Isoconversional models toward the curing kinetics of self-healable epoxy resin TGDDM and acid anhydride

doi:10.1002/app.52718

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	Isoconversional models toward the curing kinetics of self-healable epoxy resin TGDDM and acid anhydride
	Ma, Zhihang 1; Wang, Xiao 1,2; Li, Junru 1; Li, Xinlin 1; Zhang, Chuanwei 1; Zhang, Ruyi 1; Gu, Yan 1; Zhang, Pengfei 1
	2022-06-01
发表期刊	JOURNAL OF APPLIED POLYMER SCIENCE
ISSN	0021-8995
页码	15
摘要	The reaction process and curing mechanism of self-healable epoxy resin TGDDM and curing agent TA are complicated. In this paper, the curing reaction kinetic mechanism of the system is studied from the perspective of isoconversional models. The nth-order model and autocatalysis model are established for observations of heat flow versus temperature and time during real-time curing obtained by non-isothermal differential scanning calorimetry (DSC), and evaluated under the standards of MSE, RMSE, and R-square. Under the guidance of least squares fitting, the pre-exponential factor (A), the activation energy (E-alpha), the order of models (n, m) and other parameters in f(alpha) of the model are mainly estimated by Kissinger method, Ozawa method, Malek method, and other methods. The correlation between the activation energy (E-alpha) of the reaction and the degree of conversion alpha also analyzed by the Flynn-Wall-Ozawa method. The chemical reaction of the system is studied by Fourier transform infrared (FTIR) and the self-healing property of the system is characterized by scanning electron microscope (SEM). It was found that the esterification reaction occurred in the system, and the realization of the self-healing property was also due to the transesterification reaction. In addition, the effect of the accelerator on the system is analyzed by the established autocatalysis model and dynamic mechanical analysis (DMA). The result shows that the addition of the accelerator does not change the curing reaction mechanism of the system, but accelerated the reaction process and increased the glass transition temperature.
关键词	differential scanning calorimetry kinetics theory and modeling thermal properties thermosets
DOI	10.1002/app.52718
收录类别	SCI
语种	英语
资助项目	Shandong Natural Science Foundation[ZR2019QEM010] ; Science and Technology Support Plan for Youth Innovation of Colleges in Shandong Province[DC2000000891]
WOS研究方向	Polymer Science
WOS类目	Polymer Science
WOS记录号	WOS:000804122100001
出版者	WILEY
引用统计
文献类型	期刊论文
条目标识符	http://ir.amss.ac.cn/handle/2S8OKBNM/61470
专题	中国科学院数学与系统科学研究院
通讯作者	Zhang, Pengfei
作者单位	1.Qingdao Univ, Qingdao 266071, Shandong, Peoples R China 2.Chinese Acad Sci, Acad Math & Syst Sci, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Ma, Zhihang,Wang, Xiao,Li, Junru,et al. Isoconversional models toward the curing kinetics of self-healable epoxy resin TGDDM and acid anhydride[J]. JOURNAL OF APPLIED POLYMER SCIENCE,2022:15.
APA	Ma, Zhihang.,Wang, Xiao.,Li, Junru.,Li, Xinlin.,Zhang, Chuanwei.,...&Zhang, Pengfei.(2022).Isoconversional models toward the curing kinetics of self-healable epoxy resin TGDDM and acid anhydride.JOURNAL OF APPLIED POLYMER SCIENCE,15.
MLA	Ma, Zhihang,et al."Isoconversional models toward the curing kinetics of self-healable epoxy resin TGDDM and acid anhydride".JOURNAL OF APPLIED POLYMER SCIENCE (2022):15.