Hlalosa:
Mefuta ea lijo e kenyelletsangli-cellulose ethers
Sebaka sa tekheniki:
Moqapi oa hajoale o amana le lihlahisoa tsa lijo tse nang le cellulose ethers.
Mokhoa oa morao-rao:
Haesale ho tsebahala ka ho kenyelletsa li-cellulose ethers ka har'a lihlahisoa tsa lijo, haholo-holo lihlahisoa tsa lijo tse lokisitsoeng, ho ntlafatsa thepa e fapaneng joalo ka botsitso ba leqhoa le / kapa sebopeho, kapa ho ntlafatsa ho tiea nakong ea tlhahiso, e entsoeng ka mochini kapa e halikiloeng. Kopo ea patent ea Brithani GB 2 444 020 e senola lihlopha tse joalo tsa lijo tse nang le nonionic cellulose ether tse kang methylcellulose, hydroxypropyl cellulose, kapa hydroxypropyl methylcellulose. Methylcellulose le hydroxypropyl methylcellulose li na le "thermos reversible gelling properties". Ho hlalosoa ka ho hlaka hore ha tharollo e nang le metsi a methylcellulose kapa hydroxypropyl methylcellulose e futhumala, sehlopha sa hydrophobic methoxy se ka har'a molek'hule se felloa ke metsi 'me se fetoha gel e nang le metsi. Ka lehlakoreng le leng, ha gel e hlahisoang e pholisitsoe, lihlopha tsa hydrophobic methoxy li khutlisetsoa metsing, moo gel e khutlelang tharollong ea pele ea metsi.
European Patent EP I 171 471 e senola methylcellulose e leng molemo haholo lihlahisoa tsa lijo tse tiileng tse kang meroho e tiileng, nama le li-patties tsa soya ka lebaka la matla a eona a gel. Methylcellulose e fana ka botsitso bo ntlafetseng le momahano ho sebopeho sa lijo tse tiileng, ka hona e fana ka maikutlo a monate ho bareki ba jang lijo tse entsoeng. Ha e qhibiliha ka metsing a batang (mohlala, 5 ° C kapa ka tlase) pele kapa ka mor'a ho kopanya le lisebelisoa tse ling tsa motsoako oa lijo, soya ea methylcellulose e fihlella matla a eona a ho fana ka lihlopha tsa lijo tse tiileng ka ho tiea le ho kopanya hantle. bokgoni.
Leha ho le joalo, maemong a mang, tšebeliso ea metsi a batang ha e na thuso ho mohlahisi oa sebopeho sa lijo. Ka lebaka leo, e ka ba ntho e lakatsehang ho fana ka li-cellulose ethers tse fanang ka lihlopha tsa lijo tse tiileng ka thata e ntle le momahano esita le ha li-cellulose ethers li qhibiliha ka metsing a nang le mocheso oa kamore.
Hydroxyalkyl methylcellulose joalo ka hydroxypropyl methylcellulose (eo hape e tsejoang hore e na le thuso mekhoeng ea lijo) e tsebahala e na le modulus ea polokelo e tlase ha e bapisoa le methylcellulose. Hydroxyalkyl methylcellulose e bonts'ang modulus e tlase ea polokelo ha e thehe li-gel tse matla. Ho hlokahala hore ho be le likhahla tse phahameng esita le li-gel tse fokolang (Haque, A; Richardson; Morris, ER, Gidley, MJ le Caswell, DC ka Carbohydrate Polymers22 (1993) p.175; le Haque, A le Morris, ER1nCarbohydrate Polymers22 (1993) p.161).
Ha hydroxyalkyl methylcellulose joalo ka hydroxypropyl methylcellulose (e bonts'ang modulus e tlase ea polokelo) e kenyellelitsoe mekhoeng e tiileng ea lijo, ho thatafala ha bona le ho momahana ha bona ha li phahame ka ho lekana bakeng sa lits'ebetso tse ling.
Ke ntho ea tlhahiso ea hona joale ea ho fana ka hydroxyalkyl methylcellulose, haholo-holo hydroxypropyl methylcellulose, e ka bapisoang le hydroxyalkyl methylcellulose e tsejoang, e kang hydroxypropyl methylcellulose Ka lehlakoreng le leng, lihlopha tsa lijo tse tiileng li fanoa ka ho tiea ho ntlafetseng le / kapa ho kopana.
Ntho e khethiloeng ea tlhahiso ea hona joale ke ho fana ka hydroxyalkyl methylcellulose, haholo-holo hydroxypropyl methylcellulose, e fanang ka lihlopha tse tiileng tsa lijo tse nang le boima bo botle le / kapa ho kopana esita le ha hydroxyalkyl methylcellulose Ho joalo le ha e qhibiliha ka metsing a nang le mocheso oa kamore.
Ho makatsang ke hore ho fumanoe horehydroxyalkyl methylcellulose, haholo-holo hydroxypropyl methylcellulose, e ka sebelisoa ha ho etsoa litokisetso tsa Ha ho bapisoa le lihlopha tsa lijo tse tiileng, lihlopha tse tsejoang tsa lijo tse tiileng li na le boima bo phahameng le / kapa momahano.
Hape ho makatsang ke hore ho fumanoe hore hydroxyalkyl methylcellulose e itseng, haholo-holo hydroxypropyl methylcellulose, ha e hloke ho qhibiliha metsing a batang ho fana ka lihlopha tsa lijo tse tiileng tse tiileng le / kapa ho kopana.
Nako ea poso: Apr-28-2024