Effect of Inorganic Fillers on Morphology and Mechanical Properties of PA66/POE-g-MAH/Filler Composites

• Published in: Journal of macromolecular science. Physics Vol. 50; no. 3; pp. 484 - 492
• Main Authors: Liu, Zhenhong, Wang, Jingjiang, Na, Haining, Yuan, Xiaoyan
• Format: Journal Article
• Language: English
• Published: Philadelphia, PA Taylor & Francis Group 01.02.2011; Taylor & Francis
• Subjects: Applied sciences; Composites; Exact sciences and technology; Fillers; Forms of application and semi-finished materials; maleic anhydride grafted poly(ethylene-co-octene); Mechanical properties; Morphology; nano-calcium carbonate; Nanocomposites; Nanomaterials; Nanostructure; polyamide 66; Polymer industry, paints, wood; Polymer matrix composites; talc; Talcs; Technology of polymers; Polymer blends; Talc; Olefin copolymer; nano-calcium carbonate; polyamide 66; Dispersion degree; Mechanical properties; Thermoplastic rubber; Dispersion reinforced material; Experimental study; Functional polymer; Composite material; Morphology; Calcium carbonate; Concentration effect; maleic anhydride grafted poly(ethylene-co-octene); Ethylene copolymer; Amide 66 polymer; Nanocomposite; Comparative study
• ISSN: 0022-2348; 1525-609X
• DOI: 10.1080/00222341003781119

Composites of polyamide 66 (PA66)/maleic anhydride grafted poly(ethylene-co-octene) (POE-g-MAH)/nano-calcium carbonate (nano-CaCO 3 ) and PA66/POE-g-MAH/talc were prepared by a one-step blending method. Morphology, crystallization, and mechanical properties of the composite materials were characterized with respect to different amounts of both inorganic fillers, nano-CaCO 3 and talc. Results showed that the tensile yield strength and tensile modulus of the composites were increased remarkably with introduction of nano-CaCO 3 or talc, but the notched impact strength was significantly lowered for both kinds of composites. Mechanical properties exhibited little difference between the PA66/POE-g-MAH/nano-CaCO 3 and PA66/POE-g-MAH/talc composites both for the different shapes and sizes of nano-CaCO 3 and the flake-like talc. Results of scanning electron microscopy exhibited agglomeration of the fillers. Differential scanning colorimetry analysis suggested that introduction of the inorganic fillers cause the crystallinity of PA66 to decrease by heterogeneous nucleation. The study provides a basic investigation on polymer/elastomer/rigid filler composites.