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A Study on the Manufacturing and Mechanical Properties of the PA66/EPDM/PP Composites for Enhanced Low Temperature Fracture Resistances  

Lee, Tae-Sik (Department of Polymer Science and Engineering, Kumoh National Institute of Technology)
Yoon, Chang-Rok (Department of Polymer Science and Engineering, Kumoh National Institute of Technology)
Bang, Dae-Suk (Department of Polymer Science and Engineering, Kumoh National Institute of Technology)
Ahn, Dae-Young (Dae-Chang Enpla Co. Ltd.)
Kye, Hyoung-San (Department of Design & Materials, Mokwon University)
Shin, Kyung-Chul (Department of Polymer Science & Engineering, Chungju National University)
Publication Information
Elastomers and Composites / v.44, no.2, 2009 , pp. 164-174 More about this Journal
Abstract
PA66/EPDM/PP-g-MA and PA66/EPDM-g-MA/PP-g-MA composites were manufactured by a modular intermeshing twin screw extruder for enhanced low temperature impact resistance with different content of PP-g-MA. The results showed that composite containing 90 wt% of PA66, 8 wt% of EPDM-g-MA, and 2 wt% of PP-g-MA has a optimum value in the thermal and mechanical properties. The characteristics of the composites were analyzed by TGA, DSC, and SEM. From above results, we established that the low interfacial strength and the impact resistance at low temperature shown in a pre-existing PP/EPDM composite were enhanced by grafting with compatibilizer such as maleic anhydride. These results show the possibility of local manufacturing process and cost down with optimum screw configuration for best mixing quality in the twin screw extruder.
Keywords
PA66; EPDM; EPDM-g-MA; PP-g-MA; tensile strength; impact energy; flexual strength; FT-IR; DSC; TGA; SEM;
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