• 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 >RELATIONSHIPS BETWEEN THE PROPERTIES OF FIBERS AND THERMALLY BONDED NONWOVEN FABRICS MADE OF POLYPROPYLENE
【24h】

RELATIONSHIPS BETWEEN THE PROPERTIES OF FIBERS AND THERMALLY BONDED NONWOVEN FABRICS MADE OF POLYPROPYLENE

机译：纤维的性质与聚丙烯热粘合非织造布的关系

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

Typical polypropylene fibers for use in light nonwoven fabrics were produced in a full-scale compact-spinning line. Molecular weight distribution (MWD), extrusion temperature, draw-down ratio, and draw ratio were varied. The fibers were thermally bonded (welded) into nonwoven fabrics, at different bonding temperatures, using a pilot calender line. The tensile properties of the fabrics are influenced by the MWD and the processing conditions of the fibers, and the effects of these fiber parameters increase with increasing bonding temperature. The fabric strength increases with increasing M(w)/M(n), decreasing draw ratio, and increasing extrusion temperature, while in all these cases the fiber strength generally follows the opposite trend. Furthermore, the fabric strength, as well as the fiber strength, have a maximum as a function of draw-down ratio. The tensile properties of the fabrics seem to be governed by the bonding properties of the constituent fibers, not the fiber strength per se. Bond characteristics are discussed in terms of skin-core structures. Some details of the macroscopic fracture mechanisms of fabrics were revealed by scanning electron microscopy and the shape of load-elongation curves. (C) 1995 John Wiley & Sons, Inc. [References: 50]
机译：在轻型无纺布中使用的典型聚丙烯纤维是在大规模紧密纺生产线上生产的。分子量分布（MWD），挤出温度，拉伸比和拉伸比是变化的。使用试验压延线，在不同的粘合温度下将纤维热粘合（焊接）成无纺布。织物的拉伸性能受MWD和纤维加工条件的影响，并且这些纤维参数的影响随粘合温度的升高而增加。织物强度随着M（w）/ M（n）的增加，拉伸比的降低和挤出温度的升高而增加，而在所有这些情况下，纤维强度通常遵循相反的趋势。此外，织物强度以及纤维强度根据拉伸比具有最大值。织物的拉伸性能似乎由组成纤维的粘合性能决定，而不是由纤维本身的强度决定。结合特性是根据皮肤核心结构来讨论的。通过扫描电子显微镜和载荷-伸长曲线的形状揭示了织物的宏观断裂机理的一些细节。 （C）1995 John Wiley＆Sons，Inc. [参考：50]

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