Natural Antifouling Agent In The Application Of Low Surface Energy Of Marine Antifouling Coatings

The sea, from bacteria to giant kelp, from fungi to large shellfish, all plants and animals that live in the sea will be for the facilities in the sea for temporary or permanent adhesive. The adhesion of the ocean ship, submarine equipment and Marine aquaculture and other different dip sea facilities can have different degrees of damage, caused incalculable economic losses. Traditional various Marine biological adhesion prevention method has its own shortcomings, so far, the most rapid development, the spray antifouling coating method is simple and effective.This study organic fluorine monomer and acrylate monomers by free radical polymerization of synthetic resin, modified by vinyl pyridine, with low surface energy and antibacterial properties of modified resin, and infrared detection; pyridine, make its low surface energy and antibacterial properties, and infrared detection; Through the resin viscosity and conversion rate and coating of the contact Angle test, further analysis to determine the various parameters of resin synthesis process, technological process and formula of the resin synthesis:14copy of methyl methacrylate (mma), butyl acrylate,15copy, GO48copy, vinyl pyridine dosage of3copy, synthesis temperature choice85℃, organic fluoride and acrylic monomers part first reaction, the synthesis of vinyl pyridine delay after add process.Synthesis of the modified resin as the main film-forming material, fillers iron oxide red. kaolin, etc, on the basis of the same join the inhibition of various common Marine fouling organisms attached natural antifouling agent phloroglucinol, hydroxy ethyl sulfonic acid and nicotinamide produced with natural low surface energy nontoxic antifouling agent Marine antifouling coatings, through conventional performance test of paint film, contact Angle experiments, bacteriostatic ring test to determine the best coating formulation:resin30copy, various fillers, a total of19copy,1.95copy phloroglucinol, hydroxy ethyl sulfonic acid1.2copy and0.75copy nicotinamide; Discussed after joining natural antifouling agent on the basic performance and the effect of coating with bacteriostatic ring test has proved its antibacterial properties, and through the sea exposure test and surface scanning observation and verify the rationality of the bacteriostatic experiment coating of excellent antifouling, finally analyzes the antifouling agent containing coating the surface microstructure of antibacterial antifouling mechanism and various antifouling agent.The results show that the natural antifouling agent after joining, the basic properties of the low surface energy coating to maintain good:its impact strength is greater than50kg/cmz. adhesion for level1, paint film and water contact Angle is128.5°, but significantly enhance its antibacterial properties, the minimum Bacteriostatic ring on Escherichia coli bacillus reaches19.6mm, practical the sea exposure test excellent effect no bacteria and Marine fouling organisms attached.