一种高性能 SiO(2)-氧化石墨烯（GO）纳米杂化材料的新型制备方法：SiO(2)-GO 纳米杂化材料填充环氧树脂纳米复合材料的热性能表征。
A novel fabrication of a high performance SiO(2)-graphene oxide (GO) nanohybrids: Characterization of thermal properties of epoxy nanocomposites filled with SiO(2)-GO nanohybrids.
机构信息
Institute of Nano Science and Technology, Kashan University, PO 9231530201, Tehran, Iran.
Department of Surface Coatings and Corrosion, Institute for Color Science and Technology (ICST), PO 16765-654, Tehran, Iran.
出版信息
J Colloid Interface Sci. 2017 May 1;493:111-122. doi: 10.1016/j.jcis.2017.01.016. Epub 2017 Jan 5.
In this study it has been aimed to enhance the thermal resistance of epoxy coating through incorporation of SiO-GO nanohybrids. SiO-GO nanohybrids were synthesized through one-step sol-gel route using a mixture of Tetraethylorthosilane (TEOS) and 3-Aminopropyl triethoxysilane (APTES) silanes. The SiO-GO nanohybrids were prepared at various hydrolysis times of 24, 48 and 72h. Then 0.2wt.% of GO and SiO-GO nanohybrids were separately incorporated into the epoxy coating. Results revealed that amino functionalized SiO nanoparticles with particle size around 20-30nm successfully synthesized on the basal plane of GO. Results showed significant improvement of dispersion and interfacial interactions between nanohybrids and epoxy composite arising from covalent bonding between the SiO-GO and the epoxy matrix. It was found that the thermal resistance of SiO-GO nanohybrids and SiO-GO/Epoxy nanocomposite was noticeably higher than GO and epoxy matrix, respectively.
在这项研究中，通过掺入 SiO-GO 纳米杂化物来提高环氧树脂涂层的耐热性。SiO-GO 纳米杂化物是通过一步溶胶-凝胶法使用四乙氧基硅烷 (TEOS) 和 3-氨丙基三乙氧基硅烷 (APTES) 硅烷的混合物合成的。SiO-GO 纳米杂化物的水解时间分别为 24、48 和 72h。然后，分别将 0.2wt.%的 GO 和 SiO-GO 纳米杂化物掺入到环氧树脂涂层中。结果表明，在 GO 的基面成功合成了粒径约为 20-30nm 的氨基功能化 SiO 纳米粒子。结果表明，由于 SiO-GO 与环氧树脂基质之间的共价键，纳米杂化物和环氧树脂复合材料之间的分散和界面相互作用得到了显著改善。发现 SiO-GO 纳米杂化物和 SiO-GO/环氧树脂纳米复合材料的耐热性明显高于 GO 和环氧树脂基体。
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