玻璃纤维芯-铅网增强橡胶复合材料动态性能  

Dynamic properties of glass-fiber-cored lead-net reinforced rubber composite

作　　者：吕丽[1] 白书欣[1] 张虹[1] 王进[2] 肖加余[1] 杨军[2] 

机构地区：[1]国防科学技术大学航天与材料工程学院,长沙410073 [2]株洲时代新材料科技股份有限公司,株洲412007

出　　处：《复合材料学报》2006年第6期37-45,共9页Acta Materiae Compositae Sinica

摘　　要：制备了具有不同结构和界面结合强度的玻璃纤维芯一铅网增强橡胶复合材料（GF—Pb／R），并通过测试复合材料的力滞回线，研究了其在3～20Hz时的动态性能。结果表明，GF—Pb网增强结构可以同时提高橡胶的动态力学性能和阻尼性能，其中GF—Pb网垂向增强方式的性能改善效果明显，当GF—Pb网体积分数为4％时，其动刚度和损耗因子的提高率可分别达到49％和25％。GF—Pb／R复合材料阻尼性能是材料阻尼、界面微滑移阻尼、Pb塑性变形阻尼等多种阻尼机制共同作用的结果。界面粘结强度显著影响了复合材料的力学性能和阻尼行为：GF—Pb／R刚度随界面结合强度的增大而提高；损耗因子按照界面中等强度结合、强结合、弱结合的顺序递增。Glass-fiber cored lead-net （GF-Pb net） reinforced rubber composites （GF-Pb/R） with different struc- tures and different interfaces were prepared. And their dynamic properties were studied within 3-20 Hz by testing their hysteresis loops. It tells that the dynamic mechanical property and damping property of GF-Pb/R are improved simultaneously. The increasing ratios of dynamic properties of GF-Pb net vertically reinforced rubber composite （V-GF-Pb/R） are higher than those of GF-Pb net horizontally reinforced rubber composite （H-GF-Pb/R）. And the increasing ratios of dynamic stiffness and damping loss factor are 49% and 25%for V- GF-Pb/R with the GF-Pb net volume fraction of 4%. It is concluded that the damping of GF-Pb/R results from material damping, micro-slippage damping and damping from micro-plastic deformation of lead. The interface bond strength influences the mechanical property and the damping behavior of GF-Pb/R remarkably. The dynamic stiffness of GF- Pb/R increases with increasing the interface bond strength. However, the loss factor is a maximum when the interface bond strength is between weak bond and strong bond.

关 键 词：橡胶复合材料 动态性能 界面 阻尼 粘结强度 

分 类 号：TB332[一般工业技术—材料科学与工程]