纳米Fe_3O_4与纳米SrO·6Fe_2O_3填充丁腈橡胶复合材料的力学与磁学性能  

Magnetic Properties and Mechanical Properties of NBR Composites Filled with Nano-Fe_3O_4 or Nano-SrO·6Fe_2O_3

作　　者：王其磊[1] 杨逢瑜[1] 杨倩[1] 陈君辉[1] 关红艳[1] 

机构地区：[1]兰州理工大学磁性物理与磁技术研究所,兰州730050

出　　处：《材料工程》2011年第7期75-79,84,共6页Journal of Materials Engineering

基　　金：温州科技交流项目(H20070021);甘肃省自然科学基金项目(3ZS051-A25-031)

摘　　要：以NBR、纳米Fe3O4和纳米SrO.6Fe2O3为原料制备了NBR/Fe3O4复合材料与NBR/SrO.6Fe2O3复合材料。研究了不同纳米粒子含量时,两种复合材料中的物理机械性能变化、磁学性能以及复合材料中的纳米粒子分布。结果表明:随着纳米粒子的不断加入,复合材料的抗拉强度、300%定伸应力与扯断伸长率不断下降,但是硬度与门尼黏度不断提高。加入的纳米粒子在NBR基体中分布较为均匀。随着纳米Fe3O4粒子和纳米SrO.6Fe2O3含量的加大,复合材料的磁性能不断得到提高。两种复合材料均具有较好软磁性能,为该类复合材料的进一步应用奠定了基础。The NBR/Fe3O4 composites and NBR/SrO·6Fe2O3 composites were prepared with NBR,nano-Fe3O4 and nano-SrO·6Fe2O3 as raw material.Magnetic properties and mechanical properties of the two composites were studied.The distribution of nano-particles were also analyzed.The results show that when adding different mass fraction of nano-particles,maximum elongation,300% stress at definite elongation and tensile strength of the two composites are decreased.Whereas shore A hardness and mooney viscosity of the two composites are improved.Nano-particles are well distributed in the two composites.Magnetic properties of two composites are closely related with mass fraction of nano-particles.Also,both the two composites have good soft magnetism properties,which lay the foundation for further applications of this kind of composites.

关 键 词：NBR/SrO.6Fe2O3复合材料 NBR/Fe3O4复合材料 力学性能 磁学性能 

分 类 号：TB34[一般工业技术—材料科学与工程] TM271[电气工程—电工理论与新技术]