Mechanical and rheological properties of compatibilized LDPE/wood flour compsites
LDPE-g-MAH copolymer is prepared through reactive extrusion,and then added to LDPE/wood flour (WF) composites.Effects of LDPE-g-MAH and WF content on mechanical and rheological properties of LDPE/WF composites were investigated by melt flow rate (MFR),mechanical testing and advanced rheometric expansion system (ARES).Results show that the tensile strength of the composites increase with the increase of WF content,but the MFR value and elongation at break decrease tremendously.The tensile strength,impact strength,complex modulus and viscosity of the composites all show an increase with the application of LDPE-g-MAH on account of the enhanced interfacial adhesion.The abrupt ascent in the complex modulus of the LDPE/WF (70/30) composite when the shear rate reaches a definite value may denote changes in the aggregation structure of WF in LDPE matrix.
LDPE Wood flour Composites Compatibilization
Weihua Luo Zhengliang Wang Xingxing Liu
School of Material Science and Engineering, Central South University of Forestry and Technology,Changsha, Hunan410004, China
国际会议
太原
英文
729-732
2012-06-23(万方平台首次上网日期,不代表论文的发表时间)