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Electrical Behaviour and Spherulites Morphology of HDPE/PP Polyblends with HDPE as Base Material
Chemical Engineering Department, Indira Gandhi Institute of Technology, Sarang, India
Chemical Engineering Department, Indira Gandhi Institute of Technology, Sarang, India
Chemical Engineering Department, Indira Gandhi Institute of Technology, Sarang, India
Chemical Engineering Department, National Institute of Technology, Trichy, India
Chemical Engineering Department, Jadavpur University, Kolkata, India
- 1 Chemical Engineering Department, Indira Gandhi Institute of Technology, Sarang, India
- 2 Chemical Engineering Department, Indira Gandhi Institute of Technology, Sarang, India
- 3 Chemical Engineering Department, Indira Gandhi Institute of Technology, Sarang, India
- 4 Chemical Engineering Department, National Institute of Technology, Trichy, India
- 5 Chemical Engineering Department, Jadavpur University, Kolkata, India
Materials Sciences and Applications·Volume 09 (2018)·Pages 837–843·Published 5 September 2018·DOI10.4236/msa.2018.910060
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Abstract
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.
KeywordsPolymer BlendElectrical PropertiesCrystallizationMorphology
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