Kedu ihe bụ Starch Ether?

Starch ethera na-ejikarị eme ihe na ngwa agha ihe owuwu, nke nwere ike imetụta nkwụsị nke ngwa agha dabere na gypsum, ciment na lime, ma gbanwee ihe owuwu na sag na-eguzogide ngwa agha. A na-ejikarị ethers starch eme ihe na njikọ cellulose ethers na-adịghị agbanwe agbanwe na emezigharị. Ọ dabara maka sistemụ nnọpụiche na alkaline, yana dakọtara na ọtụtụ ihe mgbakwunye na ngwaahịa gypsum na ciment (dịka surfactants, MC, starch na polymers soluble mmiri dị ka polyvinyl acetate).

Isi ọrụ

(1) Ikike ịgbara ngwa ngwa dị mma: viscosity ọkara, njigide mmiri dị elu;

(2) Usoro ọgwụgwọ ahụ dị ntakịrị, na obere usoro ọgwụgwọ nwere ike inwe mmetụta dị mma;

(3) Meziwanye ikike mgbochi sag nke ihe n'onwe ya;

(4) Ọ nwere ezigbo mmanu mmanu, nke nwere ike imeziwanye arụmọrụ ọrụ nke ihe ahụ ma mee ka ọrụ ahụ dị nro.

Main atụmatụ

Njirimara nke starch ether na-adabere na:

(a) Melite nguzogide sag;

(b) Melite ikike nrụpụta;

(c) Melite ọnụego njide mmiri nke ngwa agha.

Mmekọrịta

A na-ejikarị ether starch eme ihe na methyl cellulose ether, nke na-egosi mmetụta dị mma n'etiti abụọ ahụ. Ịtinye ether starch kwesịrị ekwesị na methyl cellulose ether nwere ike imeziwanye nguzogide sag na nkwụsị nke ngwa agha ahụ. Ọnụ ahịa mkpụrụ dị elu.

N'ime ngwa agha ahụ nwere methyl cellulose ether, ịgbakwụnye ether starch kwesịrị ekwesị nwere ike ime ka ngwa ngwa ahụ dịkwuo mma ma mee ka mmiri dị mma dịkwuo mma, na-eme ka ihe owuwu ahụ dịkwuo nro ma na-ekpochasị ihe dị nro.

N'ime ngwa agha nwere methyl cellulose ether, ịgbakwụnye ihe kwesịrị ekwesị nke starch ether nwere ike ime ka njigide mmiri nke ngwa agha ahụ dịkwuo ogologo ma gbatịa oge.

Starch ether bụ starch ether soluble nke kemịkal na mmiri, dakọtara na mgbakwunye ndị ọzọ na ngwa ngwa ntụ ntụ, nke a na-ejikarị eme ihe na tile adhesives, nrụzi ngwa agha, plasta plasta, ime na mputa mgbidi putty, gypsum dabeere caulking na ndochi ihe, interface ihe, ngwa agha masonry.

Starch ether dabara maka ụdị niile (ciment, gypsum, lime calcium dabeere) ime na mputa mgbidi putty, na ụdị dị iche iche na-eche ihu ngwa agha 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 maka iwu ihe ngwakọta akọrọ dị ka ngwa agha, adhesives, plasta na ihe ntụgharị. Starch ether na methyl cellulose ether (KimaCellMC grade) 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.