SBIR Phase I: Surface Engineering of Metals with Plasma Polymers

SBIR 第一阶段：用等离子体聚合物对金属进行表面工程

• 批准号: 0060482
• 负责人: Giles Dillingham
• 金额: $ 9.27万
• 依托单位: BRIGHTON TECHNOLOGIES GROUP, INC
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-01-01 至 2001-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0060482&HistoricalAwards=false
• 关键词: SBIR; Phase; Surface; Engineering; Metals

This Small Business Innovation Research (SBIR) Phase I project will conduct research to replace current environmentally damaging metal pretreatment processes with an environmentally benign process. In the approach the metal surface is etched then coated with a sub-micron film of plasma polymerized SiO2. Current metal pretreatment processes for painting and adhesive bonding perform well, but generate tremendous volumes of wastes, including hexavalent chromium and various inorganic acids. To obtain performance superior to the current state-of-the-art wet chemical surface treatments, the surface chemistry and morphology of the plasma polymerized films need to be tailored for specific interactions with the adhesive. Effects of variables including substrate chemistry, monomer chemistry, and ion kinetic energy on surface chemistry and morphology of plasma polymers will be determined. Then, the effect of the resulting structure on the strength and durability of adhesive joints will be determined. By combining in-situ analytical techniques with accelerated aging and mechanical testing of adhesive specimens, a superior, environmentally benign process based on plasma polymerization will be developed and commercialized. These primers will have well understood morphologies and surface compositions tailored to the adhesive chemistry through control of the deposition conditions and/or chemical derivitization of the plasma polymer surface.

这个小型企业创新研究（SBIR）第一阶段项目将进行研究，以一种环境友好的工艺取代目前对环境有害的金属预处理工艺。在该方法中，金属表面被蚀刻，然后涂上一层亚微米等离子体聚合SiO2薄膜。目前用于油漆和粘合剂粘合的金属预处理工艺性能良好，但会产生大量的废物，包括六价铬和各种无机酸。为了获得优于当前最先进的湿化学表面处理的性能，等离子体聚合膜的表面化学和形态需要根据与粘合剂的特定相互作用进行定制。包括底物化学、单体化学和离子动能在内的变量对等离子体聚合物表面化学和形态的影响将被确定。然后，确定所得到的结构对粘接接头强度和耐久性的影响。通过将原位分析技术与加速老化和粘接试样的力学测试相结合，将开发出一种基于等离子体聚合的优越、环保的工艺并实现商业化。通过控制沉积条件和/或等离子体聚合物表面的化学衍生化，这些引物将具有很好的理解的形态和表面成分，以适应粘合剂的化学性质。