固态热拉伸技术制备聚丁二酸丁二醇酯/微纤化纤维素复合材料

Preparation of polybutylene succinate/microfibrillated cellulose composite by solid state hot stretching

通过固态热拉伸技术成功制备了高性能的聚丁二酸丁二醇酯/微纤化纤维素复合材料,并分析了复合材料结构变化、界面黏结以及晶体取向对力学性能的影响。由于加工过程中纤维表面形成界面结晶,提升了复合材料的界面黏结。此外,由于拉伸过程促进了纤维素以及聚丁二酸丁二醇酯片晶的取向,从而促使复合材料力学性能的进一步提升。此过程简单易操作,适用高分子种类多,有助于启发学生灵活运用各类高分子加工手段制备高性能复合材料。

Polybutylene succinate/micro-fibrillated cellulose composites with high performance are prepared by solid-state hot stretching, and the effect of structure, interfacial adhesion and lamellar orientation on the mechanical property of the composites are investigated. The interfacial crystallization around the fiber during processing has improved the interfacial adhesion of composites. Additionally, stretching has facilitated the orientation of cellulose and polybutylene succinate lamellar, which has further improved the mechanical property of composites. This process is simple, easy to operate and available for various polymers, which is beneficial for inspiring students to flexibly use various polymer processing methods to prepare high-performance composites.