
应用研究
第43卷第11期 2013年11月
涂料工业
PAINT&COATINGSINDUSTRY
Vol.43No.11 Nov.2013
改性重质碳酸钙制备环氧涂料及其涂层性能研究
何毅2,罗智,陈春林,张羽
(1.油气藏地质及开发工程国家重点实验室(西南石油大学),成都610500:
2.西南石油大学化学化工学院,成都610500:
3.西南油气田物资公司,成都610000)
摘要:利用-(2,3-环氧丙氧基)丙基三甲氧基硅烷(KH560)对重质碳酸钙表面进行接枝改性,并以改性后的重钙为填料制备了环氧涂层。采用傅里叶变换红外光谱(FT-IR)、扫描电子显微镜(SEM)、热重分析仪(TG)和粒径分析对改性重钙进行表征,使用电化学阻抗谱(EIS)、高温高压釜等设备测试涂层的附着力和耐腐蚀性等性能。结果表明:重钙表面化学键合了KH560有机官能团,提高了环氧涂层的相容性、耐腐蚀性和热稳定性
关键词:重质碳酸钙:表面改性:环氧树脂:涂层:高温高压
中图分类号:TQ635.2
文献标识码:A
文章编号:0253-4312(2013)11-0064-07
ResearchofProperties ofEpoxyResin/SurfaceModified
Heavy CalciumCarbonate CompositeCoating
He Yi'.2,Luo Zhi,Chen Chunlin’,Zhang Yu
(1.State Key Lab of Oil and Gas Reservoir Geology and Exploitation (Southavesr Petroleum Unirersity),Chengdu 610500,China;2.School of Chemistry and Chemical
Engineering,SoutharestPetroleumUnirersity,Chengdu610500,China;
3. Materials Company of Southcest Oil & Gas Field Company,Chengdu 610000,China)
Abstract:Heavy calcium carbonate was surface modified with grafting of silane coupling agent KH560,which was then formulaed with epoxy resin to prepare a composite coating filn by thermal curing process. The modified heavy CaCO,were characterized by infrared spectrum(FT-IR),scanning electron microscope (SEM)and thermogravimetry (TG) andparticle size analysis. The properties of epoxy resin/heavy calcium carbonate coatings, such as adhe-sion,corrosion resistance,were detected by electrochemical impedance spectroscopy (EiS), autoclave and other instruments. The results showed that KH560 was chemically bound on the surface of calcium carbonate, and the properties of the coatings were improved in compatibili-ty,corrosion-resistance and thermal stability.
Key Words:heavy calcium carbonate; surface modification; epoxy resin; composite coat ing; high temperature and high pressure
[基金项目】油气蔬地质及开发工程国家重点实验室开放基金PLN0806 作者简介:何段(1975一),博士,制教投,从事功能高分子材料方面的研究,
64