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Novel Polyurethane Rigid Foam/Organically Modified Iron Oxide Nanocomposites

机译:新型聚氨酯刚性泡沫/有机改性氧化铁纳米复合材料

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Magnetic polyurethane rigid foam nanocomposites were synthesized by incorporation of surface functionalized iron oxide nanoparticles with 3-aminopropyltriethoxysilane (APTS). Magnetite nanoparticles (MNPs) and Fe3O4@APTS were synthesized via co-precipitation and sol-gel methods, respectively. The main purpose of the surface modification of MNPs was the formation of hydrogen bond between amino groups of Fe3O4@APTS with the urethane groups to improve magnetic and thermal properties of the nanocomposites. The effect of different amounts of Fe3O4@APTS on the thermal and magnetic behavior of resultant nanocomposite was investigated and the optimum percentage of nanostructure in foam formulation was defined. (C) 2015 Society of Plastics Engineers
机译:将表面官能化的氧化铁纳米颗粒与3-氨丙基三乙氧基硅烷(APTS)结合,制备了磁性聚氨酯硬质泡沫纳米复合材料。磁铁矿纳米颗粒(MNP)和Fe3O4@APTS分别采用共沉淀法和溶胶-凝胶法合成。MNPs表面改性的主要目的是在其氨基之间形成氢键Fe3O4@APTS添加氨基甲酸酯基团,以改善纳米复合材料的磁性和热性能。不同剂量的Fe3O4@APTS对所得纳米复合材料的热性能和磁性进行了研究,确定了泡沫配方中纳米结构的最佳比例。(C) 2015年塑料工程师学会

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