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A kind of high-barrier pesticide packaging bottle and preparation method thereof

A high-barrier, packaging bottle technology, used in adhesives and other directions, can solve problems such as environmental pollution, accidental poisoning, infiltration, etc., to improve anti-permeability and mechanical properties, reduce moisture permeability and air permeability, and improve impermeability. and barrier effect

Active Publication Date: 2021-01-08
杭州普信塑料包装有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Liquid pesticides have always been packaged in aluminum bottles and glass bottles. Aluminum bottles are expensive. The main disadvantages of glass bottles are: 1. High breakage rate. Glass bottles are generally as high as 10-20% from leaving the factory to being used by farmers, which not only pollutes the environment , and increased costs; 2. The inner plug of the glass bottle is not tightly sealed, which is easy to cause leakage; 3. The glass bottle itself is heavy, which increases the transportation cost; 4. The bottle is difficult to recycle, and it is easy to cause accidental poisoning and environmental pollution; 5. Export transportation requires effective fumigation or heat-treated wooden outer packaging
Although the existing pesticide bottle with HDPE layer has simple structure, good chemical resistance, waterproof performance and mechanical performance, it can fully adapt to the purpose of long-distance transportation and high-intensity use, but some commonly used pesticides such as toluene and xylene The diluent components easily seep out through the bottle walls

Method used

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  • A kind of high-barrier pesticide packaging bottle and preparation method thereof
  • A kind of high-barrier pesticide packaging bottle and preparation method thereof
  • A kind of high-barrier pesticide packaging bottle and preparation method thereof

Examples

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Effect test

preparation example 1-3

[0044] In the following preparation examples, the water-based polyurethane-acrylate emulsion is selected from the JAZO type water-based polyurethane-acrylate emulsion of Nanjing Jiazhong Chemical Technology Co., Ltd., the lotus leaf hydrophobic agent is purchased from Zhengzhou Yuxiang Chemical Products Co., Ltd., and the sodium-based montmorillonite is selected from For the SM-P Na-based montmorillonite sold by Zhejiang Fenghong New Materials Co., Ltd., each of the above components can also use other types of products of the same type.

preparation example 1

[0045] Preparation example 1: EVOH dissolution: According to the ratio in Table 1, add 2 kg of EVOH and 8 kg of N,N-dimethylformamide into the reactor, heat while stirring, and heat to 180°C to make EVOH fully dissolved, wherein the ethylene content in RVOH is 38%;

[0046] Dissolution of modified montmorillonite: dissolve 2 kg of modified montmorillonite in 4 kg of N,N-dimethylformamide solution, mix well; mix: mix 1 kg of nano-silica and 1 kg of water-based polyurethane-acrylic acid After the ester emulsion is mixed evenly, add the dissolved EVOH and modified montmorillonite, stir at 80°C, add 1 kg of lotus leaf hydrophobic agent while stirring, and mix evenly.

[0047] Wherein the preparation method of modified montmorillonite is as follows: (1) according to the proportioning in table 2, get 2 parts of sodium-based montmorillonite and 5 parts of deionized water and mix, be mixed with montmorillonite suspension, adjust with HCl solution pH to 1, stirred at 80°C for 2h;

[...

preparation example 2

[0054] Preparation Example 2: EVOH Dissolution: According to the ratio in Table 1, add 2.3 kg of EVOH and 9 kg of N,N-dimethylformamide into the reactor, heat while stirring, and heat to 1850°C to make EVOH fully dissolved, wherein the ethylene content in RVOH is 38%;

[0055] Dissolution of modified montmorillonite: dissolve 3 kg of modified montmorillonite in 4.5 kg of N, N-dimethylformamide solution, and mix well;

[0056] Mixing: After mixing 2 kg of nano-silica and 3 kg of water-based polyurethane-acrylate emulsion evenly, add dissolved EVOH and modified montmorillonite, stir at 90°C, and add 2 kg of lotus leaf hydrophobic agent while stirring ,well mixed.

[0057] Wherein the preparation method of modified montmorillonite is as follows: (1) according to the proportioning in table 2, get 3.5 parts of sodium-based montmorillonite and 7.5 parts of deionized water and mix, be mixed with montmorillonite suspension, adjust with HCl solution pH to 1, stirred at 83°C for 2.5h;...

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Abstract

The invention discloses a high-barrier-property pesticide packing bottle and preparation thereof. The high-barrier-property pesticide packing bottle comprises a barrier layer, an adhesion layer and abase layer which adhere to one another successively from inside to outside, the barrier layer and the base layer are separately attached to the two sides of the adhesion layer, and the thickness ratioof the barrier layer, the adhesion layer and the base layer is 1: 0.5-0.8: 2-2.5. The preparation method comprises the following steps: S1, raw material fusing; S2, double-screw extrusion forming; S3, blow molding; and S4, blow molding of the barrier layer. The high-barrier-property pesticide packing bottle has excellent mechanical property and pesticide permeation resistance, and has the advantage of good barrier property. In addition, a pesticide packing bottle prepared by the preparation method is formed integrally, the mechanical property and the pesticide permeation resistance are excellent, and the barrier property is good.

Description

technical field [0001] The invention relates to the technical field of packaging containers, in particular to a high-barrier pesticide packaging bottle and a preparation method thereof. Background technique [0002] Liquid pesticides have always been packaged in aluminum bottles and glass bottles. Aluminum bottles are expensive. The main disadvantages of glass bottles are: 1. High breakage rate. Glass bottles are generally as high as 10-20% from leaving the factory to being used by farmers, which not only pollutes the environment , and increased costs; 2. The inner plug of the glass bottle is not tightly sealed, which is easy to cause leakage; 3. The glass bottle itself is heavy, which increases the transportation cost; 4. The bottle is difficult to recycle, and it is easy to cause accidental poisoning and environmental pollution; 5. Export transportation requires effective fumigation or heat-treated wooden outer packaging. [0003] In 1992, after the former Ministry of Che...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/08C08L23/06C08L79/08C08K9/04C08K3/34C08K3/36C08K3/22C09J123/06C09J123/08
CPCC08K2003/2296C08K2201/011C08L23/06C08L23/0861C08L79/08C08L2201/08C08L2203/10C09J123/06C09J123/0815C08L75/04C08K9/04C08K3/346C08K3/36C08L23/0815C08K3/22
Inventor 冯建水
Owner 杭州普信塑料包装有限公司