Degradable film coating material

Abstract

The invention provides a degradable film coating material, and belongs to the technical field of thin films. The degradable film coating material includes 20-40 parts by weight of nano silica, 50-70 parts by weight of nano titanium dioxide, 4-10 parts by weight of acrylic resin, and 4-10 parts by weight of polyimide resin, wherein the particle size of the acrylic resin is 10-15 nm. The coating material is applied to degradable films, can effectively prolong the degradation time of the degradable films and has low cost.

Description

technical field [0001] The invention belongs to the technical field of thin films, and in particular relates to a degradable film coating material. Background technique [0002] Thin films have become indispensable synthetic materials in people's production and life. With the continuous growth of film production, it brings convenience to people but also brings serious environmental pollution. For example, agricultural film, as a means of agricultural production, is widely used in modern agriculture, but if the waste agricultural film is not cleaned If it is not clean, it will bring great disadvantages to the environment and agricultural production. Long-term use of the agricultural film left on the land will cause crop yield reduction, land desertification, river blockage, and cause livestock to eat and die, which seriously damages the environment. If the residual plastic film per mu exceeds 22kg, the yield of crops will be reduced by 25%. If the low residual plastic film ...

AI Technical Summary

Problems solved by technology

With the continuous growth of film production, it brings convenience to people but also brings serious environmental pollution. For example, agricultural film, as a means of agricultural production, is widely used in modern agriculture, but if the waste agricultural film is not cleaned If it is clean, it will bring great disadvantages to the environment and agricultural production.

Long-term use of the agricultural film left on the land will cause crop yield reduction, land desertification, river blockage, and cause livestock to eat and die, which seriously damages the environment

If the residual film per mu exceeds 22kg, the yield of crops will be reduced by 25%. If the residual film per mu exceeds 50kg, the land will not be cultivated and will lead to desertification

[0003] At present, degradable films are used in many places, but the degradable films will degrade within a certain period of time. Some crops have a long growth cycle or some places require a long period of film coverage. The general degradable film does not meet the requirements.

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