A na-eji ndị na-ehicha ihe na-eme ihe n'ọtụtụ ebe na ụlọ ọrụ mmepụta ihe na ụlọ dị iche iche iji wepụ agba, mkpuchi na ihe ndị ọzọ siri ike dị ọcha. Iji kwalite arụmọrụ nke ndị na-ehicha ihe ndị a, a na-ewebata ihe dị iche iche kemịkalụ n'ime ha, na hydroxyethyl cellulose (HEC) bụ ihe mgbakwunye dị mkpa.
Nkọwa nke hydroxyethyl cellulose
Hydroxyethyl Cellulose (HEC) bụ ihe na-abụghị ionic mmiri-soluble ihe polymer nwetara site kemịkalụ mgbanwe nke eke cellulose. Njiri mara ya gụnyere ezigbo mmiri solubility, ike ngbanwe viscosity kwụsiri ike, ihe na-emepụta ihe nkiri mara mma na mmetụta siri ike. Àgwà ndị a na-eme ka HEC dị mkpa n'ọtụtụ ngwa ọrụ mmepụta ihe, gụnyere agba, ihe nchacha, ihe ịchọ mma, ọgwụ, nri na ubi ndị ọzọ.
Ọdịdị chemical nke hydroxyethyl cellulose
Ntọala bụ isi nke HEC bụ molekul yinye akpụpụtara site na ijikọ nkeji β-D-glucose nke cellulose site na njikọ 1,4-glycosidic. Otu hydroxyethyl na-edochi akụkụ nke hydroxyl dị na cellulose molecule, na-enye ya mma solubility na physicochemical Njirimara. Site n'ịgbanwe ogo nke nnọchi na ịdị arọ molecular nke otu hydroxyethyl, enwere ike idozi viscosity na solubility nke HEC, nke dị oke mkpa maka ịkwalite arụmọrụ na ngwa dị iche iche.
Ọrụ Hydroxyethyl Cellulose na-ehicha ihe
1. Ịba ụba
Otu n'ime ọrụ kachasị mkpa nke HEC bụ ihe na-agba agba. Na ndị na-ehicha agba, HEC nwere ike ịbawanye viscosity nke ngwọta nke ọma. Mmetụta dị ukwuu a nwere ike igbochi onye na-ehicha ọkụ ka ọ na-agba ọsọ mgbe etinyere ya, si otú a na-eme ka ọ dị mfe iji na ịdị irè ya. Mmetụta dị nro na-enye ohere ka onye na-ehicha ihe na-eme ka ọ bụrụ ihe mkpuchi siri ike n'elu elu kwụ ọtọ ma ọ bụ nke na-achọsi ike, na-agbatị oge ihe omume na ịkwalite mmetụta nhicha.
2. Ịkwụsị nkwusioru
A na-ejikwa HEC dị ka ihe nkwụsi ike na ndị na-ehicha agba iji nyere aka kwụsịtụ irighiri ihe na-adịghị ike ma ọ bụ ihe siri ike. Ihe onwunwe a dị ezigbo mkpa maka usoro multiphase. HEC nwere ike igbochi sedimentation nke ihe siri ike na ihe dị ọcha, si otú ahụ na-eme ka usoro nhazi dị iche iche na mmetụta nhicha na-agbanwe agbanwe. Nkwụsi ike a na-adabere na nhazi netwọk nke HEC mere iji jide ma kwụsịtụ ihe siri ike na ngwọta.
3. Nhazi ihe nkiri
HEC nwere ezigbo ihe na-emepụta ihe nkiri, nke na-enye ohere ka onye na-ehicha ihe na-emepụta ihe nkiri nchebe n'elu mgbe ejiri ya. Ihe nkiri a nwere ike igbochi ncha ahụ ka ọ ghara ikpochapụ ma ọ bụ na-etinye ya ngwa ngwa n'oge usoro nhicha ahụ, si otú ahụ gbasaa oge ọrụ ma melite mmetụta nhicha. N'otu oge ahụ, ihe na-emepụta ihe nkiri ahụ nwekwara ike ichebe ebe a na-ehichapụ site na mmetọ nke abụọ na mmebi.
4. mmanu mmanu
N'oge usoro ihicha, mmanye nke HEC na-enyere aka belata esemokwu n'ibu, nke dị mkpa karịsịa mgbe ị na-ehicha ihe ndị dị nro. Ngwọta colloidal nke a na-emepụta site na mgbasa nke HEC na mmiri nwere ike inye mmanu mmanu, belata esemokwu n'etiti ngwá ọrụ nhicha na elu, ma belata ihe ize ndụ nke mmebi.
5. Synergist
HEC nwere ike iji ihe ndị ọzọ na-arụkọ ọrụ ọnụ iji kwalite ọrụ nchacha n'ozuzu ya. Dịka ọmụmaatụ, HEC nwere ike imeziwanye nkesa na ịrụ ọrụ nke surfactants na ncha, si otú ahụ na-eme ka mmetụta dị ọcha dịkwuo mma. Tụkwasị na nke ahụ, HEC nwekwara ike imetụta mgbasawanye na ntinye nke nchacha n'elu site n'ịgbanwe rheology nke ngwọta ahụ, na-eme ka ikike ya dịkwuo elu.
