Browsing by Author "Ye, Lujie"

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    Self-Healing Corrosion Resistant Coatings
    (Office of the Vice Chancellor for Research, 2014-04-11) Jones, Alan; Ye, Lujie
    According to the U.S. Federal Highway Administration, the annual cost of corrosion in the United States is estimated at $276 billion. The most common way to protect materials from corrosion is with coatings, including organic (paint), ceramic and metallic coatings. During use, micro-cracks form in coatings resulting in exposure to the environment, which can lead to catastrophic failure of critical components. Our group is developing low-cost self-healing technology to significantly extend the service life of coatings and the components they protect. Potential healing agents were evaluated and an air-drying triglyceride (linseed oil) was identified as the candidate healing agent. Self-healing coatings are fabricated using urea-formaldehyde encapsulated linseed oil and are evaluated for mechanical performance, corrosion resistance, and self-healing performance. Research into optimization and long term durability and performance of low-cost self-healing coating materials is ongoing.
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    Towards commercialization of self-healing technology in epoxy coating
    (2014) Ye, Lujie; Jones, Alan S.; Zhang, Jing; Zhu, Likun; Chen, Jie
    This work is focused on developing viable self-healing coatings, especially considering the viability of the coating in a commercial context. With this in mind, finding low cost healing agents, with satisfactory healing and mechanical properties as well as adapting the healing system for use in coatings was required. Seven potential healing agents were evaluated and an air-drying triglyceride (linseed oil) was identified as the candidate healing agent. Different encapsulation techniques were evaluated and ureaformaldehyde microcapsules were chosen as the candidate encapsulation technique. Self-healing coatings were fabricated using urea-formaldehyde encapsulated linseed oil. EIS, SEM and TGA technologies were used to evaluate mechanical performance, corrosion resistance, and self-healing performance.