以苯乙烯-乙烯-丁烯-苯乙烯(SEBS)和马来酸酐接枝SEBS(SEBS-g-MAH)为基料,采用喷涂法在溶剂和热处理温度不同条件下制备SEBS-g-MAH/SEBS涂层,并研究其海洋防污性能。结果表明,涂层呈相分离结构且该结构随溶剂对不同链段溶解性差异的增大和溶剂蒸发速率的降低而愈加显著,涂层物理性质和防污性能随之变化。其中以环己烷为溶剂,热处理温度30℃时制备的涂层呈现出更细密均匀的褶皱结构,其抗蛋白吸附率达91.7%,附着的硅藻平均密度仅为64cells/mm2,且在实海防污测试中表现出长效稳定的防污效果。
SEBS-g-MAH/SEBS coating was prepared by spraying method using styrene-ethylene-butylene-styrene (SEBS) and maleic anhydride-grafted SEBS (SEBS-g-MAH) as matrix materials under different solvent and heat treatment conditions.The marine antifouling properties of the coating were investigated.The results indicated that the coatings exhibited phase-separated structures,which became more pronounced with increasing differences in solvent solubility toward different segments and with decreasing solvent evaporation rates,thereby leading to corresponding changes in the physical and antifouling properties of the coating.Specifically,the coating prepared using cyclohexane as the solvent and heat-treated at 30℃ exhibited finer and more uniform wrinkled structures,achieving a protein adsorption resistance of 91.7% and an average diatom adhesion of only 64cells/mm2.Moreover,it demonstrated long-term stable antifouling performance in real marine field tests.
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