Kusiyana pakati pa 1,2-propanediol ndi 1,3-propanediol mu zodzoladzola

Propylene glycol ndi chinthu chomwe mumachiwona nthawi zambiri pamndandanda wa zodzoladzola zomwe zimagwiritsidwa ntchito tsiku ndi tsiku.Ena amalembedwa kuti 1,2-propanediol ndi ena ngati1,3-propanediol, ndiye pali kusiyana kotani?
1,2-Propylene glycol, CAS No. 57-55-6, formula ya maselo C3H8O2, ndi reagent yamankhwala, miscible ndi madzi, ethanol ndi zosungunulira zambiri za organic.Ndi madzi a viscous opanda mtundu omwe ali bwino, osanunkhiza komanso okoma pang'ono pafungo labwino.
Itha kugwiritsidwa ntchito ngati chonyowetsa muzodzola, mankhwala otsukira mano ndi sopo pamodzi ndi glycerin kapena sorbitol.Amagwiritsidwa ntchito ngati chonyowetsa komanso chowongolera mu utoto watsitsi komanso ngati antifreeze wothandizira.
1,3-Propyleneglycol, CAS No. 504-63-2, formula ya maselo ndi C3H8O2, ndi yopanda mtundu, yopanda fungo, yamchere, yamadzimadzi yotchedwa hygroscopic viscous, imatha kukhala oxidized, esterified, miscible ndi madzi, miscible mu ethanol, ether.
Itha kugwiritsidwa ntchito popanga mitundu yambiri yamankhwala, polyester yatsopano ya PTT, ma intermediates amankhwala ndi ma antioxidants atsopano.Ndizopangira zopangira poliyesitala wopanda unsaturated, plasticizer, surfactant, emulsifier ndi emulsion breaker.
Onse ali ndi mawonekedwe ofanana a molekyulu ndipo ndi ma isomer.
1,2-Propylene glycol imagwiritsidwa ntchito ngati antibacterial agent kapena wothandizira kulowa mu zodzoladzola pamagulu apamwamba.
Pamalo otsika, nthawi zambiri amagwiritsidwa ntchito ngati moisturizer kapena chithandizo choyeretsa.
Pazigawo zotsika, zitha kugwiritsidwa ntchito ngati pro-solvent pazinthu zogwira ntchito.
Kupsa mtima kwa khungu ndi chitetezo pamagulu osiyanasiyana ndizosiyana kwambiri.
1,3-Propylene glycol imagwiritsidwa ntchito makamaka ngati zosungunulira mu zodzoladzola.Ndi organic polyol moisturizing zosungunulira zomwe zimathandiza zodzoladzola zosakaniza kulowa pakhungu.
Lili ndi mphamvu zowonjezera zowonjezera kuposa glycerin, 1,2-propanediol ndi 1,3-butanediol.Alibe kukakamira, palibe kupsa mtima, ndipo alibe vuto lakupsa mtima.
Njira zazikulu zopangira 1,2-propanediol ndi:
1. Propylene oxide hydration njira;
2. Propylene mwachindunji chothandizira makutidwe ndi okosijeni njira;
3. Njira yosinthira Ester;4.glycerol hydrolysis synthesis njira.
1,3-Propylene glycol imapangidwa makamaka ndi:
1. Njira ya acrolein yamadzimadzi;
2. Ethylene oxide njira;
3. Glycerol hydrolysis synthesis njira;
4. Njira ya Microbiological.
1,3-Propylene glycol ndi yokwera mtengo kuposa 1,2-Propylene glycol.1,3-Propyleneglycol ndizovuta kwambiri kupanga ndipo zimakhala ndi zokolola zochepa, choncho mtengo wake udakali wapamwamba.
Komabe, zidziwitso zina zikuwonetsa kuti 1,3-propanediol imakhala yochepa kwambiri komanso imakhala yosasangalatsa pakhungu kuposa 1,2-propanediol, ngakhale kufika pamlingo wopanda vuto lililonse.
Choncho, m'zaka zaposachedwa, opanga ena asintha 1,2-propanediol ndi 1,3-propanediol muzodzoladzola zodzikongoletsera kuti achepetse kukhumudwa komwe kungachitike pakhungu.
Kupweteka kwapakhungu komwe kumayambitsidwa ndi zodzoladzola sikungayambitsidwe ndi 1,2-propanediol kapena 1,3-propanediol yokha, komanso kungayambitsenso zinthu zosiyanasiyana.Lingaliro la anthu la thanzi ndi chitetezo cha zodzikongoletsera likukulirakulira, kufunikira kwa msika kudzalimbikitsa opanga ambiri kupanga zinthu zabwinoko kuti zikwaniritse zosowa za ambiri okonda kukongola!