Hec (hydroxyethyth Cellulose)Bụ polymer na-emekarị nke ọma na-eji ọgwụ na-eme ka ọgwụ. Ọ bụ usoro nke cellulose, enwetara site na imeghachi omume ethanolamine (ethlene oxide) na cellulose. N'ihi nkwanye ugwu ya, nkwụghachi mgbanwe, ndabara mgbanwe Vecspatatibility, nke kachasị na mmepe mmepe, ọkachasị na nhazi mmepe na nchịkwa ọgwụ ọjọọ ọgwụ.
1. Ihe Njirimara nke HEC
HEC, dị ka onye gbanwetụrụ cellulose, nwere ihe ndị na-esonụ:
Mmiri solubility: canneticket®hec nwere ike ịmalite ngwọta victous na mmiri, yana njie so ya na ọnọdụ okpomọkụ na pH. Ihe onwunwe a na - eme ka ọ rụọ ọrụ n'ụdị usoro onunu ogwu dika onu na isi.
Biocom: HEC bụ ihe na-enweghị ihe na-adịghị mma ma na-enweghị mgbakasị mmadụ ma ọ bụ dakọtara n'ọtụtụ ọgwụ. Ya mere, a na-eji ya ebe niile na usoro ọgwụgwọ usoro onunu ogwu na usoro nchịkwa ọgwụ ọjọọ.
Enwere ike idozi viscosity: Enwere ike idozi viscosity hec site na ịgbanwe ịdị arọ ya ma ọ bụ itinye uche ya, nke dị oke mkpa maka ịchịkwa ọgwụ ọjọọ.
2. Ngwa HEC na ọgwụ na-akwado ọgwụ
Dịka ezigbo mkpa na ọgwụ na-emepụta ọgwụ, hec nwere ọtụtụ ọrụ. Ihe ndị a bụ mpaghara ngwa ahịa ya na ọgwụ nkwado ọgwụ.
2.1 Ngwa na nkwadebe onu
N'ime usoro onunu ogwu, a na-ejikarị hec na mmepụta nke mbadamba, capsules na nkwadebe mmiri mmiri. Ọrụ ya bụ isi gụnyere:
Ibinye: Na mbadamba, a nwere ike iji hec mee ihe dị ka ihe mkpuchi ka mma ka ọ bụrụ ihe na-eme ihe ma ọ bụ pocrers ọnụ iji hụ na ike na nkwụsi ike nke mbadamba.
Njikwa Nchịkọta: HEC nwere ike nweta nsonaazụ ịghazi site na ịchịkwa ọnụọgụ ọgwụ. Mgbe ejiri hec ndị ọzọ na ihe ndị ọzọ na-eji (dịka polyvinyl pellolidone, wdg cellulose, wdg), belata ugboro ole ịtọhapụ, ma meziwanye ihe ndị metụtara ọrịa.
Twooner: Na nkwadebe mmiri, na-eme ka ọ bụrụ ihe na-atọ ụtọ nwere ike melite uto nke ọgwụ na nkwụsi ike nke usoro onunu ogwu.
2.2 ngwa na nkwado njikere
Emere hEC n'ọtụtụ mmanụ, ude, gels, sels na nkwadebe ndị ọzọ, na-egwu ọtụtụ ọrụ:
A na-eji Matrix: A na-ejikarị hec dị ka matriks maka gels, karịsịa na sistemụ nnyefe ọgwụ. Ọ nwere ike inye nha dị mma ma mee ka oge obibi nke ọgwụ dị ọkụ, si otú a na-eme ka nrụkwuo ike.
Visity na nkwụsi ike: viscosity nke hec nwere ike ịkwalite ndọnye nke nkwado na anụ ahụ ma gbochie ọgwụ ịwụfu oge n'ihi ihe dị iche iche dị ka esemokwu ma ọ bụ ịsa mmiri. Na mgbakwunye, hec nwere ike imeziwanye ude nke ude na ude ma gbochie ịkpa ike ma ọ bụ kristal.
