三种杂质影响下过氧化苯甲酰热分解行为的研究

IF 3.1 2区化学 Q2 CHEMISTRY, ANALYTICAL

Thermochimica Acta Pub Date : 2025-05-19 DOI:10.1016/j.tca.2025.180037

Zhen Xu, Wei Gao

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引用次数: 0

摘要

本文主要介绍过氧化苯甲酰（BPO）的热安全问题。采用C80微量热计和TG-FTIR-MS/TG-MS联用仪，研究了其纯物质及其与H2O、H2SO4和NaOH混合后的热分解行为和机理。比较分析了不同杂质和加热速率对过氧化苯甲酰热力学参数的影响。结果发现，杂质的加入导致了平均活化能Ea形式（BPO）>；Ea形式（BPONaOH）>；Ea形式（BPOH2O）>；Ea形式（BPOH2SO4）。适量的水、酸、碱能促进BPO的热分解，过量则能抑制BPO的热分解。不同添加剂的加入会改变BPO热分解的机理

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Study on thermal decomposition behavior of benzoyl peroxide under the influence of three impurities

This article focuses on the thermal safety issues of benzoyl peroxide (BPO). Using C80 microcalorimeter and TG-FTIR-MS/TG-MS combination instrument, the thermal decomposition behavior and mechanism of its pure substance and mixed with H₂O, H₂SO₄ and NaOH were studied. The influence of different impurities and heating rates on the thermodynamic parameters of benzoyl peroxide was compared and analyzed. It was found that the addition of impurities resulted in the average activation energy

\overline{E_{a}}

(BPO)>

\overline{E_{a}}

(BPONaOH)>

\overline{E_{a}}

(BPOH₂O)>

\overline{E_{a}}

(BPOH₂SO₄). Moderate amounts of water, acid, and base can promote the thermal decomposition of BPO, while excessive amounts can inhibit it. The mechanism of BPO thermal decomposition can be altered by the influence of different additives

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来源期刊

Thermochimica Acta 化学-分析化学

CiteScore

6.50

自引率

8.60%

发文量

210

审稿时长

40 days

期刊介绍： Thermochimica Acta publishes original research contributions covering all aspects of thermoanalytical and calorimetric methods and their application to experimental chemistry, physics, biology and engineering. The journal aims to span the whole range from fundamental research to practical application. The journal focuses on the research that advances physical and analytical science of thermal phenomena. Therefore, the manuscripts are expected to provide important insights into the thermal phenomena studied or to propose significant improvements of analytical or computational techniques employed in thermal studies. Manuscripts that report the results of routine thermal measurements are not suitable for publication in Thermochimica Acta. The journal particularly welcomes papers from newly emerging areas as well as from the traditional strength areas: - New and improved instrumentation and methods - Thermal properties and behavior of materials - Kinetics of thermally stimulated processes