
辣椒素改性涂层的制备及防污研究
李万珍
辣椒素改性涂层的制备及防污研究
Preparation and Antifouling Study of Capsaicin-Modified Coatings
高密度聚乙烯(HDPE)常用于构成海洋养殖网箱主框架结构的管道,易被海洋贝类生物附着。采用辣椒素作为刺激剂,使海洋生物无法附着在涂层表面上。通过打印机将墨水和辣椒素以设置的点阵图案打印在图纸表面上,确保点与点之间的距离小于藤壶臂展距离。利用具有疏水性特征的桐油,在图纸表面涂敷一层桐油,并逐层包裹三层图纸在HDPE表面上。在海洋环境中,随着逐渐脱落,达到了防污效果。显微镜观察发现,图案点与点之间的距离小于海洋环境中藤壶等贝类生物臂展之间的距离;红外和EDS测试证明辣椒素打印在图纸表面;接触角和防污测试说明辣椒素改性涂层对抑制海洋生物附着具有一定程度影响。
High-density polyethylene (HDPE) is commonly utilized in the pipes constituting the primary framework of marine aquaculture cages, which are prone to attachment by marine shellfish. Capsaicin was employed as a stimulant to deter marine organisms from adhering to the coated surface. The printer was used to apply ink and capsaicin onto the drawing surface in a predetermined dot matrix pattern, ensuring that the distance between dots is smaller than the arm span of barnacles. By applying hydrophobic tung oil as a protective layer on top of three layers of drawings wrapped successively onto the HDPE surface, gradual shedding occurs in the marine environment, thereby achieving an antifouling effect. The results showed that the spacing between points within the pattern was less than that between arms of shellfish such as barnacles in a marine setting. Successful printing of capsaicin on the drawing surface was confirmed through infrared and EDS tests. The contact angle and antifouling tests validated that capsaicin-modified coating exhibited certain efficacy in inhibiting attachment by marine organisms.
HDPE / Capsaicin / Tung oil / Antifouling
TQ325.12
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