IF 3.1
3区 化学
Q2 CHEMISTRY, APPLIED
引用次数: 0
摘要
二（2,4-二氯苯甲酰）过氧化物（DCBP）是一种重要的有机过氧化物（ops），常用作有机硅压敏胶带硫化过程中的硫化剂。由于存在双过氧键，DCBP 可能会发生分解并释放出大量能量。差示扫描量热法（DSC）研究了 DCBP 的热分解特性。从非等温实验数据中获得了初始分解温度（T0）、峰值温度（Tp）和分解热（ΔH）。自催化特性是通过 DCBP 等温实验确定的。根据 Kissinger、Flynn-Wall-Ozawa (FWO)、Starink 和 Malek 方法，对非等温实验得出的实验结果进行了动力学分析。计算了三个动力学因子，如表观活化能 Eα、前指数因子 A 和机理函数 f(α)。热力学参数如绝热条件下的最大温升速率（(dT/dt)max）和绝热温升（ΔTad）是通过加速速率量热法（ARC）获得的。计算了动力学因子。通过氧平衡法和自加速分解温度 (SADT) 对 DCBP 进行了风险评估，从而为 DCBP 在实际应用中提供安全指导。本文章由计算机程序翻译，如有差异，请以英文原文为准。
Thermal Decomposition Properties and Thermal Hazard Assessment of Di(2,4-dichlorobenzoyl) Peroxide (DCBP)
Di(2,4-dichlorobenzoyl) peroxide (DCBP), as an important organic peroxide (ops), is commonly used as a vulcanizing agent in the vulcanization process of organosilicon pressure-sensitive rubber belts. Due to double peroxide bonds, DCBP may incur decomposition and release much energy. The thermal decomposition characteristics of DCBP were investigated by differential scanning calorimetry (DSC). The initial decomposition temperature (T0), peak temperature (Tp), and heat of decomposition (ΔH) have been obtained from non-isothermal experimental data. The autocatalytic properties are determined by DCBP isothermal experiments. Based on the Kissinger, Flynn–Wall–Ozawa (FWO), Starink, and Malek methods, the kinetic analysis of the experimental results obtained from the non-isothermal experiments was carried out. The three kinetic factors, such as the apparent activation energy Eα, the pre-exponential factor A, and the mechanism function f(α), were calculated. The thermodynamic parameters such as the maximum temperature rise rate ((dT/dt)max) and adiabatic temperature rise (ΔTad) under adiabatic conditions were obtained by accelerated rate calorimetry (ARC). The kinetic factors were calculated. The risk assessment of DCBP was carried out through the oxygen balance method and Self-Accelerating Decomposition Temperature (SADT) to provide safety guidance for DCBP in practical applications.
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来源期刊
CiteScore
6.90
自引率
14.70%
发文量
251
审稿时长
2 months
期刊介绍：
The journal Organic Process Research & Development serves as a communication tool between industrial chemists and chemists working in universities and research institutes. As such, it reports original work from the broad field of industrial process chemistry but also presents academic results that are relevant, or potentially relevant, to industrial applications. Process chemistry is the science that enables the safe, environmentally benign and ultimately economical manufacturing of organic compounds that are required in larger amounts to help address the needs of society. Consequently, the Journal encompasses every aspect of organic chemistry, including all aspects of catalysis, synthetic methodology development and synthetic strategy exploration, but also includes aspects from analytical and solid-state chemistry and chemical engineering, such as work-up tools，process safety, or flow-chemistry. The goal of development and optimization of chemical reactions and processes is their transfer to a larger scale; original work describing such studies and the actual implementation on scale is highly relevant to the journal. However, studies on new developments from either industry, research institutes or academia that have not yet been demonstrated on scale, but where an industrial utility can be expected and where the study has addressed important prerequisites for a scale-up and has given confidence into the reliability and practicality of the chemistry, also serve the mission of OPR&D as a communication tool between the different contributors to the field.
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