Propylene glycol chinhu chaunowanzo kuona mune zvinyorwa zvinyorwa zvezvizoro zvekushandisa kwemazuva ese.Mamwe akanyorwa se 1,2-propanediol uye mamwe se1,3-propanediol, saka musiyano upi?
1,2-Propylene glycol, CAS No. 57-55-6, molecular formula C3H8O2, ikemikari reagent, inosanganiswa nemvura, ethanol uye akawanda organic solvents.Icho chinhu chisina ruvara viscous fluid mune yakajairika mamiriro, inenge isinganhuhwi uye inotapira zvishoma pakunhuhwirira kwakanaka.
Inogona kushandiswa seyakanyorovesa mumiririri muzvizoro, mushonga wemazino uye sipo pamwe chete neglycerin kana sorbitol.Inoshandiswa seyekunyorova uye yekuyera mumiriri mudhayi dzebvudzi uye seantifreeze agent.
1,3-Propyleneglycol, CAS No. 504-63-2, molecular formula ndeye C3H8O2, isina ruvara, isina kunhuhwirira, ine salty, hygroscopic viscous liquid, inogona kuva oxidized, esterified, miscible nemvura, miscible mu ethanol, ether.
Inogona kushandiswa mukugadzirwa kwemarudzi akawanda emishonga, itsva polyester PTT, mishonga yepakati uye itsva antioxidants.Ndiyo mbishi yekugadzirwa kweunsaturated polyester, plasticizer, surfactant, emulsifier uye emulsion breaker.
Ose ari maviri ane imwechete molecular formula uye isomers.
1,2-Propylene glycol inoshandiswa se antibacterial agent kana mutsigiri wekupinda mukati mune zvizoro pamatunhu akakwirira.
Pakudzika kwakadzika, inowanzoshandiswa seyakanyorovesa kana yekuchenesa rubatsiro.
Pakudzika kwakadzika, inogona kushandiswa se pro-solvent yezvinhu zvinoshanda.
Kushatirwa kweganda uye kuchengeteka pazvikamu zvakasiyana zvakasiyana zvachose.
1,3-Propylene glycol inonyanya kushandiswa se solvent muzvizoro.Iyo organic polyol moisturizing solvent iyo inobatsira cosmetic ingredients kupinda mukati meganda.
Iine simba rakanyanya kunyorova kupfuura glycerin, 1,2-propanediol uye 1,3-butanediol.Haina kunamira, haina kunzwa kupisa, uye haina matambudziko ekushatirwa.
Nzira huru dzekugadzira 1,2-propanediol ndeidzi:
1. Propylene oxide hydration nzira;
2. Propylene yakananga catalytic oxidation nzira;
3. Ester exchange nzira;4.glycerol hydrolysis synthesis nzira.
1,3-Propylene glycol inonyanya kugadzirwa ne:
1. Acrolein aqueous nzira;
2. Ethylene oxide nzira;
3. Glycerol hydrolysis synthesis nzira;
4. Microbiological nzira.
1,3-Propylene glycol inodhura kupfuura 1,2-Propylene glycol.1,3-Propyleneglycol inonyanya kuoma kugadzira uye ine goho rakaderera, saka mutengo wayo uchiri mukuru.
Zvisinei, mamwe mashoko anoratidza kuti 1,3-propanediol isinganyanyi kushungurudza uye haina kugadzikana kune ganda kupfuura 1,2-propanediol, kunyange kusvika pamwero wekusagadzikana kwekuita.
Nokudaro, mumakore achangopfuura, vamwe vanogadzira vakatsiva 1,2-propanediol ne 1,3-propanediol muzvishongedzo zvekushongedza kuderedza kusagadzikana kunogona kuitika paganda.
Kusagadzikana kweganda kunokonzerwa nezvizoro hakugoni kukonzerwa ne1,2-propanediol kana 1,3-propanediol chete, asi inogonawo kukonzerwa nezvinhu zvakasiyana-siyana.Sezvo pfungwa yevanhu yehutano hwekushongedza uye chengetedzo ichidzika, kudiwa kwakasimba kwemusika kuchawedzera kukurudzira vagadziri vazhinji kugadzira zvigadzirwa zviri nani kuti zvizadzise zvinodiwa neruzhinji rwevanoda runako!
Nguva yekutumira: Sep-29-2021