【摘要】 探究了不同结构的分散液对石墨烯作用力的大小，并通过显微镜和拉曼光谱对石墨烯分散液进行了相关表征，发现2-羟基萘缩水甘油醚（2-NGE）与石墨烯之间具有最强的萘环π-π相互作用。然后在1,6-二羟基萘缩水甘油醚（1,6-DNGE）中引入2-NGE悬挂链，以4,4’-二氨基二苯甲烷（DDM）为固化剂，探究“内部抗塑化”作用和不同浓度的2-NGE石墨烯分散液对体系的影响。研究结果表明：1,6-DNGE/2-NGE-10%-G5体系展现出了最优异的综合性能，与1,6-DNGE相比，拉伸强度、模量和冲击强度分别提高了12.74%、21.67%和55.74%。这些优异的性能是基于“内部抗塑化”体系的构建和石墨烯的良好分散性而共同实现的，证明了在极低石墨烯负载条件下（0.026 9%）实现了对高性能材料的高效利用。通过这种简便、实用的方法，实现了快速大规模制备高性能石墨烯环氧纳米复合材料。更多还原

【Abstract】 The force of dispersion with different structures on graphene was investigated,and the graphene dispersion was characterized by microscope and Raman spectroscopy. It was found that 2-hydroxynaphthalene glycidyl ether(2-NGE)had the strongest naphthalene ring π-π interaction with graphene.Then,2-NGE suspension chain was introduced into 1,6-dihydroxynaphthalene glycidyl ether(1,6-DNGE),and 4,4’-diaminodiphenylmethane(DDM)was used as curing agent,the effect of“internal anti-plasticization”and the effect of 2-NGE graphene dispersion with different concentrations on the system were investigated. The research results showed that 1, 6-DNGE/2-NGE-10%-G5system exhibited the best comprehensive performance. Compared with 1, 6-DNGE,the tensile strength,modulus and impact strength increased by 12.74%,21.67% and 55.74%,respectively. These excellent properties were achieved based on the construction of the“internal anti-plasticization”system and the good dispersion of graphene,demonstrating that the efficient utilization of high-performance materials was realized under the condition of extremely low graphene loading(0.026 9%).Through this simple and practical method,the rapid and large-scale preparation of high performance graphene epoxy nanocomposites was achieved.更多还原