Practical environmentally fully degradable material and preparation method thereof

Abstract

The invention relates to a practical environmental fully-degradable material which comprises first-layer films and second-layer films. The first-layer films comprise polyethylene, polylactic acid, lanthanum oxide, europium chloride, yttrium nitrate, zinc laurate, 2, 6-butylated hydroxytoluene, diatomaceous earth, humic acid and polyacrylate; the second-layer films comprise polybutylene succinate, polylactic acid, polyethylene, tourmaline powder, boric acid, yttrium nitrate, 2, 4, 6-tri-tert-butylphenol and nanometer titanium dioxide. The practical environmental fully-degradable material has the advantages that the practical environmental fully-degradable material is excellent in waterproof performance, flame retardance and mechanical properties such as tensile strength and breakage elongation; excellent effects of regulating temperatures, preserving soil moisture, increasing the emergence rates of crops and the like can be realized by the practical environmental fully-degradable material when the practical environmental fully-degradable material is used as a mulching film; the practical environmental fully-degradable material is easy to degrade, particularly, various portions can simultaneously reach degradation endpoints when the practical environmental fully-degradable material is used as the mulching film, and accordingly the shortcoming of different degradation speeds of various portions of the traditional commercially available mulching films in application procedures can be overcome.

Description

technical field [0001] The invention relates to the technical field of degradable materials, in particular to a practical environment fully degradable material and a preparation method thereof. Background technique [0002] Agricultural mulch is the ground covering film, which is used to increase soil temperature, maintain soil moisture, maintain soil structure, prevent pests from invading crops, prevent microorganisms from causing diseases, and promote plant growth. In addition, plastic film mulching also has the effect of preventing rain and drainage in rainy seasons. The application of plastic film mulching in the arid areas of northern my country also has the effect of drought resistance and moisture conservation, which can increase crop yields by about 30% in large areas. [0003] At present, agricultural mulch film is not only used in vegetable cultivation, but also in the production of field crops, fruit trees, forestry, flowers and economic crops; not only for open f...

AI Technical Summary

Problems solved by technology

At the same time, the damage of residual film to crop growth is aggravated, mainly manifested in the fact that the growth of crop roots may be blocked, reducing the ability of crops to obtain water and nutrients, resulting in reduced yields

Nowadays, plastic film pollution is one of the serious rural ecological problems. Residual film pollutes groundwater and soil. If things go on like this, it will inevitably pose a serious threat to the sustainable development of agriculture.

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