• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Advanced Functional Materials >Self-Healing Properties of Protein Resin with Soy Protein Isolate-Loaded Poly(D,L-lactide-co-glycolide) Microcapsules
【24h】

Self-Healing Properties of Protein Resin with Soy Protein Isolate-Loaded Poly(D,L-lactide-co-glycolide) Microcapsules

机译：大豆分离蛋白聚（D，L-丙交酯-共-乙交酯）微胶囊负载蛋白树脂的自愈性能

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

Self-healing soy protein isolate (SPI)-based "green" thermoset resin is developed using poly(D,L -lactide-co -glycolide)(PLGA) microcapsules containing SPI, as crack healant. The SPI-PLGA microcapsules with an average diameter of 778 nm that contain sub-capsules are prepared using a water-in-oil-in-water double-emulsion solvent evaporation technique. The encapsulation efficiency is found to be high, up to 89%. Thermoset green SPI resin containing the SPI-PLGA microcapsules successfully arrests and retards the microcracks. The healing efficiency is investigated using mode I fracture toughness test for resins containing different concentrations of microcapsules from 5 to 20 wt% and glutaraldehyde as a crosslinker at 9 or 12 wt%. The SPI resin containing 12 wt% glutaraldehyde and 15 wt% microcapsules shows self-healing efficiency of up to 48%. It is observed that the SPI released from SPI-PLGA microcapsules can react with the excess glutaraldehyde present in the resin when the two come in contact within the microcracks and bridge the two fracture surfaces. The results of this study show for the first time that SPI-PLGA microcapsules can self-heal protein-based green resins. The same method can be extended to self-heal other proteins as well as protein-based green composites resulting in higher fracture toughness and longer useful life.
机译：基于自我修复的大豆分离蛋白（SPI）的“绿色”热固性树脂是使用含有SPI的聚（D，L-丙交酯-乙交酯-乙交酯）（PLGA）微胶囊作为裂缝修复剂开发的。使用水包油包水型双乳液溶剂蒸发技术制备平均直径为778 nm的SPI-PLGA微囊，其中包含子囊。发现封装效率很高，高达89％。包含SPI-PLGA微囊的热固性绿色SPI树脂成功地阻止并阻止了微裂纹。使用模式I断裂韧性测试，对含有5至20 wt％不同浓度的微胶囊和9至12 wt％的戊二醛作为交联剂的树脂，研究其愈合效率。包含12 wt％的戊二醛和15 wt％的微囊的SPI树脂显示出高达48％的自愈效率。观察到，当两​​者在微裂纹内接触并桥接两个断裂表面时，从SPI-PLGA微胶囊释放的SPI可以与树脂中存在的过量戊二醛反应。这项研究的结果首次表明SPI-PLGA微胶囊可以自我修复基于蛋白质的绿色树脂。相同的方法可以扩展到自愈其他蛋白质以及基于蛋白质的绿色复合材料，从而获得更高的断裂韧性和更长的使用寿命。

著录项

  • 来源
    《Advanced Functional Materials》 |2016年第26期|4786-4796|共11页
  • 作者

    Kim Joo Ran; Netravali Anil N.;

  • 作者单位

    Cornell Univ, Fiber Sci & Apparel Design, Ithaca, NY 14853 USA;

    Cornell Univ, Fiber Sci & Apparel Design, Ithaca, NY 14853 USA;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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