吕朝龙,李志刚,魏玮,李小杰,刘晓亚.UV固化有机硅改性聚氨酯易清洁涂层的制备及性能研究[J].表面技术,2022,51(7):334-342, 419.
LYU Zhao-long,LI Zhi-gang,WEI Wei,LI Xiao-jie,LIU Xiao-ya.Preparation and Performance of UV-curable Silicone Modified Polyurethane Easy-to-clean Coating[J].Surface Technology,2022,51(7):334-342, 419 |
| UV固化有机硅改性聚氨酯易清洁涂层的制备及性能研究 |
| Preparation and Performance of UV-curable Silicone Modified Polyurethane Easy-to-clean Coating |
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| DOI：10.16490/j.cnki.issn.1001-3660.2022.07.033 |
| 中文关键词: 有机硅 易清洁涂层 光滑涂层 紫外光固化 聚氨酯丙烯酸酯 耐磨性能 |
| 英文关键词:silicone easy-cleaning coating smooth coating UV-curing polyurethane acrylate wear resistance |
| 基金项目: |
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| Author | Institution |
| LYU Zhao-long | School of Chemical and Material Engineering, Jiangnan University, Jiangsu Wuxi 214122, China |
| LI Zhi-gang | School of Chemical and Material Engineering, Jiangnan University, Jiangsu Wuxi 214122, China |
| WEI Wei | School of Chemical and Material Engineering, Jiangnan University, Jiangsu Wuxi 214122, China |
| LI Xiao-jie | School of Chemical and Material Engineering, Jiangnan University, Jiangsu Wuxi 214122, China |
| LIU Xiao-ya | School of Chemical and Material Engineering, Jiangnan University, Jiangsu Wuxi 214122, China |
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| 中文摘要: |
| 目的 研究聚二甲基硅氧烷(PDMS)相对分子质量、官能度及添加量对紫外光(UV)固化聚氨酯丙烯酸酯易清洁涂层防污性能的影响。方法 以聚乙二醇(PEG)、异佛尔酮二异氰酸酯(IPDI)、羟基封端的PDMS和季戊四醇三丙烯酸酯(PETA)为原料，采用一锅法制备了有机硅改性聚氨酯丙烯酸酯易清洁树脂，并UV固化得到易清洁涂层。结果 添加5 000相对分子质量PDMS(PDMS–5000)的涂层比添加1 000相对分子质量PDMS(PDMS–1000)的涂层具有更高的接触角、更低的滑动角、更好的油性记号笔笔迹收缩效果和耐磨性能，但涂层透过率明显降低;添加双羟基封端的PDMS(PDMS–B)的涂层比添加单羟基封端的PDMS(PDMS–A)的涂层具有更好的油性记号笔笔迹收缩效果和耐磨性能。随着涂层中PDMS的添加量从0.5%提高到2.0%，防污性能逐渐提高。同时根据XPS分析可知，当涂层中PDMS的添加量提高到2%时，涂层表面的Si含量接近饱和，防污性能达到最佳。易清洁涂层即使经过1 000次的磨损循环测试后，依然具有油性记号笔笔迹收缩效果。结论 PDMS–B改性的聚氨酯丙烯酸酯涂层比PDMS–A改性的聚氨酯丙烯酸酯涂层具有更优异的记号笔笔迹收缩性能和耐磨性能，而且PDMS–5000改性的聚氨酯丙烯酸酯涂层比PDMS–1000改性的聚氨酯丙烯酸酯涂层具有更好的易清洁性能。当PDMS的添加量从0.5%提高到2.0%时，涂层的疏水疏油性能逐渐提高。 |
| 英文摘要: |
| In order to study the influence of polydimethylsiloxane (PDMS) molecular weight, functionality and addition amount on the antifouling performance of UV-curable polyurethane acrylate easy-to-clean coatings. Using polyethylene glycol (PEG), isophorone diisocyanate (IPDI), hydroxyl-terminated PDMS and pentaerythritol triacrylate (PETA) as raw materials, a silicone-modified polyurethane acrylate easy-to-clean resin was prepared by a one-pot method and UV curing to get an easy-to-clean coating. The coating added with 5 000 molecular weight PDMS (PDMS-5000) has higher contact angle, lower sliding angle, better oily marker handwriting shrinkage and wear resistance than the coating with 1 000 molecular weight PDMS (PDMS-1000) performance, but the transmittance of the coating is significantly reduced; the coating with PDMS (PDMS-B) with double hydroxyl end cap has better shrinkage effect of oily marker pen than the coating with PDMS (PDMS-A) with single hydroxyl end cap and wear resistance. As the addition of PDMS in the coating increases from 0.5wt.% to 2.0wt.%, the anti-fouling performance gradually improves. At the same time, according to XPS analysis, when the addition of PDMS in the coating increases to 2wt.% , the Si content is close to saturation, and the anti-fouling performance reaches the best. The easy-to-clean coating still has the effect of shrinking the handwriting of the oily marker pen even after 1 000 abrasion cycle tests. The AFM characterization test shows that the prepared smooth and easy-to-clean coating surface has very low roughness. The PDMS-B modified urethane acrylate coating has better marker handwriting shrinkage and abrasion resistance than the PDMS-A modified urethane acrylate coating, and the PDMS-5000 modified urethane acrylate coating is better than the PDMS-5000 modified urethane acrylate coating. PDMS-1000 modified polyurethane acrylate coating has better easy-to-clean performance. When the amount of PDMS added was increased from 0.5wt.% to 2.0wt.%, the hydrophobic and oleophobic properties of the coating gradually improved. |
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