Antibacterial protective film and preparation method thereof

The invention belongs to the technical field of material coatings, and particularly relates to an antibacterial protective film and a preparation method thereof. The antibacterial protective film is prepared from the following components in parts by weight: 20-30 parts of a polythiophene solution with the mass fraction of 10%-20%, 5-10 parts of nano-silver, 25-40 parts of isopropanol and 50-70 parts of water. Polythiophene has good conductivity, so that charges on the surfaces of bacteria can be discharged everywhere, the bacteria cannot maintain a stable state, and the antibacterial effect is achieved. In addition, the metal silver nano particles are combined for synergistic bacterium inhibition, so that the antibacterial effect is improved. The prepared protective film is simple to use and more convenient to use. 本发明属于材料涂层技术领域，具体涉及一种抗菌保护膜及其制备方法，按重量份计，包括以下组分：质量分数为10%~20%的聚噻吩溶液20~30份，纳米银5~10份，异丙醇25~40份，水50~70份。本发明中聚噻吩具有良好的导电性有利于将细菌表面的电荷到处，使细菌无法维持稳定状态而达到抑菌的效果。另外结合金属银纳米协同抗菌，提高了抗菌效果。而且制备得到的保护膜使用简单，更加方便使用。