mmiri na-ejide ngwaahịa ahụ nwere ụfọdụ ọdịiche. N'ihe owuwu simenti, enwere ike ịgbanwe mmetụta mmiri nke slurry site na ịbawanye ma ọ bụ ibelata ọnụọgụ HPMC. Nchekwa mmiri nke methyl cellulose ether na oke okpomọkụ bụ ihe ngosi dị mkpa iji mata àgwà nke methyl cellulose ether.

Ọ dị mma nke ukwuuhydroxypropyl methyl celluloseNgwaahịa usoro nwere ike idozi nsogbu nke idobe mmiri nke ọma n'okpuru oke okpomọkụ. N'oge okpomọkụ dị elu, karịsịa n'ebe ọkụ na akọrọ na nhazi oyi akwa dị gịrịgịrị n'akụkụ anwụ na-acha, mkpa ọ dị maka HPMC dị elu iji melite idobe mmiri nke slurry; hydroxypropyl methyl cellulose (HPMC), ịdị n'otu dị mma nke ukwuu, ọ bụ otu oxygen na oxygen hydroxypropyl nke kesara n'otu aka ahụ n'akụkụ yinye cellulose, nwere ike ime ka hydroxyl na ether oxygen na mmiri dịkwuo mma n'ụdị njikọ hydrogen, mee ka mmiri dị n'efu, ka o wee nwee ike ijikwa ihu igwe ọkụ nke mmiri na-eme ka ọ ghara ịpụ apụ, nweta njide mmiri dị elu.

Ọkwa dị elu nke hydroxypropyl methyl cellulose nwere ike ịgbasa n'otu ụzọ ahụ na nke ọma na ngwaahịa simenti na plasta, ma tinye ihe niile siri ike n'ime ya, wee mepụta oyi akwa nke ihe nkiri mmiri mmiri, mmiri dị n'okpuru ya ga-ewepụta nwayọ nwayọ, yana mmeghachi omume mmiri nke ihe simenti na-adịghị mma, iji hụ na njikọ ahụ siri ike na ike nrụgide nke ihe.

N'ime owuwu ahụ, iji nweta mmetụta nke nchekwa mmiri, ịkwesịrị ịgbakwunye àgwà dị eluHPMCNgwaahịa dịka usoro si dị, ma ọ bụghị ya, a ga-enwe nkụ ngwa ngwa nke na-akpata enweghị mmiri zuru oke, mbelata ike, mgbawa, drum oghere na nsogbu mma nke ịwụfu, kamakwa ọ na-eme ka ihe isi ike nke ndị ọrụ dịkwuo elu. Ka okpomọkụ na-ebelata, enwere ike ibelata ọnụọgụ mmiri HPMC nwayọ nwayọ, enwere ike nweta otu mmetụta njide mmiri ahụ.