A kind of garlic dregs-based liquid plastic film and preparation method thereof

A technology of liquid mulching film and garlic residue is applied in the field of agricultural mulching film, which can solve the problems of water retention, weakened thermal insulation effect, single function, destruction of agricultural soil ecological environment, etc.

Active Publication Date: 2022-06-24
NANJING FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This traditional plastic mulch has the following disadvantages: (1) it is not biodegradable and will cause damage to the ecological environment of agricultural soil; (2) it has a single function. Holes (sometimes it is necessary to lift the plastic film as a whole), and apply pesticides that can inhibit the growth of harmful bacteria or pests in the soil from the broken hole, but the water retention and heat preservation effect of the holed plastic film on the soil will be seriously affected. weaken
At present, there is no report on the product of making garlic residue into liquid mulch

Method used

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  • A kind of garlic dregs-based liquid plastic film and preparation method thereof
  • A kind of garlic dregs-based liquid plastic film and preparation method thereof
  • A kind of garlic dregs-based liquid plastic film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] (1) the garlic residue is pulverized into a garlic residue slurry with a pulverizer, and the garlic residue slurry obtained is filtered with a screen, so that the garlic residue particle size in the filtered garlic residue slurry is less than 10 meshes;

[0041] (2) mixing pregelatinized starch and water into starch slurry at 28°C, wherein the mass ratio of pregelatinized starch and water is 0.15:1;

[0042] (3) mixing the garlic residue slurry obtained in step (1) with the starch slurry obtained in step (2), and stirring at 35° C. for 1 h at a stirring speed of 200 r / min to obtain garlic residue-starch slurry , the mass ratio between the garlic residue slurry and the starch slurry is 0.09:1;

[0043] (4) the garlic residue-starch slurry obtained in step (3) is added to the three-necked flask equipped with a stirrer, a thermometer and a condenser, then an aqueous oxidant solution is added to the flask while stirring at 80°C, and the stirring speed is 1500r / min, the sti...

Embodiment 2

[0049] (1) the garlic residue is pulverized into a garlic residue slurry with a pulverizer, and the garlic residue slurry obtained is filtered with a screen, so that the garlic residue particle size in the filtered garlic residue slurry is less than 10 meshes;

[0050] (2) mixing pregelatinized starch and water into starch slurry at 32°C, wherein the mass ratio of pregelatinized starch and water is 0.2:1;

[0051] (3) mixing the garlic residue slurry obtained in step (1) with the starch slurry obtained in step (2), and stirring at 28° C. for 2 h at a stirring speed of 1000 r / min to obtain garlic residue-starch slurry , the mass ratio between the garlic residue slurry and the starch slurry is 0.5:1;

[0052] (4) the garlic residue-starch slurry obtained in step (3) is added to the three-necked flask equipped with a stirrer, a thermometer and a condenser, and then the oxidant aqueous solution is added to the flask while stirring at 88°C, and the stirring speed is 1000r / min, the...

Embodiment 3

[0058] (1) the garlic residue is pulverized into a garlic residue slurry with a pulverizer, and the garlic residue slurry obtained is filtered with a screen, so that the garlic residue particle size in the filtered garlic residue slurry is less than 10 meshes;

[0059] (2) mixing pregelatinized starch and water into starch slurry at 25°C, wherein the mass ratio between pregelatinized starch and water is 0.18:1;

[0060] (3) mixing the garlic residue slurry obtained in step (1) with the starch slurry obtained in step (2), and stirring at 25° C. for 3 h at a stirring speed of 2000 r / min to obtain garlic residue-starch slurry , the mass ratio between the garlic residue slurry and the starch slurry is 0.3:1;

[0061] (4) the garlic dregs-starch slurry obtained in step (3) is added to the three-necked flask equipped with a stirrer, a thermometer and a condenser, then at 85 ° C, an aqueous oxidant solution is added to the flask while stirring, and the stirring speed is 500r / min, th...

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Abstract

The invention provides a garlic residue-based liquid film and a preparation method thereof. The preparation of the film adopts garlic residue slurry, pregelatinized starch and acrylic acid monomer mixture as main raw materials, and the reaction process involves pre-oxidation process, pre-emulsification process and Emulsion radical polymerization process under the action of an initiator; the emulsion obtained after the reaction is not easy to stratify and has stability, suitable viscosity and sprayability; compared with bare soil that is not covered with plastic film, garlic residue base film can increase the content of The amount of water and soil temperature can also increase the yield of pakchoi. This garlic slag-based liquid mulch can also resist the infestation of diamondback moths on cabbage. The invention fully utilizes the waste resource of crops such as garlic dregs, has low cost, involves few production links, is easy to operate, and is suitable for popularization and application.

Description

Technical field: [0001] The invention provides a garlic residue-based liquid mulch film and a preparation method of the liquid mulch film, belonging to the technical field of agricultural mulch. Background technique: [0002] China is the main country producing garlic in the world. The history of garlic cultivation in China can be traced back to two thousand years ago. my country's garlic cultivation not only has a long history, but also has a large cultivation area and high yield. Compared with other crops, garlic is rich in alliin. Alliin originally exists in a stable and odorless form, but after garlic is sliced ​​or broken, the alliinase in it is activated. Under the catalysis of the enzyme, allicin is formed as a colorless oily substance. Allicin has various biological activities, such as prevention and treatment of cardiovascular diseases, anti-tumor and anti-pathogenic microorganisms, etc. Long-term consumption of allicin can play a role in disease prevention and hea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F251/00C08F251/02C08F289/00C08F220/18C08F220/14C08F220/06C08K5/42C08J5/18A01G13/02
CPCC08F251/00A01G13/0275C08J5/18C08J2351/02C08F251/02C08F289/00C08J2451/00C08K5/42C08F220/1804C08F220/14C08F220/06Y02W90/10Y02A40/28
Inventor 李文卓耿浩浩王丹阳
Owner NANJING FORESTRY UNIV
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