【24h】

Nanomechanical behaviour of ZrO_2 dispersed sisal-based polymeric composites

机译:ZrO_2分散的Sisal基聚合物复合材料的纳米力学行为

获取原文
获取原文并翻译 | 示例
       

摘要

Alkali-treated sisal fibre-incorporated silanized ZrO2 dispersed unsaturated polyester composites were fabricated with a filler loading of 5, 15, 25, 35, 45 wt%, respectively. The mechanical characterization of the composites was suitably executed at the sub-micron scale using the nanoindentation technique. Various mechanical properties were derived from the standard nanoindentation measurements namely, nanohardness, reduced modulus, recovery index, residual depth, wear rate and indentation creep, respectively. A marked improvement in the mechanical properties of the unsaturated polyester matrix due to the incorporation of the fillers (sisal and/or ZrO2) was observed through indentation-derived parameters namely, nanohardness (similar to 186%), reduced modulus (similar to 175%), recovery index (similar to 62%), wear rate (similar to 63%) and indentation creep (similar to 33%), respectively. A simulated dynamic mechanical analysis was performed using the sinus mode of the nanoindentation technique. A similar enhancement in the dynamic mechanical properties of the matrix was further observed through dynamic mechanical analysis as storage modulus (similar to 71%), loss modulus (similar to 60%), loss factor (similar to 150%) and specific damping coefficient (similar to 200%), respectively.
机译:碱处理的Sisal纤维掺入硅烷化ZrO2分散的不饱和聚酯复合材料分别为5,15,25,35,45wt%的填充剂负载。复合材料的机械表征使用纳米狭窄技术适当地以亚微米级执行。各种机械性能源自标准纳米狭窄测量,即分别,纳米型,减少的模量,恢复指数,残余深度,磨损率和压痕蠕变。通过缩进的参数观察到不饱和聚酯基质的机械性能的显着改善,即通过压痕衍生的参数观察,即纳米醛(类似于186%),减少的模量(类似于175%) ),恢复指数(类似于62%),磨损率(类似于63%)和压痕蠕变(类似于33%)。使用纳米狭窄技术的窦模式进行模拟动态力学分析。通过动态机械分析进一步观察到基质动态力学性能的类似增强作为储存模量(类似于71%),损耗模量(类似于60%),损耗因数(类似于150%)和特定的阻尼系数(类似于200%)。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号