| 等通道转角挤压制备自增强高密度聚乙烯的结构与性能研究 |
| |
| 引用本文： | 马玉春,崔宏祥.等通道转角挤压制备自增强高密度聚乙烯的结构与性能研究[J].中国塑料,2006,20(2):25-28. |
| |
| 作者姓名： | 马玉春 崔宏祥 |
| |
| 作者单位： | 天津理工大学材料科学与工程学院,天津300191 |
| |
| 基金项目： | 天津理工大学科技发展基金资助项目（Lg04043）、天津市高等学校科技发展基金资助项目（20030429） |
| |
| 摘 要： | 采用等通道转角挤压方法对高密度聚乙烯进行自增强挤压，研究和分析了挤压工艺条件与材料结构、性能之间的关系。利用扫描电镜、广角X-射线衍射、差示扫描量热分析等手段对材料结构进行了表征。结果表明，经过等通道转角挤压后，高密度聚乙烯的结晶度提高、晶粒细化、熔点升高，形成明显的取向结构，拉伸强度提高了23％。
|
| 关 键 词： | 等通道转角挤压 自增强 高密度聚乙烯 取向 |
| 文章编号： | 1001-9278（2006）02-0025-04 |
| 收稿时间： | 2005-09-26 |
| 修稿时间： | 2005-09-26 |
Structure and Properties of Self-reinforced High-density Polyethylene Prepared via Equal Channel Angular Extrusion |
| |
| MA Yu-chun, CUI Hong-xiang.Structure and Properties of Self-reinforced High-density Polyethylene Prepared via Equal Channel Angular Extrusion[J].China Plastics,2006,20(2):25-28. |
| |
| Authors: | MA Yu-chun CUI Hong-xiang |
| |
| Affiliation: | Department of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300191, China |
| |
| Abstract: | The self-reinforcing extrusion high-density polyethylene via equal channel angular extrusion (ECAE) was studied. The relationship among the extrusion conditions, structures, and the properties was examined using scanning electron microscopy, wide-angular X-ray diffraction, and differential scanning calorimetry. Significant changes of crystalline and molecular orientation were observed. The degree of crystallinity increased and the size of crystallites decreased after the extrusion. The tensile strength of high-density polyethylene increased by 23 % . |
| |
| Keywords: | equal channel angular extrusion self-reinforcing high-density polyethylene orientation |
| 本文献已被 CNKI 维普 等数据库收录！ |
