Full-biodegradation mulch film for rice planting and production method thereof

Abstract

The invention provides a full-biodegradation mulch film for rice planting and a preparation method thereof. The full-biodegradation mulch film for rice planting comprises an inner layer, a middle layer and an outer layer, and comprises ingredients such as PBAT, PLA, PHA and PPC; the inner layer, the middle layer and the outer layer of the full-biodegradation mulch film are prepared by a three-layer co-extrusion technology. The full-biodegradation mulch film for rice planting and the preparation method at least have the following advantages that the rice growth period is shortened; the rice yield is increased; the rice quality is improved; the manual weeding cost is reduced; the pesticide consumption is reduced; the pesticide residue is reduced; the use cost of a user is reduced through thickness reduction; meanwhile, the problems that the existing full-biodegradation mulch film has poor hydrolysis resistant performance, and is not suitable for rice planting conditions are solved by adding the functional auxiliary agents through the three-layer co-extrusion process. The degradation performance controllability is high; the growth requirements of the crops can be met. The price is about 5 percent lower than that of abroad similar products.

Description

technical field [0001] The invention belongs to the field of new materials, and in particular relates to a fully biodegradable plastic film for rice planting and a production method thereof. Background technique [0002] Rice is the main food crop in my country and is related to the people's livelihood of the country. In the existing rice planting technology, rice planting has problems such as limited planting area, shortage of water resources, serious soil pollution, high weeding costs, heavy insect damage, and frequent low temperature and chilling damage in Northeast China. In recent years, rice cultivation is facing more and more serious problems such as limited planting range, water shortage, and serious soil pollution. Especially due to the increase in labor costs year by year, according to estimates, according to 80 yuan per day for one labor, the labor cost for weeding per mu is 200-350 yuan. The excessive use of herbicides, pesticides, and chemical fertilizers in r...

AI Technical Summary

Problems solved by technology

Ordinary mulching can effectively solve low-temperature chilling damage, and the water-saving effect is obvious, but another problem brought about by the use of ordinary mulch is that it is difficult to recycle and pollute the environment.

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