木薯蚕丝/壳聚糖复合材料的制备及其性能研究Preparation of cassava silk/chitosan composites and their properties
陈玉梅,林海涛,岳新霞,赖恩平,黄继伟
摘要(Abstract):
将木薯蚕丝素蛋白溶液与不同质量分数的壳聚糖(chitosan, CS)溶液混合,制备出木薯蚕丝/壳聚糖复合多孔材料。运用傅里叶变换红外光谱仪(Fourier transform infrared spectrometer, FTIR)、X射线衍射仪(X-ray diffractometer, XRD)、热重分析仪(thermogravimetric analyzer, TGA)以及扫描电子显微镜(scanning electron microscope, SEM)对木薯蚕丝/壳聚糖复合材料结构及其性能进行测定,探究其结构和性能的变化。结果表明:低质量分数的壳聚糖能有效促进木薯蚕丝素蛋白基多孔材料的无规则卷曲和α-螺旋结构向β-折叠结构转变,其孔径分布在30~80μm范围内;质量分数为5%的壳聚糖与木薯蚕丝复合多孔材料的吸水溶胀率为1 126.5%。热重分析结果表明,随着壳聚糖质量分数升高,样品的热学性能也显现出提高的趋势。探究不同质量分数的壳聚糖对CSF/CS复合多孔材料的孔径、吸水溶胀率及其热学性能的影响,对于优化木薯蚕丝素蛋白基多孔材料的制备具有指导意义。
关键词(KeyWords): 木薯蚕丝纤维;壳聚糖;丝素蛋白;多孔材料
基金项目(Foundation): 国家自然科学基金项目(51963002)资助
作者(Author): 陈玉梅,林海涛,岳新霞,赖恩平,黄继伟
DOI: 10.16375/j.cnki.cn45-1395/t.2025.06.012
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