光固化含氟聚氨酯杂化涂层的制备及性能研究
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摘要
采用溶液聚合制备了系列不同含氟单体结构和不同氟含量的含氟聚氨酯丙烯酸酯,并通过红外光谱(FTIR)和核磁共振氢谱(1HNMR)对其进行表征。运用X光电子能谱(XPS)研究了含氟单体的表面富集行为,并对含氟单体结构和含量对固化漆膜水接触角的影响进行了研究。优选了G06树脂进一步和SiO_2和ZrO_2无机溶胶复配制备了光固化含氟杂化涂料,对固化漆膜的摩擦系数、耐磨性进行了研究。结果表明:含氟单体的加入显著降低了固化漆膜的摩擦系数,与高硬度的无机溶胶复配显著提高了有机玻璃的耐磨性,涂覆了不含氟的有机/无机杂化涂料的有机玻璃磨耗量从2.9 mg/50转降低到0.7 mg/50转,涂覆了光固化含氟杂化涂料的磨耗值进一步降低到0.5 mg/50转。
In this paper,a series of fluorinated urethane acrylates with different structures and contents of fluorinated monomers were prepared by solution polymerization and characterized by FTIR and 1 HNMR. X-ray photoelectron spectroscopy( XPS) was used to study the surface enrichment behavior of fluorinated group. The influence of fluorinated monomer structure and content on the water contact angle of cured films was also studied. The G06 resin was blended with SiO_2 and ZrO_2 inorganic sol to prepare photo-curing fluorinated hybrid coatings,and the friction coefficient and wear resistance of the cured coatings were studied. The results show that the addition of fluorinated monomer significantly reduces the coefficient of friction of the cured film,and thus significantly improves the wear resistance of polymethyl methacrylate by incorporating with the inorganic sol. The wear loss of polymethyl methacrylate reduced from 2. 9 mg per to 0. 7 mg per 50 rounds coated with fluorine-free organic-inorganic hybrid coating. It further reduced to 0. 5 mg per50 rounds coated with fluorinated hybrid coating.
In this paper,a series of fluorinated urethane acrylates with different structures and contents of fluorinated monomers were prepared by solution polymerization and characterized by FTIR and 1 HNMR. X-ray photoelectron spectroscopy( XPS) was used to study the surface enrichment behavior of fluorinated group. The influence of fluorinated monomer structure and content on the water contact angle of cured films was also studied. The G06 resin was blended with SiO_2 and ZrO_2 inorganic sol to prepare photo-curing fluorinated hybrid coatings,and the friction coefficient and wear resistance of the cured coatings were studied. The results show that the addition of fluorinated monomer significantly reduces the coefficient of friction of the cured film,and thus significantly improves the wear resistance of polymethyl methacrylate by incorporating with the inorganic sol. The wear loss of polymethyl methacrylate reduced from 2. 9 mg per to 0. 7 mg per 50 rounds coated with fluorine-free organic-inorganic hybrid coating. It further reduced to 0. 5 mg per50 rounds coated with fluorinated hybrid coating.
引文
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[2]Zvonkina I J,Soucek M D.Inorganic-organic hybrid coatings:common and new approaches[J].Current Opinion in Chemical Engineering,2016,11:123-127.
[3]Bergamonti L,Bondioli F,Alfieri I,et al.Weathering resistance of PMMA/Si O2/Zr O2hybrid coatings for sandstone conservation[J].Polymer Degradation and Stability,2018,147:274-283.
[4]Zhi Y,Sun X,Li N,et al.UV curable organic-inorganic hybrid coatings on microporous polyethylene separator for enhancing mechanical and electrochemical performance[J].Journal of Alloys and Compounds,2018,743:756-762.
[5]张志强,马琦,张宝柱,等.有机-无机杂化材料的制备技术和应用前景[J].应用化工,2005,34(7):389-393.
[6]Bahria H,Erbil Y.UV technology for use in textile dyeing and printing:Photocured applications[J].Dyes and Pigments,2016,134:442-447.
[7]Lavinia M,Gheorghe I.Influence of pigment properties on UV-curing efficiency[J].Journal of Applied Polymer Science,2010,104(1):247-252.
[8]Yang K Y,Kim J,Cho H K,et al.Environment-stable solar window modules encapsulated with UV-curable transparent resin[J].Solar Energy,2017,158:528-532.
[9]陈明,洪啸吟.紫外光固化涂料的进展[J].涂料工业,1999,29(12):30-36.
[10]黄萍,罗晃.含氟减摩耐磨材料研究[J].塑料,2001,30(3):29-32.
[11]Li Q,Yan Y,Yu M,et al.Synthesis of polymeric fluorinated sol-gel precursor for fabrication of superhydrophobic coating[J].Applied Surface Science,2016,367:101-108.
[12]张燕妮.紫外光固化含氟涂料的研制[D].济南:济南大学,2016.
[13]营飞,王木立,顾斌,等.功能性含氟聚合物在涂料中的应用[J].涂料与应用,2016(2):22-28.
[14]Wang X,Hu J,Li Y,et al.The surface properties and corrosion resistance of fluorinated polyurethane coatings[J].Journal of Fluorine Chemistry,2015,176:14-19.
[15]董骏,梁红波,吕程.纯丙类聚氨酯/Si O2-Zr O2光固化纳米复合透明耐磨涂料涂层的制备及性能[J].材料保护,2016,49(8):15-19.