Heapocrates: Healing Polymers for preventing Corrosion of Metallic Systems

Heapocrates：用于防止金属系统腐蚀的修复聚合物

• 批准号: 202564587
• 负责人: Dr. Daniel Crespy
• 金额: --
• 依托单位: Max-Planck-Institut für Eisenforschung GmbH (MPIE)
• 依托单位国家: 德国
• 项目类别: Priority Programmes
• 财政年份: 2011
• 资助国家: 德国
• 起止时间: 2010-12-31 至 2014-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/202564587?language=en
• 关键词: Heapocrates; Healing; Polymers; preventing; Corrosion

The project Heapocrates has the ambition to create novel coatings for intelligent corrosion protection and self-healing and unravel the fundamental aspects of the healing and anticorrosive properties upon corrosive attack. There are many causes for corrosive attacks, which can be of physical (e.g. mechanical delamination upon impact, scratches etc…) or chemical nature (imperfections at the interface, e.g. due to contaminations, etc..). Hence, the only useful universal trigger for initiating the self-healing process is the onset of corrosion itself. Typical trigger signals for corrosion are changes in pH, ionic strength and decrease of electrode potential. The latter is the most reliable trigger since it is the most case-selective and the best defined (the potential change is more or less the same under even quite different conditions). Our aim is to synthesize a novel complex self-healing system for the inhibition of corrosion and self-healing of materials attacked by corrosion. The complex 3D structures that we propose to synthesize are based on encapsulated self-healing chemicals in particles or fibers that can be released via a change of potential. Semiconducting polymer shell for the particles and fibers will be prepared as responsive material and a polymerization is the self-healing reaction. The trigger sensitivity, release activity, mobility of reactive species, and healing performance of the materials will be investigated.

Heapocrates项目的目标是创造用于智能腐蚀保护和自我修复的新型涂层，并揭示腐蚀攻击后愈合和防腐性能的基本方面。腐蚀侵蚀的原因有很多，可以是物理性的（例如，冲击时的机械分层、划痕等）或化学性的（例如，由于污染等导致的界面处的缺陷）。因此，启动自我修复过程的唯一有用的通用触发器是腐蚀本身的开始。腐蚀的典型触发信号是pH值、离子强度的变化和电极电位的降低。后者是最可靠的触发器，因为它是最具案例选择性和最好的定义（即使在非常不同的条件下，潜在的变化也或多或少相同）。我们的目标是合成一种新型的复合自修复体系，用于抑制腐蚀和自修复受腐蚀的材料。我们建议合成的复杂3D结构是基于颗粒或纤维中封装的自我修复化学物质，这些化学物质可以通过电位的变化释放出来。半导体聚合物壳的颗粒和纤维将被制备作为响应材料和聚合是自愈合反应。触发敏感性，释放活性，活性物种的流动性，和愈合性能的材料将进行调查。