Hydroxyethyl cellulose (HEC) bụ ihe a na-ejikarị nonionic, polymer soluble mmiri nke sitere na cellulose. Ngwa ya bụ isi na ngwaahịa kemịkalụ kwa ụbọchị sitere n'ikike o nwere imegharị rheology, dozie usoro, yana melite udidi ngwaahịa.
Ngwongwo na usoro nke HEC
A na-eji HEC mara ya site na nkwụsi ike, nkwụsịtụ, njide, na emulsifying Njirimara. Ọ na-egosipụta pseudoplasticity dị elu, nke pụtara viscosity ya na-ebelata n'okpuru nrụgide shiee mana ọ na-alaghachi na ọnọdụ mbụ ya ozugbo ewepụrụ nrụgide ahụ. Ngwongwo a bara uru n'ụdị dị iche iche ka ọ na-enye ohere ngwaahịa ka ọ dị oke ma kwụsie ike na shelf ma dị mfe itinye ma ọ bụ gbasaa mgbe ejiri ya.
Usoro dị n'azụ ịrụ ọrụ HEC dị na nhazi ihe omimi ya. Agbụ polymer na-etolite netwọk nke nwere ike ọnyà mmiri na ihe ndị ọzọ, na-emepụta matrix gel-like. Nhazi netwọk a na-adabere n'ogo nke nnọchi na ịdị arọ molekụla nke HEC, nke nwere ike gbanwee iji nweta viscosity na nkwụsi ike chọrọ na nhazi.
Mmetụta na viscosity
Mmetụta siri ike
HEC na-emetụta nke ọma viscosity nke ngwaahịa kemịkalụ kwa ụbọchị site n'ime ka usoro mmiri dị ukwuu. Na ngwaahịa nlekọta onwe onye dị ka shampoos na lotions, HEC na-eme ka viscosity dịkwuo elu, na-eduga n'ọdịdị ka mma na nghọta nke ndị ahịa. A na-enweta oke a site na hydration nke ihe ndị HEC, ebe mmiri mmiri na-emekọ ihe na ọkpụkpụ azụ cellulose, na-eme ka polymer zaa ma mepụta ngwọta viscous.
Ntinye uche nke HEC na nhazi ahụ dị oke mkpa maka imezu viscosity achọrọ. N'ebe dị ala, HEC na-ebuli viscosity nke usoro mmiri na-enweghị mmetụta nke ọma na-asọpụta. N'ebe dị elu dị elu, HEC na-emepụta ihe dị ka gel, na-enye viscosity kwụsiri ike na nke na-agbanwe agbanwe. Dịka ọmụmaatụ, na shampoos, nchịkọta HEC sitere na 0.2% ruo 0.5% nwere ike inye viscosity zuru oke maka ngwa dị nro, ebe enwere ike iji ihe dị elu mee ihe maka gels ma ọ bụ ude siri ike.
Àgwà na-akpachapụ anya shia
Ọdịdị pseudoplastic nke HEC na-enye ohere ngwaahịa kemịkalụ kwa ụbọchị iji gosipụta omume ịcha akwa. Nke a pụtara na n'okpuru usoro ọrụ nke ịwụsa, ịgbapụta ma ọ bụ ịgbasa, viscosity na-ebelata, na-eme ka ngwaahịa ahụ dị mfe ijikwa ma tinye ya n'ọrụ. Ozugbo e wepụrụ ike shear, viscosity na-alaghachi na ọnọdụ mbụ ya, na-eme ka ngwaahịa ahụ kwụsie ike n'ime akpa ahụ.
Dịka ọmụmaatụ, na ncha mmiri mmiri, HEC na-enyere aka nweta nguzozi n'etiti ngwaahịa kwụsiri ike, nke siri ike na karama na mmiri mmiri, ncha na-adị mfe ịgbasa mgbe a na-enye ya. Ngwongwo a bara uru karịsịa na nhazi ebe ịdị mfe nke ngwa dị oké mkpa, dị ka lotions na ntutu isi.
Mmetụta na Stability
Nkwusioru na emulsification
HEC na-eme ka nkwụsi ike nke ngwaahịa kemịkalụ kwa ụbọchị site n'ịrụ ọrụ dị ka onye na-akwụsịtụ na ihe nkwụsi ike. Ọ na-egbochi nkewa nke ihe siri ike na coalescence nke ụmụ irighiri mmiri na emulsions, si otú a na-edobe ngwaahịa dị n'otu oge. Nke a dị mkpa karịsịa n'ụdị nwere ihe ndị na-adịghị ike ime, pigmenti, ma ọ bụ ihe ndị kwụsịtụrụ.
