• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Fibres & textiles in Eastern Europe >Static and Dynamic Mechanical Properties of Cotton/Epoxy Green Composites
【24h】

Static and Dynamic Mechanical Properties of Cotton/Epoxy Green Composites

机译：棉/环氧绿色复合材料的静态和动态力学性能

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A study on the effect of alkaline treatment on the mechanical properties of cotton fabric reinforced epoxy composites is presented in this paper. One hour treatment of cotton fabric was performed using three different concentrations of sodium hydroxide (NaOH) solution. 1% NaOH treated fabric reinforced composites exhibited maximum improvement in tensile strength. It was concluded that the said NaOH concentration improves interfacial adhesion between the cotton fabric and epoxy resin. Moreover the morphology of the fracture surface, evaluated by scanning electron microscopy (SEM), indicated that surface treatment can yield better adhesion between the fabric and matrix, demonstrating the effectiveness of the treatment. The dynamic mechanical analysis (DMA) results revealed that alkali treated (1% and 3% NaOH) fabric composites exhibit higher storage moduli and glass transition temperature (Tg) values as compared to the untreated fabric composites. However, for all the composite specimens, the storage modulus decreased with increasing temperature (25 -100 degrees C). Tg values of 50.9, 56.7, 52.8 and 37.7 degrees C were recorded for the untreated and (1%, 3% and 5%) treated composites, respectively. The tan delta values decreased for all the composites with increasing temperature, indicating enhanced interactions between the polymer matrix and fabric reinforcement.
机译：本文研究了碱处理对棉织物增强环氧复合材料力学性能的影响。使用三种不同浓度的氢氧化钠（NaOH）溶液对棉织物进行一小时的处理。 1％NaOH处理的织物增强复合材料在拉伸强度方面表现出最大的改善。结论是，所述NaOH浓度改善了棉织物和环氧树脂之间的界面粘合性。而且，通过扫描电子显微镜（SEM）评估的断裂表面的形态表明，表面处理可以在织物和基体之间产生更好的粘附性，证明了处理的有效性。动态力学分析（DMA）结果表明，与未处理的织物复合材料相比，碱处理（1％和3％NaOH）的织物复合材料显示出更高的储能模量和玻璃化转变温度（Tg）值。但是，对于所有复合材料样品，储能模量均随温度（25 -100摄氏度）的升高而降低。对于未处理的复合材料和（1％，3％和5％）处理的复合材料，Tg值分别为50.9、56.7、52.8和37.7摄氏度。随着温度的升高，所有复合材料的tanδ值均降低，表明聚合物基质与织物增强材料之间的相互作用增强。

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