使用万能电子拉力试验机对聚氨酯样品的抗拉强度进行分析。生物基聚氨酯制备工艺:取乙酸丁酯和木质素或改性木质素,然后加入13 g羟基丙烯酸树脂,6.5 g固化剂,1 wt%有机锡催化剂,混合后25℃或30℃下固化得到。
The tensile strength of polyurethane samples was analyzed by universal electronic tensile testing machine. Preparation process of bio-based polyurethane: Take butyl acetate and lignin or modified lignin, then add 13 g hydroxyl acrylic resin, 6.5 g curing agent, 1 wt% organotin catalyst, and then cure at 25℃ or 30℃.