【作者】 肖国花； 唐欣磊； 彭懋；

【Author】 XIAO Guohua;TANG Xinlei;PENG Mao;MOE Key Laboratory of Macromolecular Synthesis and Functionalization,Department of Polymer Science & Engineering,Zhejiang University;

【机构】 高分子合成与功能构造教育部重点实验室,浙江大学高分子科学与工程学系；

【摘要】 <正>海藻酸钠（alginate）是一种由β-1,4-D甘露糖醛酸和α-1,4-D古洛糖醛酸交替结构组成的天然多糖。其来源广泛、价格低廉、无毒、具有良好的生物相容性、成膜性及可降解性等,有望部分取代以石油工业为基础的合成塑料,缓解白色污染^[1-2]。但单纯的海藻酸钠存在机械性能不足、抗水性较差等缺点,限制其应用^[3]。分子复合材料是指刚性大分子与柔性基体的混合物,其中刚性大分子作为增强剂,起增强作用^[4]。芳香族聚酰胺由于具有良好的机械性能和耐更多还原

【Abstract】 The blend films of sodium alginate(SA) and poly(2,2’-disulfonyl-4,4’-benzidine terephthalamide)(PBDT) were successfully prepared solution casting.The thermostability was studied by thermogravimetric analysis and the mechanical properties were investigated.With the increase of PBDT content,the thermostability was improved.The mechanical propertis of the blend films were also increased remarkably.Especially when the PBDT content was 15 wt%,the tensile strength was increased from 56.5±4.3MPa for pure SA to 94.0±6.1MPa.The results indicated that there was some strong interaction and good compatibility between the two water-soluble polymers.更多还原