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Preparation method for breathable bacteriostatic tree-protecting film

A technology for protective film and trees, applied in the field of landscaping, can solve the problems of waterproof, antibacterial, and unsatisfactory air permeability, and achieve the effect of enhanced bactericidal and antibacterial effect and low density.

Pending Publication Date: 2019-08-20
李明霞
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The main technical problem to be solved by the present invention is to provide a method for preparing a breathable and antibacterial tree protective film in view of the unsatisfactory waterproof, antibacterial and air-permeable performance of the tree protective film currently on the market.

Method used

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  • Preparation method for breathable bacteriostatic tree-protecting film

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0032] Put the corn cob into the pulverizer and grind for 30 minutes to get the corn cob crushed product, mix the corn cob crushed product with 20% sodium hydroxide solution at a mass ratio of 1:8, pour it into the reaction kettle, and heat it up to 70°C, stir and react for 20 minutes, filter, remove the filtrate, and collect the filter residue; mix the above filter residue with the malic acid solution with a mass fraction of 20% at a mass ratio of 1:5, put it into a high-temperature and high-pressure cooking tank, and set the high-temperature and high-pressure The temperature in the cooking tank is 180°C and the pressure is 1.8MPa. Under the above conditions, high temperature and high pressure cooking for 5h, discharging, filtration and separation to obtain a filter cake; the above filter cake, phenol, and 5% sodium hydroxide solution by mass fraction The mass ratio is 2:1:4, and then put into the vacuum distillation device after mixing. Set the temperature in the vacuum disti...

example 2

[0034] Put the corn cob into the pulverizer and grind for 35 minutes to get the corn cob crushed product, mix the corn cob crushed product with 20% sodium hydroxide solution at a mass ratio of 1:8, pour it into the reaction kettle, and heat it up to 75°C, stir and react for 25 minutes, filter, remove the filtrate, and collect the filter residue; mix the above filter residue with the malic acid solution with a mass fraction of 20% at a mass ratio of 1:5, put it into a high-temperature and high-pressure cooking tank, and set the high-temperature and high-pressure The temperature in the cooking tank is 190°C and the pressure is 1.9MPa. Under the above conditions, high temperature and high pressure cooking for 6h, discharging, filtration and separation to obtain a filter cake; the above filter cake, phenol, and 5% sodium hydroxide solution by mass fraction The mass ratio is 2:1:4, and then put into the vacuum distillation device, set the temperature in the vacuum distillation devic...

example 3

[0036] Put the corn cob into the pulverizer to grind for 40 minutes to get the corn cob crushed product, mix the corn cob crushed product with 20% sodium hydroxide solution at a mass ratio of 1:8, pour it into the reaction kettle, and heat it up to 80°C, stirred and reacted for 30 minutes, filtered, removed the filtrate, and collected the filter residue; mixed the above filter residue with the malic acid solution with a mass fraction of 20% at a mass ratio of 1:5, put it into a high-temperature and high-pressure cooking tank, and set the high-temperature and high-pressure The temperature in the cooking tank is 200°C and the pressure is 2.0MPa. Under the above conditions, high temperature and high pressure cooking for 7 hours, discharge, filtration and separation to obtain a filter cake; the above filter cake, phenol, and 5% sodium hydroxide solution by mass fraction The mass ratio is 2:1:4, and then put into the vacuum distillation device after mixing. Set the temperature in th...

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Abstract

The invention specifically relates to a preparation method for a breathable bacteriostatic tree-protecting film, belonging to the technical field of landscaping. The preparation method comprises the following steps: with corn cobs as a raw material, pulverizing the corn cobs to obtain pulverized corn cobs, subjecting the pulverized corn cobs to high-temperature high-pressure cooking and then reacting the cooked pulverized corn cobs with phenol so as to obtain phenolic resin with excellent adhesion; then with honeysuckle flowers and garlic as raw materials, extracting chlorogenic acid and allicin both having excellent bactericidal and bacteriostatic effects from the honeysuckle flowers and garlic, then preparing silica aerogel, mixed the silica aerogel with soybean lecithin under stirring to obtain modified silica aerogel; and finally, mixing the substances prepared above, pouring the prepared mixture on a plastic plate, performing tape casting to form a film, and drying the film to obtain the breathable bacteriostatic tree-protecting film. The breathable bacteriostatic tree-protecting film prepared in the invention has the characteristics of good water repellency, high bacteriostatic rate, good air permeability, etc.; the service life of the film is longer than the service life of ordinary tree protecting films; and the film has good application prospects.

Description

technical field [0001] The invention belongs to the technical field of landscaping, and in particular relates to a preparation method of an air-permeable antibacterial tree protective film. Background technique [0002] Trees are prone to insect damage during the growth process, and low temperature directly affects the normal development of trees. Therefore, tree insect control is a necessary measure to protect green vegetation. The traditional tree pest control method is to smear the trunk of the tree with lime slurry and a small amount of yellow mud to prevent pests from entering the inside of the trunk. With the development of agriculture, the more common method is to replace materials such as yellow mud used in traditional methods with chemicals such as insect repellents to achieve a more effective insect repellent effect. Yet adopt the method for this chemical desinsection, because medicine directly contacts with tree trunk, can cause not little influence to trunk itse...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/18C08L1/02C08L5/14C08L5/06C08L61/10C08K5/372C08K5/134C08K9/04C08K7/26
CPCC08J5/18C08J2301/02C08J2405/06C08J2405/14C08J2461/06C08K5/1345C08K5/372C08K7/26C08K9/04
Inventor 李明霞
Owner 李明霞
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