Electrical Behaviour and Spherulites Morphology of HDPE/PP Polyblends with HDPE as Base Material  

作　　者：Prakash Chandra Sahoo Rabiranjan Murmu Sarat Chandra Patra Chiranjit Dutta Harekrushna Sutar 

机构地区：[1]Chemical Engineering Department, Indira Gandhi Institute of Technology, Sarang, India [2]Chemical Engineering Department, National Institute of Technology, Trichy, India [3]Chemical Engineering Department, Jadavpur University, Kolkata, India

出　　处：《Materials Sciences and Applications》2018年第10期837-843,共7页材料科学与应用期刊（英文）

摘　　要：Polymer composites of virgin high density poly ethylene (HDPE) and virgin polypropylene (PP) are prepared. PP of weight% of 20, 30 and 50 are reinforced to HDPE in the form of pellets. They are converted into raw polymer sheets using a two roll milling machine. The prepared raw sheets have undergone compression moulding to fabricate polymer sheets to study electrical properties like dielectric strength, surface resistivity and volume resistivity at atmospheric temperature and pressure. Result shows dielectric strength and volume resistivity decreases with addition of PP to HDPE, whereas surface resistivity increases. Crystal growth rate is observed using a cross polarised microscope (PLM). The microscopy results reveal, the PP crystallizes faster than HDPE and the growth rate declines for the polyblend;showing non-uniform and hazy spherulitic structure.Polymer composites of virgin high density poly ethylene (HDPE) and virgin polypropylene (PP) are prepared. PP of weight% of 20, 30 and 50 are reinforced to HDPE in the form of pellets. They are converted into raw polymer sheets using a two roll milling machine. The prepared raw sheets have undergone compression moulding to fabricate polymer sheets to study electrical properties like dielectric strength, surface resistivity and volume resistivity at atmospheric temperature and pressure. Result shows dielectric strength and volume resistivity decreases with addition of PP to HDPE, whereas surface resistivity increases. Crystal growth rate is observed using a cross polarised microscope (PLM). The microscopy results reveal, the PP crystallizes faster than HDPE and the growth rate declines for the polyblend;showing non-uniform and hazy spherulitic structure.

关 键 词：Polymer BLEND ELECTRICAL Properties CRYSTALLIZATION MORPHOLOGY 

分 类 号：O6[理学—化学]