应用化学2025，Vol.42Issue(8)：1096-1104,中插1-中插3,12.DOI:10.19894/j.issn.1000-0518.250080
左旋聚乳酸/右旋聚乳酸/玻璃纤维复合材料结晶、流变和力学性能
Crystallization,Rheological and Mechanical Properties of Poly(L-Lactic Acid)/Poly(D-Lactic Acid)/Glass Fiber Composites
摘要
Abstract
Poly(L-lactic acid)(PLLA)/poly(D-lactic acid)(PDLA)/glass fiber(GF)composites were prepared by melt compounding.The results showed that the SC crystallites could dramatically accelerate the crystallization rate of PLLA.The vicat softening temperature(VST)of PLLA/PDLA/GF composites couldreach 160℃,about 100℃ higher than that of neat PLLA.The introduction of GFs and PDLA enhanced rheological properties of composites.When PDLA content was increased to 5％(mass percent),the network of SC crystallites was formed.Mechanical testing reaveled that the Young's modulus and tensile strength of the composite with 1.6％(mass percent)GF were 28％and 93％,respectively,higher than neat PLLA.It is believed that the enhanced rheological and mechanical properties,as well as heat distortion resistance of the PLLA/PDLA/GF composites can contribute to the success of PLA composites in more biodegradable applications.关键词
左旋聚乳酸/右旋聚乳酸/玻璃纤维/复合材料/立构复合Key words
Poly(L-lactic acid)/poly(D-lactic acid)/Glass fiber/Composites/Stereocomplex分类
化学化工引用本文复制引用
孙海龙,王昊鹏,程宏达,李祎,韩常玉..左旋聚乳酸/右旋聚乳酸/玻璃纤维复合材料结晶、流变和力学性能[J].应用化学,2025,42(8):1096-1104,中插1-中插3,12.基金项目
吉林建筑大学2024年大学生创新创业训练计划项目(No.S202410191049)资助 Supported by the 2024 College Students' Innovation and Entrepreneurship Training Program of Jilin Jianzhu University(No.S202410191049) （No.S202410191049）
