【摘要】 将梅花电气石用作聚对苯二甲酸丁二醇酯(PBT)回收料的填充改性剂,制成梅花电气石/PBT复合材料。研究了不同梅花电气石含量对PBT回收料热变形温度和负离子释放性能的影响,并利用电子显微镜对梅花电气石粉体和梅花电气石改性PBT回收料的断面形貌进行观察。研究表明,梅花电气石存在着类似梅花状的微观结构,其粉体微粒易团聚在一起形成大致为0.6μm的微粒簇,电气石颗粒均匀地分散在PBT基体中,且界面结合性能良好,电气石的加入提高了PBT的热变形温度和负离子释放能力,当梅花电气石质量分数为8%时,负离子平均释放量达到了1458个/cm~3。更多还原

【Abstract】 Plum-blossom tourmaline/PBT composites were prepared by using plumblossom tourmaline as the filling modifier of PBT recycled materials.The effect of different percent composition on heat distortion temperature and anion releasing performance of PBT recycled materials was studied.Plum-blossom tourmaline powder and fracture surface of plum-blossom tourmaline/PBT were observed by electron microscope. The results show that plum-blossom tourmaline powder particalate containing pulm-like microstructure,particulate can easily gather together and form roughly 0.6μm particle cluster,tourmaline evenly disperses in PBT matrix and has good interface combining performance.The heat distortion temperature and anion releasing ability of PBT are improved by adding tourmaline.When the mass ratio of tourmaline is 8%,anion average releasing quantity achieves 1 458 ions/cm~3.更多还原