a GE Corporate Research and Development , K1-4B33, One Research Circle , Niskayuna , NY , 12309 , USA.
Biofouling. 2000;15(1-3):141-50. doi: 10.1080/08927010009386305.
In response to increased evidence of ecosystem damage by toxic antifouling paints, many researchers have developed nontoxic silicone fouling release coatings. The fouling release capability of these Systems may be improved by adding nonbonding silicone oils to the coating matrix. This idea has been tested by comparing the adhesion strength of hard- and soft-fouling organisms on a cured polydimethylsilicone (PDMS) network to that of the same network containing free polydi-methyldiphenylsilicone (PDMDPS) oil at five exposure sites in North America and Hawaii. Fouling coverage is discussed, together with the bioadhesion data, to emphasize that although these coatings foul the fouling is easily removed. The partitioning of the incorporated oil upon exposure of the coatings to a simulated marine environment containing sediment was determined. Less than 1.1 wt% of the incorporated oil was lost from the coating over one year, and the toxicity of these coatings was shown to be minimal to shrimp and fish. Brush abrasion wear was greater for coatings containing free oil, but the modulus of elasticity was not appreciably decreased by the addition of 10wt% free oil.
针对毒杀防污漆对生态系统造成损害的证据不断增加，许多研究人员开发了无毒硅基防污释放涂料。通过向涂层基质中添加非键合硅氧烷油，可以提高这些系统的防污释放能力。通过比较北美和夏威夷五个暴露点上硬污和软污生物在固化聚二甲基硅氧烷 (PDMS) 网络上的附着力强度与含有游离聚二甲基二苯基硅氧烷 (PDMDPS) 油的相同网络的附着力强度，检验了这一设想。本文讨论了污损覆盖物，并结合生物附着数据，强调了尽管这些涂层会受到污损，但污损很容易被去除。测定了涂层暴露于含有沉积物的模拟海洋环境中时，所包含的油的分配情况。在一年的时间里，涂层中损失的掺入油不到 1.1wt%，这些涂层对虾和鱼的毒性被证明很小。含有游离油的涂层的刷磨损较大，但添加 10wt%游离油不会明显降低弹性模量。
