ATO/GO纳米复合材料的制备及抗静电防腐性能研究

Preparation of the Tin Antimony Oxide-Graphene Oxide Nanocomposite and its Application in Waterborne Coating

摘要:

以氧化石墨烯(GO)作为前体，通过氨丙基三乙氧基硅烷将氧化锡锑（ATO）锚定到氧化石墨烯片层上，制备得到氧化锡锑-氧化石墨烯纳米复合材料（ATO/GO）。通过XRD，XPS和SEM对其结构进行测试。并研究了ATO/GO含量对水性环氧涂料（AE）防腐及抗静电性能的影响。结果表明：随ATO/GO含量的增加，复合涂料表面电阻降低，ATO/GO含量大于3%时，表面电阻降低至108Ω以下，达到了抗静电的使用要求；当ATO/GO含量为3%时，漆膜水蒸气透过率降低至（62.13g/m2 h），具有最低的腐蚀电流密度（Icorr=3.73E-9 A/cm2）和最高的腐蚀电压（Ecorr=-0.19926v），防腐效率与空白样相比提高了99.95%。

Abstract:

Tin antimony oxide-graphene oxide (ATO/GO) sheet hybrids are fabricated using GO as a precursor, then anchoring ATO on GO sheets with the help of 3-aminopropyltriethoxysilane. Scanning transmission electron microscope (SEM), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) are performed on the resultant composites. By using ATO/GO as fillers, the effect of ATO/GO content on the anticorrosion and antistatic properties of waterborne epoxy coatings (AE) are researched. The results show that the surface resistance of composite coating increase as ATO/GO content is increasing. When m (ATO/GO) =3wt%, water vapor transmittance of coating decrease to 62.13g/(m2?h) , and has lowest corrosion current density (Icorr=3.73E-9 A/cm2) and Maximum corrosion voltage (Ecorr=-0.19926v), anticorrosive efficiency increased by99.95% compared with blank sample.