I-Propylene glycol yinto ovame ukuyibona ohlwini lwezithako zezimonyo zokusetshenziswa kwansuku zonke.Ezinye zilebulwe ngokuthi 1,2-propanediol kanti ezinye zithi1,3-propanediol, pho yini umehluko?
I-1,2-Propylene glycol, i-CAS No. 57-55-6, ifomula ye-molecular C3H8O2, i-reagent yamakhemikhali, ixubene namanzi, i-ethanol nama-solvents amaningi e-organic.Iwuketshezi lwe-viscous olungenambala olusesimweni esijwayelekile, olucishe lungabi naphunga futhi lube mnandi ephunga elimnandi.
Ingasetshenziswa njenge-ejenti yokumanzisa izimonyo, umuthi wokuxubha nensipho kanye ne-glycerin noma i-sorbitol.Isetshenziswa njenge-ejenti yokumanzisa kanye ne-leveling kumadayi wezinwele nanjenge-ejenti evimbela ukuqhwa.
1,3-Propylenei-glycol, i-CAS No. 504-63-2, ifomula yamangqamuzana i-C3H8O2, iwuketshezi lwe-viscous olungenambala, olungenaphunga, olusawoti, olune-hygroscopic, lungafakwa i-oxidized, i-esterified, i-miscible ngamanzi, i-miscible ku-ethanol, i-ether.
Ingasetshenziswa ekuhlanganisweni kwezinhlobo eziningi zezidakamizwa, i-polyester entsha ye-PTT, i-intermediate yemithi kanye nama-antioxidants amasha.Yimpahla eluhlaza yokukhiqiza i-polyester engagcwalisiwe, i-plasticizer, i-surfactant, i-emulsifier kanye ne-emulsion breaker.
Zombili zinefomula ye-molecular efanayo futhi zingama-isomer.
I-1,2-Propylene glycol isetshenziswa njenge-ejenti ye-antibacterial noma umgqugquzeli wokungena ezimonyoni ekugxilweni okuphezulu.
Emazingeni aphansi, ngokuvamile isetshenziswa njenge-moisturizer noma insiza yokuhlanza.
Ezimweni eziphansi, ingasetshenziswa njenge-pro-solvent yezithako ezisebenzayo.
Ukucasuka kwesikhumba nokuphepha ezindaweni ezahlukene kuhluke ngokuphelele.
I-1,3-Propylene glycol isetshenziswa kakhulu njenge-solvent ezimonyoni.Kuyi-organic polyol moisturizing solvent esiza izithako zezimonyo zingene esikhunjeni.
Inamandla aphezulu okuthambisa kune-glycerin, i-1,2-propanediol ne-1,3-butanediol.Ayinamatheli, ayinakho ukuvutha, futhi ayinazo izinkinga zokucasuka.
Izindlela eziyinhloko zokukhiqiza i-1,2-propanediol yilezi:
1. Indlela ye-propylene oxide hydration;
2. Indlela ye-propylene eqondile ye-catalytic oxidation;
3. Indlela yokushintshanisa i-Ester;4.glycerol hydrolysis synthesis method.
I-1,3-Propylene glycol ikhiqizwa ikakhulukazi:
1. Indlela ye-Acrolein enamanzi;
2. Indlela ye-ethylene oxide;
3. Indlela ye-Glycerol hydrolysis synthesis;
4. Indlela ye-Microbiological.
I-1,3-Propylene glycol ibiza kakhulu kune-1,2-Propylene glycol.1,3-PropyleneI-glycol iyinkimbinkimbi kancane ukukhiqiza futhi inesivuno esincane, ngakho-ke intengo yayo isephezulu.
Kodwa-ke, olunye ulwazi lubonisa ukuthi i-1,3-propanediol ayicasuli kancane futhi ayikhululekile esikhumbeni kune-1,2-propanediol, ize ifinyelele ezingeni lokungaphenduli okungakhululekile.
Ngakho-ke, eminyakeni yamuva, abanye abakhiqizi baye bashintsha i-1,2-propanediol nge-1,3-propanediol ezingxenyeni zezimonyo ukuze banciphise ukungahambi kahle okungenzeka esikhumbeni.
Ukukhathazeka kwesikhumba okubangelwa izimonyo kungase kungabangelwa yi-1,2-propanediol noma i-1,3-propanediol kuphela, kodwa kungase kubangelwe izici ezihlukahlukene.Njengoba umqondo wabantu wezempilo yezimonyo nokuphepha ujula, isidingo esinamandla semakethe sizophinde sigqugquzele abakhiqizi abaningi ukuthi bakhe imikhiqizo engcono ukuze ihlangabezane nezidingo zabaningi babathandi bobuhle!
Isikhathi sokuthumela: Sep-29-2021