Umahluko phakathi kwe-1,3 propanediol kunye ne-1,2 propanediol

I-1,3-propanediol kunye ne-1,2-propanediol zombini i-organic compounds yeklasi ye-diols, oku kuthetha ukuba banamaqela amabini asebenzayo e-hydroxyl (-OH).Ngaphandle kokufana kwazo kwesakhiwo, zibonisa iipropati ezahlukeneyo kwaye zinezicelo ezahlukileyo ngenxa yolungiselelo lwala maqela asebenzayo ngaphakathi kwezakhiwo zawo zeemolekyuli. 

1,3-Propanediol:

I-1,3-propanediol, ehlala ifinyeziwe njenge-1,3-PDO, ine-chemical formula C3H8O2.Lulwelo olungenambala, olungenavumba, nolungenancasa kubushushu begumbi.Umahluko ophambili kubume bayo kukuba amaqela amabini e-hydroxyl abekwe kwiiathom zekhabhoni ezahlulwe yi-athomu yekhabhoni enye.Oku kunika i-1,3-PDO iimpawu zayo ezizodwa.

Iipropati kunye nezicelo ze-1,3-Propanediol:

Isinyibilikisi:I-1,3-PDO yi-solvent eluncedo kwiintlobo ezahlukeneyo ze-polar kunye ne-nonpolar ngenxa yesakhiwo sayo esisodwa sekhemikhali.

Isithinteli sokukhenkceza:Idla ngokusetyenziswa njenge-arhente yokunqanda ukukhenkceza kwiimoto nakwimizi-mveliso kuba inendawo yokukhenkceza esezantsi kunamanzi.

Ukuveliswa kwePolymer: I-1,3-PDO isetyenziselwa ukuveliswa kweepolymers ze-biodegradable ezifana ne-polytrimethylene terephthalate (PTT).Ezi biopolymers zinezicelo kwiilaphu kunye nokupakishwa.

1,2-Propanediol:

I-1,2-propanediol, eyaziwa ngokuba yipropylene glycol, ine-chemical formula C3H8O2 nayo.Umahluko ophambili kukuba amaqela ayo amabini e-hydroxyl abekwe kwiiathom zekhabhoni ezikufuphi ngaphakathi kwimolekyuli.

Iipropati kunye nezicelo ze-1,2-Propanediol (Propylene Glycol):

I-Antifreeze kunye ne-Deicing Agent: I-Propylene glycol isetyenziswa ngokuqhelekileyo njenge-antifreeze kwinkqubo yokutya, ukufudumeza kunye nokupholisa.Ikwasetyenziswa njenge agent deicing kwinqwelomoya.

Humectant:Isetyenziswa kwiimveliso ezahlukeneyo zokuthambisa kunye nokhathalelo lomntu njenge humectant ukugcina ukufuma.

Ukongezwa kokutya:Ipropylene glycol ihlelwa “njengesaziwa ngokubanzi njengekhuselekile” (GRAS) yi-US Food and Drug Administration (FDA) kwaye isetyenziswa njengesongezo sokutya, ngokuyintloko njengomthwali weencasa kunye nemibala kwishishini lokutya.

Amachiza:Isetyenziswa kwimixube ethile yamachiza njengesinyibilikisi kunye nesithwali samachiza.

Isishwankathelo, umahluko ophambili phakathi kwe-1,3-propanediol kunye ne-1,2-propanediol ilele kulungiselelo lwamaqela abo e-hydroxyl ngaphakathi kwesakhiwo se-molecular.Lo mahluko wesakhiwo ukhokelela kwiipropati ezihlukeneyo kunye nezicelo ezahlukeneyo zezi diols zimbini, kunye ne-1,3-propanediol esetyenziswa kwi-solvents, i-antifreeze, kunye ne-biodegradable polymers, ngelixa i-1,2-propanediol (propylene glycol) ifumana izicelo kwi-antifreeze, ukutya, izimonyo. , kunye namayeza.