Anti-fogging film

Abstract

The invention discloses an anti-fogging film. The anti-fogging film is characterized by including a modified PET substrate layer and an anti-fogging coating with which the substrate layer is coated. The anti-fogging coating includes, by weight, 40-50 parts of acrylic acid, 15-25 parts of carbamate, 2-5 parts of lithium bromide, 2-3 parts of an antifreeze agent and 0.4-1 part of a dispersing agent;the modified PET substrate layer includes, by weight, 60-120 parts of polyester, 8-15 parts of glycerol formate, 5-10 parts of phosphite ester and 1-1.5 parts of silicon dioxide. The disclosed anti-fogging film has good and lasting anti-fogging performance, the preparation process is simple, the production cost is low, and the anti-fogging film is suitable for large-scale production.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to an anti-fog film. Background technique [0002] In daily life, various substrates such as glasses, car window glass, bathroom mirrors, building interior and exterior window glass, agricultural greenhouses, etc., often appear fogging in places with high temperature difference or high humidity difference, which affects the use in life and production, and even Cause a lot of human and economic loss. For example, under the high humidity in the agricultural greenhouse, when the outside temperature is lower than the dew point of water vapor, frost will form on the greenhouse film, and the tiny dewdrops will greatly reduce the light level in the greenhouse, thus affecting the normal growth of plants. [0003] It can be seen that the phenomenon of fogging on the surface of the substrate will have a huge impact on daily life and production, and the research on the anti-fog film on the su...

AI Technical Summary

Problems solved by technology

[0002] In daily life, various substrates such as glasses, car window glass, bathroom mirrors, building interior and exterior window glass, agricultural greenhouses, etc., often appear fogging in places with high temperature difference or high humidity difference, which affects the use in life and production, and even Cause massive human and economic losses

For example, under the high humidity in the agricultural greenhouse, when the outside temperature is lower than the dew point of water vapor, frost will form on the greenhouse film, and the tiny dewdrops will greatly reduce the light level in the greenhouse, thus affecting the normal growth of plants