• 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 and Mechanical Properties of the Fully Interconnected Chitosan Ice-Templated Scaffolds
【24h】

Physical and Mechanical Properties of the Fully Interconnected Chitosan Ice-Templated Scaffolds

机译：完全互连的壳聚糖冰模板脚手架的物理和力学性能

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

Porous chitosan scaffolds were prepared with a freeze-casting technique with different concentrations, 1.5 and 3 wt %, and also different cooling rates, 1 and 4 degrees C/min. The pore morphology, porosity, pore size, mechanical properties, and water absorption characteristics of the scaffolds were studied. Scanning electron microscopy images showed that the freeze-cast scaffolds were fully interconnected because of the existence of pores on the chitosan walls in addition to many unidirectionally elongated pores. Increases in the chitosan concentration and freezing rate led to elevations in the thickness of the chitosan walls and reductions in the pores size, respectively. These two results led to the enhancement of the compressive strength from 34 to 110 kPa for the scaffolds that had 96-98% porosity. Also, augmentation of the chitosan concentration and decreases in the freezing rate led to the reduction of the number of pores on the chitosan walls. Furthermore, the volume of water absorption increased with a reduction in the chitosan concentration and cooling rate from 690 to 1020%. (C) 2014 Wiley Periodicals, Inc.
机译：多孔壳聚糖支架是通过冷冻铸造技术制备的，其浓度为1.5和3 wt％，浓度不同，冷却速度为1和4摄氏度/分钟。研究了支架的孔隙形态，孔隙率，孔径，力学性能和吸水特性。扫描电子显微镜图像显示，由于在壳聚糖壁上除了许多单向拉长的孔外还存在孔，因此冷冻浇铸的支架完全互连。壳聚糖浓度和冷冻速率的增加分别导致壳聚糖壁厚度的增加和孔尺寸的减小。这两个结果导致具有96-98％孔隙率的支架的抗压强度从34kPa提高到110kPa。而且，壳聚糖浓度的增加和冷冻速率的降低导致壳聚糖壁上的孔数量的减少。此外，随着壳聚糖浓度和冷却速率从690降低到1020％，吸水量增加。 （C）2014威利期刊公司

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