Hydroxyethyl Cellulose (HEC) bụ polymer na-abụghị ionic mmiri soluble nke a na-ejikarị eme ihe na mkpuchi, ihe ịchọ mma, ọgwụ, nri, imepụta akwụkwọ, mkpọ mmanụ na mpaghara ụlọ ọrụ ndị ọzọ. Ọ bụ ihe ether cellulose nwetara site na etherification nke cellulose, nke hydroxyethyl na-anọchi akụkụ nke hydroxyl otu cellulose. Njirimara anụ ahụ na nke kemịkalụ nke hydroxyethyl cellulose na-eme ka ọ bụrụ otu n'ime ihe ndị dị mkpa nke ndị na-ekpo ọkụ, ndị na-ahụ maka gelling, emulsifiers na stabilizers.
Ebe na-esi ísì ụtọ nke hydroxyethyl cellulose
Hydroxyethyl cellulose bụ polymer molekụla dị elu nke nwere nnukwu ibu molekụla, na ebe isi ya kpọmkwem adịghị mfe ịchọpụta dị ka nke obere ogige molekụla. N'ime ngwa bara uru, ihe ndị dị elu dị ka hydroxyethyl cellulose enweghị isi ihe na-esi ísì ụtọ. Ihe kpatara ya bụ na ihe ndị dị otú ahụ ga-erepịa n'oge okpomọkụ, kama ịgbanwe ozugbo site na mmiri mmiri gaa gas site na mgbanwe oge dị ka obere ihe ndị nkịtị. Ya mere, echiche nke "ebe esi mmiri" nke hydroxyethyl cellulose adịghị adabara.
N'ozuzu, mgbe hydroxyethyl cellulose na-ekpo ọkụ na okpomọkụ dị elu, ọ ga-ebu ụzọ gbazee na mmiri ma ọ bụ ihe mgbaze organic iji mepụta ngwọta colloidal, mgbe ahụ na okpomọkụ dị elu, ụdọ polymer ga-amalite ịgbaji ma mechaa decompose na-ekpo ọkụ, na-ahapụ obere ụmụ irighiri mmiri dị ka mmiri, carbon dioxide na ihe ndị ọzọ na-agbanwe agbanwe na-enweghị usoro isi esi. Ya mere, hydroxyethyl cellulose enweghị ihe doro anya na-esi esi, ma a decomposition okpomọkụ, nke dị iche iche ya molekụla arọ na ogo nke nnọchi. N'ikwu okwu n'ozuzu, okpomọkụ ire ere nke hydroxyethyl cellulose na-adịkarị karịa 200 Celsius.
Nkwụsi ike nke okpomọkụ nke hydroxyethyl cellulose
Hydroxyethyl cellulose nwere ezigbo nkwụsi ike kemịkalụ na ụlọ okpomọkụ, nwere ike iguzogide ụfọdụ acid na gburugburu alkali, ma nwee ụfọdụ nguzogide okpomọkụ. Otú ọ dị, mgbe okpomọkụ dị oke elu, karịsịa na enweghị ihe mgbaze ma ọ bụ ihe ndị ọzọ na-edozi ahụ, ụdọ polymer ga-amalite imebi n'ihi omume nke okpomọkụ. Usoro ire ere ọkụ a anaghị eso ya na esi doro anya, kama ọ bụ mgbaji yinye nke nta nke nta na mmeghachi ahụ nke akpịrị ịkpọ nkụ, na-ahapụ ihe ndị na-agbanwe agbanwe ma mesịa hapụ ngwaahịa carbonized.
N'ime ngwa ụlọ ọrụ mmepụta ihe, iji zere ire ere nke okpomọkụ dị elu kpatara, hydroxyethyl cellulose anaghị ekpughere ya na gburugburu ebe obibi karịrị okpomọkụ nke ire ere. Ọbụlagodi na ngwa okpomọkụ dị elu (dị ka iji mmiri mmiri na-egwupụta mmanụ), hydroxyethyl cellulose na-ejikarị ya na ihe ndị ọzọ na-eme ka ọ kwụsie ike.
Ngwa nke hydroxyethyl cellulose
Ọ bụ ezie na hydroxyethyl cellulose enweghị isi ihe na-esi ísì ụtọ, ihe na-edozi ya na ihe na-eme ka ọ dị arọ na-eme ka a na-ejikarị ya eme ihe n'ọtụtụ ụlọ ọrụ. Ọmụmaatụ:
Ụlọ ọrụ mkpuchi: hydroxyethyl cellulose nwere ike iji mee ihe dị ka onye na-agba ume iji nyere aka dozie rheology nke mkpuchi ahụ, gbochie mmiri ozuzo ma melite ọkwa na nkwụsi ike nke mkpuchi.
Ihe ịchọ mma na kemịkalụ kwa ụbọchị: Ọ bụ ihe dị mkpa n'ọtụtụ ncha, ngwaahịa nlekọta anụ ahụ, shampoos na ncha eze, nke nwere ike inye ngwaahịa ahụ viscosity ziri ezi, moisturizing na nkwụsi ike.
Ụlọ ọrụ na-emepụta ọgwụ: N'ime nkwadebe ọgwụ, a na-ejikarị hydroxyethyl cellulose na-emepụta mbadamba ihe na-adịgide adịgide na mkpuchi iji chịkwaa ntọhapụ nke ọgwụ.
Ụlọ ọrụ nri: Dị ka onye na-agba agba, stabilizer na emulsifier, a na-ejikwa hydroxyethyl cellulose na nri, karịsịa na ice cream, jelii na sauces.
Ngwunye mmanụ: N'ebe a na-egwupụta mmanụ, hydroxyethyl cellulose bụ ihe dị mkpa na-emepụta mmiri mmiri, nke nwere ike ime ka viscosity nke mmiri mmiri dịkwuo elu, mee ka mgbidi olulu mmiri guzosie ike ma belata mfu apịtị.
Dị ka ihe polymer, hydroxyethyl cellulose enweghị isi ihe na-esi ísì ụtọ n'ihi na ọ na-erekasị na okpomọkụ dị elu kama ịbụ ihe na-esi ísì ụtọ. Okpomọkụ ire ere ya na-adịkarị n'elu 200 Celsius, dabere na ịdị arọ ya na ogo nke nnọchi ya. Ka o sina dị, a na-eji hydroxyethyl cellulose eme ihe n'ọtụtụ ebe na mkpuchi, ihe ịchọ mma, ọgwụ, nri na mmanụ ala n'ihi njiri mara mma, gelling, emulsifying na stabilizing properties. N'ime ngwa ndị a, a na-ezere ya ka ọ ghara ikpughe ya na oke okpomọkụ dị elu iji hụ na arụmọrụ ya na nkwụsi ike ya.
Oge nzipu: Ọkt-23-2024