Biobased Flame Retardant Epoxy Resins and Composites

生物基阻燃环氧树脂及复合材料

• 批准号: 392273792
• 负责人: Privatdozent Dr. Bernhard Schartel
• 金额: --
• 依托单位: National Natural Science Foundation of China
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2018
• 资助国家: 德国
• 起止时间: 2017-12-31 至 2021-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/392273792?language=en
• 关键词: Biobased; Flame; Retardant; Epoxy; Resins

Exploring renewable bio-based epoxy resin with high-performance and proposing them as new engineering materials is urgent because of the diminishing petroleum oil reserves and environmental concerns. In order to obtain fire-retardant bio-based epoxy resins with high performance, novel bio-based epoxides contain phosphorous will be designed, synthesized and investigated. It is the aim to endow the bio-based epoxide and natural fibre reinforced epoxide biocomposites with inherent flame retardancy. The goal is to obtain excellent heat-resistant, flame-retardant, and mechanical properties. Further, these materials are discussed as alternatives or partly replacement of bisphenol A containing educts such as bis(4-hydroxyphenylene)-2,2-propane. We explore raw bio-base materials with rigid chemical structure such as eugenol, resveratrol, caffeic acid and react them with phosphorus compounds to obtain flame retardant bio-thermosetting materials. Further, we go for ramie fibre reinforced composites. The natural fibres are modified to improve their compatibility as well as their fire performance; simple treatment will be applied as well as a layer-by-layer coating. Comprehensive and multimethodical investigation will yield an understanding of the pyrolysis, flammability, and fire behaviour of the epoxy resins and composites with respect to the fire performance and the flame retardancy achieved in different fire scenarios. The modes of action will be identified and as far as possible quantified; by the means of comparing systematically varied materials, the structure-property relationships will be investigated. The most promising approaches are identified. Apart from the scientific objectives this project crucially stimulates the mobility of the involved researchers. Five months guest stays in the working groups will enable the scientific project employee to get a comprehensive knowledge on synthesis and preparation of advanced bio-based epoxy resins, preparation of biocomposites, and investigating their decomposition, flammability, and fire behaviour, and thus will promote the international scientific education as well.

随着石油资源的日益枯竭和环境问题的日益严重，开发高性能的可再生生物基环氧树脂并将其作为新型工程材料已迫在眉睫。为了获得高性能的阻燃型生物基环氧树脂，本文设计、合成和研究了新型含磷生物基环氧化合物。目的是赋予生物基环氧化物和天然纤维增强的环氧化物生物复合材料固有的阻燃性。目标是获得优异的耐热性、阻燃性和机械性能。此外，这些材料被讨论为含双酚A的离析物如双（4-羟基亚苯基）-2，2-丙烷的替代物或部分替代物。我们探索具有刚性化学结构的生物基原料，如丁香酚、白藜芦醇、咖啡酸，并将其与磷化合物反应，得到阻燃生物热固性材料。此外，我们还研究了苎麻纤维增强复合材料。对天然纤维进行改性，以改善其相容性和防火性能;将进行简单处理以及逐层涂层。全面和多方法的调查将产生的热解，可燃性和环氧树脂和复合材料的防火性能和阻燃性方面的火灾行为在不同的火灾场景中实现的理解。将确定作用模式并尽可能量化;通过系统比较各种材料，研究结构-性能关系。确定了最有前途的方法。除了科学目标之外，该项目还极大地促进了参与研究人员的流动性。在工作组的五个月的客座逗留将使科学项目员工能够全面了解先进生物基环氧树脂的合成和制备，生物复合材料的制备，以及对其分解，可燃性和火灾行为的研究，从而促进国际科学教育。