首页> 外文期刊>Journal of Applied Polymer Science >Effects of the Loading Levels of Organically Modified Montmorillonite on the Flame-Retardant Properties of Asphalt
【24h】

Effects of the Loading Levels of Organically Modified Montmorillonite on the Flame-Retardant Properties of Asphalt

机译:有机改性蒙脱土含量对沥青阻燃性能的影响

获取原文
获取原文并翻译 | 示例
           

摘要

The flame-retardant properties of asphalt for some building applications are very important. In this study, we mainly focused on the influence of organically modified montmorillonite (OMMT) on the flame-retardant and other properties of asphalt in a large content range and explored suitable contents of OMMT for modified asphalts. Modified asphalts with different contents of OMMT from 2 to 15 wt % were prepared by melt blending. The X-ray diffraction results revealed that the intercalated structure was formed in the OMMT-modified asphalt. Rubber processing analysis results indicated the formation of a filler-network structure in the OMMT-modified asphalt. The limiting oxygen index and cone calorimetry results suggested that OMMT could be used as efficient and ideal flame retardants of asphalt. The results also reveal that excess OMMT contents (i.e., >10 wt %) depredated the flameretardant performance of the modified asphalt. We analyzed the mechanism by taking into account of the features of the modified agent for OMMT. The experimental data showed that the viscosity, softening point, and penetration index of the OMMT-modified asphalt increased with increasing OMMT content, but the ductility decreased slightly when the OMMT content was not beyond 7 wt %. VC 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014, 131, 10.1002/app.40972.
机译:沥青在某些建筑应用中的阻燃性能非常重要。在这项研究中,我们主要关注有机改性蒙脱土(OMMT)在大含量范围内对沥青的阻燃性和其他性能的影响,并探讨了适合改性沥青的OMMT含量。通过熔融共混制备具有2至15重量%的不同OMMT含量的改性沥青。 X射线衍射结果表明,在OMMT改性的沥青中形成了插层结构。橡胶加工分析结果表明,在OMMT改性沥青中形成了填料网络结构。极限氧指数和锥形量热法结果表明,OMMT可用作沥青的有效和理想阻燃剂。结果还表明,过量的OMMT含量(即,> 10wt%)使改性沥青的阻燃性能不合时宜。我们通过考虑OMMT的修改代理的功能来分析该机制。实验数据表明,OMMT改性沥青的粘度,软化点和渗透指数随OMMT含量的增加而增加,但当OMMT含量不超过7 wt%时,延性略有下降。 VC 2014 Wiley Periodicals,Inc. J. Appl。 Polym。科学2014,131,10.1002 / app.40972。

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