详情

当前位置：首页> 全球交通科研项目数据库 >详情

Development of an Intrinsically Conductive Polymer-Based Low-Cost, Heavy-Duty, and Environmentally-Friendly Coating System for Corrosion Protection of Structural Steels

项目名称：	Development of an Intrinsically Conductive Polymer-Based Low-Cost, Heavy-Duty, and Environmentally-Friendly Coating System for Corrosion Protection of Structural Steels
摘要：	This project will develop and demonstrate the application of a polymer-based, low-cost and environmentally-friendly coating system for the corrosion protection of structural steels in highway structures. Work in Stage 1 will focus on laboratory development and evaluation of the coating system based on intrinsically conducting polymers (ICP). Promising ð-conjugated polymers will be produced and doped into ICPs using chemical treatment. Using scanning Kelvin probe force microscopy and electrochemical impedance spectroscopy, anti-corrosion capabilities of the polymers will be evaluated when coated on steel samples as the primer layer. The electrical potential of the substrate surface will be measured to evaluate the steel-ennobling capability of the primer. The electronic and ionic conductivities of the primer in the substrate electrolyte system will be determined to evaluate respectively the oxygen smearing-out capability (for reducing coating delamination) and the smart corrosion-healing capability of the primer. Three ASTM standard tests: B117 (Salt Spray Test), D5894 (Cyclic Weathering Exposure Test), and D4541 (Pull-Off Strength Test) will be conducted to evaluate the overall corrosion durability under different corrosive conditions (B117 and D5894) and the tensile adhesion to substrate surface (D4541) of the coating system. Work in Stage 2 will focus on field evaluation and technology transfer of ICP-based coating system. Working in collaboration with the Maryland State Highway Administration (SHA), two field sites will be chosen for evaluating the in-service durability of the developed ICP-based coating system. The blistering, rusting, undercutting, and pull-off strength of the coated steel panels will be evaluated following similar procedures and criteria as the ASTM standards B117, D5894 and D4541. Based on test performance results, necessary modifications and improvements will be made to the formulation, doping techniques, and coating-application procedures of the prototype coating system. Finally, technology transfer efforts will also be initiated in collaboration with Maryland SHA by demonstrating the application of the coating system in field conditions. The coating system will be further evaluated in the North East Protective Coating Committee (NEPCOAT) states and, if successful, plans for nationwide implementation will be developed.
状态：	Active
资金：	107458.00
资助组织：	Federal Highway Administration<==>American Association of State Highway & Transportation Officials (AASHTO)<==>National Cooperative Highway Research Program (NCHRP) Innovations Deserving Exploratory Analysis (IDEA)
项目负责人：	Jawed, Inam
执行机构：	Illinois Institute of Technology, Chicago
开始时间：	20141209
主题领域：	Bridges and other structures；Highways；I30: Materials