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Abstract：
In this study, a series of amine-modified mesoporous silica (AMS)-based epoxy composites with superhydrophobic biomimetic structure surface of Xanthosoma sagittifolium leaves (XSLs) were prepared and applied as anti-corrosion and anti-biofilm coatings. Initially, the AMS was synthesized by the base-catalyzed sol-gel reaction of tetraethoxysilane (TEOS) and triethoxysilane (APTES) through a non-surfactant templating route. Subsequently, a series of AMS-based epoxy composites were prepared by performing the ring-opening polymerization of DGEBA with T-403 in the presence of AMS spheres, followed by characterization through FTIR, TEM, and CA. Furthermore, a nano-casting technique with polydimethylsiloxane (PDMS) as the soft template was utilized to transfer the surface pattern of natural XSLs to AMS-based epoxy composites, leading to the formation of AMS-based epoxy composites with biomimetic structure. From a hydrophilic CA of 69°, the surface of non-biomimetic epoxy significantly increased to 152° upon introducing XSL surface structure to the AMS-based epoxy composites. Based on the standard electrochemical anti-corrosion and anti-biofilm measurements, the superhydrophobic BEAMS3 composite was found to exhibit a remarkable anti-corrosion efficiency of ~99% and antimicrobial efficacy of 82% as compared to that of hydrophilic epoxy coatings.
摘要：
在这项研究中,制备了一系列具有超疏水仿生结构的胺改性介孔二氧化硅（AMS）基环氧复合材料，并将其用作防腐蚀和抗生物膜涂层。最初，AMS是通过四乙氧基硅烷（TEOS）和三乙氧基硅烷（APTES）的碱催化溶胶-凝胶反应通过非表面活性剂模板法合成的。随后，在AMS球体存在下，通过DGEBA与T-403进行开环聚合制备了一系列AMS基环氧复合材料，然后通过FTIR进行表征，TEM,和CA。此外，以聚二甲基硅氧烷（PDMS）为软模板的纳米铸造技术用于将天然XSL的表面图案转移到AMS基环氧复合材料中，导致形成具有仿生结构的AMS基环氧复合材料。从69°的亲水CA，在AMS基环氧树脂复合材料中引入XSL表面结构后，非仿生环氧树脂的表面显着增加到152°。基于标准的电化学防腐蚀和抗生物膜测量，与亲水性环氧涂料相比，超疏水BEAMS3复合材料表现出〜99％的显着防腐效率和82％的抗菌效力。
