Tailoring of self-healing behavior and dimensional stability of rubber materials

橡胶材料自修复行为和尺寸稳定性的定制

• 批准号: 202496156
• 负责人: Dr. Frank Böhme
• 金额: --
• 依托单位: Leibniz-Institut für Polymerforschung Dresden (IPF)
• 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/202496156?language=en
• 关键词: Tailoring; self; healing; behavior; dimensional

The project is devoted to the introduction and investigation of basic principles of self-healing for covalently cross-linked rubber materials. It combines synthesis and fabrication approaches and includes investigations of the material specific principles of synthesis, rubber fabrication, and final rubber properties. To realize the self-healing characteristics in the rubber material, we plan to exploit reversible bond forming techniques like hydrogen and ionic interactions in irreversible sulfur or peroxide cross-linked polymer networks. To bring perspective in this burgeoning field of self-healing in polymers, we aim at understanding the influence of hydrogen and ionic bonds in the direction of reinforcement and healing nature in the selected model elastomers (XNBR). The development and characterization of such self-healing polymers have been targeted to achieve a fundamental understanding of the micro- and macroscale changes in the constituent polymer. The material properties of the fabricated rubbers and their processing characteristics will be explored in detail with respect to standards in rubber technology using several physically based advanced characterization methods and approaches. The efficiency of the self-healing approaches with respect to rubber applications will also be studied, amongst others with recently improved methods of measuring the resistance against stationary crack propagation (e.g., tearing energy). Such studies will not be a selfcontained scientific issue; they are an essential “acid test” of the primary project goals.

该项目致力于介绍和研究共价交联橡胶材料自愈合的基本原理。它结合了合成和制造方法，包括材料的具体合成原理，橡胶制造和最终橡胶性能的研究。为了实现橡胶材料的自修复特性，我们计划利用可逆的键形成技术，如不可逆硫或过氧化物交联聚合物网络中的氢和离子相互作用。为了在这个新兴的聚合物自修复领域带来前景，我们的目标是了解氢键和离子键在所选模型弹性体（XNBR）的增强和愈合性质方向上的影响。这种自修复聚合物的开发和表征已经有针对性地实现对组成聚合物的微观和宏观变化的基本理解。制造橡胶的材料特性和它们的加工特性将被详细探讨，相对于橡胶技术的标准，使用几种基于物理的先进表征方法和途径。还将研究关于橡胶应用的自修复方法的效率，其中包括最近改进的测量抵抗静态裂纹扩展的方法（例如，撕裂能）。这些研究将不是一个自成一体的科学问题;它们是对主要项目目标的一个重要的“酸性测试”。