Na lotions na creams, HEC stabilizes emulsions site n'ịbawanye viscosity nke na-aga n'ihu na-adọ, si otú mbenata agagharị nke agbasasị agbasa droplets na ahụ. Usoro nkwụsi ike a dị oke mkpa maka idowe nkwụsi ike na ịdị irè nke ngwaahịa ahụ n'oge ndụ ya niile. Dịka ọmụmaatụ, na ude mmiri na-ekpuchi anyanwụ, HEC na-enyere aka na-ekesa ihe nzacha UV n'otu n'otu, na-eme ka nchebe na-agbanwe agbanwe megide radieshon na-emerụ emerụ.
Njide mmiri na nhazi ihe nkiri
HEC na-enyekwa aka na nkwụsi ike nke usoro nhazi site na ịkwalite njigide mmiri na ịmepụta ihe nkiri nchebe na akpụkpọ ahụ ma ọ bụ ntutu isi. Na ngwaahịa nlekọta ntutu isi, ihe a na-emepụta ihe nkiri na-enyere aka na nhazi na idobe edozi isi site na ijide mmiri na inye ihe mgbochi megide ihe ndị metụtara gburugburu ebe obibi.
Na ngwaahịa nlekọta anụ ahụ, HEC na-eme ka arụmọrụ nke ngwaahịa ahụ dịkwuo mma site na ibelata mmiri na-efunahụ akpụkpọ ahụ, na-enye mmetụta hydrating na-adịte aka. Nke a na àgwà bara uru na ngwaahịa dị ka moisturizers na ihu masks, ebe ịnọgide na-enwe akpụkpọ hydration bụ isi ọrụ .
Ngwa dị na ngwaahịa kemịkalụ kwa ụbọchị
Ngwaahịa nlekọta onwe onye
N'ime usoro nlekọta onwe onye, a na-eji HEC eme ihe n'ọtụtụ ebe maka ihe na-eme ka ọ sie ike na nkwụsi ike. Na shampoos na conditioners, ọ na-enye viscosity achọrọ, na-eme ka nkwụsi ike nke ụfụfụ dịkwuo mma, na-eme ka ọdịdị ahụ dịkwuo mma, na-eduga n'inwe mmetụta dị mma maka onye ọrụ.
N'ime ngwaahịa nlekọta anụ ahụ dị ka ude, lotions, na gels, HEC na-arụ ọrụ dị ka ihe na-eme ka ọkpụkpụ na-eme ka ahụ sie ike, na-enye aka na mmetụta dị nro na okomoko nke ngwaahịa ahụ. Ọ na-enyekwa aka na ọbụna nkesa nke ihe ndị na-arụ ọrụ, na-eme ka ngwaahịa ahụ dịkwuo mma.
Ngwaahịa ezinụlọ
Na ngwaahịa ihicha ụlọ, HEC na-ekere òkè n'ịgbanwe viscosity na ịkwado nkwusioru. N'ime ihe ncha mmiri na mmiri ịsa efere, HEC na-ahụ na ngwaahịa ahụ na-adị mfe ịnyefe ebe ọ na-ejigide viscosity zuru oke iji jidesie elu, na-enye ọrụ nhicha dị irè.
Na ikuku fresheners na akwa softeners, HEC na-enyere aka ịnọgide na-enwe otu nkwusioru nke isi ísì na ihe ndị na-arụ ọrụ, na-eme ka arụmọrụ na-agbanwe agbanwe na ahụmahụ ọrụ dị ụtọ.
Hydroxyethyl cellulose (HEC) bụ ihe dị mkpa ma dị mkpa n'imepụta ngwaahịa kemịkal kwa ụbọchị. Mmetụta ya na viscosity na nkwụsi ike na-eme ka ọ bụrụ ihe bara uru n'ịmepụta ngwaahịa na-emezu atụmanya ndị ahịa maka udidi, arụmọrụ, na ojiji. Site n'ịkwalite viscosity, hụ na nkwụsi ike ngwaahịa, na imeziwanye ngwa ngwa, HEC na-enye aka nke ukwuu maka ịdị irè na arịrịọ ndị ahịa nke ọtụtụ nlekọta onwe onye na ngwaahịa ụlọ. Ka ọchịchọ maka usoro dị elu, kwụsiri ike na enyi na-aga n'ihu na-aga n'ihu, ọrụ HEC na mmepe ngwaahịa nwere ike gbasaa, na-enye ohere ọhụrụ maka ịmepụta ihe ọhụrụ na ngwaahịa kemịkal kwa ụbọchị.
Oge nzipu: Jun-12-2024