Preparation and Properties of DCP-Crosslinked Biobased Polyamide

Abstract:

In this work, a new bio-based hybrid polyamide (BDIS) was prepared and was cross-linked by dicumyl peroxide (DCP) with dose ranging from 1 to 7%. The state of cure was observed in vulcameter, and the vulcanization condition was determined subsequently. The cross-linking efficiency of BDIS/DCP blends was assessed using torque, gel content measurements and infrared spectroscopy (FTIR). DCP dose below 1% was not sufficient to reach gelation. Over 1%, the gel content increased with increasing DCP dose. The cross-linked BDIS films exhibited enhanced toughness and mechanical properties compared to precursors. Optimal mechanical properties were obtained with concentration of about 5 wt % DCP. At higher doses, the tensile strength and the elongation at break were decreased due to scission reactions.

• Periodical: Advanced Materials Research (Volumes 634-638)
• Pages: 1037-1043
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.634-638.1037
• Online since: January 2013
• Authors: Xiao Xue, Qing Xiu Jia, Guo Liang Zhao
• Keywords: Biobased Polyamide, Crosslink Degree, Dicumyl Peroxide, Mechanical Property

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