郑泽禹,魏铭,刘晓芳,李圆,李博,王睿,柯须仁.无溶剂有机硅改性环氧涂料的制备及其性能研究[J].表面技术,2018,47(12):8-13.
ZHENG Ze-yu,WEI Ming,LIU Xiao-fang,LI Yuan,LI Bo,WANG Rui,KE Xu-ren.Preparation and Properties of Solvent-free Silicone Modified Epoxy Coatings[J].Surface Technology,2018,47(12):8-13 |
| 无溶剂有机硅改性环氧涂料的制备及其性能研究 |
| Preparation and Properties of Solvent-free Silicone Modified Epoxy Coatings |
| 投稿时间：2018-07-03 修订日期：2018-12-20 |
| DOI：10.16490/j.cnki.issn.1001-3660.2018.12.002 |
| 中文关键词: 环氧 有机硅 无溶剂 电化学阻抗谱 防腐蚀 涂料 |
| 英文关键词:epoxy silicone solvent-free EIS corrosion protection coating |
| 基金项目:国家自然科学基金（51272191） |
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| Author | Institution |
| ZHENG Ze-yu | 1.School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, China |
| WEI Ming | 1.School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, China |
| LIU Xiao-fang | 1.School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, China |
| LI Yuan | 1.School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, China |
| LI Bo | 2.Zibo Hengshi Technology Development Co., Ltd, Zibo 255088, China |
| WANG Rui | 1.School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, China |
| KE Xu-ren | 1.School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, China |
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| 中文摘要: |
| 目的 改善无溶剂环氧涂料疏水性能及耐候性能，增强其在海洋环境下的应用前景。方法 利用氨基硅油改性环氧树脂，再将其配制成无溶剂环氧清漆。采用红外光谱表征改性结果，通过铅笔硬度测试、画圈附着力测试、柔韧性测试、耐冲击性测试、接触角测试、热失重测试及交流阻抗测试，分别评价涂层的硬度、附着力、柔韧性、耐冲击性、表面能、耐热性和防腐性能，并通过扫描电镜对涂层断面形貌进行分析。结果 环氧树脂与氨基硅油质量比为8∶2时，所得涂料与未改性无溶剂环氧涂料对比，其水接触角由78?提升至108?，柔韧性由1 mm提升至0.5 mm，耐冲击高度由40 cm提升至50 cm，低频阻抗由108 ??cm2提升至109 ??cm2，热失重为50%时的分解温度由387 ℃提升至428 ℃，涂层出现一定分层现象，其硬度由2H降低至H，涂层的综合性能较为优异。但当氨基硅油过量加入（环氧树脂与氨基硅油质量比为7∶3）时，涂层综合性能出现明显下降。结论 适量氨基硅油的加入不仅可以提升无溶剂环氧涂料抗冲击能力、疏水及耐热性能，而且还能使涂层表面更致密，从而增强其对腐蚀介质的阻隔效果。 |
| 英文摘要: |
| The work aims to improve the hydrophobic property and weather resistance of solvent-free epoxy coatings and enhance their application prospects in the marine environment. The solvent-free epoxy resin was modified with amino silicone oil, and then it was formulated into a solvent-free epoxy coating. The modified result was characterized by FTIR. The hardness, adhe-sion, flexibility, impact resistance, surface energy, heat resistance and corrosion resistance of the coating were respectively evaluated by pencil hardness test, circle adhesion test, flexibility test, impact resistance test, contact angle test, thermal weight loss test and EIS test. The cross-section morphology of the coating was observed by SEM. When the ratio of epoxy resin to amino silicone oil was 8∶2, the water contact angle of modified solvent-free epoxy coating increased from 78? to 108?, flexibility from 1 mm to 0.5 mm, the impact resistance height from 40 cm to 50 cm, low-frequency impedance from 108 ??cm2 to 109 ??cm2, and the decomposition temperature from 387 ℃ to 428 ℃ for 50% heat loss. However, the hardness decreased from 2H to H When the coating had obvious delamination, but the overall performance of the coating was better. When the mass ratio of the epoxy resin to the excessively added aminosilicone oil was 7∶3, the overall performance of the coating was significantly decreased. Therefore, the addition of appropriate amount of amino silicone oil can not only improve the impact resistance, hydrophobicity and heat resistance of solvent-free epoxy coatings, but also can provide a denser coating surface, thereby enhancing its barrier effect on corrosive media. |
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