KOSEN 한인과학기술자네트워크

Corrosion Prevention Coatings Primary Sponsor: Department of Defense Deadline: 4/11/2001 KEYWORDS TECHNOLOGY AREAS: Materials / Processes OBJECTIVE: Develop Tunable Adhesion Coatings ("Release On Command) for Corrosion Prevention in Aging Aircraft DESCRIPTION: Corrosion of metal structures is estimated to cost many billions of dollars annually. The most common methods of corrosion inhibition or prevention involve the application of heavy surface treatments (paints and primers) or conversion coatings using various metallics that use application and removal techniques that are strictly controlled and regulated due to toxicity and possible carcinogenic properties. Hybrid polymers, such as Ionic self-assembled monolayers (ISAMs), show promise as protective coating materials that offer opportunities for environmentally friendly "release on command" coating systems.The Air Force is seeking new coating systems that reduce the use of volatile organic compounds and hazardous material, such as hexavalent chromium, and offer unique "release on command" properties. The focus of this research is to meet the Air Force’s top priority of corrosion protection, and environmental compliance for aging aircraft coating systems. Ionic self-assembled monolayers (ISAMs) are a recently developed , revolutionary technique that allows detailed structural control of materials at the molecular level combined with ease of manufacturing and low cost. A broad range of layer functionality is possible through incorporation of a wide range of inorganic nanoparticles to control of the electronic, conductive, optical, magnetic, thermal and mechanical properties. High performance polymers may allow excellent thermal stability, mechanical properties as well as processability. New coating processes based on ionic self-assembled monolayers and nanoparticles that 1) offer corrosion inhibition on metal alloys without the use of chromium, 2) neither contains nor generates hazardous materials, 3) offer the potential for "release on command" capabilities, and 4) have demonstrated practical application methods including spraying and non-electrolytic brushing are of interest. PHASE I: A program in this area should address the requirements and goals described above, and provide a demonstration of the viability of the technology developed as proof of concept. Viability of the technology will be quantified in terms the breadth of needs addressed and demonstration of corrosion prevention. The phase one product for a successful effort is the formulation of the coating system, and testing and evaluation of this coating system on aluminum structures. PHASE II: The product from Phase I would be developed through optimization and scale-up efforts to establish large-scale application and removal techniques of the corrosion inhibitor coating system. The product of this phase of the effort will need to be compatible with USAF current methods of aircraft inspection and maintenance. PHASE III DUAL USE APPLICATIONS: The development of tunable adhesive coatings under this effort will have significant government and commercial applications. Protecting structures exposed to the environment is of key concern to any number of institutions, both in the private and government sector. The ability to controllably and cleanly apply and remove protective coatings will have significant impacts on the environmental and personnel costs of maintaining large assets. This technology will be especially beneficial to the aircraft and automobile industries. REFERENCES: 1. G. Decher and J.D. Hong, Makromol. Chem., Makromol. Symp. 46, 321 (1991). 2. O. Onitsuka, A.C. Fou, M. Ferreira, M.F. Rubner, and B.R. Hsieh, J. Appl. Phys.80, 4067 (1996). KEYWORDS: Corrosion, corrosion prvention, adhesion, aerospace aluminum alloys, aging aircrafts. DoD Notice: Between January 2 and February 28, 2001, you may talk directly with the DoD scientists and engineers who authored the solicitation topics, to ask technical questions about the topics. The Topic Author is listed in the box below. For reasons of competitive fairness, direct communication between proposers and topic authors is not allowed after February 28, 2001, when DoD begins accepting proposals under this solicitation. TPOC: Paul Trulove PHONE: 703-696-7787 EMAIL: paul.trulove@afosr.af.mil After February 28, 2001 proposers may still submit written questions about solicitation topics through the SBIR/STTR Interactive Topic Information System (SITIS). If you have general questions about DoD SBIR program, please contact the DoD SBIR Help Desk at (800) 382-4634 or email to SBIRHELP@teltech.com. NOTE: The Solicitations listed on this site are copies from the various SBIR agency solicitations and are not necessarily the latest and most up-to-date. For this reason, you should use the agency link listed below which will take you directly to the appropriate agency server where you can read the official version of this solicitation and download the appropriate forms and rules. The official link for this solicitation is: http://www.acq.osd.mil/sadbu/sbir/sttr01/dod_sttr01.htm. DoD will begin accepting proposals on March 1, 2001. The solicitation closing date is April 11, 2001.