新型有机硼防污剂在自抛光防污涂料中的匹配稳定性和防污性能研究

Study on the Matching Stability and Antifouling Performance of a NovelOrganoboron Antifouling Agent in Self-polishing Antifouling Coatings

本工作探究了一种新型有机硼防污剂——4-异丙基吡啶甲基二苯基硼烷(4-IPDMB)在防污涂料中的稳定性和防污性能。以稳定水解的丙烯酸硅树脂为自抛光基体树脂,以4-IPDMB为主防污剂,以吡啶硫酮锌、溴代吡咯腈或异噻唑啉酮等作为辅助防污剂,制备了多种防污涂料,并进行性能表征。首先采用一步自由基聚合法成功制备了一种具有稳定抛光速率的丙烯酸硅树脂,抛光速率测试结果表明该丙烯酸硅树脂的抛光速率为4μm/month。按配方将如上组分配制成涂料后,通过附着力试验、储存稳定性试验和浅海静态挂板试验对4-IPDMB在防污涂料中的配方匹配稳定性和防污能力进行了表征。结果表明,含有4-IPDMB的防污涂料具有良好的防污性能,当与其他辅助防污剂混合后,附着力、防污性能和储存稳定性均产生一定程度的变化,需进一步探究4-IPDMB与辅助防污剂之间的潜在化学反应,指导配方优化。

In this work,the stability and antifouling performance of a new organobylboron antifouling agent,4-isopropylpyridinemethyldiphenylborane(4-IPDMB),in antifouling coatings were investigated.A variety of antifouling coatings were prepared with the self-polishing matrix resin(stable hydrolyzed acrylic silicone resin),main antifouling agent(4-IPDMB),and auxiliary antifouling agents(zinc pyrithione,tralopyrilor or isothiazolinone),and their properties were characterized.Firstly,an acrylic silicone resin with a stable polishing rate was successfully prepared by one-step radical polymerization,and the polishing rate test results showed that the polishing rate of the acrylic silicone resin was 4μm/month.After the above components were configured into coatings according to the formula,the formulation matching stability and antifouling ability of 4-IPDMB in antifouling coatings were characterized by adhesion test,storage stability test and shallow sea static hanging plate test.The results show that the antifouling coating containing 4-IPDMB has good antifouling performance,and when mixed with other auxiliary antifouling agents,the adhesion,antifouling performance and storage stability all change to a certain extent,and the potential chemical reaction between 4-IPDMB and auxiliary antifouling agent should be further explored to guide the formulation optimization.