Hydroxethyl cellulosese (Hec) ke komporo ea polymer ea metsi e fumanoeng ke ho fetoloa lik'hemik'hale tsa celluulo e behang. E sebelisoa haholo ka har'a likomik'hale, lik'hemik'hale tsa letsatsi le letsatsi, thepa ea moaho le masimo a mang. Mefuta e fapaneng ea Hec e khethiloe haholo ka maemo a phahameng ka tekanyo ea sebaka (DS), sebaka sa 1) (MS), Viscosity, jj.
1. Classifice ka tekanyo ea sebaka
Degree of Aptulution (DS) e bolela palo e tloaelehileng ea lihlopha tsa hydroyl unit e ngoe le e ngoe ea glucose. Liphetoho ho DS li tla ama alloubity, litšoantšiso le libakeng tsa ho etsa kopo ea Hec.
Sebaka se tlase sa Hec: DS e ka tlase ho 1.0. Hec e tlase ea hec e na le lisosa tse tlase 'me hangata e sebelisoa libakeng tse hlokang tekanyo ea metsi, joalo ka thepa ea moaho le likokoana-hloko tse itseng.
Sekhahla se bohareng: DS e pakeng tsa 1.0 le 2.0. Mofuta ona oa Hec o na le sokollong e ntle ea metsi le pono e phahameng, 'me hangata e sebelisoa ho lihlahisoa tsa lik'hemik'hale tse kang ho senyeha le li-cosmetics.
Degree e phahameng ea suc: DS e kaholimo ho 2.0. Mofuta ona oa Hec o na le alloudity ea metsi a metsi mme hangata e sebelisoa likopo tse hlokang polao e phahameng le pono e phahameng, e meraki ea indasteri ea lijo, jj.
2. Khethollo ka ho nkeloa sebaka sa 1
Molaki oa Molala (MS) o bua ka palo e tloaelehileng ea lihlopha tsa hydroyethy unit e 'ngoe le e' ngoe ea glucose e etsahalang nakong ea karabelo ea batho ba bangata. Boleng bo phahameng ba MSS, ho molemo le sekhahla sa lifofane sa bona. Hangata li iphetole.
Setsi se tlase sa Molala: MS e ka tlase ho 1. Mofuta ona oa Hec o na le sekhahla sa disfor sa ho qhibiliha kapa ka linako tse telele. E loketse lits'ebetso tse hlokang ho felisoa kapa ho lokolloa ho laoloang.
Sebaka se bohareng ba mafura: MS ke pakeng tsa 1 le 2. E na le sekhahla sa discorate se leka-lekaneng 'me se sebelisoa hohle lik'hemik'hale, le kaho.
Setsi se phahameng sa Molala: MS e kholo ho feta 2. E loketse liphetoho tse hlokang ho qhalana le litlolo tsa litlolo le litokisetso tse ling tsa bongaka.
3. TLHALOSO EA PUSELETSO
Libaka tsa Hec ke sesupo sa bohlokoa sa phofo ea eona ka tharollo, hangata e ipapisitse le bolokolohi ba tharollo le maemo a lekanyelitsoeng.
Viscosity Hec: Visicosity ho 1% tharollo e ka tlase ho 1000 MPA *. Lipatlisiso tse tlase Hec li loketse ho sebelisoa u le moemeli oa taolo ea Rheology, le lubricant litokisetso tsa meriana.
Viscosity Wiscosity Hec: Visicosity ho 1% tharollo e pakeng tsa 1000 le 4000 MPA. Litšoantšo tsa bohareng ba Hec li sebelisoa haholo ka ho bolaoa ke likhakanyo, lidheres, li indasteri ea thepa le lihoebe tse ntle le taolo.
Percosity High Hec: Visicosity ho 1% tharollo e phahame ho feta 4000 mpa. Lipatlisiso tse phahameng tsa Hec li sebelisoa haholo joalo ka thipa ebile li loketse masimo a hlokang lipehelo tse phahameng le likokoana-hloko tsa indasteri le lits'ebetso tse khethehileng tsa indasteri.
4. TLHALOSO EA SEBETSA
Lito li ka khethoa ho ea ka sebopeho sa eona sa 'mele, tse amang ts'ebeliso ea eona le ho sebetsana le eona.
HEC e phofo: mofuta o atileng haholo, ho bonolo ho tsamaisa le ho boloka. Lits'ebetso tse ngata tsa lik'hemik'hale tsa indasteri le letsatsi la letsatsi, e hloka ho tsoak ka metsing ho theha tharollo.
Granular Hec: Kholiseho ea granular ho sebetsana le ho qhalana ho feta ho fokotsa mathata a larg ebile e loketse tlhahiso ea indasteri e kholo.
Solution-type HEC: In some high-end applications, HEC may be provided directly in solution form, which is convenient for direct use and reduces dissolution time, such as in some cosmetics and pharmaceutical products.
5. Setsi se khethehileng se sebetsang
Ho boetse ho na le lihekthe tse ling tse fetotsoeng ka lik'hemik'hale kapa li tšoaroe 'mele ho fihlela litlhoko tsa likopo tse khethehileng.
Hec: Ho hanyetsa metsi a HEC: HEC
Hec Hec: Phetoho e eketsehileng (e joalo ka carboxymethy, e joalo
E tsoakana: Ho sebelisa mekhoa e meng kapa lisebelisoa tse sebetsang ho ntlafatsa ts'ebetso ea eona e felletseng, joalo ka ts'ebeliso ea li-thicperate.
Joaloka thepa ea bohlokoa ea metsi e qhibilihang metsi, mefuta e fapaneng ea hydroxethyl Ho utloisisa lintlha tsena ho thusa ho khetha lihlahisoa tse loketseng tsa hec likopo tse sebetsang ho fumana ts'ebetso le phello e ntlehali. Hore na lik'hemik'hale tsa letsatsi le letsatsi, thepa ea moaho, mabaka kapa mali, hec e sebelisetsoa matla a eona a matle, mofoka le ho etsa lifilimi tse etsang lifilimi.
Poso: Hlakubele-17-2025