Tung oil coated degradable mulching film

Abstract

The invention proposes a degradable mulch film coated with tung oil, which comprises a non-woven fabric and a tung oil layer, and the tung oil layer is coated on the non-woven fabric layer. The degradable plastic film coated with tung oil is degradable. When the plant grows and needs to be removed, it has been degraded by itself, eliminating the cost of manual recycling, and can be used for the cultivation of crops such as corn, strawberry, cotton, peanut and tobacco. At the same time, in view of the large pore size of the single-layer non-woven fabric structure, which causes serious air permeability and reduced heat preservation and water retention effects, a layer of tung oil is coated on the surface of the non-woven fabric to encrypt the overall structure, thereby improving heat preservation and water retention. performance.

Description

technical field [0001] The invention relates to the field of agricultural production, in particular to a degradable plastic film coated with tung oil. Background technique [0002] In the process of planting many crops, especially tobacco plants, in order to obtain a better growth environment, mulch is used, while the traditional mulch is a plastic (polyethylene or polyvinyl chloride) film. Although it can play the role of heat preservation, water retention and fertilizer preservation, but at the same time, it has many negative effects. [0003] For example, after the mulch film is placed, it needs to be recycled, but the recycling is done manually, which makes it difficult to recycle and causes high recycling costs; at the same time, the mulch film that has not been recycled is not easy to degrade. According to current research, it takes about 300 years for the polyethylene mulch film to completely decompose. time, which caused serious white pollution [0004] In addition...

AI Technical Summary

Problems solved by technology

[0003] For example, after the mulch film is placed, it needs to be recycled, but the recycling is done manually, which makes it difficult to recycle and causes high recycling costs; at the same time, the mulch film that has not been recycled is not easy to degrade. According to current research, it takes about 300 years for the polyethylene mulch film to completely decompose. time, which caused serious white pollution

[0004] In addition, in addition to high labor costs and environmental pollution, there are also many defects in use.

[0005] For example, because the plastic is not breathable, it is easy to cause water vapor to accumulate to form mist, which reduces the light transmittance of the mulch, which in turn affects the growth of plants under the mulch; and because the traditional polyethylene (polyvinyl chloride) mulch does not have gaps, The product is airtight, which will easily lead to the lack of oxygen under the film. The root system of the plant will grow sideways or even upward due to lack of oxygen, and the root system is easy to age, which will affect the nutrient absorption of the root system. The root system is the main source of nutrients for the plant. This effect will lead to defects in plant growth

[0006] In addition, due to the light-absorbing characteristics of the plastic film itself, in the case of planting under the film, when the plant grows, it is easy to cause burns on the part of the plant that touches the film due to strong light absorption.

[0007] In addition, since plastic mulch is prone to static electricity, it is also easy to be adsorbed on the person who lays the mulch or other objects that come into contact with it during use, causing certain inconvenience

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