Otu esi eji hydroxyethyl cellulose
1. Usoro mgbasa
Ojiji HEC na ihe nchacha agba na-amalitekarị na mgbasa. Usoro mgbasa na-agụnyekarị iji nwayọọ na-agbakwunye HEC ntụ ntụ na mmiri n'okpuru edemede. Iji zere agglomeration ma hụ na mgbasa nke otu, a na-achịkwa okpomọkụ mmiri n'ime ebe ụfọdụ. HEC na-agbaze iji mepụta ngwọta viscous transperent, nke enwere ike ịgbakwunye ihe ndị ọzọ dị ka ọ dị mkpa.
2. Usoro mgbakwunye
Na nhazi nke ihe nchacha agba, usoro nke mgbakwunye HEC nwere ike imetụta arụmọrụ nke ngwaahịa ikpeazụ. A na-atụkarị aro ka ịgbakwunye HEC mgbe ihe ndị bụ isi na-agbaze kpamkpam ma ọ bụ gwakọta ya. Nke a na-eme ka HEC nwee ike itinye mmetụta na-eme ka ọ sie ike ma na-eme ka ahụ sie ike ma na-ebelata mmeghachi omume ọjọọ na ihe ndị ọzọ.
3. Njikwa ntinye uche
Ntinye uche nke HEC na-emetụta kpọmkwem viscosity na iji mmetụta nke onye na-ehicha ihe. Site n'ịgbanwe ọnụọgụ HEC, enwere ike ịchịkwa mmiri na ịdịgide nke onye na-ehicha ihe iji zute ngwa ngwa dị iche iche. N'ikwu okwu n'ozuzu, ntinye nke HEC na ihe dị ọcha sitere na 0.1% ruo 2%, dabere na viscosity chọrọ na nhazi chọrọ.
Uru nke hydroxyethyl cellulose
1. Nchekwa
Dị ka ngwaahịa a gbanwere nke cellulose eke, HEC nwere ezigbo biocompatibility na enyi gburugburu ebe obibi. Ojiji nke HEC na ndị na-ehicha agba agaghị emetọ gburugburu ebe obibi ma ọ bụ mee ka ndị ọrụ ahụ bụrụ ihe ize ndụ, na-eme ka HEC bụrụ ihe mgbakwunye nchekwa na-adịghị egbu egbu.
2. Nkwụsi ike
HEC na-egosi nkwụsi ike dị mma n'ọtụtụ pH na ọnọdụ okpomọkụ na ọ dịghị enwe ike imebi ma ọ bụ ọdịda. Nkwụsi ike a na-eme ka onye na-ehicha ya nwee ike ịnọgide na-arụ ọrụ dị mma n'okpuru nchekwa dị iche iche na iji ọnọdụ.
3. Ego
Ọnụ ego dị ala nke HEC bụkwa otu n'ime ihe kpatara ngwa ngwa ya. N'ihi arụmọrụ ya dị mma na ọnụ ala dị ala, HEC ọ bụghị nanị na-enye arụmọrụ dị mma na ndị na-ehicha agba, kamakwa ọ nwere nnukwu ọnụ ahịa.
Mgbochi nke Hydroxyethyl Cellulose
N'agbanyeghị ọtụtụ uru ya, HEC nwekwara ụfọdụ njedebe na ngwa ya na ndị na-ehicha agba. Dịka ọmụmaatụ, HEC nwere ike imebi n'okpuru ụfọdụ acid siri ike ma ọ bụ ọnọdụ alkaline, nke na-egbochi iji ya mee ihe na ụfọdụ usoro pụrụ iche. Tụkwasị na nke ahụ, usoro mgbasa nke HEC kwesịrị iji nlezianya chịkwaa iji zere agglomeration na mgbasa na-enweghị isi, ma ọ bụghị ya, ọ ga-emetụta arụmọrụ nke onye na-ehicha ihe.
Ntuziaka mmepe n'ọdịnihu
Site na ọganihu nke nkà na ụzụ na mgbanwe na-achọ, ntinye nke HEC na ndị na-ehicha agba nwere ike gbasaa ọzọ. Nnyocha n'ọdịnihu nwere ike ilekwasị anya na akụkụ ndị a:
Ọganihu arụ ọrụ: Na-emeziwanye arụmọrụ synergistic na nkwụsi ike nke HEC site na mgbanwe kemịkalụ ma ọ bụ iji ihe ndị ọzọ jikọta.
Mmepe akwụkwọ ndụ akwụkwọ ndụ: Zụlite usoro mmepụta HEC dị mma na gburugburu ebe obibi iji belata mmetụta na gburugburu ebe obibi ka ọ na-emewanyewanye biodegradaability ya.
Mgbasa ngwa ngwa: Nyochaa ngwa nke HEC na ụdị ihe ndị ọzọ iji gboo mkpa nhicha dị iche iche, karịsịa n'ọhịa nke ụlọ ọrụ mmepụta ihe dị elu.
Enweghị ike ileghara ọrụ hydroxyethyl cellulose na ndị na-ehicha agba anya. Dị ka onye na-arụ ọrụ nke ọma, stabilizer na ihe nkiri mbụ, HEC na-eme ka arụ ọrụ nke detergents dịkwuo mma ma mee ka ha rụọ ọrụ nke ọma na ngwa dị iche iche. N'agbanyeghị oke ụfọdụ, HEC ka nwere atụmanya mmepe sara mbara n'ọdịnihu site na nkwalite teknụzụ na nyocha ngwa. Dị ka ihe mgbakwunye nchekwa, kwụsiri ike na nke akụ na ụba, HEC ga-aga n'ihu na-arụ ọrụ dị mkpa n'ọhịa nke nhicha agba.
Oge nzipu: Jun-27-2024