Ọrụ nke hydroxypropyl starch ether na ngwa agha

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Okwu Mmalite na Starch Ether

Starch ndị a na-ahụkarị na nke a na-ejikarị eme ihe bụ starch nduku, starch tapioca, starch ọka, ọka wit, na ọka ọka ọka nwere abụba na protein dị elu. Mgbọrọgwụ starch dị ka nduku na tapioca starch dị ọcha karịa.

Starch bụ polysaccharide macromolecular mejupụtara nke glucose. Enwere ụdị molekul abụọ, linear na alaka, nke a na-akpọ amylose (ọdịnaya 20%) na amylopectin (ọdịnaya dịka 80%). Iji meziwanye ihe eji eji starch eme ihe n'ime ihe owuwu ụlọ, enwere ike gbanwee ya site na usoro anụ ahụ na nke kemịkal iji mee ka ihe onwunwe ya dịkwuo mma maka mkpa nke ihe owuwu ụlọ maka ebumnuche dị iche iche. Hydroxypropyl starch ether

Ọrụ nke starch ether na ngwa agha

Maka ihe na-eme ugbu a na-abawanye ebe tile, ịgbakwụnye starch ether nwere ike imeziwanye nkwụghachi nke nrapado taịlị.

ogologo oge mmeghe

Maka adhesives tile, ọ nwere ike imezu ihe achọrọ nke ihe mkpuchi tile pụrụ iche (Klas E, 20min gbatịpụrụ ruo 30min iji ruo 0.5MPa) na-agbatị oge mmeghe.

Njirimara elu emelitere

Starch ether nwere ike ime ka elu nke gypsum base na ciment mortar dị nro, dị mfe itinye, ma nwee mmetụta ịchọ mma. Ọ bara uru nke ukwuu maka plasta ngwa agha na akwa oyi akwa ịchọ mma dị ka putty.

Usoro ọrụ nke starch ether

Mgbe ether starch gbazere n'ime mmiri, a ga-agbasasị ya n'otu n'otu na sistem simenti. Ebe ọ bụ na starch ether molecule nwere usoro netwọkụ ma na-ebubo ya n'ụzọ na-ezighị ezi, ọ ga-anakọta mkpụrụ osisi ciment nke ọma ma na-eje ozi dị ka àkwà mmiri ngbanwe iji jikọọ ciment ahụ, si otú a na-enye nnukwu uru mkpụrụ nke slurry nwere ike imeziwanye mgbochi sag ma ọ bụ mgbochi. amịpụta mmetụta.

Ihe dị iche n'etiti starch ether na cellulose ether

(1) Starch ether nwere ike imeziwanye ihe mgbochi sag na mgbochi nkwụsị nke ngwa agha, ebe cellulose ether na-enwekarị ike imeziwanye viscosity na njigide mmiri nke usoro ahụ ma ọ nweghị ike imeziwanye ihe mgbochi sag na mgbochi nkwụsị.

(2) thickening na viscosity

N'ozuzu, viscosity nke cellulose ether bụ ihe dị ka iri puku kwuru iri puku, mgbe viscosity nke starch ether bụ ọtụtụ narị na ọtụtụ puku, ma nke a apụtaghị na ndim ihe onwunwe nke starch ether ka ngwa agha adịghị mma dị ka nke cellulose ether. na ndim usoro nke abụọ dị iche.

(3) Tụnyere cellulose, starch ether nwere ike ịbawanye uru mkpụrụ mbụ nke nrapado taịlị, si otú a na-emeziwanye arụmọrụ mgbochi-slip.

(4) ikuku entrainment

Cellulose ether nwere ihe na-eme ka ikuku dị ike, ebe starch ether enweghị ihe na-eme ka ikuku dị.

(5) Usoro ihe omimi nke cellulose ether

Ọ bụ ezie na starch na cellulose bụ ihe mejupụtara molekul glucose, ụzọ ha si emepụta dị iche. A na-ahazi mkpụrụ ndụ glucose niile dị na starch n'otu ụzọ ahụ, ebe cellulose dị iche. N'akụkụ ọ bụla, nghazi nke ụmụ irighiri ihe glucose dị iche, yana ọdịiche nhazi a na-ekpebikwa ọdịiche dị na njirimara cellulose na starch.

Nkwubi okwu: Mgbe a na-eji cellulose ether na starch ether mee ihe, mmetụta synergistic dị mma nwere ike ime. Nnwale egosila na iji starch ether dochie 20% -30% nke cellulose ether na ngwa agha enweghị ike ibelata ikike njigide mmiri nke usoro ngwa agha, ma nwee ike imeziwanye ikike mgbochi sag na mgbochi.