High-strength thin film and preparation method thereof

Abstract

The invention discloses a high-strength thin film. The high-strength thin film is prepared from the following raw materials in parts by weight: 80 to 100 parts of polyvinyl chloride resin, 20 to 30 parts of nitrile rubber, 15 to 20 parts of o-cresol formaldehyde epoxy resin, 4 to 8 parts of glass fibres, 2 to 6 parts of cotton pulp, 3 to 7 parts of acorus gramineus, 5 to 10 parts of polyethylene terephthalate, 2 to 5 parts of methylenediphenyl diisocyanate, 5 to 10 parts of polyoxyethylene nonyl phenyl ether, 4 to 8 parts of sodium carboxymethylcellulose, 2 to 5 parts of aminophenyl sulfone, 5to 10 parts of a plasticizer, 2 to 4 parts of a leveling agent, 1 to 3 parts of a curing agent and 0.5 to 1 part of an antioxidant. The invention also discloses a preparation method of the high-strength thin film. The thin film prepared by the preparation method has high strength, high aging resistance and high light transmittance under the cooperative action of various raw materials.

Description

technical field [0001] The invention relates to the technical field of thin films, in particular to a high-strength thin film and a preparation method thereof. Background technique [0002] Plastic greenhouse, commonly known as cold shed, is a simple and practical protective cultivation facility. Because of its easy construction, convenient use, and low investment, it is widely used by countries all over the world with the development of the plastics industry. Use bamboo, wood, steel and other materials, and cover with plastic film, to build an arched shed for the cultivation of vegetables, which can advance or delay the supply, increase the output per unit area, and help prevent natural disasters, especially in the early spring and late autumn off-season in the northern region. Serve fresh vegetables. [0003] The film is a thin and soft transparent sheet made of plastic, adhesive, rubber or other materials. The existing plastic film for greenhouse planting has the problem...

AI Technical Summary

Problems solved by technology

[0003] The film is a thin and soft transparent sheet made of plastic, adhesive, rubber or other materials. The existing plastic film for greenhouse planting has the problem of low strength. Once it encounters rainy, snowy and windy weather, the film is easy to break , leading to the direct contact of vegetables with the external environment, resulting in death; and the light transmittance of the existing plastic greenhouse films is generally not high. In the case of insufficient light in winter, some light-loving vegetables grow slowly, which is not conducive to improving economic benefits.

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