Biaxial Stretching of Ultrahigh Strength Polyolefinic Gel Films UHMWPE and UHMWPP

超高强度聚烯烃凝胶薄膜 UHMWPE 和 UHMWPP 的双向拉伸

• 批准号: 8519906
• 负责人: Thein Kyu
• 金额: $ 5.84万
• 依托单位: University of Akron
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1986
• 资助国家: 美国
• 起止时间: 1986-04-15 至 1988-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8519906&HistoricalAwards=false
• 关键词: Biaxial; Stretching; Ultrahigh; Strength; Polyolefinic

Ultrahigh molecular weight polyethylene (UHMPVPE) and polypropylene (UHMWPP) polymer gel fibers, if properly oriented, can yield good mechanical properties comparable to some of the strongest materials such as steels and carbon fibers. The gel UHMWPE fibers show high strength in the longitudinal direction but their strength in the lateral direction is somewhat limited. To improve dimensional stability and achieve uniform mechanical strength, a combination of biaxial orientation and cross-linking of the fibers is underway. This fundamental, experimental study, when completed, is expected to find a broader use of gel UHMWPE fibers in aerospace and marine applications.

超高相对分子质量聚乙烯(UHMPVPE)和聚丙烯(UHMWPP)聚合物凝胶纤维，如果取向正确，可以产生与钢铁和碳纤维等一些最坚固的材料相媲美的良好机械性能。凝胶UHMWPE纤维纵向强度较高，但横向强度有限。为了提高尺寸稳定性和实现均匀的机械强度，纤维的双向取向和交联性的组合正在进行中。这项基础性的实验研究完成后，有望发现凝胶UHMWPE纤维在航空航天和海洋应用中的更广泛用途。