間氯過氧化苯甲酸熱分解動(dòng)力學(xué)及危險(xiǎn)性
發(fā)布時(shí)間:2018-03-03 03:09
本文選題:間氯過氧化苯甲酸(m-CPBA) 切入點(diǎn):熱分解 出處:《中國安全科學(xué)學(xué)報(bào)》2017年07期 論文類型:期刊論文
【摘要】:為研究固態(tài)間氯過氧化苯甲酸(m-CPBA)在非等溫和絕熱條件下的熱分解過程及其危險(xiǎn)性,分別采用差示掃描量熱儀(DSC)和絕熱加速量熱儀(ARC)試驗(yàn)研究m-CPBA的熱分解特征。通過熱重分析儀(TG)測量m-CPBA的初始分解溫度,用Kissinger法、Ozawa法和速率常數(shù)法計(jì)算活化能、指前因子和反應(yīng)級(jí)數(shù)等熱分解反應(yīng)動(dòng)力學(xué)參數(shù),并根據(jù)絕熱試驗(yàn)結(jié)果推算最大反應(yīng)速率到達(dá)時(shí)間(TMR_(ad))。結(jié)果表明:m-CPBA的初始分解溫度為94℃,且在熔融相變的同時(shí)發(fā)生熱分解放熱反應(yīng);其絕熱溫升為41.69℃,TMRad在8和24 h所對(duì)應(yīng)的絕熱溫度分別為54.7℃和50.9℃;因此,m-CPBA在貯存、運(yùn)輸和使用過程中需要嚴(yán)格控制溫度。
[Abstract]:In order to study the thermal decomposition process and its risk of solid m-CPBA under non-isothermal adiabatic conditions. The thermal decomposition characteristics of m-CPBA were studied by differential scanning calorimeter (DSC) and adiabatic accelerated calorimeter (ARC) respectively. The initial decomposition temperature of m-CPBA was measured by thermogravimetric analyzer (TG), and the activation energy was calculated by Kissinger method and rate constant method. The kinetic parameters of thermal decomposition reaction, such as preexponential factor and reaction order, are calculated according to the adiabatic test results, and the maximum reaction rate arrival time is calculated. The results show that the initial decomposition temperature of 10% m-CPBA is 94 鈩,
本文編號(hào):1559272
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