• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>RSC Advances >Effect of incorporation of boron nitride nanoparticles on the oxygen barrier and thermal properties of poly(3-hydroxybutyrate-co-hydroxyvalerate)
【24h】

Effect of incorporation of boron nitride nanoparticles on the oxygen barrier and thermal properties of poly(3-hydroxybutyrate-co-hydroxyvalerate)

机译：氮化硼纳米粒子的掺入对聚（3-羟基丁酸酯-共-羟基戊酸酯）的氧阻隔和热学性能的影响

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

In this study poly(3-hydroxybutyrate-co-3-hydroxyvalerate) and boron nitride (PHBV/BN) nanobiocomposites were prepared by incorporating various percentages of boron nitride using extrusion processing. The oxygen permeation properties of the PHBV nanocomposites were examined to compare their oxygen-barrier performance as affected by temperature and nanoparticle content. The resulting PHBV nanocomposites showed an increase in oxygen permeability as temperature increased, with an Arrhenius behavior, and an activation energy of 54.1 kJ mol(-1) and 57.5 kJ mol(-1) for neat PHBV and PHBV3BN composites, respectively. The barrier properties of the composites decreased with BN addition and reached 1.22 +/- 0.06 (cm(3) mm m(-2) per day per atm) at 3 wt%. Thermal stabilities of the prepared nanobiocomposites were measured by thermogravimetric analysis (TGA) and it was found that the thermal stability of the composites was higher than that of neat PHBV. The differential scanning calorimetry results indicated that the addition of BN nanoparticles to the composites increased their crystallinity.
机译：在这项研究中，聚（3-羟基丁酸酯-co-3-羟基戊酸酯）和氮化硼（PHBV / BN）纳米生物复合材料是通过挤压工艺掺入各种百分比的氮化硼而制备的。检查了PHBV纳米复合材料的透氧性能，以比较其受温度和纳米粒子含量影响的阻氧性能。所得的PHBV纳米复合材料显示出随温度升高的透氧性增加，具有Arrhenius行为，纯PHBV和PHBV3BN复合材料的活化能分别为54.1 kJ mol（-1）和57.5 kJ mol（-1）。复合材料的阻隔性能随BN的添加而降低，在3 wt％时达到1.22 +/- 0.06（cm / 3 mm m（-2）每天每大气压）。通过热重分析（TGA）测量了制备的纳米生物复合材料的热稳定性，发现该复合材料的热稳定性高于纯净PHBV。差示扫描量热法结果表明，向复合物中添加BN纳米颗粒可提高其结晶度。

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