HEC (Hydroxyethylcellulose) bụ polymer a na-ejikarị mmiri eme ihe na-eji ngwa dị iche iche na-emepụta ihe na ụlọ ọrụ mmepụta ihe na ndị na-azụ ahịa, karịsịa na mkpuchi, ihe ịchọ mma, ọgwụ na ụlọ ọrụ nri. Usoro hydration nke HEC na-ezo aka na usoro nke HEC ntụ ntụ na-amịkọrọ mmiri ma gbazee n'ime mmiri iji mepụta ngwọta otu.
Ihe ndị na-emetụta oge hydration nke HEC
A naghị edozi oge hydration nke HEC, ma ọtụtụ ihe na-emetụta ya. Dịka, oge hydration nke HEC na mmiri nwere ike ịdị iche site na nkeji ole na ole ruo awa ole na ole. Ihe ndị a bụ isi ihe na-emetụta oge hydration HEC:
Arọ molecular na ogo nke nnọchi HEC: Akara molekụla na ogo nke nnọchi HEC (ogo nke nnọchi na-ezo aka n'ogo nke otu hydroxyethyl na-edochi otu hydroxyl na molekul cellulose) ga-emetụta nke ukwuu ọnụego hydration ya. HEC nwere ibu molekụla buru ibu na-ewe ogologo oge iji hydrate, ebe HEC nwere ogo dị elu nke nnọchi anya na-enwe ike ịnweta mmiri dị mma na ngwa ngwa hydration ga-eme ka ọ dịkwuo elu.
Mmiri mmiri: Mmiri mmiri bụ otu n'ime isi ihe na-emetụta oge hydration HEC. N'ikwu okwu n'ozuzu, mmiri dị elu nwere ike ime ka usoro hydration nke HEC dị ngwa ngwa. Dịka ọmụmaatụ, na mmiri ọkụ, HEC hydrates ngwa ngwa karịa na mmiri oyi. Otú ọ dị, okpomọkụ nke mmiri dị elu nwere ike ime ka HEC gbazee n'ụzọ na-ezighị ezi ma mee ka ọkpụkpụ, ya mere, a na-atụkarị aro ka ịchịkwa okpomọkụ dị n'etiti 20 ° C na 40 ° C.
Na-agba ọsọ ọsọ na usoro: Ịgba ume bụ ụzọ dị mkpa iji kwalite hydration HEC. Ngwa ngwa na-akpalite ọsọ, nkenke oge hydration nke HEC na-abụkarị. Agbanyeghị, imebiga ihe ókè nwere ike iwebata ọtụtụ afụ, na-emetụta ogo nke ngwọta. A na-atụ aro ka ịgbakwunye ntụ ntụ HEC nke nta nke nta na obere ọsọ na-akpali akpali iji zere ịmepụta agglomerates na iji nọgide na-akpali akpali n'oge usoro hydration.
Uru pH nke ngwọta: HEC na-enwe mmetụta dị nro na uru pH ma na-arụ ọrụ kacha mma na ebe na-anọpụ iche ma ọ bụ ntakịrị acidic. N'okpuru ọnọdụ pH siri ike (dịka acids siri ike ma ọ bụ ntọala), enwere ike imetụta solubility nke HEC, si otú ahụ na-agbatị oge hydration. Ya mere, a na-atụ aro ka ịme hydration nke HEC na gburugburu pH na-anọghị nso.
Usoro ọgwụgwọ nke HEC: Usoro ọgwụgwọ dị ka ihicha, ichikota, wdg ga-emetụtakwa arụmọrụ hydration nke HEC. HEC ntụ ntụ edozi nke ọma na-agbaze na hydrates ngwa ngwa. Dịka ọmụmaatụ, tupu ịgbasa ntụ ntụ HEC na ethanol ma ọ bụ glycerin tupu ịtinye ya na mmiri nwere ike belata oge hydration nke ukwuu.
Ajuju a na-ajụkarị n'oge usoro hydration HEC
N'oge usoro hydration nke HEC, ị nwere ike izute ụfọdụ nsogbu ndị a na-ahụkarị, nke na-emetụtakarị usoro ọrụ ma ọ bụ ọnọdụ gburugburu ebe obibi:
Agglomeration: N'okpuru ọnọdụ arụ ọrụ na-ekwesịghị ekwesị, HEC ntụ ntụ nwere ike ịmepụta agglomerations na mmiri. Nke a na-abụkarị n'ihi na mgbe HEC ntụ ntụ na-abanye na mmiri, oyi akwa dị n'èzí na-amịkọrọ mmiri ozugbo ma zaa, na-egbochi oyi akwa dị n'ime ịkpọtụrụ mmiri ahụ, si otú a na-eme ka ọkpụkpụ. Ọnọdụ a na-agbatịkwu oge hydration nke ukwuu ma na-eduga na inhomogeneity ngwọta. Iji zere nke a, a na-atụkarị aro ka iji nwayọọ nwayọọ fesa na ntụ ntụ HEC mgbe ị na-akpali.
Nsogbu afụ: N'okpuru ike dị elu ma ọ bụ mkpali ngwa ngwa, ngwọta HEC na-adịkarị mfe iwebata ọnụ ọgụgụ buru ibu. Afụ ikuku ndị a nwere ike imetụta ịdị mma nke ngwọta ikpeazụ, karịsịa mgbe a na-eji agba ma ọ bụ ihe ịchọ mma. Ya mere, a ga-ezere mkpali siri ike n'oge usoro hydration, na nhazi nke afụ nwere ike ibelata site n'ịgbakwunye defoamers.
Ngwọta viscosity mgbanwe: viscosity nke ngwọta HEC ji nwayọọ nwayọọ na-abawanye ka usoro hydration na-aga n'ihu. N'ime ngwa ụfọdụ, dị ka nhazi nke mkpuchi ma ọ bụ nrapado, njikwa viscosity dị oke mkpa. Ọ bụrụ na oge hydration dị ogologo, viscosity nwere ike ịdị elu, na-emetụta arụmọrụ. Ya mere, njikwa ziri ezi nke oge hydration dị mkpa iji nweta viscosity ngwọta achọrọ.
HEC hydration na ngwa bara uru
N'ime ngwa ndị bara uru, usoro hydration nke HEC na-achọkarị ka ọ dị mma na njikọ na usoro mmepụta ihe kpọmkwem na ihe ngwaahịa chọrọ. Dịka ọmụmaatụ, na nhazi ihe ịchọ mma, iji nweta nhazi na nkwụsi ike a chọrọ, a na-agbazekarị HEC na mmiri ọkụ na mgbe ahụ, a na-eji nwayọọ nwayọọ tinye ihe ndị ọzọ. Na mkpuchi ụlọ, ọ nwere ike ịdị mkpa iji dozie ọsọ na-akpali akpali na mmiri okpomọkụ iji mee ka usoro hydration nke HEC dị ngwa, si otú a na-eme ka mmepụta mmepụta ihe dịkwuo mma.
Oge hydration nke HEC bụ usoro dị ike ma na-emetụta ya nke ukwuu site na ọtụtụ ihe. N'ọnọdụ dị iche iche ngwa ngwa, ọ dị mkpa ka a gbanwee na kachasị mma dịka ọnọdụ dị iche iche si dị iji hụ na HEC nwere ike ịmịnye ngwa ngwa na nke ọma ma mepụta ngwọta siri ike. Nke a ọ bụghị nanị na-enyere aka melite mmepụta mmepụta ihe kamakwa na-eme ka ọ dị mma na arụmọrụ nke ngwaahịa ikpeazụ.
Oge nzipu: Ọgọst-23-2024