1results about How to "Scratch resistance" patented technology

This invention provides a mechanically durable, antibacterial, and environmentally friendly marine antifouling coating, its preparation method, and its application. Belonging to the field of marine antifouling materials technology, it comprises the following components: a fluorinated quaternary ammonium salt polysiloxane prepolymer; nano-titanium dioxide; a curing agent; and pigments. The fluorinated quaternary ammonium salt polysiloxane prepolymer is prepared by dehydration condensation reaction of quaternary ammonium salt silane monomer A, phenyl silane monomer B, and fluorinated silane monomer C in an organic solvent under the action of an alkaline catalyst. The quaternary ammonium salt compounds used in this invention possess excellent environmental compatibility and outstanding rapid antibacterial and algaecidal effects, endowing the material surface with continuous microbial inhibition and killing properties. By disrupting the integrity of bacterial cell membranes and interfering with the activity of biological enzymes, it blocks the colonization and reproduction chain of marine attached organisms from the source, significantly improving the coating's resistance to typical fouling organisms such as barnacles and diatoms. Simultaneously, it can significantly improve the coating's modulus and hardness, making it more resistant to scratches, abrasions, and impacts.