Degradable multiband light conversion ground film and preparation method thereof

Abstract

The invention discloses a degradable multiband light conversion ground film and a preparation method of the degradable multiband light conversion ground film, belonging to the technical field of ground covering films. The preparation method is characterized by comprising the steps of weighing degradable polymer base material master batches, organic light conversion dyes and rare earth light conversion powders according to percentage, stirring uniformly, then directly conveying the mixture into a blow film extruder, and extruding a film to obtain the degradable multiband light conversion ground film. The degradable multiband light conversion ground film has the positive effects that the ground film prepared by raw materials is natural plant fibers and can be supplied sufficiently; the ground film can be degraded slowly in the using process; the seedling of a plant can break the film to grow; and after being used, the ground film does not need to be collected for being processed, and can be degraded directly to be taken as an environment-friendly ecological fertilizer. A light converting agent is added in the ground film, the ultraviolet light and the green-yellow light in the sunlight harmful to the growth of the plant can be converted into orange red light or blue light necessary for the photosynthesis of the plant, not only is the growth of crops facilitated, the film propping capability is reinforced, the ground film also plays the roles of accelerating the ripening, increasing the production, and improving the quality of the crops, and is a green and high-efficiency light fertilizer.

Description

technical field [0001] The invention belongs to the technical field of ground covering films, and specifically relates to a degradable light-converting film and a preparation method thereof. [0002] Background technique [0003] The use of agricultural ground covering films (hereinafter referred to as mulch films) in a low temperature environment can improve the survival rate of crops, and play a role in accelerating the ripening and increasing production of crops, so it is widely used. The existing technology usually uses polyethylene blow molding to prepare mulch, and polyethylene raw materials are derived from non-renewable resources such as petrochemical industry. With the increasing shortage of petrochemical resources, the long-term supply of mulch raw materials has brought crisis and the cost is getting higher and higher. . Moreover, polyethylene mulch is non-degradable or takes a long time to slowly degrade after use, and usually it will bring white pollution to th...

AI Technical Summary

Problems solved by technology

The existing technology usually uses polyethylene blow molding to prepare mulch, and polyethylene raw materials are derived from non-renewable resources such as petrochemical industry. With the increasing shortage of petrochemical resources, the long-term supply of mulch raw materials has brought crisis and the cost is getting higher and higher.

Moreover, polyethylene mulch is not degradable after use or it takes a long time to degrade slowly. Usually, if it is not treated, it will bring white pollution to the environment. If it is incinerated, it will bring a lot of waste gas pollution

Moreover, in the later stage of crop seedling growth, the seedlings need to break through the mulch to grow healthily and freely. Using the existing polyethylene mulch requires manual puncture of the mulch to help the seedlings penetrate the mulch to grow, otherwise it will affect the growth rate of the crop and even cause abnormal growth of the crop.

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