《化学与黏合》
 
 
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2018年 先后5为期

氧化石墨烯/聚氨酯复合涂料的筹措及他性质
椰 辉
(波罗的海船舶职业学院,山西 葫芦岛 125105)
摘 要:采取改进的Hummers法制得氧化石墨烯(GO),采取乳液聚合法制得GO/聚氨酯(PU)复合涂料。对产物的状况和布局进行了特点,着眼了GO补充量对复合涂料性能的影响。结果表明,GO呈片状多孔结构,GO/PU涂层致密性优于PU涂层;氧化反应在引入含氧基团的同时,破坏了自然石墨的晶型;GO在狱中分散性较好;顶GO质分数为1 %时,涂层吸水率大幅下跌,强度可达3 H,自腐蚀电位为-540 mV,自腐蚀电流密度为0.12μA/cm2,防腐性能达到最佳。
关键词:氧化石墨烯;聚氨酯;乳液聚合;石材
 
官方图分类号:TQ637.2 文献标识码:A 文章编号:1001–0017 (2018)05–0351-04

Preparation and Properties of Graphene Oxide/polyurethane Composite Coating

LI Hui

(BoHai Shipbuilding Vocational, Huludao 125105, China)

Abstract: The graphene oxide (GO) was prepared by modified Hummer method; subsequently, the GO/polyurethane (PU) composite coating was prepared by emulsion polymerization. The morphology and structure of the products were characterized. The effect of GO content on the performance of GO/PU composite coating was studied. The results showed that the GO was sheet and multihole; the compactness of GO/PU was better than PU; the oxygen-containing groups were introduced in GO and the crystal form of the natural graphite was destroyed by oxidation reaction; the GO dispersed well in water; when the mass fraction of GO was 1%, the water absorption of coating was greatly declined, the hardness of coating could reach 3H, the self-corrosion potential and self-corrosion current density of the coating was -540mV and 0.049uA/cm2 respectively, and the best corrosion resistance of the coating was achieved.

Key words: Graphene oxide; polyurethane; emulsion polymerization; coating

 
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