An experimental investigation of properties of polyethylene reinforced with Al powders  

作　　者：Victoria CHIFOR Zafer TEKINER Mehmet TURKER Radu ORBAN 

机构地区：[1]Department of Materials Science and Technology,Faculty of Materials Science and Engineering,Technical University of Cluj-Napoca [2]Mechanical/Metallurgy Education Department,Faculty of Technical Education,Gazi University

出　　处：《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》2011年第8期583-592,共10页浙江大学学报（英文版）A辑（应用物理与工程）

摘　　要：Mechanical and physical properties, such as tensile strength, elongation at break, modulus of elasticity, Shore D hardness, melt flow rate (MFR), and electrical and thermal conductivities of composites with high density polyethylene matrix reinforced with Al powders were investigated experimentally. Measurements of the mechanical and physical properties were performed up to a reinforcing component concentration of 30% volume Al powder and compared with mathematical models from the literature. The obtained results have shown that experimental data were in good agreement with theoretical data. The ultimate tensile strength (UTS) and elongation at break decreased with increasing Al powder content, which was attributed to the intro-duction of discontinuities in the polymer structure, and modulus of elasticity increased with increasing Al content. The composite preparation conditions allowed the formation of a random distribution of metallic particles in the polymer matrix volume for system high density polyethylene-Al (HDPE-Al). There was a cluster formation of Al particles at higher Al contents in the polymer matrix. Electrical and thermal conductivity values of HDPE-Al composites were higher than pure HDPE values.Mechanical and physical properties, such as tensile strength, elongation at break, modulus of elasticity, Shore D hardness, melt flow rate （MFR）, and electrical and thermal conductivities of composites with high density polyethylene matrix reinforced with Al powders were investigated experimentally. Measurements of the mechanical and physical properties were performed up to a reinforcing component concentration of 30% volume Al powder and compared with mathematical models from the literature. The obtained results have shown that experimental data were in good agreement with theoretical data. The ultimate tensile strength （UTS） and elongation at break decreased with increasing Al powder content, which was attributed to the intro-duction of discontinuities in the polymer structure, and modulus of elasticity increased with increasing Al content. The composite preparation conditions allowed the formation of a random distribution of metallic particles in the polymer matrix volume for system high density polyethylene-Al （HDPE-Al）. There was a cluster formation of Al particles at higher Al contents in the polymer matrix. Electrical and thermal conductivity values of HDPE-Al composites were higher than pure HDPE values

关 键 词：Polymer composite Mechanical properties Melt flow rate(MFR) Thermal conductivity Electrical conductivity 

分 类 号：TB383.3[一般工业技术—材料科学与工程]