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Pasty degradable mulch film and preparation thereof

A technology for degrading mulch and paste, applied in botany equipment and methods, greenhouse cultivation, climate change adaptation, etc., can solve the problems of high packaging and transportation costs, inconvenient application, and high production costs, and achieve low cost and easy absorption , good film-forming effect

Inactive Publication Date: 2008-10-08
田秋喜
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The former is easy to use and can be sprayed on the spot to make a film, but the production cost is high, and the packaging and transportation costs are also high. For example, the "full degradable liquid film" disclosed in the patent document of CN 101007903A is a kind of physical mixing The aqueous colloidal solution formed; the latter requires manual laying and surrounding soil pressure, which is inconvenient to apply and has high production costs

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] a. Add 28Kg of weathered coal, 3Kg of sodium hydroxide and 50kg of water into a jacketed heating reactor, stir and heat to 90°C, and keep warm for 1 hour;

[0036] b. Add 10Kg polyvinyl alcohol, 5Kg sodium water glass, 1Kg sodium lauryl sulfate, 0.5Kg fatty acyldiethanolamine and 2.5Kg urea into the reaction kettle, stir evenly, discharge and cool to obtain the black paste target product .

Embodiment 2

[0038] a. Add 32Kg of humic acid, 3.5Kg of potassium hydroxide and 44kg of water into the reaction kettle with jacket heating, stir and heat to 90°C, and keep the temperature for 1 hour;

[0039] b. Add 10.5Kg hydroxyethyl cellulose, 5Kg potassium water glass, 3Kg octadecyltrimethylammonium chloride and 3Kg ammonium sulfate into the reaction kettle, stir evenly, discharge and cool to obtain the black paste target product .

Embodiment 3

[0041] a. Add 35Kg of lignite, 8Kg of potassium hydroxide and 35kg of water into a jacketed reactor, stir and heat to 90°C, and keep the temperature for 1 hour;

[0042] b. Add 10Kg polyacrylamide, 3Kg potassium water glass, 3Kg starch, 1.5Kg octadecyltrimethylammonium chloride, 0.5Kg fatty acyldiethanolamine, 3Kg ammonium sulfate, 1Kg ammonium phosphate into the reaction kettle, and stir evenly After discharging and cooling, the target product in the form of brown paste is obtained.

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PUM

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Abstract

The invention discloses a paste-type degradable plastic film and belongs to the agricultural plastic film production field. Humic acid, film forming agents, surfactants, modifiers, fertilizers and water are used to prepare black or brown paste; the paste is then diluted by water and sprayed out to form a film-shaped structure on the soil surface. Compared with the prior art, the paste-type degradable plastic film of the invention has low cost, good effect, convenient packaging and transportation, as well as good promotion and application value.

Description

technical field [0001] The invention relates to an agricultural mulching film, in particular to a paste-like degradable mulching film that can form a film-like structure by spraying. Background technique [0002] The wide application of agricultural plastic mulching technology has played an important role in improving crop yields. However, while this technology has brought huge benefits to agricultural production, it has also brought serious "white pollution" to the soil and the environment. Its specific manifestations are: affecting soil microbial activities and the formation of normal soil structure, resulting in a decline in soil fertility; residual plastic film has a negative impact on the physical properties of the soil, causing the root system of crops to develop in a curved shape, resulting in shortening of the root system, water absorption, and fertilizer absorption. The performance of the mulch film is reduced, resulting in a reduction in crop yield; the mulch film...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L99/00C08K13/02C08J5/18A01G9/22
CPCY02A40/25
Inventor 田秋喜郭生钰
Owner 田秋喜
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