Waterborne fluorinated ethylene and vinyl ether copolymer (FEVE) coatings are progressively replacing solvent-based FEVE coatings because of their environmental friendliness. However, their practical application is limited due to the poor adhesion, waterproofing, and corrosion resistance, as well as the environmentally unfriendly nature of the small emulsifiers used. Here, a novel waterborne FEVE coating with excellent adhesion, anti-corrosion, and fluorescent properties was developed using amphiphilic fluorosilane oligomer (PFSQ) as microreactors and chlorotrifluoroethylene (CTFE), isobutyl vinyl ether (IBVE), and glycidyl methacrylate (GMA) as copolymer monomers. The introduction of fluorosilane significantly enhances the hydrophobicity of the coating (the water contact angle increased from 69.3 ± 2.4° to 131.4 ± 1.1°). The epoxy groups in the GMA units of terpolymer facilitate bonding of the coating to the substrate, enhancing the adhesion of the coating to the tinplate substrate (the lap shear strength increased from 0.47 ± 0.04 to 0.92 ± 0.01 MPa). Moreover, the interaction between the epoxy groups of GMA and the silicon hydroxyl groups of PFSQ in the synergistic network leads to the intrinsic luminescence of the coating. In addition, the coating exhibits superior corrosion resistance. The molecular structure design provides a new idea for the development of multifunctional waterborne FEVE coating.

中文翻译：

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氟硅烷乳化三氟氯乙烯三元共聚设计用于马口铁基材的强附着力、防腐、荧光水性氟碳涂料


水性氟化乙烯和乙烯基醚共聚物 (FEVE) 涂料因其环境友好性而逐渐取代溶剂型 FEVE 涂料。然而，由于其附着力、防水性和耐腐蚀性差，以及所用小型乳化剂对环境不友好，其实际应用受到限制。在此，利用两亲性氟硅烷低聚物（PFSQ）作为微反应器，三氟氯乙烯（CTFE）、异丁基乙烯基醚（IBVE）和甲基丙烯酸缩水甘油酯（GMA）作为共聚物，开发了一种具有优异附着力、防腐性和荧光性能的新型水性FEVE涂料。单体。氟硅烷的引入显着增强了涂层的疏水性（水接触角从69.3±2.4°增加到131.4±1.1°）。三元共聚物GMA单元中的环氧基团有利于涂层与基材的粘合，增强了涂层与马口铁基材的附着力（搭接剪切强度从0.47±0.04增加到0.92±0.01MPa）。此外，协同网络中GMA的环氧基团和PFSQ的硅羟基之间的相互作用导致涂层具有本征发光。此外，涂层还具有优异的耐腐蚀性能。该分子结构设计为多功能水性FEVE涂料的开发提供了新思路。