研究了引入戊二醛对单宁酸-壳聚糖薄膜性能的影响。利用傅里叶变换红外光谱仪分析共混物分子结构间的相互作用，利用热重分析仪考察薄膜的热稳定性，并研究了戊二醛的加入对薄膜溶失率、溶胀性和力学性能的影响。结果表明，戊二醛的加入增加了单宁酸与壳聚糖之间的交联作用，改善了薄膜的热稳定性，增加了薄膜的交联程度，并减小了薄膜的溶失率和溶胀率。

The effect of the addition of glutaraldehyde on the performance of tannic acid-chitosan film is studied.The interaction between the molecular structures of the blended substances is analyzed by means of Fourier transform infrared spectroscopy (FT-IR).Thermal stability of the film is investigated by thermogravimetry.Influences of the addition of glutaraldehyde on the dissolution rate, swelling performance and mechanical properties of the film are studied.The results show that glutaraldehyde added increases the crosslinking effect between tannic acid and chitosan, improves the thermal stability of the film, increases the crosslinking degree, and reduces the dissolution rate and swelling rate.

徐然(1991-),男,硕士研究生,研究方向为污水处理高分子复合材料,jungle070858@126.com