Antibacterial biaxially oriented polyester film and preparation method thereof

Abstract

The invention relates to the technical field of high polymer materials, and discloses an antibacterial biaxially oriented polyester film. The antibacterial biaxially oriented polyester film comprisesflame-retardant layers, an upper surface layer, a core layer and a lower surface layer, the core layer is a colored layer, the upper surface layer and the lower surface layer are arranged on two sidesof the core layer, the two flame-retardant layers are respectively arranged on one sides, away from the core layer, of the upper surface layer and the lower surface layer, the upper surface layer andthe lower surface layer are transparent layers, the core layer is prepared from, by mass, 4-20% of the color master batches and 80-96% of optical PET slices, the upper surface layer and the lower surface layer are each prepared from, by mass, 20-55% of open master batch and 45-80% of the optical PET slices, and an antibacterial agent is added into the flame-retardant layers, the upper surface layer, the core layer and the lower surface layer. According to the antibacterial biaxially oriented polyester film and the preparation method thereof, the flame retardant property of the biaxially oriented polyester film is good, the thickness and surface tension of the polyester film are increased, and the polyester film with any color can be prepared.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to an antibacterial biaxially stretched polyester film and a preparation method thereof. Background technique [0002] Polyester film (PET) is a film material made of polyethylene terephthalate as a raw material, which is made into a thick sheet by extrusion and then biaxially stretched. The polyester film has many excellent characteristics: mechanical strength High, excellent optical performance, good electrical insulation performance, good barrier performance, wide operating temperature range (-70 ° C ~ 200 ° C), chemical corrosion resistance and good dimensional stability, etc., so it is widely used in packaging, electronic power and photography, Magnetic products and other fields. In recent years, due to the rapid development of liquid crystal display, polyester film also has important applications in the optical field, and biaxially stretched polyester film has excel...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides an antibacterial biaxially stretched polyester film and a preparation method thereof, which has good flame retardancy and is easy to meet the needs of users. The thickness of the biaxially stretched polyester film is relatively thick, Not easy to tear and other advantages, it solves the problems of poor flame retardancy and small surface tension of biaxially stretched polyester film

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