FC-4430/SiO_2/PU复合疏水涂层制备及性能研究
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摘要
具有疏水性表面的材料在自清洁、流体输送、减阻等领域具有潜在的应用价值。本文采用纳米Si O2粒子为添加剂,聚氨酯(PU)为成膜物,含氟表面活性剂(FC-4430)为低表面能修饰物,构筑出了微-纳米复合结构,采用涂刷工艺制备出FC-4430/Si O2/PU复合涂层。研究了Si O2和PU的质量比、FC-4430的用量对涂层疏水性能的影响。结果表明:在SiO2和PU的质量比为1:4,FC-4430的含量为1.5 mL时,复合涂层的疏水性能最好,水滴的接触角为127.6°。
Materials with hydrophobic surfaces have potential applications in fields such as self-cleaning, fluid transport, and drag reduction. In this paper, the micro-nano composite structure was constructed by using nano-SiO_2 particles as additives,polyurethane(PU) as film-forming material, fluorosurfactant(FC-4430) as low surface energy modifier, and then FC-4430/SiO_2/PU composite coating was prepared by brushing process. The effect of the mass ratio of SiO_2 to PU,the amount of FC-4430 on the hydrophobic property of the coating was investigated. The results showed that when the mass ratio of SiO_2 to PU was 1:4 and the content of FC-4430 was 1.5 mL,the hydrophobicity of prepared composite coating was the best,and the contact angle was 127.6°.
Materials with hydrophobic surfaces have potential applications in fields such as self-cleaning, fluid transport, and drag reduction. In this paper, the micro-nano composite structure was constructed by using nano-SiO_2 particles as additives,polyurethane(PU) as film-forming material, fluorosurfactant(FC-4430) as low surface energy modifier, and then FC-4430/SiO_2/PU composite coating was prepared by brushing process. The effect of the mass ratio of SiO_2 to PU,the amount of FC-4430 on the hydrophobic property of the coating was investigated. The results showed that when the mass ratio of SiO_2 to PU was 1:4 and the content of FC-4430 was 1.5 mL,the hydrophobicity of prepared composite coating was the best,and the contact angle was 127.6°.
引文
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[6]张燕,杨凯,王贤明,等.疏水涂层的研究进展[J].中国涂料,2007,22(5):43-45.
[7]郑燕升,何易,青勇权,等.二氧化硅/聚四氟乙烯杂化超疏水涂层的制备[J].化工进展,2012,31(7):1562-1567.
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[9]段辉,熊征蓉,汪厚植,等.超疏水性涂层的研究进展[J].化学工业与工程,2006,23(1):81-88.
[10]赵大方,陈一民,洪晓斌,等.疏Si O2气凝胶的低成本制备[J].硅酸盐学报,2004,32(5):548-552.
[11]Jiang Xiong Qiao Shengru Zhang Chengyu Hu Haibao Liu Xiaoju.Hydrophobic Surface and Its Application to Drag Reduction[J].Progress in Chemistry,2008,20(4):450-456.
[2]赵宁,卢晓英,张晓艳.超疏水表面的研究进展[[J].化学进展,2007,19(7):860-871.
[3]樊丹,李战雄,袁京,等.含氟聚丙烯酸酯乳液合成及应用[J].印染助剂,2012,29(3):18-21.
[4]Basu B B J,Paranthaman A K.A simple method for the preparation of superhydrophobic PVDF-HMFS hybrid composite coatings[J].Applied Surface Science,2009,255(8):4479-4483.
[5]喻华兵,汪存东,李瑞丰.仿生超疏水二氧化硅/聚氨酯复合涂层的制备及性能[J].高分子材料科学与工程.2014,30(1):136-139.
[6]张燕,杨凯,王贤明,等.疏水涂层的研究进展[J].中国涂料,2007,22(5):43-45.
[7]郑燕升,何易,青勇权,等.二氧化硅/聚四氟乙烯杂化超疏水涂层的制备[J].化工进展,2012,31(7):1562-1567.
[8]陈理,王艳芬,聂荣春,等.仿生超疏水透明涂层的研究进展[J].广东化工,2014,42(17):24-26.
[9]段辉,熊征蓉,汪厚植,等.超疏水性涂层的研究进展[J].化学工业与工程,2006,23(1):81-88.
[10]赵大方,陈一民,洪晓斌,等.疏Si O2气凝胶的低成本制备[J].硅酸盐学报,2004,32(5):548-552.
[11]Jiang Xiong Qiao Shengru Zhang Chengyu Hu Haibao Liu Xiaoju.Hydrophobic Surface and Its Application to Drag Reduction[J].Progress in Chemistry,2008,20(4):450-456.