SBIR Phase II: Surface Engineering of Metals with Plasma Polymers

SBIR 第二阶段：用等离子体聚合物对金属进行表面工程

• 批准号: 0216100
• 负责人: Giles Dillingham
• 金额: $ 49.92万
• 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: 2002
• 资助国家: 美国
• 起止时间: 2002-09-15 至 2004-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0216100&HistoricalAwards=false
• 关键词: SBIR; Phase; II; Surface; Engineering

This Small Business Innovation Research (SBIR) Phase II project will replace current environmentally damaging metal pretreatment processes with an environmentally benign process whereby 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）第二阶段项目将取代目前对环境有害的金属预处理工艺，采用一种对环境无害的工艺，对金属表面进行蚀刻，然后涂上一层亚微米等离子体聚合SiO2膜。目前用于涂漆和粘合的金属预处理工艺性能良好，但产生大量废物，包括六价铬和各种无机酸。为了获得上级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针对与粘合剂的特定相互作用进行定制。将确定变量的影响，包括基板化学，单体化学和离子动能等离子体聚合物的表面化学和形态。然后，将确定所产生的结构对粘合接头的强度和耐久性的影响。通过将原位分析技术与粘合剂样品的加速老化和机械测试相结合，将开发和商业化一种基于等离子体聚合的上级、环境友好的工艺。这些底漆将具有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而定制为粘合剂化学的充分理解的形态和表面组成。