%0 Journal Article %T Fatigue Performance of Wet and Dry Pulverized Wood Flour Reinforced PP Composites %A Hidetaka Nogami %A Hirokazu Ito %A Keiko Kagawa %A Koichi Goda %A Masaki Okamoto %A Md Minhaz-Ul Haque %A Shinji Ogoe %A Tomoyuki Ema %J - %D 2019 %R https://doi.org/10.3390/jcs3010020 %X Abstract In this paper, we exclusively studied the effects of dry and wet pulverization of different wood flours on the fatigue performance of polypropylene (PP)/wood flour (WF) composites. Wood flours obtained from cypress and Scots pine trees were pulverized in both dry and wet conditions at two different mill-plate gaps, 200 ¦Ìm and 350 ¦Ìm, and were used as reinforcement in PP matrices. Master batches of PP with different types of pulverized WF were compounded before processing in an extruder. The PP/WF composites of initial WF were also prepared for comparison. The prepared composites were analyzed by tensile and fatigue tests. It was found that the tensile properties of wood/polypropylene composites were affected by the pulverization of WF. Fatigue test results displayed that wet pulverization of short cypress flour had a negative effect on the fatigue life of PP/WF composites, while wet pulverization of long cypress flour and pine flour had a positive effect on the fatigue life of PP/WF composites. View Full-Tex %K wood¨Cplastic composite (WPC) %K fatigue behavior %K wood flour %K polypropylene %U https://www.mdpi.com/2504-477X/3/1/20