PREPARATION AND PROPERTY RESEARCH OF PP/ATTAPULGITE NANOCOMPOSITES
Wang Pinghua, Xu Guoyong, Song Gongpin (School of Chemical Engineering, Hefei University of Technology, Hefei 230009, China)
The attapulgite was dispersed in the toluene by stirring and ultrasonic vibration, and then was treated with a silane coupling agent KH-570. The surface structure of the attapulgite was characterized by means of X-ray photoeletron spectroscopy (XPS). Then the attapulgite was blended with PP via melt compounding to prepare PP/attapulgite nanocomposites. The effect of attapulgite on the crystalline behavior and mechnical properties was investigated. The result showed that the tensile strength reached the maximum at 10% attapulgite, while the impact strength reached the maximum at 2%. The compounding of application with PP didn't change the crystal form of PP. However, the processability was improved to some extent.