论文部分内容阅读
用钉挂预埋多功能界面活化剂(MFIAA)的PET(PET-MFIAA)与PP共混-挤出-拉伸,制备了PET-MFIAA/PP原位成纤复合材料,采用扫描电镜、偏光显微镜观察和力学性能测定的方法,研究了PET-MFIAA/PP的PET微纤形态、试样断面形态及力学性能,并与PET/PP、MFIAA/PET/PP两种原位成纤复合材料进行对比。结果表明:PET-MFIAA/PP PET微纤与PP基体间具有强的相互作用,PET微纤呈粗细不均匀、凹凸不平的异形形态及柔性界面等结构特征,形成了强的界面结合,其刚性、韧性均比纯PP明显提高,含7.00%MFIAA的PET-MFIAA/PP复合材料的拉伸屈服应力、弯曲弹性模量和悬臂梁缺口冲击强度分别达到了纯PP的1.04倍、1.23倍和1.79倍。
The PET-MFIAA / PP in-situ fiber-reinforced composites were prepared by using PET (MFIAA) and PP blends-extrusion-stretching with MFIAA. Microscopic observation and mechanical properties determination of PET-MFIAA / PP PET micro-fiber morphology, morphology and mechanical properties of the specimen, and PET / PP, MFIAA / PET / PP two in-situ fiber composites Compared. The results show that PET-MFIAA / PP PET microfibers have a strong interaction with PP matrix. PET microfibers are characterized by uneven thickness, irregular shape and flexible interface, forming strong interfacial bonding. The rigidity , The toughness of PP-PET / MFIAA / PP composites with 7.00% MFIAA were 1.04 times, 1.23 times and 1.79 times of that of pure PP, respectively. The tensile yield stress, flexural modulus and notched Izod impact strength of PET- Times