Synthesis and Characterization of a New Phosphorus-Containing Curing Agent PPDTA

Abstract:

A new phosphorus-containing flame-retardant curing agent PPDTA was synthesized from phenylphosphonic dichloride (PPD) and 3-amino-1,2,4-triazole (TA) in tetrahydrofuran solvent to improve the flame retardancy of epoxy resin. The structure of the compound was analyzed and confirmed by infrared spectroscopy. The effects of reaction time, reaction temperature and ratio of reactants on yield were studied by using three-factor three-level orthogonal experiment. The results show that the yield of PPDTA can reach 86.4%, when the reaction time is 10h, reaction temperature is 70 °Cand the molar ratio of TA to PPD is 2.2:1.

• Periodical: Materials Science Forum (Volume 953)
• Pages: 185-190
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.953.185
• Online since: May 2019
• Authors: Yong Li Peng, Ni An Zhuo*, Can Zhang
• Keywords: 3-Amino-1,2,4-Triazole, Curing Agent, Flame Retardant, Phenylphosphonic Dichloride

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