Hydroxyethyl Cellulose (HEC) bụ polima na-agbaze mmiri nke na-abụghị ionic nke a na-ejikarị eme ihe n'ihe mkpuchi, ihe ịchọ mma, ọgwụ, nri, ime akwụkwọ, igwu mmanụ na ngalaba ụlọ ọrụ ndị ọzọ. Ọ bụ ihe mejupụtara cellulose ether nke a na-enweta site na etherification nke cellulose, nke hydroxyethyl na-anọchi akụkụ nke otu hydroxyl nke cellulose. Njirimara anụ ahụ na kemịkalụ nke hydroxyethyl cellulose na-eme ka ọ bụrụ otu n'ime ihe dị mkpa nke ihe ndị na-eme ka ihe sie ike, ihe ndị na-eme ka ihe dị nro, ihe ndị na-eme ka ihe dị nro na ihe ndị na-eme ka ihe sie ike.
Isi mmiri nke hydroxyethyl cellulose
Hydroxyethyl cellulose bụ polima molekul dị elu nke nwere nnukwu ibu molekul, ebe isi mmiri ya kpọmkwem adịghịkwa mfe ịchọpụta dịka nke obere ihe ndị dị na molekul. N'ọrụ bara uru, ihe ndị dị na molekul dị elu dị ka hydroxyethyl cellulose enweghị ebe isi mmiri doro anya. Ihe kpatara ya bụ na ihe ndị dị otú ahụ ga-ere ere n'oge a na-ekpo ọkụ, kama ịgbanwe ozugbo site na mmiri mmiri gaa na gas site na mgbanwe usoro dị ka obere ihe ndị dị na molekul nkịtị. Ya mere, echiche nke "ebe isi mmiri" nke hydroxyethyl cellulose adịghị mma.
N'ozuzu, mgbe a na-ekpo ọkụ hydroxyethyl cellulose na okpomọkụ dị elu, ọ ga-ebu ụzọ gbazee na mmiri ma ọ bụ ihe mgbaze organic iji mepụta mmiri colloidal, wee na okpomọkụ dị elu, agbụ polymer ga-amalite ịgbawa ma mechaa gbawaa na okpomọkụ, na-ewepụta obere molekul dị ka mmiri, carbon dioxide na ihe ndị ọzọ na-agbanwe agbanwe na-enweghị usoro esi mmiri nkịtị. Ya mere, hydroxyethyl cellulose enweghị ebe esi mmiri doro anya, kama ọ bụ okpomọkụ ire ere, nke na-agbanwe site na ibu molekul ya na ọkwa nnọchi ya. N'ikwu ya n'ozuzu, okpomọkụ ire ere okpomọkụ nke hydroxyethyl cellulose na-adịkarị karịa 200°C.
Nkwụsi ike okpomọkụ nke hydroxyethyl cellulose
Hydroxyethyl cellulose nwere ezigbo nkwụsi ike kemịkalụ n'ọnọdụ okpomọkụ ụlọ, ọ nwere ike iguzogide ụfọdụ gburugburu acid na alkali, ma nwee ụfọdụ iguzogide okpomọkụ. Agbanyeghị, mgbe okpomọkụ dị oke elu, ọkachasị na enweghị ihe mgbaze ma ọ bụ ihe ndị ọzọ na-eme ka ihe sie ike, agbụ polymer ga-amalite ịgbaji n'ihi ọrụ nke okpomọkụ. Usoro mmebi okpomọkụ a anaghị eso ya na mmiri ọkụ doro anya, kama ọ na-esochi mgbawa nke yinye na mmeghachi omume mmiri mmiri nwayọ nwayọ, na-ewepụta ihe ndị na-agbanwe agbanwe ma mechaa hapụ ngwaahịa ndị nwere carbon.
N'ọrụ ụlọ ọrụ mmepụta ihe, iji zere ire ere nke okpomọkụ dị elu na-akpata, hydroxyethyl cellulose anaghị ekpughere gburugburu ebe okpomọkụ ya gafere. Ọbụna n'oge okpomọkụ dị elu (dịka iji mmiri mmanụ ala na-egwupụta), a na-ejikarị hydroxyethyl cellulose eme ihe na ihe ndị ọzọ iji mee ka ọ kwụsie ike na okpomọkụ.
Iji hydroxyethyl cellulose eme ihe
Ọ bụ ezie na hydroxyethyl cellulose enweghị ebe mmiri na-agbaze nke ọma, mana ọ na-agbaze ma na-eme ka ọ sie ike na-eme ka e jiri ya mee ihe n'ọtụtụ ụlọ ọrụ. Dịka ọmụmaatụ:
Ụlọ ọrụ mkpuchi: Enwere ike iji hydroxyethyl cellulose dị ka ihe na-eme ka ihe dị arọ iji nyere aka gbanwee usoro mkpuchi ahụ, gbochie mmiri ozuzo ma melite ọkwa na nkwụsi ike nke mkpuchi ahụ.
Ihe ịchọ mma na kemịkalụ kwa ụbọchị: Ọ bụ ihe dị mkpa n'ọtụtụ ihe nhicha, ngwaahịa nlekọta akpụkpọ ahụ, shampoo na ihe nhicha ezé, nke nwere ike inye ngwaahịa ahụ ezigbo viscosity, mmiri mmiri na nkwụsi ike.
Ụlọ ọrụ ọgwụ: N'ihe gbasara nkwadebe ọgwụ, a na-ejikarị hydroxyethyl cellulose eme ihe n'imepụta mbadamba na ihe mkpuchi na-adịgide adịgide iji chịkwaa ọnụego mwepụta ọgwụ.
Ụlọ ọrụ nri: Dịka ihe na-eme ka ihe sie ike, ihe na-eme ka ihe sie ike, na ihe na-eme ka ihe sie ike, a na-ejikwa hydroxyethyl cellulose eme ihe na nri, ọkachasị na ice cream, jelii na ihendori.
Ịgba mmanụ: N'ịkpọ mmanụ n'ime ebe a na-egwu mmanụ, hydroxyethyl cellulose bụ akụkụ dị mkpa nke mmiri ịgba mmanụ, nke nwere ike ime ka mmiri ahụ dịkwuo mma, mee ka mgbidi olulu mmiri ahụ sie ike ma belata mfu apịtị.
Dịka ihe e ji eme polima, hydroxyethyl cellulose enweghị ebe a na-esi mmiri nke ọma n'ihi na ọ na-agbaze n'okpomọkụ dị elu kama ọ na-agba mmiri nke ọma. Okpomọkụ nke ire ere okpomọkụ ya na-adịkarị karịa 200°C, dabere na ibu molekul ya na ogo nnọchi ya. Agbanyeghị, a na-ejikarị hydroxyethyl cellulose eme ihe n'ọtụtụ ihe mkpuchi, ihe ịchọ mma, ọgwụ, nri na mmanụ ala n'ihi na ọ na-eme ka ọ sie ike, na-eme ka ọ dị nro, na-eme ka ọ dị nro, na-eme ka ọ na-eme ka ọ kwụsie ike. N'ọrụ ndị a, a na-ezere ya ka ọ ghara ịnọ n'okpomọkụ dị oke elu iji hụ na ọ na-arụ ọrụ ma kwụsie ike.
Oge ozi: Ọktoba-23-2024