• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Applied Polymer Science >Effect of In Situ Surface-Modified Nano-SiO2 on the Thermal and Mechanical Properties and Crystallization Behavior of Nylon 1010
【24h】

Effect of In Situ Surface-Modified Nano-SiO2 on the Thermal and Mechanical Properties and Crystallization Behavior of Nylon 1010

机译：原位表面改性纳米SiO2对尼龙1010热力学性能和结晶行为的影响

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

Nylon 1010 composites filled with two types of surface-modified SiO2 nanoparticles (RNS and DNS) were prepared by melt blending. The mechanical properties of the composites were evaluated. The influences of the surface-modified nano-SiO2 on the thermal stability, crystallization behavior, and microstructure of nylon 1010 were investigated by thermogravimetric analysis, differential scanning calorimetry (DSC), X-ray diffraction, and transmission electron microscopy. And the interfacial interactions between the fillers and polymer matrix were examined using a Fourier transformation infrared spectrometer. It was found that the addition of the surface-modified nano-SiO2 had distinct influences on the thermal stability, mechanical properties, and crystallization behavior of nylon 1010. RNS and DNS as the fillers had different effects on the mechanical properties of nylon 1010. The composites filled with RNS at a mass fraction of 1-5% showed increased break elongation, Young's modulus, and impact strength but almost unchanged or even slightly lowered tensile strength than the unfilled matrix. The DNS-filled nylon 1010 composites had obviously decreased tensile strength, whereas the incorporation of DNS also contributed to the increase in the Young's modulus of nylon 1010, but less effective than RNS. Moreover, the nylon 1010 composites had better thermal stability than the neat polymer matrix, and the composites filled with RNS were more thermally stable than those filled with DNS. The difference in the crystallinity of neat nylon 1010 and its composites filled with RNS and DNS was subtle, although the surface-modified nano-SiO2 could induce or/and stabilize the gamma-crystalline formation of nylon 1010.
机译：通过熔融共混制备了填充有两种类型的表面改性的SiO2纳米颗粒（RNS和DNS）的尼龙1010复合材料。评价了复合材料的机械性能。通过热重分析，差示扫描量热法（DSC），X射线衍射和透射电子显微镜研究了表面改性的纳米SiO2对尼龙1010的热稳定性，结晶行为和微观结构的影响。并使用傅立叶变换红外光谱仪检查了填料与聚合物基体之间的界面相互作用。发现添加表面改性的纳米SiO2对尼龙1010的热稳定性，机械性能和结晶行为有明显的影响。RNS和DNS作为填料对尼龙1010的机械性能有不同的影响。质量分数为1-5％的RNS填充的复合材料显示出断裂伸长率，杨氏模量和冲击强度提高，但与未填充的基质相比，拉伸强度几乎没有变化，甚至略有降低。 DNS填充的尼龙1010复合材料的拉伸强度明显降低，而DNS的掺入也有助于尼龙1010的杨氏模量增加，但效果不如RNS。此外，尼龙1010复合材料的热稳定性优于纯聚合物基体，填充RNS的复合材料比填充DNS的复合材料更热稳定。尽管表面改性的纳米SiO2可以诱导或/和稳定尼龙1010的伽马晶体形成，但纯尼龙1010及其填充RNS和DNS的复合材料的结晶度差异微妙。

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