Preparation method for biomass biodegradable seedling-raising tray

A technology of seedling trays and biomass, applied in the field of preparation of degradable seedling trays, can solve the problems of white pollution, high cost of plastic trays, difficult to degrade, etc., and achieve the effect of reducing pollution, eliminating white pollution, and good root elasticity

Inactive Publication Date: 2016-07-13
SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the cost of plastic pallets is high, it is difficult to degrade, and it will cause white pollution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0016] (1) Mix the dry straw with urea at a mass ratio of 50:1, and then add water at a mass ratio of 10:1. After stacking, seal it at a temperature of 25-45°C for 30 days. (2) Under the condition of adding 2% polyvinyl alcohol aqueous solution to the biomass, the biomass is refined and pulverized to a grass pulp slurry with a size of 100 mesh. (3) The grass pulp slurry is made into a wet base of a seedling tray. (4) Send the wet tray to the drying line (at a temperature of 80-120°C) to remove water and dry it to obtain a degradable seedling tray.

example 2

[0018] (1) Mix the dry corn stalks with urea at a mass ratio of 50:1, and then add water at a mass ratio of 10:1. After stacking, seal them at a temperature of 25-45°C for 30 days. (2) Under the condition of adding 5% polyvinyl alcohol aqueous solution to the biomass, the biomass was refined and pulverized to a grass pulp slurry with a size of 80 mesh. (3) The grass pulp slurry is made into a wet base of a seedling tray. (4) Send the wet tray to the drying line (at a temperature of 80-120°C) to remove water and dry it to obtain a degradable seedling tray.

example 3

[0020] (1) Mix the dried field weeds with urea at a mass ratio of 50:1, and then mix with water at a mass ratio of 10:1. After stacking, seal at a temperature of 25-45°C for 30 days. (2) Under the condition of adding 4% polyvinyl alcohol aqueous solution to the biomass, the biomass was refined and pulverized to a grass pulp slurry with a size of 90 mesh. (3) The grass pulp slurry is made into a wet base of a seedling tray. (4) Send the wet tray to the drying line (at a temperature of 80-120°C) to remove water and dry it to obtain a degradable seedling tray.

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Abstract

The invention relates to a preparation method for a biomass biodegradable seedling-raising tray. The preparation method comprises the following steps: mixing biomass with urea in a mass ratio being 50:1, mixing the mixture with water in a mass ratio being 10:1, sealing for 30 days at the temperature of 25-45 DEG C after stacking; then, adding a polyvinyl alcohol aqueous solution with concentration being 0.1-5%, grinding and crushing the biomass (straws or stalks) into straw slurry with size being 50-100 meshes; preparing the slurry into a seedling-raising tray wet green body; and finally, feeding the seedling-raising tray wet green body to a drying line ( with the temperature being 80-120 DEG C) to dry, thereby obtaining the biodegradable seedling-raising tray. According to the preparation method, the needed material source is wide, obvious advantages on cost and environmental pollution are achieved, the process is simple, and the operation is convenient.

Description

technical field [0001] The invention relates to a preparation method of a degradable seedling raising tray, in particular to a preparation method of a biomass degradable seedling raising tray. Background technique [0002] With the continuous advancement of agricultural science and technology, industrialized seedling trays have developed rapidly, thereby realizing agricultural scale operation, specialized production, mechanization and automation. Among them, seedling trays are the key to achieving the above goals. At present, seedling trays are usually molded from plastic materials such as expanded polystyrene or polyethylene or processed from hard plastic. However, the cost of plastic pallets is high, it is difficult to degrade, and it will cause white pollution. Contents of the invention [0003] The purpose of the present invention is to provide a preparation method of biomass degradable seedling trays, which reduces the difficulty of the biomass pulping process, relea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G9/10
CPCA01G9/0291A01G24/60
Inventor 张文政黄丽李天生
Owner SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY
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