• 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 >Physical characteristics of sweet potato pulp/polycaprolactone blends
【24h】

Physical characteristics of sweet potato pulp/polycaprolactone blends

机译：甘薯纸浆/聚己内酯混合物的物理特性

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

Sweet potato pulp (SSP) obtained as a by-product from starch extraction was blended with polycaprolactone (PCL) to prepare a biodegradable plastic material. In the blends, PCL was used as a reinforcing agent. The SPP/PCL blends were prepared by compression-molding under high temperature and pressure, at different SPP/PCL ratios, and the mechanical properties of the molded specimens were tested. Matrix structure and thermal properties were measured by using a Fourier transform infrared (FTIR) spectrophotometer, scanning electron microscope (SEM), differential scanning calorimetry (DSC), and thermogravimetric analyzer (TGA). Mechanical properties (tensile and flexural properties) were also measured to find the most suitable ratio in a SSP/PCL blend. During compression molding of the SPP/PCL blends under high pressure and temperature, chemical reaction occurred between SPP and PCL, and thus, thermal stability and mechanical strength of the blends increased and water uptake decreased. Also, by increasing the PCL content in the blend, the matrix in the blend became more homogeneous, and consequently, mechanical strength of the molded specimen increased. At 7/3 or 6/4 weight ratio of SSP/PCL, water uptake of the molded specimen became substantially less than that at 8/2. (C) 2004 Wiley Periodicals, Inc. [References: 17]
机译：将从淀粉提取中获得的副产品红薯纸浆（SSP）与聚己内酯（PCL）混合，以制备可生物降解的塑料。在共混物中，PCL被用作增强剂。通过在高温和高压下以不同的SPP / PCL比压缩成型来制备SPP / PCL共混物，并测试成型样品的机械性能。通过使用傅立叶变换红外（FTIR）分光光度计，扫描电子显微镜（SEM），差示扫描量热法（DSC）和热重分析仪（TGA）测量基体结构和热性能。还测量了机械性能（拉伸和弯曲性能），以找到SSP / PCL共混物中最合适的比例。在高压和高温下对SPP / PCL共混物进行压缩成型时，SPP和PCL之间发生化学反应，因此，共混物的热稳定性和机械强度提高，吸水率降低。而且，通过增加共混物中的PCL含量，共混物中的基质变得更均匀，因此，模塑样品的机械强度增加。在SSP / PCL重量比为7/3或6/4时，模制样品的吸水率明显小于8/2。 （C）2004 Wiley Periodicals，Inc. [参考：17]

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