材料科学
石墨烯
复合材料
抗压强度
氧化物
模数
化学工程
纳米技术
工程类
冶金
作者
Xia Luo,Kejing Yu,Kun Qian
标识
DOI:10.1177/0954008317731136
摘要
In this study, the graphene oxide/SiO 2 hybrid materials with different sizes (GO/SiO 2 -80, GO/SiO 2 -170, GO/SiO 2 -250) were prepared via in situ preparation. Different sizes and weight fraction of GO/SiO 2 were added into phenolic resin to prepare phenolic foam composites. The cell properties, morphologies, and mechanism of GO/SiO 2 reinforced PF composites were studied. The results showed that the GO/SiO 2 -80 can improve the cell structure and compressive property obviously than other size nanoparticles. The PF modified with 1 wt% GO/SiO 2 -80 exhibited most uniform cell structure, and it showed a mean cell size of 117 µm and narrow cell size distribution from 50 µm to 225 µm. The obtained PF/(1 wt% GO/SiO 2 -80) also showed an excellent compressive strength and modulus of 0.18 and 3.22 MPa, which has increased by 80% and 61%, respectively, compared to the pure PF. This method may make it possible for using GO/SiO 2 hybrid materials to enhance the cell structure and compression performance of the phenolic foam composites with broader applications.
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