Preparation and Characterization of Zirconia-Network Film Formation on Fibrous Substrates by Sol-Gel Processing

溶胶-凝胶法在纤维基材上形成氧化锆网络薄膜的制备和表征

• 批准号: 8703479
• 负责人: R. Subramanian
• 金额: --
• 依托单位: Washington State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1987
• 资助国家: 美国
• 起止时间: 1987-01-01 至 1988-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8703479&HistoricalAwards=false
• 关键词: Preparation; Characterization; Zirconia; Network; Film

Synthetic fibers are used extensively in composite materials. They have been considered for reinforcement in cement. However, the silicate network glass reacts with cement, which is strongly alkaline (PH 12.5). Consequently, more expensive glass fibers containing zirconia were developed for improved chemical stabiliity of the fibers for this application. The PI proposes to use basalt fibers for cement reinforcement. Basalt is a naturally occurring relatively inexpensive material widely available in the drawing basalt fibers. To improve the chemical stability of basalt fibers, the PI proposes to form thin films of silica-zirconia by sol-gel processing. This is in contrast to the alloying route other researchers have taken in the use of glass fibers. Both the application and approach are novel. Industry has expressed strong interest in this work as well as other applications of basalt fibers.

合成纤维广泛应用于复合材料中。它们曾被考虑用于水泥中的加固。然而，硅酸盐网络玻璃与水泥发生反应，水泥是强碱性的(PH值12.5)。因此，为了提高纤维的化学稳定性，人们开发了更昂贵的含有氧化锆的玻璃纤维。PI建议使用玄武岩纤维进行水泥加固。玄武岩是一种天然存在的相对廉价的材料，广泛存在于拉丝玄武岩纤维中。为了提高玄武岩纤维的化学稳定性，PI提出了通过溶胶-凝胶法形成二氧化硅-氧化锆薄膜的方法。这与其他研究人员在使用玻璃纤维时采用的合金化路线形成了鲜明对比。无论是应用还是方法都是新颖的。业界对这项工作以及玄武岩纤维的其他应用表示了强烈的兴趣。