首页> 外文期刊>Polymer Composites >Mechanical, thermal, and micro- and nanostructural properties of polyvinyl chloride/graphene nanoplatelets nanocomposites
【24h】

Mechanical, thermal, and micro- and nanostructural properties of polyvinyl chloride/graphene nanoplatelets nanocomposites

机译:聚氯乙烯/石墨烯纳米型纳米复合材料的机械,热和微型和纳米结构性能

获取原文
获取原文并翻译 | 示例
       

摘要

This article describes micro- and nanostructural, mechanical, and thermal properties of nanocomposites based on polyvinyl chloride (PVC) and graphene nanoplatelets (GNP). The primary objective of this study was to extend restricted application area of PVC due to its low thermal stability and limited mechanical properties. GNP-filled PVC nanocomposites were prepared (0, 0.1, 0.3, 0.5, and 1.0 wt%) by colloidal blending method and characterized in detail. The highest value of the tensile strength 13.73 MPa (an increase of 58%) and the highest value of microhardness 83.42 MPa (an increase of 82%) were obtained with GNP loading content of 0.5 wt% compared neat PVC. The mechanical properties started to decrease at loading higher than 0.5 wt%; however, the thermal properties continued to increase. The differential scanning calorimetry and Fourier transform infrared analysis results of this nanocomposite confirmed that the increase in glass transition temperature from 34.99 degrees C to 44.36 degrees C and the decrease in the height of functional groups peaks proved to prevented segmental relaxation and intermolecular vibrations of PVC, respectively. Thermogravimetric analysis results were showed that the percentage of carbonaceous residue increased to 15.77% by increasing the GNP content from 0.1 to 0.5 wt%. As a result, the best GNP loading was at 0.5 wt% for PVC/GNP nanocomposites where mechanical and thermal properties of PVC/GNP were both enhanced.
机译:本文介绍了基于聚氯乙烯(PVC)和石墨烯纳米片(GNP)的纳米复合材料的微型和纳米结构,机械和热性能。本研究的主要目的是由于其低热稳定性和机械性能有限,延长了PVC的限制应用面积。通过胶体混合方法制备(0,0.1,0.3,0.5和1.0wt%)制备GNP填充的PVC纳米复合材料,并详细表征。抗拉强度的最高值为13.73MPa(增加58%)和微硬度的最高值83.42MPa(增加82%),GNP加载含量为0.5wt%的纯净PVC。机械性能开始在高于0.5wt%时降低;然而,热性能继续增加。该纳米复合材料的差分扫描量热法和傅里叶变换红外分析结果证实,玻璃化转变温度的增加从34.99℃〜44.36℃的增加,并且官能团峰的高度降低证明是防止PVC的分段弛豫和分子间振动,分别。热重分析结果表明,通过将GNP含量从0.1至0.5wt%增加,碳质残留物的百分比增加到15.77%。结果,对于PVC / GNP纳米复合材料,最佳的GNP负载为0.5wt%,其中PVC / GNP的机械和热性能增强。

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