Characterization of Isotactic Polypropylene/Talc Composites Prepared by Extrusion Cum Compression Molding Technique

作     者：Rahima Nasrin M. A. Gafur A. H. Bhuiyan 

作者机构：Department of Physics University of Barisal Barisal Bangladesh Pilot Plant & Process Development Centre Bangladesh Council of Scientific & Industrial Research (BCSIR) Dhaka Bangladesh Department of Physics Bangladesh University of Engineering and Technology (BUET) Dhaka Bangladesh 

出 版 物：《Materials Sciences and Applications》 (材料科学与应用期刊（英文）)

年 卷 期：2015年第6卷第11期

页      面：925-934页

学科分类：07[理学] 0703[理学-化学] 

主　　题：Isotactic Polypropylene Water Absorption Thermal Behavior Talcs 

摘      要：Extrusion-Compression molded isotactic polypropylene (iPP) composites containing 10 wt%, 20 wt%, 30 wt%, 40 wt% and 50 wt% of talc filler were studied by scanning electron microscopy (SEM), simultaneous thermal analysis (STA) and physical testing. The scanning electron microscope (SEM) micrographs of neat iPP and composites with 10 wt%, 20 wt%, 30 wt%, 40 wt% and 50 wt% talc content show that neat PP, 10 wt%, 20 wt%, and 30wt% talc composites surface is smooth in comparison to 40 wt% and 50 wt% talc composites. It is also observed that talc is dispersed uniformly in the matrix and this uniform dispersion is not decreased even with talc content as high as 30 wt% talc. The composites of 40 wt% and 50 wt% talc contain more crack, agglomerates or larger particles. Bulk density of the composites decreases with the increase of talc content. With the increase of percentage of talc and period of immersion, the water absorption (WA) increases. Thermal analyses indicate a considerable increase of thermal stability of the composites with filler addition.