Hydroxye ether (HEC) ke polima e se nang ionic e qhibilihang ka metsing e tsoang ho selulose.Hangata e sebelisoa liindastering tse fapaneng, joalo ka meriana, litlolo le lijo, joalo ka li-thickening le li-gel agents.Ho rarolla HEC ke ts'ebetso e tobileng, empa e hloka ho nahana ka lintlha tse kang mocheso, pH le ho sisinyeha.
Boemo ba Hec:
Hydroxye ethyl cellulose (HEC) ke motsoako oa selulose o entsoeng ka karabelo le oxide.Karabelo e hlahisa sehlopha sa hydroxyl ka har'a ketane e kholo ea selulose, ka hona e fana ka polymer ho qhibilihang ka metsing.HEC e khetholloa ke bokhoni ba ho etsa gel e hlakileng le e tsitsitseng ka tharollo ea aquare, e etsang hore e be karolo ea mesebetsi e mengata har'a likopo tse ngata.
Lintlha tse amang ho felisoa ha HEC:
1. Mocheso:
HEC ho qhibiliha ho itšetlehile ka mocheso.Hangata mocheso o phahameng o lebisa ho qhibiliha ka potlako.
Hangata metsi a futhumetseng a sebelisoa ho khothalletsa mokhoa oa ho qhibiliha.Leha ho le joalo, mocheso o feteletseng o lokela ho qojoa ho thibela ho senyeha.
2. Boemo ba PH:
HEC e tsitsitse ka har'a mefuta e mengata ea pH, hangata e pakeng tsa 2 le 12. Ho fetola boleng ba pH ea tharollo ho ka ama tekanyo ea ho qhibiliha.
Phallo e ntle ka ho fetisisa hangata ke khetho ea pele ea ho ba boemo ba pH bo nang le alkaline hanyane.
3. Hlohlelletsa:
Hlohlelletsa kapa hlohlelletsa ho ntlafatsa ho qhibiliha ha HEC.Motsoako o bonolo o thusa polima ka ho lekana ka har'a solvent ho thibela li-blocks.
Ho tsosoa ha mochine kapa ho sebelisa motsoako oa makenete ho tloaelehile tikolohong ea laboratori.
4. Khetho ea solvent:
HEC e qhibiliha ka metsing ho etsa tharollo e hlakileng.Khetho ea boleng ba metsi (distillation, exfoliating) e ka ama ho qhibiliha.
Ho qoba litšila tse ka har'a lihlapolli ke habohlokoa ho thibela liphello leha e le life tse mpe.
Mokhoa oa ho qhaqha HEC:
1. Qhala metsi a chesang:
Chesa metsi ho mocheso o phahameng ho feta mocheso oa kamore, empa o le tlase ho feta mocheso oa mocheso oa HEC.
Kamehla tsosa HEC butle-butle eketsa metsi ho thibela li-blocks.
Boloka mocheso ho fihlela o qhibiliha ka ho feletseng.
2. Metsi a batang a qhibiliha:
Le hoja e le butle ho feta metsi a chesang, metsi a batang a ntse a ka qhala HEC ka katleho.
Butle-butle eketsa HEC metsing a batang 'me u kopanye motsoako.
Fetola le ho qhala nako e lekaneng bakeng sa li-polymers.
3. Phetoho ea PH:
Ho ea ka kopo, pH ea metsi e sebelisoa ho fetola pH ea metsi ho ea boemong bo hlokahalang.
Lekola liphetoho tsa pH nakong ea ho qhibiliha ho netefatsa botsitso.
4. Theknoloji e tsosang takatso:
Sebelisa mochini o susumetsang, ho sisinyeha ha makenete, kapa ho kopanya ha bonolo mefuta e meng ho thusa HEC ho hasana.
Tsoela pele ho susumetsa ho fihlela tharollo e lekana.
5. Motsoako oa mokhoa:
Motsoako oa mocheso, phetoho ea pH le ho sisinyeha ho sebelisoa ho ntlafatsa ho qhibiliha.
Mekhahlelo e fapaneng ea liteko ho fihlela sekhahla se hlokahalang sa ho felisoa.
ho batle phoso:
1. Ho thibela:
Haeba thibela e etsahala, ka kopo fokotsa ho eketseha ha solvent le ho eketsa ho tsosoa ha HEC.
Bola ka bouena boloko bofe kapa bofe bo entsoeng ba sehlopha, kapa lokisa lebelo la ho sisinyeha.
2. Phallo e sa lekaneng:
Haeba polymer e sa qhibilihe ka ho feletseng, hlahloba litšila ka har'a solvent kapa e sa lekaneng e susumetsang.
Nahana ka ho lokisa mocheso kapa ho sebelisa mekhoa e fapaneng ea ho qhibiliha.
Solubbing HEC e kenyelletsa lintlha tse fapaneng, ho kenyelletsa mocheso, pH le ho sisinyeha.Ho utloisisa litšoaneleho tsa HEC le litlhoko tse khethehileng tsa likopo ke tsa bohlokoa ho finyella ho felisoa ho molemo ka ho fetisisa.Liteko tsa liteko le ho beha leihlo ka hloko li tla thusa ho rarolla mathata afe kapa afe a ka bang teng.Kamehla latela tataiso ea tšireletso 'me u shebe tafole ea data ea tekheniki ho fumana litaelo tse tobileng tse fanoeng ke moetsi.
Nako ea poso: Dec-25-2023