公开(公告)号：US20170044379A1

公开(公告)日：2017-02-16

申请号：US15233029

申请日：2016-08-10

Applicant: Worcester Polytechnic Institute

Inventor： Amy M. Peterson ,  Aaron R. Sakulich ,  Yixi Chen ,  Chris T. Xia

IPC: C09D5/08 ,  E04C5/01 ,  C09D7/12

CPC classification number: C09D5/086 ,  C09D5/00 ,  C09D7/63 ,  E04C5/015

Abstract: A self-healing coating for reinforcing steel embedded in concrete includes emulsion derived microcapsules having a healing agent and adapted for dispersion through a liquid coating medium for application on a structural steel surface to form a coating for corrosion prevention. The microcapsule particles are dispersed in the coating medium for being disposed on the surface and are configured to rupture and release the healing agent onto the surface in response to a compromise of the coating, such as being dropped or dragged on a construction site. The self-healing agent, such as Tung oil, complements the protective properties of the coating medium by flowing into regions where the coating medium has been scraped off, flaked off, or otherwise undergone compromise. Alternatively, post-installation corrosive influences, such as rust and oxidation, can also cause rupture of the particles to abate corrosion in the concrete-encased steel members.

Abstract translation: 用于加固混凝土中的钢筋的自修复涂层包括具有愈合剂的乳液衍生的微胶囊，并适于通过液体涂布介质分散在应用于结构钢表面上以形成用于防腐蚀的涂层。 微胶囊颗粒分散在涂覆介质中以便布置在表面上并且被配置为响应于涂层的损害而破坏并释放愈合剂到表面上，例如在施工现场上掉落或拖动。 自愈剂如桐油，通过流入涂层介质被刮去，剥落或以其他方式受损的区域，补充了涂层介质的保护性能。 或者，安装后的腐蚀性影响，例如锈蚀和氧化，也可能导致颗粒破裂，以减少混凝土包裹的钢构件的腐蚀。