• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>RSC Advances >Bio-polyurethanes from Sapium sebiferum oil reinforced with carbon nanotubes: synthesis, characterization and properties
【24h】

Bio-polyurethanes from Sapium sebiferum oil reinforced with carbon nanotubes: synthesis, characterization and properties

机译：碳纳米管增强的乌ap油中的生物聚氨酯：合成，表征和性能

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

The physicochemical properties and fatty acid profile of natural Sapium sebiferum oil (SSO) were analyzed and found to have a high iodine value of 186.8 g/100 g. Then, a novel SSO-based polyurethane (PU) was successfully synthesized via an in situ polymerization method, and multi-walled carbon nanotubes (CNTs) were modified by an acid mixture and ethylenediamine (EDA) to further reinforce the PU matrix. The microstructure and the properties of the functionalized CNTs and the PU/CNT composites were characterized by Fourier transform infrared (FTIR), transmission electron microscopy (TEM), thermogravimetric analysis (TGA), scanning electron microscopy (SEM) and differential scanning calorimetry (DSC). The results showed that amino-functionalized CNTs could homogeneously disperse in the PU matrix and significantly improved the thermal and mechanical properties of the composite. Compared with pure PU, the glass transition temperature and initial decomposition temperature of the PU matrix with amino-functionalized CNTs were respectively enhanced by 17.1 and 32.5 degrees C. Meanwhile, 295% improvement in the tensile strength, 111.3% enhancement in the Young's modulus and 22.4% increment in the elongation at break of the composite were observed. The properties of the PU/CNT composites indicate the great potential applications of SSO in polymer materials.
机译：分析了天然乌ap子油（SSO）的理化特性和脂肪酸谱，发现其碘值为186.8 g / 100 g。然后，通过原位聚合方法成功合成了一种新型的基于SSO的聚氨酯（PU），并通过酸混合物和乙二胺（EDA）对多壁碳纳米管（CNT）进行了改性，以进一步增强PU基体。通过傅里叶变换红外光谱（FTIR），透射电子显微镜（TEM），热重分析（TGA），扫描电子显微镜（SEM）和差示扫描量热法（DSC）对功能化CNT和PU / CNT复合材料的微观结构和性能进行了表征。 ）。结果表明，氨基官能化的CNTs可以均匀地分散在PU基体中，并显着提高了复合材料的热力学性能。与纯PU相比，氨基官能化CNT的PU基体的玻璃化转变温度和初始分解温度分别提高了17.1和32.5℃。同时，拉伸强度提高了295％，杨氏模量提高了111.3％，而杨氏模量提高了111.3％。观察到复合材料的断裂伸长率增加22.4％。 PU / CNT复合材料的性能表明SSO在聚合物材料中的巨大潜在应用。

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