塑料科技2024，Vol.52Issue(3)：13-17,5.DOI:10.15925/j.cnki.issn1005-3360.2024.03.003
氧化铝/聚烯烃复合材料的制备与性能研究
Study on Preparation and Properties of Al2O3/Polyolefin Composites
摘要
Abstract
In order to investigate the structure and properties of Al2O3/polyolefin composites,spherical Al2O3 was pretreated with a silane coupling agent,and high density polyethylene(HDPE)/polypropylene(PP)composites were prepared by primary mixing and melt blending with pretreated Al2O3 as filler and high density polyethylene(HDPE)/polypropylene(PP)mixture(mass ratio 5∶95)as matrix.The investigation of the influence of the mass fraction of Al2O3 on the structure and properties of the composites was studied.The results showed that the addition of Al2O3 significantly enhanced the thermal conductivity of the composites.Specifically,the thermal conductivity increased proportionally with the mass fraction of Al2O3.When the Al2O3 mass fraction reached 25%,the thermal conductivity of the composite measured 0.331 W/(m∙K),which was 231%higher than that of the pure polyolefin matrix material.Moreover,the presence of Al2O3 particles with high filler content led to a noticeable reduction in gaps within the composite,thereby facilitating the construction of thermal conductivity pathways.Additionally,the incorporation of a lower content of rigid Al2O3 particles improved crystallization ability of the polymer.Notably,the addition of the spherical Al2O3 also significantly enhanced the melt flow rate of the composites,and improved its processing performance.关键词
聚丙烯/高密度聚乙烯/氧化铝/导热系数Key words
Polypropylene/High density polyethylene/Alumina/Thermal conductivity分类
通用工业技术引用本文复制引用
马书鑫,王艳芝,南钰,岳献阳,张一飞,范惠玲..氧化铝/聚烯烃复合材料的制备与性能研究[J].塑料科技,2024,52(3):13-17,5.基金项目
河南省科技创新优秀团队项目(豫科人组[2017]9号) （豫科人组[2017]9号）
国网河南省电力公司科研项目(521790200018) （521790200018）
河南省高等学校重点科研项目计划(24A430052) （24A430052）
