PP/纳米有机高岭土复合材料的制备及性能

Preparation and Properties of Polypropylene/Nano-organclay Kaolinite Intercalation Compound

以二甲基亚砜(DMSO)改性的高岭土作前躯体,采用熔融插层法制备聚丙烯(PP)/纳米有机高岭土复合材料。采用FTIR、XRD、SEM等方法对其结构与形态进行表征,结果表明:聚丙烯已成功进入到高岭土片层间,层间距扩大到1.123 nm,插层率为73%;性能测试结果表明:改性高岭土的加入在不同程度上提高了PP的冲击性能和热性能。

PP/Nano-organically kaolin compound was prepared through the melt intercalation method by using kaolinite/ dimethyl sulphoxide as intercalation precursor. The intercalation compound was characterized by the X-ray diffraction （XRD） , Fourier transform infrared spectroscopy （FTIR） , thermogravimetric/differential thermal analysis （TG-DTA） , scanning electron microscopy （SEM）. The results showed that the spacing of layers of the PP/kaolinite intercalation compound was about 1. 128 nm,the intercalation ratio reached 73 % approximately,FTIR results indicated that the new bond were formed between the PP and the inner surface hydroxyl of kaolinite. The impact strength and thermal stability of intercalation compound were improved as the content of organically kaolin was increased.