Preparation and characteristics of Aziridine-Benzoguanamine-Urea-Melanmine-Formaldehyde resins

4th International Conference on Advanced Composite Materials and Manufacturing Engineering 2017

材料科学;化学

Li, Wenhuan^1 ; Xu, Jie^1 ; He, Xingwei^1 ; Zhang, Jingjie^1 ; Zong, Enmin^2 ; Liu, Xiaohuan^1 ; Fu, Shenyuan^1

School of Engineering, Natl. Engineering and Technology Research Center of Wood-based Resources Comprehensive Utilization, Zhejiang Agriculture and Forestry University, Hangzhou Lin'an

311300, China^1

Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation, Taizhou University, Taizhou

318000, China^2

关键词: Characteristic absorption;    Crystallinities;    Curing reactions;    Hydroxyl groups;    Limited oxygen index;    Moisture adsorption;    Strength and elongations;    Structure characteristic;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/207/1/012015/pdf
DOI  :  10.1088/1757-899X/207/1/012015

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

In this study, the effect of Aziridine (AZ) addition on the properties of the BG-MF and BG-U-MF resin, such as the mechanical strength, tensile strength, moisture adsorption, and limited oxygen index, were studied in details. The best performance was obtained for modified resins with 2 wt. % added AZ. The structure characteristics of the modified MF resins were investigated using Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD). It was found that the characteristic absorption peak of the hydroxyl group and the ring of the three triazine group was significantly reduced, which indicated that the addition of aziridine was beneficial to the curing reaction. It could be seen that the effect of the addition of aziridine on the crystallinity of BG15% modified resin was not obvious, but the crystallinity of BG15%+U20% modified resin was reduced. The tensile strength and elongation at break increased after the addition of 2% aziridine, and resistance to burning and boiling water were also improved.