以硅烷偶联剂KH-570改性纳米TiO2,将其添加到丙烯酸树脂中,制得改性纳米TiO2复合丙烯酸树脂。通过扫描电镜表征和接触角分析,发现KH-570改性纳米TiO2复合丙烯酸树脂成膜后具有明显的微米-纳米表面结构,成膜物的水接触角由75°提高到115°;海上挂板实验表明:KH-570改性纳米TiO2复合丙烯酸防污涂料具有较强的防污性能,能够有效抑制海洋生物附着。
TiO2 nano-particles were modified with silane coupling agent (KH-570), and then mixed with acrylic resin to form a nano-TiO2 composite acrylic resin. The scanning electron microscope (SEM) and contact angle analyzer indicated that the nano-TiO2 composite acrylic resin could form a film showing obviously micro- and/or nano-level surface structure and water contact angle increasing from 75° to 115° . The result derived from offshore field test indicated that the acrylic composite antifouling coatings based on nano- TiO2 modified with KH-570 exhibited high antifouling property and effectively inhibited the adhesion of marine organisms.