层状双氢氧化物-石墨烯杂化材料的调控合成及其协同抑烟减毒机理

The research about design, synthesis, structure characterization and electrochemical performance of layered double hydroxides-graphene hybrids have made significant breakthrough at home and abroad. But, the smoke suppression and toxicity reduction of layered double hydroxides-graphene hybrids for polyurethane composites is seldom reported in the combustion process. A series of layered double hydroxides-graphene hybrids with smoke suppression and toxicity reduction properties for flame retardant polyurethane composites would be prepared in this project. The composition, structure and morphology of layered double hydroxides-graphene hybrids would be characterized. Then the influence of layered double hydroxides-graphene hybrids on smoke suppression and toxicity reduction properties for flame retardant polyurethane composites would be carried out at different combustion mode. And, the gas emission concentration, chemical composition and production process of fire smoke should be studied furtherly. The structure evolution behavior of flame retardant polyurethane composite affected by layered double hydroxides-graphene hybrids would be investigated in the combustion process. The interrelation would be established among composition, structure, morphology of layered double hydroxides-graphene hybrids-structure evolution behavior of flame retardant polyurethane composite and gas emission concentration, chemical composition, production process of fire smoke. The research results can enrich the graphene functional materials, which has scientific significance and potential applications.

国内外对层状双氢氧化物-石墨烯杂化材料的设计、合成、结构表征等方面的研究已取得重要突破，但在其对聚合物燃烧过程中的抑烟减毒方面的研究鲜有报道。本项目旨在构筑对阻燃聚氨酯具有抑烟减毒作用的层状双氢氧化物-石墨烯杂化材料，在对其组成、结构与形貌等研究的基础上，研究不同燃烧条件下杂化材料对阻燃聚氨酯的火灾烟气排放浓度、化学组成和生成过程的影响规律；研究燃烧过程中阻燃聚氨酯凝聚相结构动力学演变，重点研究聚氨酯、阻燃体系和层状双氢氧化物-石墨烯杂化材料之间的相互作用对火灾烟气生成过程的影响。建立不同燃烧条件下层状双氢氧化物-石墨烯杂化材料组成、结构、形貌与阻燃聚氨酯凝聚相结构演变动力学、火灾烟气组成及生成过程之间的本质联系，揭示层状双氢氧化物-石墨烯杂化材料对阻燃聚氨酯的抑烟减毒机理。研究结果可以丰富无机功能材料研究领域，既具有科学意义又具有潜在的应用前景。

本项目构筑了对阻燃聚氨酯具有抑烟减毒作用的层状双氢氧化物-石墨烯杂化材料，在对其组成、结构与形貌等研究的基础上，研究了不同燃烧条件下杂化材料对阻燃聚氨酯的火灾烟气排放浓度、化学组成和生成过程的影响规律；研究了燃烧过程中阻燃聚氨酯凝聚相结构动力学演变，重点研究了聚氨酯、阻燃体系和层状双氢氧化物-石墨烯杂化材料之间的相互作用对火灾烟气生成过程的影响。建立了不同燃烧条件下层状双氢氧化物-石墨烯杂化材料组成、结构、形貌与阻燃聚氨酯凝聚相结构演变动力学、火灾烟气组成及生成过程之间的本质联系，揭示了层状双氢氧化物-石墨烯杂化材料对阻燃聚氨酯的抑烟减毒机理。研究结果丰富了无机功能材料研究领域，具有重要的科学意义及潜在应用前景。