石墨烯对海上风电叶片底漆的性能影响研究
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摘要
通过在涂层体系中添加石墨烯或用石墨烯代替防锈颜料的方法,确定石墨烯在风电叶片底漆中的作用,并明确最佳用量。选用环氧改性聚氨酯体系的海上风电叶片底漆,分别添加不同比例的石墨烯或使用石墨烯部分代替体系中的防锈颜料,研究2种情况下底漆的各项性能。结果表明:石墨烯对底漆耐酸性、耐盐雾性有显著的影响。将石墨烯添加至现有的涂层体系中时,底漆的耐酸性和耐盐雾性随着石墨烯用量的增加呈现先提高后降低的趋势;当使用石墨烯部分替代防锈颜料时,漆膜的耐盐雾、耐酸性明显下降。石墨烯在防腐底漆的使用中,与现有的涂层体系相匹配效果更好,适量添加石墨烯可改善底漆的防腐性能。相反,石墨烯部分替代防锈颜料会降低涂层的性能。
The function of graphene in wind turbine blade primer are analyzed by means of adding graphene to the primer or replacing anticorrosive fillers with graphene. In this article,the epoxy modified polyurethane system is provide as the primer for turbine blade. Adding different amount of graphehe or using graphene as partially replacement of the anticorrosive fillers in the primer,the properties of the primers are studied. The results showed that graphene had significant influence on the anti-acid and salt spray performances of the primer. Specifically,when adding graphene to the wind turbine blade primer,both anti-acid and salt spray behaviors had the tendency of first increase then decrease. When using graphene to partially replace the anticorrosive fillers,both of anti-acid and salt spray performance of the primer decreased dramatically. According to the testing results,the addition of the suitable amount of graphene to the coating could improve the anticorrosive performance of the primer. However,the partially replacement of anticorrosive fillers by graphene could decrease all the properties of primer.
The function of graphene in wind turbine blade primer are analyzed by means of adding graphene to the primer or replacing anticorrosive fillers with graphene. In this article,the epoxy modified polyurethane system is provide as the primer for turbine blade. Adding different amount of graphehe or using graphene as partially replacement of the anticorrosive fillers in the primer,the properties of the primers are studied. The results showed that graphene had significant influence on the anti-acid and salt spray performances of the primer. Specifically,when adding graphene to the wind turbine blade primer,both anti-acid and salt spray behaviors had the tendency of first increase then decrease. When using graphene to partially replace the anticorrosive fillers,both of anti-acid and salt spray performance of the primer decreased dramatically. According to the testing results,the addition of the suitable amount of graphene to the coating could improve the anticorrosive performance of the primer. However,the partially replacement of anticorrosive fillers by graphene could decrease all the properties of primer.
引文
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[2]LEE C K.Corrosion and wear-corrosion resistance properties of electroless Ni-P coatings on GFRP composite in wind turbine blades[J].Surface&Coatings Technology,2008,202(19):4868-4874..
[3]ZHANG S Z,DAM-JOHANSEN K,JR B P,et al.Rain erosion of wind turbine blade coatings using discrete water jets:Effects of water cushioning,substrate geometry,impact distance,and coating properties[J].Wear,2015,328-329(15):140-148.
[4]李颖华.聚天门冬氨酸酯涂料及其在风电叶片上的应用[J].上海涂料,2014,52(7):32-35.
[5]卢家骐,牟书香,李权舟.风电叶片前缘防护技术进展[J].玻璃钢/复合材料,2015(7):91-95.
[6]徐支有,李一新,陈雷.双组分水性聚氨酯涂料的制备与性能测试[J].中国涂料,2014,21(10):49-54.
[7]BERMAN D,ERDEMIR A,SUMANT A.Few layer graphene to reduce wear and friction on sliding steel surfaces[J].Carbon,2013,54:454-459.
[8]RAMEZABZADEH B,AHMADI A,MAHDAVIAN M.Enhancement of the corrosion protection performance and cathodic delamination resistance of epoxy coating through treatment of steel substrate by a novel nanometric sol-gel based silane composite film filled with functionalized graphene oxide nanosheets[J].Corrosion science,2016,109:182-205.
[9]YU Z X,DI H H,MA Y,et al.Preparation of graphene oxide modified by titanium dioxide to enhance the anti-corrosion performance of epoxy coatings[J].Surface and coatings technology,2015,276:471-478.
[10]POURHASHEM S,VAEZI M R,RASHIDI A,et al.Exploring corrosion protection properties of solvent based epoxy-graphene oxide nanocomposite coatings on mild steel[J].Corrosion science,2017,115:78-92.
[11]LIU D,ZHAO W J,LIU S,et al.Comparative tribological and corrosion resistance properties of epoxy composite coatings reinforced with functionalized fullerene C60 and graphene[J].Surface and coatings technology,2016,286(25):354-364.
[12]MO M T,ZHAO W J,CHEN Z F,et al.Excellent tribological and anti-corrosion performance of polyurethane composite coatings reinforced with functionalized graphene and graphene oxide nanosheets[J].RSC advance,2015,5:56486-56497.
[13]王晓,王华进,李志士,等.石墨烯在涂料中的应用进展[J].中国涂料,2017,32(2).
[14]周媛,陈先,汪杰,等.氧化石墨烯在防腐涂料中的应用研究进展[J].中国涂料,2017,32(9).
[15]黄坤,曾宪光,裴嵩峰,等.低压高效石墨烯复合涂料的电热性能研究[J].涂料工业,2016,46(4):13-17.
[16]赖奇,罗学萍.石墨烯导电涂膜的制备研究[J].非金属矿,2014,37(3):28-29.
[17]苏睿.石墨烯分散液的制备与应用研究进展[J].广东化工,2014,41(8):190-191.
[18]周银,侯朝霞,王少洪,等.石墨烯的制备方法及发展应用概述[J].兵器材料科学与工程,2012,35(3):86-90.