Paddy field fully degradable liquid film and preparation method thereof

A liquid film, fully degradable technology, applied in the fields of botanical equipment and methods, chemical instruments and methods, potash fertilizers, etc., can solve the problems of non-degradable plastic mulch, poor plant drought resistance, time-consuming and labor-intensive mulching, etc. Human and material resources, the effect of easy promotion

Active Publication Date: 2019-04-09
沈阳美华农业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Plastic mulching can effectively save water use. The existing mulch is mostly plastic mulch. Although it can save water to a certain extent, the recycling of mulch is a time-consuming and laborious work, and the recycled plastic mulch hardly degrades. It is easy to cause environmental pollution
[0003] The existing polymer liquid mulch film, which uses crop straw as the main raw material, combined with lignin, collagen, etc., can solve the problem of white pollution, but it has the problem of short film-forming time, which has a great effect on the drought resistance of plants in the later stage. Poor, and there is no toughness after the mulch is formed, causing the surface to crack easily

Method used

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  • Paddy field fully degradable liquid film and preparation method thereof
  • Paddy field fully degradable liquid film and preparation method thereof

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preparation example Construction

[0029] In the present invention, the method for preparing tea water preferably includes: boiling tea leaves in boiling water. In the present invention, the mass ratio of the tea leaves to boiling water is preferably 1:200-500, more preferably 1:300; the boiling time is preferably 10-20 minutes, more preferably 15 minutes. After the tea leaves are boiled, preferably, the tea leaves are filtered out and cooled to room temperature for later use.

[0030] In the present invention, the liquid film is a viscous oily liquid with a pH value of 6-8.

[0031] The invention provides a method for preparing a fully degradable liquid film in a paddy field, comprising the following steps:

[0032] (a) mixing cellulose with choline chloride to obtain a liquid phase mixture;

[0033] (b) mixing polyethyl acrylate with modified starch to obtain a polymer material;

[0034] (c) mixing the liquid phase mixture with the polymer material to obtain a mixed material;

[0035] (d) mixing the mixed...

Embodiment 1

[0047] Weigh 1 part of cellulose, 3 parts of choline chloride, 1 part of polyethyl acrylate, 10 parts of modified starch, 20 parts of potassium silicate, 5 parts of glycerol by weight, mix cellulose with choline chloride, Glycerol and potassium silicate, and polyethylacrylate and modified starch are mixed separately, and after stirring, a liquid phase mixture, a mixed solution and a polymer material are respectively obtained; the liquid phase mixture and the polymer material are mixed and added to the mixed solution, and then Add 5 parts of tea water that is boiled for 10 minutes according to the mass ratio of tea and water at 1:200, mix well, pass through a 400-mesh sieve, and settle for 12 hours to obtain a fully degradable liquid mulch film for paddy fields.

Embodiment 2

[0049] Weigh 5 parts by weight of cellulose, 9 parts of choline chloride, 6 parts of polyethylacrylate, 20 parts of modified starch, 45 parts of potassium silicate, 20 parts of glycerin, and mix cellulose with choline chloride, Mix glycerin with potassium silicate and polyethyl acrylate and modified starch separately, and after stirring, obtain liquid phase mixture, mixed solution and polymer material respectively; add liquid phase mixture and polymer material to the mixed solution after mixing, and then add 10 parts of tea water boiled for 15 minutes according to the mass ratio of tea and water at 1:300, mixed thoroughly, passed through a 400-mesh sieve, and settled for 12 hours to obtain a fully degradable liquid mulch film for paddy fields.

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Abstract

The invention provides a fully-degradable liquid film for paddy fields, and belongs to the field of agricultural production and application. The fully-degradable liquid film comprises potassium silicate, polyethylene acrylate, modified starch, glycerol, hop, fiber bundles, choline chloride and tea water. The fully-degradable liquid film has the advantages that the soil temperatures can be increased by the fully-degradable liquid film, the fully-degradable liquid film is good in water retention, the potassium silicate can be decomposed to obtain silicon fertilizers and potassium fertilizers which can be absorbed and utilized by paddy, accordingly, the problem of soil environment pollution due to mulching films can be thoroughly solved, and the labor cost generated when the mulching films are cleaned can be saved; plant nutrition can be increased, and effects of strengthening stems, resisting lodging and diseases and increasing yields can be realized; processes for manufacturing the fully-degradable liquid film are simple, the fully-degradable liquid film is good in stability, high in pertinence, convenient to transport, low in cost and easy to operate and popularize, large quantities of labor and materials can be saved, early maturity of the paddy can be promoted by 7-10 days, and positive effects of promoting the yield of the paddy can be realized.

Description

technical field [0001] The invention belongs to the field of agricultural production application, and in particular relates to a fully degradable liquid membrane for paddy fields and a preparation method thereof. Background technique [0002] China is the country with the lowest water per capita in the world. Controlling the abuse of water resources and rationally using water resources will be the direction of future development. Plastic mulching can effectively save water use. The existing mulch is mostly plastic mulch. Although it can save water to a certain extent, the recycling of mulch is a time-consuming and laborious work, and the recycled plastic mulch hardly degrades. It is easy to cause environmental pollution. [0003] The existing polymer liquid mulch film, which uses crop straw as the main raw material, combined with lignin, collagen, etc., can solve the problem of white pollution, but it has the problem of short film-forming time, which has a great effect on t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L3/00C08L33/08C08L1/02C08K5/19C08K3/34C05D1/00C05G3/04C09K17/52A01G13/02C05G3/80
CPCA01G13/0275C05D1/00C05G3/80C08J5/18C08J2303/00C08J2401/02C08J2433/08C08L3/00C08L2203/16C08L2205/03C09K17/52C08L33/08C08L1/02C08K5/19C08K3/34C05D9/00C05F11/02
Inventor 张利符文章牛旭袁隆平马国辉袁定安曹文润左伟张芳李文路
Owner 沈阳美华农业有限公司
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