O le 1,3-propanediol ma le 1,2-propanediol o mea fa'aletino uma ia e aofia i le vasega o diols, o lona uiga e lua hydroxyl (-OH) vaega galue.E ui lava i o latou faʻatulagaga tutusa, latou te faʻaalia meatotino eseese ma e iai ni faʻaoga maʻoti ona o le faʻatulagaina o nei vaega galue i totonu o latou fausaga mole.
1,3-propanediol, e masani ona faapuupuuina o le 1,3-PDO, o loʻo i ai le fua faʻasolosolo C3H8O2.E leai se lanu, leai se manogi, ma leai se tofo ile vevela ole potu.O le eseesega autu i lona fausaga o le lua hydroxyl vaega o loʻo i luga o carbon atoms e vavae ese e le tasi carbon atom.O lenei mea e tuʻuina atu ai le 1,3-PDO ona uiga faʻapitoa.
Meatotino ma Fa'aoga ole 1,3-Propanediol:
Solvent:1,3-PDO o se solvent aoga mo polar ma nonpolar compounds eseese ona o lona fausaga kemikolo tulaga ese.
Anti'aisa:E masani ona fa'aaogaina e fai ma sui fa'aantisaisa i mea tau ta'avale ma mea tau alamanuia ona o lo'o i ai se tulaga malulu maualalo nai lo le vai.
Polymer Production: 1,3-PDO o loʻo faʻaaogaina i le gaosiga o polymers biodegradable pei o le polytrimethylene terephthalate (PTT).O nei biopolymers e iai fa'aoga i 'ie ma afifiina.
1,2-Propanediol:
1,2-propanediol, e taʻua foi o le propylene glycol, o loʻo iai foʻi le vailaʻau vailaʻau C3H8O2.O le eseesega autu o ona vaega e lua o le hydroxyl o loʻo tu i luga o le kaponi e lata ane i totonu o le mole.
Meatotino ma Fa'aoga ole 1,2-Propanediol (Propylene Glycol):
Antifreeze ma Deicing Agent: O le propylene glycol e masani ona faʻaaogaina e avea o se faʻamaʻaisa i le gaosiga o meaʻai, faʻamafanafana, ma faʻamafanafana.E fa'aaogaina fo'i e fai ma sui e fa'atau ai va'alele.
Humectant:O lo'o fa'aaogaina i mea teuteu eseese ma le tausiga o le tagata lava ia e fai ma humectant e taofi ai le susu.
Mea'ai fa'aopoopo:O le propylene glycol o lo'o fa'avasegaina e le US Food and Drug Administration (FDA) e le US Food and Drug Administration (FDA) ma o lo'o fa'aaogaina e avea o se mea'ai fa'aopoopo, aemaise lava e ave ai mea'ai ma lanu i totonu o fale gaosi mea'ai.
Falema'i:O lo'o fa'aaogaina i nisi o vaila'au fa'afoma'i e fai ma so'o ma e ave ai vaila'au.
I se aotelega, o le eseesega autu i le va o le 1,3-propanediol ma le 1,2-propanediol o loʻo taoto i le faʻatulagaina o latou vaega hydroxyl i totonu o le fausaga mole.O lenei eseesega faʻavae e oʻo atu ai i meatotino maʻoti ma faʻaoga eseese mo nei diols e lua, faʻatasi ai ma le 1,3-propanediol o loʻo faʻaaogaina i solvents, antifreeze, ma polymers biodegradable, ae o le 1,2-propanediol (propylene glycol) e maua ai faʻaoga i le antifreeze, meaʻai, mea teuteu. , ma vaila'au.
Taimi meli: Sep-20-2023