A na-ejikarị starch ether eme ihe na ngwa agha, nke nwere ike imetụta nkwụsị nke ngwa agha dabere na gypsum, ciment na lime, ma gbanwee ihe owuwu na sag resistance nke ngwa agha.A na-ejikarị ethers starch eme ihe na njikọ cellulose ethers na-adịghị agbanwe agbanwe na emezigharị.Ọ dabara maka ma na-anọpụ iche na alkaline usoro, na dakọtara na ọtụtụ ihe mgbakwunye na gypsum na ciment ngwaahịa (dị ka surfactants, MC, starch na polyvinyl acetate na ndị ọzọ mmiri-soluble polymers).
Isi atụmatụ:
(1) A na-ejikarị starch ether eme ihe na methyl cellulose ether, nke na-egosi mmetụta synergistic dị mma n'etiti abụọ ahụ.Ịgbakwunye ether starch kwesịrị ekwesị na methyl cellulose ether nwere ike imeziwanye nkwụsị nke sag na nkwụsị nke ngwa agha, na-enwe uru dị elu.
(2) Ịtinye ihe kwesịrị ekwesị nke starch ether na ngwa agha nwere methyl cellulose ether nwere ike ime ka ngwa ngwa na-agbanwe agbanwe nke ukwuu ma mee ka mmiri dịkwuo mma, na-eme ka ihe owuwu ahụ dịkwuo nro na nchacha ahụ dị nro.
(3) Ịtinye ihe kwesịrị ekwesị nke starch ether na ngwa agha nwere methyl cellulose ether nwere ike ime ka njigide mmiri nke ngwa agha ahụ dịkwuo ogologo ma gbatịa oge oghere.
(4) Starch ether bụ starch ether soluble nke kemịkal na mmiri, dakọtara na mgbakwunye ndị ọzọ na ntụ ntụ ntụ akọrọ, nke a na-ejikarị na tile adhesives, nrụzi ngwa agha, plasta plasta, ime na mputa mgbidi putty, gypsum dabeere agbakwunyere nkwonkwo na ndochi ihe. , interface mmadụ, masonry ngwa agha.
Ihe e ji mara starch ether na-adabere na: (a) imeziwanye nguzogide sag;(b) imeziwanye ikike ịrụ ọrụ;(c) imeziwanye ogo njide mmiri nke ngwa agha.
Oke ojiji:
Starch ether dabara maka ụdị niile (ciment, gypsum, lime-calcium) ime na mpụta mgbidi putty, na ụdị niile nke na-eche ihu ngwa agha na plasta ngwa agha.
Enwere ike iji ya dị ka ihe mgbakwunye maka ngwaahịa simenti, ngwaahịa gypsum na ngwaahịa lime-calcium.Starch ether nwere ezigbo ndakọrịta na ihe ndị ọzọ na-ewu na admixtures;ọ dị mma karịsịa maka ihe nrụpụta akọrọ akọrọ dị ka ngwa agha, adhesives, plasta na ihe ntụgharị.Starch ethers na methyl cellulose ethers (Tylose MC grades) na-eji ọnụ na-ewu akọrọ mixes inye elu ndim, ike Ọdịdị, sag iguzogide na mfe njikwa.Enwere ike ibelata viscosity nke ngwa agha, nrapado, plasta na akwụkwọ mpịakọta nwere ethers methyl cellulose dị elu site na mgbakwunye nke starch ethers.
Oge nzipu: Jun-13-2023