Water-soluble seed packaging material and preparation method thereof

Abstract

The invention relates to a water-soluble seed packing material and a preparation method of the water-soluble seed packing material. The water-soluble seed packing material is prepared through processing the following raw materials in parts by weight: 80-120 parts of nanometer-inorganic-material-modified polyvinyl alcohol, 20-30 parts of water-soluble chitosan, 1-3 parts of plasticizer, 1-3 parts of surface activator, 0.2-0.5 part of antifoam agent, 0.5-0.6 part of propylene glycol fatty acid ester, 0.2-0.3 part of bonder, 0.2-0.3 part of disperser and 0-0.3 part of colorant; the mass ratio of the nanometer-inorganic-material-modified polyvinyl alcohol to the water-soluble chitosan is 4:1; the plasticizer is an equal-proportion mixture of polyethylene glycol and acetamide; and the surface activator is an equal-proportion mixture of polyoxyethylene oleyl ether and polyoxyethylene octylphenyl ether. The water-soluble material disclosed by the invention has a wide solution temperature range, high solution efficiency and good solution effect; nearly no fragment is left after solution, so that no further artificial or mechanical processing is required; moreover, the barrier property and the homogeneity of the film are excellent.

Description

technical field [0001] The invention relates to a water-soluble seed packaging material and a preparation method thereof. Background technique [0002] Water-soluble polymer films are usually used in quantitative packaging materials to simplify dispersion, pouring, quantification and dissolution, such as for quantitative packaging of seeds, the seeds are packed at fixed intervals and buried in the ground, to protect and save valuable seeds, and to save thinning This kind of packaging material has been widely used in the market, but this kind of polymer film has higher requirements for dissolution temperature. When the dissolution temperature is high, the dissolution efficiency is high and the dissolution performance is good. , almost no debris residue, no need for manual or mechanical further treatment, when the dissolution temperature is lowered, the dissolution efficiency is significantly reduced, requiring a longer dissolution time, which affects the germination and survi...

AI Technical Summary

Problems solved by technology

[0002] Water-soluble polymer films are usually used in quantitative packaging materials to simplify dispersion, pouring, quantification and dissolution, such as for quantitative packaging of seeds, the seeds are packed at fixed intervals and buried in the ground, to protect and save valuable seeds, and to save thinning This kind of packaging material has been widely used in the market at present, but this kind of polymer film has higher requirements on the dissolution temperature. When the dissolution temperature is high, the dissolution efficiency is high and the dissolution performance is good. , almost no debris residue, no further manual or mechanical treatment is required. When the dissolution temperature is lowered, the dissolution efficiency is significantly reduced, and a longer dissolution time is required, which affects the germination and survival rate of seeds. In addition, the barrier properties of existing packaging materials are not good. Good, the external air and moisture may be replaced with the air in the packaging bag, causing mildew of the seeds, etc., affecting the shelf life and quality of the seeds