纳米PA6、PP/SBS复合材料界面结构与性能

Structure and properties of Nano PA6、PP particles/SBS composite

采用磨盘型力化学反应器制备纳米尺寸的 PA6和 PP微粒 ,与 SBS复合制备纳米 PA6、PP/ SBS复合材料 ,用 TEM研究复合材料的界面结构并进行力学性能测试。经磨盘反应器制备的 PA6和 PP混合粒子 ,与 SBS的相容性得到改善 ,相界面结合良好 ,填充量在 6 % -1 0 %时 ,综合力学性能大幅度提高。随加工温度变化 ,PA6、PP相结构也发生变化 ,产生粘连并形成链状结构 ,力学性能进一步提高。

Nano polyamide6(PA6) and polypropylene(PP) particles were prepared by using the pan type milling equipment and were mixed with styrene-butadiene-styrene triblock copolymer(SBS) to produce PA6/PP/SBS composite. The interface structures of the composites were studied by TEM and the mechanical properties of the composites were determined. The nano PA6 and PP particles prepared by pan-milling show a good Compatibility and interphase with SBS. When the composites contain 4%-10% (wt) PA6 and PP particles, the mechanical properties of the composites enhance greatly. With the change of processing temperature, the nano PA6 and PP particles melt to form chain structure and the phase structures change obviously. The performances of the composites were promoted further.