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http://dx.doi.org/10.7317/pk.2014.38.2.129

Effects of Recycled PP Content on the Physical Properties of Wood/PP Composites  

Ahn, Seong Ho (Department of Chemical Engineering, Chungbuk National University)
Kim, Dae Su (Department of Chemical Engineering, Chungbuk National University)
Publication Information
Polymer(Korea) / v.38, no.2, 2014 , pp. 129-137 More about this Journal
Abstract
In this study, the melt-mixing condition was optimized first to maximize the physical properties of a wood plastic composite (WPC) with recycled polypropylene (PP) and the effects of recycled PP content on the physical properties of the WPC were investigated. Mechanical properties of the WPC were measured by UTM and an izod impact tester and thermal properties were investigated by DSC, TGA and DMA. Fracture surfaces of the WPC were investigated by SEM. The optimized mixing condition of WPC with 50 wt% recycled PP of total PP was melt-mixing at $170^{\circ}C$ for 15 min at 60 rpm. With increasing the content of the recycled PP, the water absorption characteristics of the WPC increased and the thermal and mechanical properties decreased. However, the following was concluded from the analysis of all the physical properties; it was possible adding the recycled PP up to 50 wt% of total PP without a significant decrease in the performance of the WPC.
Keywords
wood plastic composite; wood flour; recycled polypropylene; mechanical properties; water absorption properties;
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