Optimization and Pyrolysis Kinetics of Waterborne Coatings Based on Saturated Polyester Resins and Totally Methyl Etherified Amino Resins

IF 2.7 3区化学 Q2 POLYMER SCIENCE

Journal of Applied Polymer Science Pub Date : 2025-01-24 DOI:10.1002/app.56717

Zhaoxian Che, Lidan Niu, Yuhan He, Xianliang Huang, Jiarong Shi, Shihan Xu, Hang Long, Jie Zheng, Xiao Xu

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引用次数: 0

Abstract

Amid the urgent call for the coatings industry to increase ecological awareness, a decisive shift toward environmentally friendly coatings is imperative. In this study, the L₉(3⁴) orthogonal experimental design is used to optimize the formula of the waterborne coating made from waterborne saturated (WS) polyester resins and totally methyl etherified amino resins. The composite resin coatings exhibit excellent properties under optimized conditions (resin solid content ratio 2:1, curing time 40 min, curing temperature 433 K). FTIR confirms the successful crosslinking between WS polyester and totally methyl etherified amino resin, and TGA shows four-stage thermal weight loss, with the most significant loss in the third stage (623–743 K). Pyrolysis kinetics at this stage, analyzed using Kissinger-Akahira-Sunose and Coats-Redfern method methods, reveal a three-dimensional diffusion mechanism with an activation energy of 215.25 kJ/mol and a pre-exponential factor of 6.83 × 10¹⁵ min⁻¹. This research enhances understanding and advancement of sustainable coating technologies for various industrial applications.

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基于饱和聚酯树脂和完全甲醚化氨基树脂的水性涂料的优化和热解动力学

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来源期刊

Journal of Applied Polymer Science 化学-高分子科学

CiteScore

5.70

自引率

10.00%

发文量

1280

审稿时长

2.7 months

期刊介绍： The Journal of Applied Polymer Science is the largest peer-reviewed publication in polymers, #3 by total citations, and features results with real-world impact on membranes, polysaccharides, and much more.