Effects of compatibilizers on the physico‐mechanical and foaming properties of polyproylene/wood‐fiber composites |
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| Authors: | Zhen‐Xiu Zhang Dian‐Long Chen Kyung‐hwan Kwak Zhen‐Xiang Xin Jin Kuk Kim |
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| Affiliation: | 1. Key Laboratory of Rubber‐Plastics, Ministry of Education, Shandong Provincial Key Laboratory of Rubber‐Plastics, Qingdao University of Science and Technology, , Qingdao, 266042 China;2. School of Nano and Advanced Materials Engineering, Gyeongsang National University, , Gyeongnam, Jinju, 660‐701 South Korea |
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| Abstract: | Polypropylene (PP)/wood‐fiber (WF) composites were prepared by intermeshing co‐rotating twin screw extruder, and microcellular closed cell PP/WF composite foams were prepared by using pressure‐quenched batch process method. The effect of various compatibilizers on the mechanical properties, morphology, crystallinity, rheological properties, and foamability of PP/WF composites were investigated. The results showed that PP/WF composite with addition of PP‐g‐MA as compatibilizer had the highest tensile strength, stiffness, and crystallinity, after foaming, it showed highest relative density and cell density, as well as the smallest cell size. Higher crystallinity of PP/WF composites, showed higher stiffness and higher relative density. J. VINYL ADDIT. TECHNOL., 19:250–257, 2013. © 2013 Society of Plastics Engineers |
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