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Damping Properties of Ethylene-Vinyl Acetate Rubber/Polylactic Acid Blends
Key Laboratory of Rubber-Plastics, Ministry of Education/Shandong Provincial Key Laboratory of Rubber and Plastics, Qingdao University of Science and Technology, Qingdao, China
Key Laboratory of Rubber-Plastics, Ministry of Education/Shandong Provincial Key Laboratory of Rubber and Plastics, Qingdao University of Science and Technology, Qingdao, China
Key Laboratory of Rubber-Plastics, Ministry of Education/Shandong Provincial Key Laboratory of Rubber and Plastics, Qingdao University of Science and Technology, Qingdao, China
- 1 Key Laboratory of Rubber-Plastics, Ministry of Education/Shandong Provincial Key Laboratory of Rubber and Plastics, Qingdao University of Science and Technology, Qingdao, China
- 2 Key Laboratory of Rubber-Plastics, Ministry of Education/Shandong Provincial Key Laboratory of Rubber and Plastics, Qingdao University of Science and Technology, Qingdao, China
- 3 Key Laboratory of Rubber-Plastics, Ministry of Education/Shandong Provincial Key Laboratory of Rubber and Plastics, Qingdao University of Science and Technology, Qingdao, China
Journal of Materials Science and Chemical Engineering·Volume 04 (2016)·Pages 15–22·Published 9 March 2016·DOI10.4236/msce.2016.43003
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Abstract
In this research, ethylene-vinyl acetate rubber (EVM)/polylactic acid (PLA) = 80/20 by weight blend was compounded with silica in a Haake torque rheometer. The effects of hindered phenol (AO-60), super branched polyol, petroleum resin C9, polyvinyl chloride (PVC) and acrylic rubber (ACM) on the damping properties of blends were investigated by dynamic mechanic analyzer (DMA). The results showed that 20 phr super branched polyol significantly increased the damping factor of PLA to widen the effective damping temperature range from 42.1 ℃ to 102.5 ℃ . 15 phr AO-60 and 10 phr petroleum resin C9 both dramatically raised the blend’s damping factor to broaden the effective damping temperature range to 98.0 ℃ and 102.6 ℃ , respectively. ACM and PVC are compatible with EVM, and both improved the damping properties of EVM/PLA blends.
KeywordsDMAEVM/PLADampingOrganic Hybrid
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