枣种子/聚烯同聚合物的热分解:机器学习CDNN,动力学和热力学
Zaid Abdulhamid Alhulaybi Albin Zaid1, Abdulrazak Jinadu Otaru1
1Department of Chemical Engineering, College of Engineering, King Faisal University, Al Ahsa 31982, Saudi Arabia.
Polymers
|February 13, 2025
概括
本研究通过实验和机器学习研究了枣子和聚烯复合材料的热分解. 结果显示温度显著影响分解,确定了第一阶反应机制.
科学领域:
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
- 环境科学 环境科学
背景情况:
- 关于塑料废物和农业残留物管理的日益严重的环境问题.
- 需要可持续的方法来利用农业废物并减少塑料污染.
研究的目的:
- 评估日种子 (DS),聚烯 (PP) 和它们的复合材料 (DS/PP) 的热分解.
- 应用机器学习 (卷积深度神经网络 - CDNN) 来预测热分解.
- 进行分解过程的动力学和热力学分析.
主要方法:
- 使用热重力测量分析 (TGA) 进行热解和联合热解的实验测量.
- 开发和应用机器学习CDNN模型用于数据预测 (R2~0.942).
- 使用Coats-Redfern,Flynn-Wall-Ozawa和Kissinger-Akahira-Sunose方法进行运动分析.
- 热力学分析以确定过程特征.
主要成果:
- 由于DS水分和有机物含量,PP的热稳定性在复合材料中下降.
- CDNN模型准确地预测了实验数据,温度被确定为关键影响参数.
- 一个第一阶反应机制被发现是最适合分解过程.
- 激活能量值在大约51到156kJ·mol-1.1之间.
- 动力补偿效应和热力学参数表明,这是一个内热,非自发,不那么混乱的过程.
结论:
- 枣子种子可以与聚烯共同 Pyrolyzed,影响其热稳定性.
- 机器学习 (CDNN) 为建模和预测热分解行为提供了一种可靠的方法.
- 了解动力学和热力学对于优化废物转化为能源或材料回收过程至关重要.
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