Litokisetso le thepa ea 'mele ea hydropxpropyl starch ether

HydropxypropinyL starch ether (HPSte) e lokiselitsoe ts'ebetsong ea ts'ebetso ea lik'hemik'hale tse kenyelletsang lihlopha tse hlahisang hydroxypropyl. Mokhoa oa ho lokisa hangata o kenyelletsa mehato e latelang:

1. Khetho ea starch: starch ea boleng bo phahameng, hangata e tsoa mehloling e kang poone, koro, e khethoa joalo ka thepa ea ho qala. Khetho ea mohloli oa starch o ka ama thepa ea sehlahisoa sa HPSte.
2. Ho hlophisoa ha badchs paseka: starch e khethiloeng e hasana ka metsing ho etsa paseka ea starch. Paseka e futhumetse mocheso o itseng oa ho cheka li-gelanude tsa statch, e lumella ho ithabisa le ho kenella mehatong e latelang.
3. Karabelo ea Etherization: Chetatin paten lense e etsoa ka nako eo le ho buuoa ka Powitne ea Power. Propylene Oxide e ea arabela ka lihlopha tsa hydroyl (-Hoh) molikoli oa statreka, e felisang sehokelo sa hydroxyproping.
4. Ho se nke lehlakore le ho hloekisoa: Kamora karabelo ea menyetla, motsoako oa karabelo o sa nke lehlakore ho tlosa lintlafatso kapa li-catagests. Setepa se hlahisoang ke hydroxyproPyl e hloekisoa ka mekhoa e kang ho fifala, ho hlatsoa le ho omisa ho tlosa litšila le lik'hemik'hale tse setseng.
5. Phetoho ea mofuta oa khetho: Melemo ea 'mele ea HPSte, joalo ka boholo le ho tsamaisoa, ho ka fetoloa ho fihlela litšobotsi tse lakatsehang bakeng sa lits'ebetso tse ikhethileng.

Melemo ea 'mele ea hydroxypropyl e ka fapana ho latela lintlha tse kang degree ea sebaka (DS), boima ba limoletsi le maemo a bilicle le ho sebetsa maemo le ho lokisa maemo. Mefuta e meng e tloaelehileng ea 'mele ea HPSte e kenyelletsa:

1. Ponahalo: HPSTE ka tloaelo e tšoeu ho phofo e tšoeu e nang le kabo e ntle ea sebopeho se setle. Moriri oa moroto o ka fapana ho qala ho silafatsa sebopeho sa ho sa tloaelehang ho latela ts'ebetso ea ho etsa thepa.
2. Boholo ba tsona: Boholo ba HPSte bo ka fetoha ho li-micrometer tse 'maloa ho isa ho mashome a mahlano ho mashome a mahlano a afmeters, a sotlehileng.
3. Bongata bo bongata: Bongata bo bongata ba HPS li susumetsa lipalesa, litšobotsi le litlhokahalo tsa ho paka. Hangata e lekantsoe li-grams ka lisenthimithara tsa cubic (g / cm³) kapa li-kilogram ka li-kilogram ka litara (kg / l).
4. SELLE: HPSTE e sa khathatse ka metsing a batang empa e ka qhalana le ho ruruha ka metsing a chesang, a theha lithapelo tsa Visis kapa li-gels. Maeto a tharollo le hydration a HPSte a ka fapana ho itšetleha ka lintlha tse kang DS, boima ba Molek'hule le mocheso.
5. Lits'oants'o: HPSTE Litšebeletso tsa taolo ea ho laola le liphiri tsa Rheoloms, li susumetsa Visicossiity, boitšoaro bo phallang le botsitso ba liforomo. Litsi tsa tlhahlobo ea HPST li itšetlehile ka lintho tse joalo ka ho tsepamisa mohopolo, mocheso le sheale.
6. Sekhahla sa Hydration: Sekhahla sa HPSte se bolelang sekhahla se monya metsi le ho ruruha ho theha lithapelo tsa li-viscous kapa li-gels. Thepa ena e bohlokoa lits'ebetsong moo ho hlokahalang hydration 'me ho hlokahala hydration kapele.

Litokisetso le thepa ea 'mele ea iydroxypropyl starch e tsamaisang ho fihlella litlhoko tsa boitsebiso le litekanyetso tse fapaneng le tsa bohlokoa.