1. Gịnị bụ hydroxyethyl cellulose (HEC)?
Hydroxyethyl cellulose (HEC)bụ ngwakọta polymer eke na ihe sitere na cellulose. Ọ bụ ihe ether na-agbaze mmiri na-enweta site na mmeghachi omume nke cellulose na ethylene oxide. Usoro kemịkalụ nke hydroxyethyl cellulose nwere skeleton bụ isi nke cellulose, ma n'otu oge ahụ na-ewebata hydroxyethyl (-CH2CH2OH) nnọchi n'ime agbụ molekụla ya, nke na-enye ya mmiri solubility na ụfọdụ ihe anụ ahụ na kemịkal. Ọ bụ kemịkalụ na-adịghị egbu egbu, nke na-adịghị ewe iwe na ihe na-emebi emebi nke a na-ejikarị eme ihe na ụlọ ọrụ dị iche iche.
2. Ịrụ ọrụ nke hydroxyethyl cellulose
Mmiri solubility: Hydroxyethyl cellulose nwere ezigbo solubility na mmiri ma nwee ike igbari ngwa ngwa na oyi ma ọ bụ mmiri ọkụ iji mepụta ngwọta viscous. Solubility na-abawanye na mmụba nke ogo hydroxyethylation, ya mere ọ nwere njikwa dị mma na ngwa mmepụta ihe.
Njirimara viscosity: Ngwọta viscosity nke hydroxyethyl cellulose nwere njikọ chiri anya na ịdị arọ ya, ogo hydroxyethylation na ntinye nke ngwọta. Enwere ike ịhazi viscosity ya na ngwa dị iche iche iji zute usoro dị iche iche chọrọ. N'ebe dị ala, ọ na-eme omume dị ka ihe ngwọta dị ala, ebe ọ bụ na ọ dị elu, viscosity na-abawanye ngwa ngwa, na-enye ihe ndị siri ike rheological.
Nonionicity: Hydroxyethyl cellulose bụ nonionic surfactant nke na-adịghị emetụta mgbanwe na pH uru nke ngwọta, n'ihi ya, ọ na-egosipụta ezi nkwụsi ike n'okpuru dị iche iche gburugburu ebe obibi ọnọdụ. Ihe onwunwe a na-eme ka a na-eji ya eme ihe n'ọtụtụ nhazi nke chọrọ nkwụsi ike.
Ọkpụkpụ: Hydroxyethyl cellulose nwere ezigbo ihe na-eme ka ọ dị arọ ma na-eji ya eme ihe n'ọtụtụ usoro mmiri. Ọ nwere ike ịbawanye viscosity nke mmiri mmiri n'ụzọ dị irè ma mezie nhazi na arụmọrụ nke ngwaahịa ahụ.
Njirimara na-emepụta ihe nkiri na emulsifying: Hydroxyethyl cellulose nwere ụfọdụ ihe na-emepụta ihe nkiri na ihe emulsifying, ma nwee ike gbasaa ngwa ngwa dị iche iche na usoro multiphase. Ihe onwunwe a dị mkpa karịsịa na ihe ịchọ mma na ụlọ ọrụ mkpuchi.
Nkwụsi ike nke okpomọkụ na solubility:Hydroxyethyl cellulosedịtụ kwụsiri ike na ikpo ọkụ, nwere ike ịnọgide na-enwe ike ike ya ma na-arụ ọrụ n'ime oke okpomọkụ, ma kwekọọ na mkpa nke gburugburu okpomọkụ dị elu. Ngwongwo a na-eme ka ọ baa uru maka itinye na mpaghara ụfọdụ pụrụ iche.
Biodegradability: N'ihi isi iyi cellulose sitere n'okike ya, hydroxyethyl cellulose nwere ezigbo biodegradability, ya mere ọ na-enwe mmetụta dị nta na gburugburu ebe obibi na ọ bụ ihe na-emetụta gburugburu ebe obibi.
3. Ngwa ubi nke hydroxyethyl cellulose
Ụlọ ọrụ na-ewu ụlọ na mkpuchi: Hydroxyethyl cellulose na-ejikarị eme ihe dị ka onye na-ekpuchi mmiri na onye na-ejigide mmiri na ụlọ ọrụ ihe owuwu, a na-ejikwa ya na ciment mortar, adhesives, dry mortar na ngwaahịa ndị ọzọ. Ọ nwere ike imeziwanye arụmọrụ na mmiri mmiri nke ihe ahụ, mee ka adhesion na ịrụ ọrụ mgbochi mmiri nke mkpuchi. N'ihi njide mmiri dị mma, ọ nwere ike ịgbatị oge oghere nke ihe ahụ nke ọma, gbochie evaporation nke mmiri ngwa ngwa, ma hụ na ịdị mma ụlọ.
