Propylene oxide, feem ntau hu ua PO, yog cov tshuaj lom neeg uas muaj ntau yam kev siv hauv kev lag luam thiab lub neej txhua hnub. Nws yog peb-carbon molecule nrog oxygen atom txuas rau txhua carbon. Cov qauv tshwj xeeb no muab propylene oxide nws cov khoom tshwj xeeb thiab ntau yam.
Ib qho ntawm feem ntau siv propylene oxide yog nyob rau hauv zus tau tej cov polyurethane, ib tug ntau yam thiab adaptable khoom. Polyurethane yog siv nyob rau hauv ntau yam kev siv, xws li rwb thaiv tsev, ua npuas ncauj ntim, upholstery, thiab coatings. PO kuj tseem siv los ua cov khoom pib rau kev tsim khoom ntawm lwm cov tshuaj, xws li propylene glycol thiab polyether polyols.
Hauv kev lag luam kws tshuaj, propylene oxide yog siv los ua cov kuab tshuaj thiab cov tshuaj reactant hauv kev tsim cov tshuaj ntau yam. Nws kuj yog siv los ua ib co-monomer hauv kev tsim cov polymerized ethylene glycol, uas yog siv los ua polyester fibers thiab antifreeze.
Ntxiv nrog rau kev siv hauv kev lag luam, propylene oxide muaj ntau yam kev siv hauv lub neej txhua hnub. Nws yog siv los ua cov khoom siv raw hauv kev tsim cov tshuaj ntxuav tsev, tshuaj ntxuav tes, thiab tshuaj tua kab mob. Nws kuj tseem siv rau hauv kev tsim cov khoom tu tus kheej xws li tshuaj zawv plaub hau, tshuaj pleev, thiab tshuaj pleev. PO yog cov khoom tseem ceeb hauv ntau cov khoom lag luam thiab cov khoom siv hauv tsev vim nws muaj peev xwm ua kom cov av thiab lwm yam tsis huv.
propylene oxide kuj tseem siv rau hauv kev tsim khoom noj khoom haus additives thiab flavorings. Nws yog siv los khaws thiab tsw ntau yam khoom noj, nrog rau dej haus, khoom noj, thiab khoom noj txom ncauj. Nws saj qab zib thiab preservative zog ua rau nws yog ib qho tseem ceeb muaj nyob rau hauv ntau yam khoom noj.
Txawm hais tias nws cov ntawv thov dav dav, propylene oxide yuav tsum tau ua tib zoo saib xyuas vim nws cov nplaim taws thiab muaj kuab lom. Kev raug PO ntau ntau tuaj yeem ua rau khaus ntawm qhov muag, tawv nqaij, thiab ua pa. Nws kuj yog carcinogenic thiab yuav tsum tau ceev faj heev.
Hauv kev xaus, propylene oxide yog cov tshuaj tseem ceeb uas ua lub luag haujlwm tseem ceeb hauv kev lag luam thiab lub neej txhua hnub. Nws cov qauv tshwj xeeb muab nws ntau yam hauv ntau daim ntawv thov, xws li los ntawm kev tsim cov polyurethane thiab lwm yam polymers mus rau cov tsev ntxhua khaub ncaws thiab khoom noj khoom haus additives. Txawm li cas los xij, nws yuav tsum tau ua tib zoo saib xyuas vim nws toxicity thiab flammability. Lub neej yav tom ntej zoo li ci ntsa iab rau propylene oxide raws li cov ntawv thov tshiab txuas ntxiv mus nrhiav pom, ua rau nws yog ib qho tseem ceeb hauv ntiaj teb cov tshuaj.
Post lub sij hawm: Feb-23-2024