The synthesis and characterization of Bis- (biguanide-p-phenyl) methane

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

材料科学;化学

Peng, Yongli^1 ; Pi, Zhenglin^1

School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan, China^1

关键词: Curing temperature;    Dicyandiamide;    Distilled water;    Nuclear magnetic spectroscopies;    Orthogonal experiment;    Preparation technology;    Reaction temperature;    Synthesis and characterizations;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/207/1/012028/pdf
DOI  :  10.1088/1757-899X/207/1/012028

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

To decrease the curing temperature of epoxy resin with dicyandiamide, a new kind of modified dicyandiamide curing agent was prepared with daimio diphenyl methane and dicyandiamide as raw materials, distilled water as solvent and hydrochloric acid as a catalyst. The optimum preparation technology of bis-(biguanide-p-phenyl) methane was studied by orthogonal experiments of three factors and three levels. The results show that the yield of bis-(biguanide-p-phenyl) methane reaches to 85.12% at reaction time of 4h, reaction temperature of 120 °C, mole ratio of 1:2.15. The structures of the compounds were analysed and confirmed by the Infrared spectroscopy and Hydrogen nuclear magnetic spectroscopy. The product is pure without by-products by this way and the modified dicyandiamide had higher reactivity than unmodified dicyandiamide.