Propylene oxideyog cov kua tsis muaj xim thiab pob tshab nrog cov mis molecular ntawm C3H6O. Nws yog soluble hauv dej thiab muaj qhov kub ntawm 94.5 ° C. Propylene oxide yog cov tshuaj reactive tshuaj uas tuaj yeem ua rau dej.
Thaum propylene oxide hu rau dej, nws dhau los ua cov tshuaj tiv thaiv hydrolysis los tsim propylene glycol thiab hydrogen peroxide. Qhov sib npaug ntawm cov tshuaj tiv thaiv yog raws li nram no:
C3H6O + H2O → C3H8O2 + H2O2
Cov txheej txheem tshuaj tiv thaiv yog exothermic, thiab cov hluav taws xob tsim hluav taws xob tuaj yeem ua rau qhov kub thiab txias ntawm cov tshuaj kom nce sai. Tsis tas li ntawd, propylene oxide kuj yooj yim rau polymerize nyob rau hauv lub xub ntiag ntawm catalysts los yog tshav kub, thiab cov tsim polymers yog insoluble nyob rau hauv dej. Qhov no tuaj yeem ua rau theem sib cais thiab ua rau cov dej sib cais los ntawm cov tshuaj tiv thaiv.
Propylene oxide yog siv los ua cov khoom siv raw rau kev sib txuas ntawm ntau yam khoom, xws li surfactants, lubricants, plasticizers, thiab lwm yam. Nws kuj yog siv los ua cov kuab tshuaj rau cov tshuaj ntxuav, textile auxiliaries, tshuaj pleev ib ce, thiab lwm yam. Thaum siv los ua raw khoom rau synthesis, propylene oxide yuav tsum tau ua tib zoo khaws cia thiab thauj kom tsis txhob muaj kev sib cuag nrog dej kom tsis txhob muaj kev phom sij rau kev nyab xeeb.
Tsis tas li ntawd, propylene oxide kuj tseem siv rau hauv kev tsim cov propylene glycol, uas yog ib qho tseem ceeb nruab nrab ntawm kev tsim cov polyester fiber, zaj duab xis, plasticizer, thiab lwm yam. Cov txheej txheem ntawm propylene glycol yog siv cov propylene oxide ua raw khoom, uas tseem yuav tsum tau tswj nruj me ntsis hauv cov txheej txheem tsim khoom kom tsis txhob muaj kev sib cuag nrog dej kom ntseeg tau tias muaj kev nyab xeeb.
Hauv cov ntsiab lus, propylene oxide tuaj yeem cuam tshuam nrog dej. Thaum siv propylene oxide ua raw khoom rau kev sib txuas los yog hauv cov txheej txheem tsim khoom, nws yog ib qho tsim nyog yuav tsum tau ua tib zoo saib xyuas nws txoj kev ruaj ntseg thiab kev thauj mus los kom tsis txhob muaj kev sib cuag nrog dej thiab muaj peev xwm muaj kev nyab xeeb.
Post lub sij hawm: Feb-26-2024