Superhydrophobic graphene - polymer coatings for corrosion resistant automotive fluid delivery systems

该项目使用表面工程方法，通过制造具有超疏水表面的石墨烯-聚合物复合材料来提高汽车流体输送系统中使用的燃料和刹车管的耐腐蚀性。对于具有超疏水性能的织构表面的制备，将使用以下方法：a)喷射沉积；b)网状模板；c)复制生物织构。具有高接触角的纹理表面将使用实验室规模的动电位极化和质量损失测量来评估其耐腐蚀性。还将定期进行符合行业标准的盐雾测试。考察了表面形态、织构模式对疏水性的影响以及腐蚀机理。还将测量冲击损伤对织构涂层耐蚀性的影响。这些结果，特别是盐雾试验结果，将被用来推荐生产适用于燃料管理系统中使用的部件的大型表面保护的超疏水涂层。这将使Martinrea能够继续开发新颖、轻便和具有成本效益的涂料。产品质量提高的好处将是增加加拿大汽车相关行业的就业机会，并增强该部门在全球市场上的竞争力。

This project uses surface engineering methods to improve the corrosion resistance of fuel and brake tubes used in automotive fluid delivery systems by fabricating graphene-polymer composites with superhydrophobic surfaces. For the fabrication of textured surfaces with superhydrophobic properties the following methods will be used a) spray deposition; b) mesh templating; c) replication of bio-textures. Textured surfaces with high contact angles will be evaluated for their corrosion resistance using laboratory-scale potentiodynamic polarization, and mass-loss measurements. Industry standard salt-spray tests will also be conducted on a regular basis. The effect of surface morphology, texture patterns on the hydrophobicity and corrosion mechanisms will be examined. The effect of impact damage on corrosion resistance of textured coatings will also be measured. These results, in particular salt-spray test results will be used to make recommendation to produce superhydrophobic coatings for protection of large surfaces suitable for components used in fuel management systems. This will enable Martinrea to continue developing novel, lightweight and cost-effective coatings. The benefits of improved quality of products will be an increase in employment opportunities in the automotive-related industry in Canada and an increase of the competitiveness of this sector in global market place.