Effect of Waste Tire Rubber Powder on Vibration-reduction Behavior of Wood-Plastic Composite
Waste tire rubber (WTR) powder with different mesh type (60 or 80 mesh) after alkali activation was mixed in wood flour (WF) treated with a compatibilizer,the mixture after oven-dried was gradually filled into thermoplastic high-density polyethylene (HDPE) or polypropylene (PP) base (WTR/WPC) through hot-press molding process.Damping behaviors of HDPE-based and PP-based WTR/WPC strips with 4 different WTR fractions were studied by impulse-agitated testing and half-power bandwidth identification method.Results reveal,WTR incorporation after surface grafting modification has positive on the vibration-reduction behavior of WTR/WPC,and the increment of its loss factor (tanδ) arrives to the maximal value at 10% WTR concentration,with respect to the reference.This mainly attributes to the deformation capacity of elastic but flexible WTR and good interlayer sandwich friction between flexible WTR,rigid WF,and flexible plastic base.Furthermore,the coarse WTR (60 mesh) has more significant effect on the improvement of tanδ of relatively flexible HDPE-based WPC than that of rigid PP-based WPC (69.7% in HDPE base,61.1% in PP base),especially at relatively low WTR fraction.
Wood-plastic composite (WPC) chemical modification waste tire rubber (WTR) powder damping testing and identification interfacial friction
Luo Jianlin Li Qiuyi Gao Song Sun Shengwei Su Yang
School of Civil Engineering, Qingdao Technological University, Qingdao, 266033 China School of Civil Engineering, Qingdao Technological University, Qingdao, 266033 China; School of Civi School of Civil Engineering, Qingdao Technological University, Qingdao, 266033 China; School of Mate
国际会议
上海
英文
90-90
2012-10-19（万方平台首次上网日期，不代表论文的发表时间）