Organic peroxides chav kawm 5.2 xa mus rau ib pawg ntawm cov tshuaj uas muaj cov peroxide functional pawg (-OO-) bonded rau cov organic molecule. Lawv pom cov ntawv thov dav hauv ntau qhov kev lag luam, xws li plastics, elastomers, coatings, adhesives, thiab pharmaceuticals, vim lawv lub peev xwm los pib cov tshuaj tiv thaiv dawb radical polymerization, crosslink los yog kho cov polymers, qhib catalysts, thiab sterilize cov khoom siv kho mob.
Txawm li cas los xij, cov organic peroxides chav kawm 5.2 kuj tseem muaj npe nrov rau lawv cov khoom muaj kev phom sij, tshwj xeeb tshaj yog lawv cov thermal instability, uas ua rau lawv decompose sai thiab exothermically thaum raug tshav kub, kev sib txhuam, poob siab, los yog kis kab mob. Qhov no tuaj yeem ua rau hluav taws kub hnyiab, tawg, lossis tso tawm cov pa phem, ua rau muaj kev phom sij loj rau tib neeg kev noj qab haus huv, khoom vaj khoom tsev, thiab ib puag ncig.
Tsis ntev los no, muaj ntau qhov xwm txheej ntsig txog cov organic peroxides chav kawm 5.2 uas tau txais kev saib xyuas los ntawm cov xov xwm thiab cov pej xeem. Piv txwv li, thaum Lub Yim Hli 2020, kev tawg tshuaj lom neeg tau tshwm sim ntawm qhov chaw nres nkoj hauv Beirut, Lebanon, tua ntau dua 200 tus neeg thiab raug mob ntau txhiab leej. Kev tshawb nrhiav tau qhia tias qhov tawg yog tshwm sim los ntawm qhov hluav taws kub ntawm qhov ntau ntawm ammonium nitrate, uas tau khaws cia tsis raug ntawm ib sab ntawm lub tsev khaws khoom uas muaj ntau tons ntawm cov organic peroxides chav kawm 5.2. Lub tshav kub tsim los ntawm ammonium nitrate hluav taws ua rau lub decomposition ntawm cov organic peroxides, exacerbating kev puas tsuaj.
Hauv lwm qhov xwm txheej, thaum Lub Rau Hli 2021, hluav taws kub hnyiab tau tshwm sim ntawm cov nroj tsuag tshuaj hauv Rockton, Illinois, Tebchaws Asmeskas, qhov chaw khaws cov organic peroxides 5.2. Qhov hluav taws kub tau ntev li ob peb hnub, yuam kom khiav tawm ntawm cov neeg nyob ze thiab ua rau muaj teeb meem loj rau cov neeg tua hluav taws, raws li txhua zaus lawv mus txog ntawm qhov chaw, muaj kev tawg ntau dua. Qhov laj thawj ntawm qhov hluav taws kub tseem nyob rau hauv kev tshawb nrhiav, tab sis nws xav tias muaj feem xyuam nrog kev cia thiab tuav cov organic peroxides tsis raug.
Yog li ntawd, nws yog ib qho tseem ceeb rau kev lag luam tshuaj thiab cov koom haum tswj hwm kom ua raws li cov kev cai tsim nyog los xyuas kom muaj kev nyab xeeb ntawm kev tsim khoom, thauj, khaws cia, thiab siv cov organic peroxides chav kawm 5.2. Qee qhov kev ntsuas no suav nrog:
- Ua kom muaj kev ntsuam xyuas txaus ntshai thiab kev soj ntsuam kev phom sij txhawm rau txheeb xyuas cov peev txheej ntawm hluav taws xob lossis kev puas tsuaj, thiab ua raws li kev tsim nyog engineering, kev tswj hwm, thiab kev tiv thaiv tus kheej los tswj lossis txo lawv;
- Kev cob qhia thiab qhia cov neeg ua haujlwm, cov neeg ua haujlwm thaum muaj xwm txheej ceev, thiab cov pej xeem txog cov khoom thiab kev pheej hmoo ntawm cov organic peroxides chav kawm 5.2, thiab muab cov ntaub ntawv tsim nyog, cov cuab yeej, thiab cov cuab yeej siv los tswj lawv kom nyab xeeb;
- Tsim thiab ua raws li cov kev cai muaj zog, cov qauv, thiab cov lus qhia uas tsim cov kev xav tau thiab kev cia siab rau kev tsim khoom, kev sau npe, kev sim, ntim, thiab kev thauj mus los ntawm cov organic peroxides chav kawm 5.2, thiab ua raws li cov pov thawj scientific, kev coj ua zoo tshaj plaws, thiab cov neeg koom nrog cov tswv yim.
Thaum kawg, kev siv cov organic peroxides chav kawm 5.2 hauv kev lag luam tshuaj lom neeg yog ob-edged ntaj: nws muaj txiaj ntsig zoo tab sis tseem muaj kev pheej hmoo loj. Los ntawm kev siv cov tswv yim tswj kev pheej hmoo zoo thiab txhawb nqa kev coj noj coj ua ntawm kev nyab xeeb thiab lub luag haujlwm, peb tuaj yeem sau cov txiaj ntsig ntawm cov tshuaj muaj txiaj ntsig zoo no thaum txo qis lawv qhov cuam tshuam tsis zoo.