Mwepụta mmanụ na mmiri mmiri: Na mmịpụta mmanụ, a na-eji hydroxyethyl cellulose mee ihe dị ka ihe na-eme ka mmiri na-egwupụta mmiri na mmiri na-agwụcha, nke nwere ike ịhazigharị rheology nke mmiri mmiri nke ọma, gbochie ntinye nke apịtị na mgbidi olulu mmiri ma mee ka mgbidi mgbidi dị mma. Ọ nwekwara ike belata ntinye mmiri ma melite arụmọrụ na nchekwa nke mkpọpu mmiri.
Ụlọ ọrụ ịchọ mma:Hydroxyethyl celluloseA na-ejikarị ngwaahịa nlekọta anụ ahụ, ncha ntutu, gel ịsa ahụ, ude ihu na ngwaahịa ndị ọzọ dị ka thickener, emulsifier na stabilizer na ịchọ mma. Ọ nwere ike ịbawanye viscosity nke ngwaahịa ahụ, meziwanye mmiri nke ngwaahịa ahụ, mee ka mmetụta nke ngwaahịa ahụ dịkwuo mma, ma mepụta ihe nkiri nchebe na akpụkpọ ahụ iji nyere aka mee ka mmiri na-echebe ma chebe ya.
Ụlọ ọrụ na-emepụta ọgwụ: Hydroxyethyl cellulose na-eji dị ka onye na-ekekọta ọgwụ, onye na-ahapụ ya, na ihe nkpuchi maka mbadamba nkume na capsules na ụlọ ọrụ ọgwụ. Ọ nwere ike melite njirimara anụ ahụ nke nkwadebe ọgwụ ma welie nkwụsi ike na bioavailability nke ọgwụ.
Ụlọ ọrụ na-emepụta akwa na akwụkwọ: N'ime ụlọ ọrụ textiles, hydroxyethyl cellulose nwere ike iji mee ihe dị ka ihe inyeaka na-esiji akwa na ntinye akwụkwọ iji meziwanye ịdị n'otu na ịdị nro nke akwa ákwà. N'ime ụlọ ọrụ na-emepụta akwụkwọ, a na-eji ya dị ka ihe na-eme ka ọ dị elu na mkpuchi akwụkwọ iji meziwanye àgwà obibi akwụkwọ na gloss nke akwụkwọ.
Ụlọ ọrụ nri: A na-ejikwa hydroxyethyl cellulose na nhazi nri, tumadi dị ka thickener, emulsifier na stabilizer. Ọ nwere ike gbanwee uto na udidi nke nri, dịka ọmụmaatụ, na ice cream, jelii na ihe ọṅụṅụ, ọ nwere ike melite nkwụsi ike na palatability nke ngwaahịa.
Agriculture: N'ubi ugbo, a na-ejikarị hydroxyethyl cellulose eme nkwadebe pesticide, mkpuchi fatịlaịza na ngwaahịa nchebe osisi. Ngwongwo ya na-eme ka ọ sie ike na nke na-eme ka ọ dịkwuo mma na-enyere aka melite ịdị n'otu na nchikota nke ihe ndị na-efesa, si otú ahụ na-emeziwanye irè nke pesticides na ibelata mmetọ na gburugburu ebe obibi.
Kemịkalụ kwa ụbọchị: N'ime nhicha ụlọ na ngwaahịa nlekọta onwe onye, a na-eji hydroxyethyl cellulose dị ka ihe na-agbapụta na ihe nkwusi ike iji welie mmetụta na mmetụta nke ngwaahịa ahụ. Dịka ọmụmaatụ, a na-ejikarị ya eme ihe na kemịkalụ kwa ụbọchị dị ka mmiri ịsa efere, ihe ncha akwa, na ihe nchacha ihu.
Hydroxyethyl cellulosebụ ngwakọta molekụla dị elu nwere arụmọrụ dị elu yana ọtụtụ ojiji. Mmiri ya dị mma, nkwụsi ike, nkwụsi ike nke okpomọkụ na biodegradability na-eme ka a na-eji ya eme ihe n'ọtụtụ ebe dị ka ihe owuwu, mmanụ ala, ihe ịchọ mma, ọgwụ na textiles. Site na nkwalite nke ihe nchekwa gburugburu ebe obibi na ọganihu teknụzụ, atụmanya ngwa nke HEC ga-aba ụba ma ghọọ nhọrọ dị mkpa maka ihe nchebe gburugburu ebe obibi ndụ ndụ na ihe mgbakwunye arụ ọrụ.
Oge nzipu: Nov-07-2024