填充聚合物复合材料黏弹特性研究  

Visco-elastic of filled polymer composites

作　　者：殷水平[1] 

机构地区：[1]中南林业科技大学流变力学与材料工程研究所,湖南长沙410004

出　　处：《中南林业科技大学学报》2011年第12期168-173,共6页Journal of Central South University of Forestry & Technology

基　　金：中南林业科技大学青年科学研究基金资助(2009043B)

摘　　要：聚合物材料作为结构材料应用越来越广泛,在实际服役过程中,普遍承受各种复杂的动态载荷,因而动态的力学性能能够更好的反应其在实际使用过程中的性能。材料的动态力学行为是指材料在振动条件下,即在交变应力(或交变应变、力)作用下作出的响应。它不同于材料的静态力学行为,后者是指材料在恒定的单调递增应力(应变、力)作用下的行为。动态力学分析则是在较低的应力水平(线弹性阶段,低于材料的屈服强度)下测量材料的动态刚度和阻尼。采用德国GABO公司的动态热力学谱仪EPLEXOR 500N系统对PU和PSO填充材料进行了分析,考察了储能模量E′、损耗模量E′′和损耗角正切tanδ与预加静态载荷、频率的关系,并通过温度扫描测试了PU和PSO填充材料的玻璃化转变温度。Polymers are widely used in the engineering for structure materials carrying various complex dynamic loads,dynamic mechanical properties can reflect the actual properties than static.Dynamic mechanical behavior of materials,which responses under cyclic stress（cyclic strain/force） in vibration condition,is different from its static behavior.The latter is the behavior of material in a monotonic increasing stress（strain/force）.Dynamic mechanics analysis（DMA） is a method to measure the dynamic stiffness and damping in a lower stress level（linear elastic and lower than its yield strength）.Dynamic mechanical experiments of filled polymer materials,polysulfone（PSU） and polyurethane（PUR）,were performed on EPLEXOR 500 N which manufactured by GABO of Germany,the relationship of storage modulus E′,loss storage modulus E′′ and loss tangent to pre-static load and frequency were systemically analyzed.

关 键 词：填充聚合物复合材料 PSO PU 复合材料 动态测量 黏弹性 玻璃化转变温度 

分 类 号：S789[农业科学—林学]