• 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 >Supramolecular morphology of two-step, melt-spun poly(lactic acid) fibers
【24h】

Supramolecular morphology of two-step, melt-spun poly(lactic acid) fibers

机译：两步熔纺聚乳酸纤维的超分子形态

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

Fibers of poly(lactic acid) produced by two-step melt spinning have been studied. The morphology is elucidated with respect to the thermal and mechanical properties of fibers produced at cold-draw ratios of 1-8. With atomic force microscopy and small-angle X-ray scattering, a fibrillar morphology is found, with microfibril diameters ranging from 30 to 60 nm. Shrinkage properties indicate that, with increasing draw ratio, the fibers undergo a transition from class 2 to class 1 within the classification proposed by Keller. A supramolecular model for the morphology of the fibers is presented that entails a highly oriented skin with a core consisting of microfibrils. The orientation of the crystalline blocks within the microfibrils is similar to what has been reported for nylon fibers. (C) 2002 Wiley Periodicals, Inc. [References: 26]
机译：研究了通过两步熔融纺丝生产的聚乳酸纤维。关于以1-8的冷拉伸比生产的纤维的热和机械性质，阐明了形态。通过原子力显微镜和小角度X射线散射，发现了原纤维形态，其微原纤维直径范围为30至60 nm。收缩性能表明，随着拉伸比的增加，纤维在Keller提出的分类中经历了从2级到1级的转变。提出了一种纤维形态的超分子模型，该模型需要高度定向的皮肤，其核心由微纤维组成。微原纤维内的结晶嵌段的取向与针对尼龙纤维的报道相似。 （C）2002 Wiley Periodicals，Inc. [参考：26]

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