ʻO ka ʻokoʻa ma waena o 1,2-propanediol a me 1,3-propanediol i nā mea hoʻonaninani

ʻO ka propylene glycol kahi mea āu e ʻike pinepine ai i ka papa inoa o nā mea hoʻonaninani no ka hoʻohana ʻana i kēlā me kēia lā.Hoʻopili ʻia kekahi me 1,2-propanediol a me nā mea ʻē aʻe1,3-propanediol, no laila he aha ka ʻokoʻa?
ʻO ka 1,2-Propylene glycol, CAS No. 57-55-6, molecular formula C3H8O2, he mea hoʻoheheʻe kemika, hiki ke hui pū me ka wai, ethanol a me nā mea hoʻoheheʻe he nui.He wai viscous kala ʻole i ke ʻano maʻamau, aneane ʻaʻohe ʻala a ʻono iki i ka ʻala maikaʻi.
Hiki ke hoʻohana ʻia ma ke ʻano he mea hoʻomaʻemaʻe i nā mea hoʻonaninani, ka niho niho a me ke kopa me ka glycerin a i ʻole sorbitol.Hoʻohana ʻia ia ma ke ʻano he mea hoʻomaʻemaʻe a me ka pae ʻana i ka lauoho lauoho a ma ke ʻano he antifreeze agent.
1,3-Propyleneglycol, CAS No. 504-63-2, molecular formula C3H8O2, he colorless, odorless, paakai, hygroscopic viscous wai, hiki ke oxidized, esterified, miscible me ka wai, miscible i ka ethanol, etera.
Hiki ke hoʻohana ʻia i ka synthesis o nā ʻano lāʻau lapaʻau he nui, polyester PTT hou, pharmaceutical intermediates a me nā antioxidants hou.ʻO ia ka mea maka no ka hana ʻana i ka polyester unsaturated, plasticizer, surfactant, emulsifier a me ka emulsion breaker.
Loaʻa iā lāua ke ʻano molekala like a he isomers.
Hoʻohana ʻia ʻo 1,2-Propylene glycol ma ke ʻano he antibacterial agent a i ʻole ka mea hoʻolaha hoʻolaha i nā mea hoʻonaninani i nā kiʻekiʻe kiʻekiʻe.
Ma nā haʻahaʻa haʻahaʻa, hoʻohana maʻamau ia e like me ka moisturizer a i ʻole ke kōkua hoʻomaʻemaʻe.
Ma nā haʻahaʻa haʻahaʻa, hiki ke hoʻohana ʻia e like me ka pro-solvent no nā mea hana.
He ʻokoʻa loa ka ʻili a me ka palekana ma nā ʻokoʻa like ʻole.
Hoʻohana nui ʻia ʻo 1,3-Propylene glycol e like me ka solvent i nā mea hoʻonaninani.He mea hoʻoheheʻe polyol moisturizing ia e kōkua i nā mea hoʻonaninani e komo i loko o ka ʻili.
Loaʻa iā ia ka mana moisturizing kiʻekiʻe ma mua o glycerin, 1,2-propanediol a me 1,3-butanediol.ʻAʻohe ona paʻa, ʻaʻohe ʻano wela, ʻaʻohe pilikia hoʻonāukiuki.
ʻO nā ʻano hana nui o 1,2-propanediol:
1. Propylene oxide hydration ala;
2. Propylene pololei catalytic oxidation ala;
3. Keʻano hoʻololi Ester;4.glycerol hydrolysis synthesis method.
ʻO 1,3-Propylene glycol ka mea i hana nui ʻia e:
1. Acrolein aqueous ala;
2. Ethylene oxide ala;
3. Glycerol hydrolysis synthesis method;
4. Keʻano microbiological.
ʻOi aku ke kumukūʻai o 1,3-Propylene glycol ma mua o 1,2-Propylene glycol.1,3-PropyleneʻOi aku ka paʻakikī o ka glycol i ka hana ʻana a me ka haʻahaʻa haʻahaʻa, no laila ke kiʻekiʻe nei kona kumukūʻai.
Eia naʻe, ke hōʻike nei kekahi mau ʻike he 1,3-propanediol ka liʻiliʻi o ka hoʻonāukiuki a me ka ʻoluʻolu ʻole i ka ʻili ma mua o 1,2-propanediol, a hiki i ke kiʻekiʻe o ka ʻoluʻolu ʻole.
No laila, i nā makahiki i hala iho nei, ua hoʻololi kekahi mau mea hana i ka 1,2-propanediol me 1,3-propanediol i nā mea hoʻonaninani e hōʻemi i ka ʻeha e hiki mai i ka ʻili.
ʻAʻole hiki i ka 1,2-propanediol a i ʻole 1,3-propanediol ke kumu ʻole o ka ʻili, akā hiki ke kumu ʻia e nā kumu like ʻole.Ke hoʻonui nei ka manaʻo o ka poʻe no ke olakino olakino a me ka palekana, ʻo ka koi ikaika o ka mākeke e hoʻoikaika hou i nā mea hana e hoʻomohala i nā huahana ʻoi aku ka maikaʻi e hoʻokō i nā pono o ka hapa nui o nā mea aloha nani!