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以1,4-丁二醇(BDO)和环己醇为致孔剂,甲基丙烯酸丁酯(BMA)为反应性单体、乙二醇二甲基丙烯酸酯(EDMA)为交联单体,偶氮二异丁腈(AIBN)为引发剂进行原位自由基聚合,利用相分离法制备了具有超疏水性能的多孔聚合物涂层。考察了EDMA和BDO用量对涂层性能的影响。通过接触角(CA)、扫描电镜(SEM)和原子力显微镜(AFM)对涂层的疏水性和结构进行了表征。结果表明,涂层的疏水性分别随着EDMA和BDO用量的增加先升高后下降,当ω(EDMA)=25%及ω(BDO)=25%时,涂层表面具有微/纳米复合结构,其静态水接触角(CA)和滚动角(SA)分别为153.8°和4°,不同pH条件下涂层均显示良好的耐酸碱盐效果。
Using 1,4-butanediol (BDO) and cyclohexanol as porogen, butyl methacrylate (BMA) as reactive monomer and ethylene glycol dimethacrylate (EDMA) as crosslinking monomer , Azobisisobutyronitrile (AIBN) as initiator for free radical polymerization, the use of phase separation prepared porous polymer coating with superhydrophobic properties. The effects of the amount of EDMA and BDO on the coating performance were investigated. The hydrophobicity and structure of the coatings were characterized by contact angle (CA), scanning electron microscopy (SEM) and atomic force microscopy (AFM). The results show that the hydrophobicity of the coating first increases and then decreases with the increase of the amount of EDMA and BDO, respectively. When the EDMA is 25% and the content of BDO is 25%, the surface of the coating has micro / nano composite structure The static water contact angle (CA) and rolling angle (SA) were 153.8 ° and 4 °, respectively. The coatings showed good acid and alkali resistance under different pH conditions.