Hydroxyethylcellulose (HEC) bụ polymer a na-ejikarị eme ihe na ụlọ ọrụ dị iche iche, gụnyere ihe ịchọ mma, ọgwụ na nri. Ọ bụ ihe nrụpụta cellulose gbanwetụrụ bụ nke sitere na cellulose eke, polysaccharide dị na mgbidi cell nke osisi. A na-ejikọta ogige a na-agbanwe agbanwe site na usoro mgbanwe kemịkalụ nke gụnyere imeghachi cellulose na ethylene oxide iji webata otu hydroxyethyl na ọkpụkpụ azụ cellulose. Ihe na-akpata hydroxyethylcellulose nwere akụrụngwa rheological pụrụ iche, na-eme ka ọ baa uru n'ọtụtụ ngwa.
Cellulose, bụ isi ihe na-emepụta hydroxyethylcellulose, dị ukwuu n'okike ma nwee ike nweta ya site na isi mmalite osisi dị iche iche. Isi mmalite nke cellulose gụnyere osisi pulp, owu, hemp, na osisi fibrous ndị ọzọ. Mwepụta nke cellulose na-agụnyekarị ịkụda ihe ọkụkụ site na usoro nhazi ma ọ bụ kemịkalụ iji kewapụ eriri cellulose. Ozugbo e kewapụrụ ya, cellulose na-aga n'ihu nhazi iji wepụ adịghị ọcha ma kwadebe ya maka mgbanwe kemịkal.
Njikọ nke hydroxyethylcellulose gụnyere mmeghachi omume nke cellulose na ethylene oxide n'okpuru ọnọdụ a na-achịkwa. Ethylene oxide bụ ngwakọta organic nwere usoro kemịkalụ C2H4O, nke a na-ejikarị emepụta kemịkalụ ụlọ ọrụ dị iche iche. Mgbe a na-emeghachi ya na cellulose, ethylene oxide na-agbakwunye otu hydroxyethyl (-OHCH2CH2) na ọkpụkpụ azụ cellulose, na-eme ka e nwee hydroxyethylcellulose. Ogo nke nnọchi, nke na-ezo aka ọnụ ọgụgụ nke hydroxyethyl otu agbakwunyere kwa nkeji glucose n'ime agbụ cellulose, enwere ike ịchịkwa n'oge usoro njikọ iji kwado njirimara nke ngwaahịa ikpeazụ.
Mgbanwe kemịkalụ nke cellulose iji mepụta hydroxyethylcellulose na-enye ọtụtụ ihe bara uru na polymer. Ngwongwo ndị a na-agụnye ụbara mmiri solubility, mmụba dị mma na ike gelling, nkwụsi ike na-eme ka ọ dịkwuo elu n'ọtụtụ pH na ọnọdụ okpomọkụ, yana ndakọrịta na ihe ndị ọzọ dị iche iche a na-ejikarị eme ihe. Njirimara ndị a na-eme ka hydroxyethylcellulose bụrụ ihe mgbakwunye nwere ọtụtụ ngwa n'ofe ụlọ ọrụ dị iche iche.
N'ime ụlọ ọrụ ịchọ mma, a na-eji hydroxyethylcellulose eme ihe dị ka ihe na-eme ka ọ sie ike, stabilizer na emulsifier na ngwaahịa nlekọta onwe onye dị ka shampoos, conditioners, lotions, creams na gels. Ikike ya iji gbanwee viscosity na udidi nke usoro na-enye ohere ịmepụta ngwaahịa ndị nwere àgwà mmetụta uche na-achọsi ike na njirimara arụmọrụ. Na mgbakwunye, hydroxyethylcellulose nwere ike rụọ ọrụ dị ka onye na-emepụta ihe nkiri, na-enye ihe mgbochi n'elu akpụkpọ ahụ ma ọ bụ ntutu.
N'ime usoro ọgwụ, a na-eji hydroxyethylcellulose mee ihe dị ka onye na-ekekọta n'ichepụta mbadamba nkume, ebe ọ na-enyere aka ijikọ ihe ndị na-arụ ọrụ ọnụ ma melite ike ọrụ nke mbadamba. A na-ejikwa ya n'ọrụ dị ka onye na-akwụsịtụ n'ime usoro mmiri mmiri iji gbochie nhazi nke ihe siri ike ma hụ na nkesa nke ihe na-arụ ọrụ n'otu. Ọzọkwa, hydroxyethylcellulose na-eje ozi dị ka viscosity modifier na ophthalmic ngwọta na topical gels, na-eme ka mma mmanu mmanu mmanu ha na-agbatịkwu oge obibi ha n'elu anya ma ọ bụ akpụkpọ.
N'ụlọ ọrụ nri, hydroxyethylcellulose na-achọta ngwa dị ka onye na-agbapụta, stabilizer, na onye na-ahụ maka gelling na ngwaahịa nri dị iche iche, gụnyere sauces, uwe, desserts, na ihe ọṅụṅụ. Ọ nwere ike melite udidi, ọnụ ọnụ, na shelf kwụsie ike nke usoro nri na-enweghị emetụta uto ha ma ọ bụ isi. A na-amatakarị Hydroxyethylcellulose dị ka nchekwa (GRAS) maka iji ya na nri site n'aka ndị ọrụ nchịkwa dịka US Food and Drug Administration (FDA) na European Food Safety Authority (EFSA).
hydroxyethylcellulose bụ cellulose bara uru sitere na isi mmalite cellulose eke sitere na mgbanwe kemịkalụ na ethylene oxide. Njirimara rheological ya pụrụ iche na-eme ka ọ bụrụ ihe mgbakwunye dị iche iche na ihe ịchọ mma, ọgwụ na ngwaahịa nri, ebe ọ na-arụ ọrụ dị ka ihe na-agba agba, stabilizer, ihe nkedo, emulsifier na onye na-ahụ maka gelling. Site na ngwa ya dịgasị iche iche yana profaịlụ nchekwa dị mma, hydroxyethylcellulose na-aga n'ihu na-abụ isi ihe dị n'ụdị dị iche iche nke ndị ahịa na ụlọ ọrụ mmepụta ihe.
Oge nzipu: Eprel-12-2024