Qhov sib txawv tseem ceeb ntawm dipropylene glycol thiab propylene glycol yog dipropylene glycol yog sib xyaw ntawm peb isomers, whereas propylene glycol yog cov organic compound uas muaj ob pawg cawv.
Propylene glycol yog qhov tseem ceeb hauv kev tsim cov khoom siv polymer ntau. Dipropylene glycol, ntawm qhov tod tes, yog cov khoom siv los ntawm kev tsim cov propylene glycol. Txij li lawv ob leeg yog glycols, cov tebchaw no muaj qhov sib xws ntau dua li qhov sib txawv. Txawm li cas los xij, tsab xov xwm no tsom rau qhov sib txawv ntawm dipropylene glycol thiab propylene glycol.
YDipropylene Glycol yog dab tsi?
Dipropylene glycol yog qhov sib xyaw ntawm peb lub isomeric organic tebchaw thiab cov ntaub ntawv ua cov khoom lag luam ntawm propylene glycol ntau lawm. Peb lub isomers yog 4-oxa-2, 6-heptandiol, 2-(2-hydroxy-propoxy)-propan-1-ol, thiab 2-(2-hydroxy-1-methyl-ethoxy)-propan-1-ol. Nws tshwm sim raws li cov kua tsis muaj xim thiab tsis muaj ntxhiab tsw. Tsis tas li ntawd, nws muaj qhov kub kub kub thiab tsis muaj tshuaj lom. Txawm li cas los xij, peb tuaj yeem hais tias dipropylene glycol yog kev sib xyaw ntawm ob lub propylene glycol molecules uas tshwm sim hauv peb hom isomeric; Yog li, cov tshuaj formula yog C6H14O3
Daim duab 01: Isomers ntawm Dipropylene Glycol
Hauv kev tsim cov dipropylene glycol, cov khoom kawg muaj 20% propylene glycol thiab 1.5% dipropylene glycol. Thaum xav txog kev siv cov khoom sib xyaw no, nws yog ib qho tseem ceeb hauv kev tsim cov tshuaj tua kab, hydraulic nres kua, polyester resins, txiav roj, thiab lwm yam. Tsis tas li ntawd, cov compound no yog miscible nrog dej thiab ethanol. Nws cov ntsiab lus melting yog sib npaug ntawm cov propylene glycol thaum nws kub kub yog 236 ° C.
YPropylene Glycol yog dab tsi?
Propylene glycol yog cov organic compound uas muaj ob pawg cawv ua haujlwm hauv tib lub molecule. Nws cov tshuaj formula yog C3H8O2 Ntxiv mus, qhov sib xyaw no tshwm sim ua xim tsis muaj xim thiab ze li tsis muaj ntxhiab tsw. kua, tab sis nws muaj faintly qab zib. Nws yog soluble nyob rau hauv ntau cov kuab tshuaj, xws li dej, acetone, chloroform, thiab lwm yam. Lub melting point ntawm no compound yog -39 ° C thaum lub boiling point yog 188.2 ° C.
Peb tuaj yeem tsim cov khoom sib xyaw no los ntawm propylene oxide los ntawm cov tshuaj tiv thaiv hauv qab no;
Daim duab 02: Kev tsim cov propylene Glycol los ntawm Propylene Oxide
Ntawm no, cov tshuaj tiv thaiv no muab cov sib xyaw ua ke uas muaj 20% propylene glycol thiab 1.5% dipropylene glycol. Tsis tas li ntawd, thaum xav txog kev siv propylene glycol, nws yog ib qho tseem ceeb ua zaub mov preservative, raws li tus neeg saib xyuas cov dej noo nyob rau hauv cov tshuaj pleev ib ce, raws li hnyav, nyob rau hauv anti-freezing formulations, thiab lwm yam.
Qhov txawv ntawm Dipropylene Glycol thiab propylene Glycol
Dipropylene glycol yog ib qho khoom siv los ntawm kev tsim cov propylene glycol; Nws muab 20% propylene glycol thiab 1.5% dipropylene glycol. Qhov sib txawv tseem ceeb ntawm dipropylene glycol thiab propylene glycol yog tias dipropylene glycol yog sib xyaw ntawm peb isomers, hos propylene glycol yog cov organic compound uas muaj ob pawg cawv. Cov tshuaj formula ntawm dipropylene glycol yog C6H14O3 thaum cov tshuaj formula ntawm propylene glycol yog C3H8O2
Tsis tas li ntawd, dipropylene glycol yog qhov tseem ceeb hauv kev tsim cov tshuaj tua kab, hydraulic nres kua, polyester resins, txiav roj, thiab lwm yam, thaum lub propylene glycol muaj txiaj ntsig zoo li khoom noj khoom haus, ua tus neeg saib xyuas cov dej noo hauv cov tshuaj pleev ib ce. ntau lawm, raws li ib tug hnyav, nyob rau hauv anti-freezing formulations, thiab lwm yam.
Hauv qab infographic qhia txog qhov sib txawv ntawm dipropylene glycol thiab propylene glycol.
Summary – Dipropylene Glycol vs Propylene Glycol
Dipropylene glycol yog ib qho khoom siv los ntawm kev tsim cov propylene glycol; Nws muab 20% propylene glycol thiab 1.5% dipropylene glycol. Qhov sib txawv tseem ceeb ntawm dipropylene glycol thiab propylene glycol yog tias dipropylene glycol yog sib xyaw ntawm peb isomers, whereas propylene glycol yog cov organic compound uas muaj ob pawg cawv.
