利用Genipin对再生丝素蛋白进行交联改性,并通过静电纺丝法制备交联的丝素蛋白纳米纤维膜.利用场发射扫描电镜、红外光谱仪、X射线衍射仪、热重分析仪以及拉力机等对其结构与性能进行表征与测试.结果表明,随着交联剂Genipin质量比的增加,交联度增加,静电纺丝素蛋白纳米纤维平均直径增大,标准偏差增大；Genipin交联对丝素蛋白纳米纤维结晶结构影响不大,但热性能提高；常温条件下,随着Genipin质量比从2％提高至15％,丝素蛋白纳米纤维膜的力学性能逐渐增强,质量比为10％时,其力学性能较好,拉伸强度和断裂应变分别为19.6 MPa和5.9％；随着试验温度从40℃升高到200℃,丝素蛋白纳米纤维膜的拉伸强度和断裂应变先增大然后减小,当试验温度为80℃时,其力学性能较好,拉伸强度和断裂应变分别为41.6 MPa和8.6％.
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