• 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 >Coincorporation of nano-silica and nano-calcium carbonate in polypropylene
【24h】

Coincorporation of nano-silica and nano-calcium carbonate in polypropylene

机译：纳米二氧化硅和纳米碳酸钙在聚丙烯中的共混

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

In this study, various polypropylene (PP) nanocomposites were prepared by melt blending method. The effects of different spherical nanofillers, such as 50 nm CaCO_3 and 20 nm SiO_2, on the linear viscoelastic property, crystallization behavior, morphology and mechanical property of the resulting PP nanocomposites were examined. Rheological study indicated that coincorporation of nano-SiO_2 and nano-CaCO_3 favored the uniform dispersion of nanoparticles in the PP matrix. Differential scanning calorimeter (DSC) and polarizing optical microscopy (POM) studies revealed that the coincorporation of SiO_2 and CaCO_3 nanoparticles could effectively improve PP crystallizability, which gave rise to a lower supercooling temperature (ΔT), a shorter crystallization half-life (t _(1/2)) and a smaller spherulite size in comparison with those nanocomposites incorporating only one type of CaCO_3 or SiO _2 nanoparticles. The mechanical analysis results also showed that addition of two types of nanoparticles into PP matrix gave rise to enhanced performance than the nanocomposites containing CaCO_3 or SiO _2 individually.
机译：在这项研究中，通过熔融共混方法制备了各种聚丙烯（PP）纳米复合材料。研究了不同球形纳米填料（如50 nm CaCO_3和20 nm SiO_2）对所得PP纳米复合材料的线性粘弹性，结晶行为，形貌和力学性能的影响。流变学研究表明，纳米SiO_2和纳米CaCO_3的共混促进了纳米颗粒在PP基体中的均匀分散。差示扫描量热仪（DSC）和偏振光学显微镜（POM）研究表明，SiO_2和CaCO_3纳米颗粒的共混可以有效改善PP的结晶性，从而降低了过冷温度（ΔT），缩短了结晶半衰期（t _ （1/2））和与仅掺入一种类型的CaCO_3或SiO _2纳米颗粒的纳米复合材料相比，较小的球晶尺寸。力学分析结果还表明，与单独包含CaCO_3或SiO _2的纳米复合材料相比，将两种类型的纳米颗粒添加到PP基体中可提高性能。

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