A dry farming agricultural district biological fully-degradable material and a method for preparing the same

Abstract

The invention provides a dry farming agricultural district biological fully-degradable material comprising a first film layer and a second film layer, wherein the degradation time of the first film layer is greater than that of the second film layer. The first film layer contains praseodymium stearate, hydrotalcite powder, ferrocene, strontium stearate, tourmalinite powder, resorcinol monobenzoate, 4-hydroxymethyl-2,6-di-tert-butylphenol, high-density polyethylene, low-density polyethylene, and linear low-density polyethylene. The second film layer contains polylactic acid, nano-silica, 3-aminopropyltriethoxysilane, lanthanum stearate, low-density polyethylene and linear low-density polyethylene. The dry farming agricultural district biological fully-degradable material has a double-layer structure and has the advantages of excellent waterproofness, fire resistance, tensile strength and elongation at break. When being used as mulching film, the dry farming agricultural district biological fully-degradable material can achieve excellent temperature regulation and water retention effects and is easily degradable; the problem that degradation rates of parts of conventional degradable mulching film available in the market are different can be effectively solved.

Description

technical field [0001] The invention relates to the technical field of plastic film, in particular to a fully biodegradable material for dry farming agricultural areas and a preparation method thereof. Background technique [0002] As we all know, the agricultural issue has always been an important strategic issue related to the national economy and people's livelihood in our country. As one of the important material materials of agricultural production, the application of mulch film has greatly promoted the improvement of agricultural output and efficiency, and led to the change of agricultural production mode and the rapid development of agricultural productivity. According to statistics, the popularization and application of plastic film mulching technology has made the area suitable for planting crops in the world move south and north by 2 in the southern and northern hemispheres respectively. o -4 o According to the geographical latitude, the altitude of 500-1000m is ...

AI Technical Summary

Problems solved by technology

Among them, the strength, stretchability, and light transmittance of starch-added degradable mulch are poor, and the degradation time is difficult to control; photodegradable mulch is greatly affected by the weather, and it is not easy to degrade when there is no light or cloudy; paper mulch or hemp ground The film has the problems of low strength, poor wind and rain resistance, easy to break, and not suitable for mechanical film laying

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