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Agricultural liquid mulching film and production method thereof

An agricultural mulch, liquid technology, applied in chemical instruments and methods, applications, agriculture, etc., can solve the problem of crop areas that cannot adapt to high precipitation, the tensile strength and water resistance of liquid mulch are not strong, and the viscosity of biodegradable liquid mulch is formed. Low problems, to achieve the effect of enhancing viscosity, non-toxic side effects, and improving strength

Active Publication Date: 2015-01-28
王信伟
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The Chinese patent application number 200710056353.3 discloses "a biodegradable liquid mulch film and its preparation method". The method is to mix polyvinyl alcohol, carboxymethyl cellulose, starch, surfactant, plasticizer and crosslinking agent The solution is stirred, heated, gelatinized, and reacted to obtain a biodegradable liquid mulch film. After further experiments, the biodegradable liquid mulch film obtained has a low viscosity and is easy to decompose when exposed to water. It cannot be adapted to crop areas with heavy rainfall.
The Chinese patent with the publication number CN102295934A discloses "a liquid agricultural mulch film and its production method". Not only will peanuts and other crops produce harmful substances, but also cause secondary damage and pollution to the soil. At the same time, the tensile strength and water resistance of the liquid mulch produced are not strong

Method used

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  • Agricultural liquid mulching film and production method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Before the production of liquid agricultural mulch film, take the following raw materials according to the weight ratio: 50 parts of sweet potato starch, 30 parts of industrial alcohol, 25 parts of white sugar, 20 parts of chitin, 15 parts of polyacrylamide, 15 parts of sodium fatty acid , 12 parts of polyurethane water-based resin, 10 parts of green pigment agent, 5 parts of barium stearate, 5 parts of water retaining agent, 2 parts of crosslinking agent SAC-100, 3 parts of magnesium aluminum hydrotalcite, 1 part of Surfactant, 6 parts soil conditioner and 1500 parts water.

[0018] The production method of the liquid agricultural mulch film: ① Take 400 parts of the mass of aqueous solution into a stainless steel reaction tank, then add 50 parts of sweet potato starch and 25 parts of white sugar, use a steam boiler to heat, stir while heating, and gelatinize at 70 ° C for 30 Minutes, into a transparent and viscous starch paste;

[0019] ② Then add 30 parts of industri...

Embodiment 2

[0025] Before the production of liquid agricultural mulch film, take the following raw materials according to the weight ratio: 55 parts of sweet potato starch, 35 parts of industrial alcohol, 30 parts of white sugar, 25 parts of chitin, 20 parts of flocculant 3630S, 18 parts of polyethylene Alcohol, 15 parts of polyurethane water-based resin, 15 parts of green pigment agent, 10 parts of barium stearate, 8 parts of water retaining agent, 6 parts of crosslinking agent SAC-100, 4 parts of magnesium aluminum hydrotalcite, 2 parts of surfactant, 8 parts of soil conditioner and 2000 parts of water.

[0026] The production method of the liquid agricultural mulch film: ① Take 500 parts of aqueous solution by mass and add it to a stainless steel reaction tank, then add 55 parts of sweet potato starch and 30 parts of white sugar, use a steam boiler to heat, stir while heating, and gelatinize at 70°C for 30 Minutes, into a transparent and viscous starch paste;

[0027] ② Then add 35 pa...

Embodiment 3

[0033] Before the production of liquid agricultural mulch film, take the following raw materials according to the weight ratio: 60 parts of sweet potato starch, 40 parts of industrial alcohol, 40 parts of white sugar, 30 parts of chitin, 25 parts of flocculant 3630S, 20 parts of sodium fatty acid , 20 parts of polyurethane water-based resin, 20 parts of green pigment agent, 15 parts of barium stearate, 10 parts of water retaining agent, 10 parts of crosslinking agent SAC-100, 5 parts of magnesium aluminum hydrotalcite, 3 parts of Surfactant, 10 parts soil conditioner and 2500 parts water.

[0034]The production method of the liquid agricultural mulch film: ① Take 600 parts of the mass of aqueous solution into a stainless steel reaction tank, then add 60 parts of sweet potato starch and 40 parts of white sugar, heat with a steam boiler, stir while heating, and gelatinize at 70 ° C for 30 Minutes, into a transparent and viscous starch paste;

[0035] ② Then add 40 parts of indu...

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Abstract

The invention relates to an agricultural liquid mulching film and a production method thereof. The agricultural liquid mulching film is prepared by taking sweet potato starch, white sugar, industrial alcohol, a reinforcing agent, a flocculating agent, an emulsifier, a filming agent, a stabilizing agent, a water retaining agent, a cross-linking agent, a heat-preservation agent, a surfactant, a soil conditioning agent and water as raw materials through the steps of raw material gelatinization, condensation, stirring, copolymerization, reaction, cross-linking and the like. Compared with other similar products in the market, the agricultural liquid mulching film has the characteristics of large tensile strength, breakage elongation degree and high water resistance, is relatively low in cost, relatively good in market prospect, and easy to popularize and apply in a large scale.

Description

technical field [0001] The invention relates to a liquid agricultural mulch film and a production method thereof, belonging to the technical field of polymer material preparation. Background technique [0002] The use of traditional plastic film cultivation technology can realize the heat preservation, moisture conservation and fertility maintenance of crops, so as to achieve the purpose of increasing production and income. It is an effective means for early maturity and production of crops. The traditional plastic mulch is a plastic film made of polyethylene or polystyrene by a blow molding machine, which has disadvantages such as difficult decomposition of raw materials, environmental pollution, poor soil adhesion, and high cost. At present, both at home and abroad are researching and developing degradable, efficient and environmentally friendly mulch technology, and the concept of liquid mulch is proposed, that is, the organic compound of polymer material is diluted with ...

Claims

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Application Information

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IPC IPC(8): C08L3/02C08L5/08C08L33/26C08L75/04C08K13/02C08K5/098C08K3/26C09K17/52
Inventor 王信伟高树愈
Owner 王信伟
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