Luarricand na moisturizer: hec nwere ezigbo mmiri modurizing ma nwee ike inye aka mee ka akpụkpọ ahụ ooh ma gbochie nkụ, yabụ ejiri ya na osisi na-elekọta anụ ahụ.
2.3 Ngwa na nkwadebe Opehthalmic
Ngwa nke Hec na nkwadebe nke Ophthalmic bụ na ọrụ ya dị ka ihe nrapado na lubricant:
Enwere ike iji Gelthic Gall na Anya: HEC nwere ike iji ya dị ka ndọrọ maka nkwadebe nke Ophthalmic ka oge na anya ma hụ na ị na-eme ka ọgwụ ahụ na-aga n'ihu. N'otu oge ahụ, viscosity ya nwekwara ike igbochi anya anya mmiri na-ada ngwa ngwa ma nwekwuo oge mbelata ọgwụ.
Lubrication: hec nwere ezigbo hydration ma nwee ike inye lubrication na-aga n'ihu na-aga n'ihu ọrịa ọrịa Ophthalmic dị ka anya nkụ, na-ebelata ahụ erughị ala anya.
Ngwaọrụ 2.4 na nkwadebe
A nwekwara ike iji hec na nkwadebe nke ogbugba ndu nke imerụ ahụ, karịsịa na ị na-eme ntụtụ na njikere a na-akwadebe. Ọrụ bụ isi nke hec na nkwadebe ndị a gụnyere:
Twooner na Staflawa: na ogwu,HECNwere ike ịbawanye viscitse nke ihe ngwọta ahụ, kwụsịlata ọsọ ịgwụ ọgwụ, ma kwalite nkwụsi ike nke ọgwụ.
Ntọhapụ ọgwụ: dị ka otu n'ime ihe ndị ọgwụ ọgwụ na-eme nke ọma, hec nwere ike ijikwa ọnụego ntọhapụ nke ọgwụ ahụ site na ịmebe gel mgbe ogbugba ogwu gachara.
3. Ọrụ HEC na sistemụ nnyefe ọgwụ
Site na mmepe nke teknụzụ ọgwụ, ejiri ya n'ọtụtụ ebe nnyefe ọgwụ ọgwụ dị iche iche, karịsịa n'ọhịa ndị na-ebu nke nano-ọgwụ na ọgwụ na-enyefe ndị na-ebu ego nano. Enwere ike ijikọ HEC na ihe ndị na - eme ọgwụ ọjọọ iji mepụta usoro kwụsiri ike iji hụ na ntọhapụ ọgwụ na - akwado ya.
A ga-eji ụgbọelu nano mee ihe dị ka onye na-ebu ihe dị ka onye na-ebu ogwu nano iji gbochie nchịkọta ma ọ bụ ọdịda nke ọgwụ irighiri ihe ma nwekwuo anụ ahụ ọgwụ.
Microspehers na orper iji kwadebe microshes na ndị na-ebu ọgwụ ọjọọ iji hụ na ịtọhapụ ọgwụ ọjọọ na anụ ahụ ma melite arụmọrụ ọgwụ.
Dị ka ọgwụ dị iche na nke na-arụ ọrụ nke ọma, na-arụ ọrụ na-atụmanya ngwa dị na ọgwụ na-akwado ọgwụ. Na mmepe na-aga n'ihu nke teknụzụ ọgwụ, hec na-arụ ọrụ dị mkpa na njikwa ọgwụ, nchịkwa mpaghara, na-akwado nkwado na usoro nnyefe ọgwụ ọhụụ. Ezigbo ọmarịcha biocom dị na ya, viscosity viscosity na nkwụsi ike na-eme ka ọ gbanwee na mpaghara ọgwụ. N'ọdịnihu, na ọmụmụ OC, ngwa ya na ọgwụ na-akwado ọgwụ ga-akawanye ọtụtụ ma dị iche iche.
Oge post: Dec-28-2024