A quaternary ammonium salt type antibacterial resin was synthesized by the polymerization reaction. The antibacterial properties was evaluated by means of the bacteriostatic ring test

antibacterial rate test and the influence of different environment on the paint film antibacterial effect test

and the mechanical properties of antibacterial resin paint film were investigated. Results showed that the coating had good mechanical properties

when the content of quaternary ammonium salt was 6%

the antibacterial rate of paint film to the staphylococcus aureus and escherichia coli could reach more than 99%

and the coating had good resistance to bad environment

after wiping 1000 times

its antibacterial rate still more than 95%

and had good antibacterial effect performance.