A reduced graphene oxide-borate compound-loaded melamine sponge/silicone rubber composite with ultra-high dielectric constant.
A reduced graphene oxide-borate compound-loaded melamine sponge/silicone rubber composite with ultra-high dielectric constant.
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一种还原氧化石墨烯-硼酸盐复合物负载的超高介电常数三聚氰胺海绵/硅橡胶复合材料
作者：
Herein, at first, graphene oxide (GO) was prepared by a modified Hummers' method, compounded with borates and then loaded onto a melamine sponge (MS) skeleton by an impregnation–reduction method to obtain a reduced graphene oxide (rGO)–borate compound (rGB)-loaded MS. Then, MS/rGB/silicone rubber (SR) composites were prepared by a vacuum infusion process. Moreover, the microstructures, electrical conductivity, and dielectric properties of the composites were investigated. The results showed that rGO presented a sheet-like structure, compounding with borates produced during the reduction of GO by sodium borohydride. rGB was co-loaded onto the MS skeleton, and a three-dimensional percolation network was successfully constructed in the MS/rGB/SR composite. In addition, there was an efficient synergistic effect between rGO and borates, which significantly improved the dielectric constant of the composites. At the rGO volume fraction of 1.89 vol%, the composite had the volume resistivity of 6.57 × 104 Ω cm, the ultra-high dielectric constant of 2.71 × 104 with the dielectric loss of 1.36 at 1 kHz, and the relatively low percolation threshold of 0.815 vol%. Furthermore, the composite exhibited high compression sensitivity at low compressive strains. A reduced graphene oxide–borate compound-loaded melamine sponge/silicone rubber composite with the ultra-high dielectric constant of 2.71 × 104.
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还原聚苯胺修饰的还原氧化石墨烯/聚酰亚胺纳米复合薄膜具有增强的介电性能和热稳定性
DOI：
10.1016/j.compositesa.2018.03.035
发表时间：
2018-06-01
影响因子：
8.7
作者：
Feng, Hao;Fang, Xinliang;Zhuang, Qixin
通讯作者：
Zhuang, Qixin
影响因子：
17.6
作者：
Jin, Youngho;Xia, Ning;Gerhardt, Rosario A.
通讯作者：
Gerhardt, Rosario A.
影响因子：
5.2
作者：
Gumus, O. Yunus;Unal, H. Ibrahim;Sari, Bekir
通讯作者：
Sari, Bekir
影响因子：
6.6
作者：
Ozkan, Betul Cicek;Soganci, Tugba;Ak, Metin
通讯作者：
Ak, Metin
影响因子：
4.5
作者：
Dalle Vacche, Sara;Oliveira, Fabiane;Manson, Jan-Anders E.
通讯作者：
Manson, Jan-Anders E.