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Aluminum-plastic separating agent and aluminum-plastic separating method

A technology of aluminum-plastic separation and initiator, applied in the direction of reagents, educts, plastic recycling, etc., can solve the problems of environment and operator injury, difficult aluminum-plastic composite membrane separation, high volatility, etc., achieve less loss and promote dissolution , good permeability and surface active effect

Inactive Publication Date: 2021-07-13
江苏澄奥环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the rapid development of my country's economy, the amount of packaging waste materials has also increased surprisingly, including a large number of aluminum-plastic composite film materials. The aluminum and plastic in the film can not only effectively reduce the pollution to the environment, but also bring considerable economic and social benefits; close, because the existing aluminum-plastic composite film mainly has two molding methods, the plastic is melted by hot pressing After bonding with aluminum or through a strong organic adhesive, it is difficult to separate the aluminum-plastic composite film solely relying on the swelling property of the organic solvent to the plastic, and usually the organic solvent is toxic and volatile, which is harmful to the environment and operation. person causing injury

Method used

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  • Aluminum-plastic separating agent and aluminum-plastic separating method

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Effect test

Embodiment 1

[0020] A kind of aluminum-plastic separating agent, it has included each raw material of following weight part:

[0021] Hydroxyethyl cellulose 1, formic acid 10, fatty acid diethanolamide 1, ethylenediaminetetraacetic acid 2, methyl methacrylate 20, ammonium persulfate 0.6.

[0022] The preparation method of described separating agent comprises the following steps:

[0023] (1) Get ammonium persulfate, join in the deionized water of 30 times of its weight, stir, obtain initiator solution;

[0024] (2) Mix ethylenediaminetetraacetic acid and methyl methacrylate, add it to deionized water 20 times the weight of the mixture, stir evenly, send it into the reaction kettle, feed nitrogen gas, and adjust the temperature of the reaction kettle to 75°C , dropwise adding the above-mentioned initiator solution, after the dropwise addition is completed, heat preservation and stirring for 3 hours, discharge and cool to obtain a polymer emulsion;

[0025] (3) Take ethyl cellulose, add it...

Embodiment 2

[0032] A kind of aluminum-plastic separating agent, it has included each raw material of following weight part:

[0033] Hydroxyethyl cellulose 2, formic acid 16, fatty acid diethanolamide 2, ethylenediaminetetraacetic acid 4, methyl methacrylate 30, ammonium persulfate 0.7.

[0034] The preparation method of described separating agent comprises the following steps:

[0035] (1) Get initiator, join in the deionized water of 40 times of its weight, stir, obtain initiator solution;

[0036] (2) Mix ethylenediaminetetraacetic acid and methyl methacrylate, add it to deionized water 30 times the weight of the mixture, stir evenly, send it into the reaction kettle, feed nitrogen gas, and adjust the temperature of the reaction kettle to 80°C , dropwise adding the above-mentioned initiator solution, after the dropwise addition is completed, heat preservation and stirring for 4 hours, discharge and cool to obtain a polymer emulsion;

[0037] (3) Take ethyl cellulose, add it to 70 tim...

Embodiment 3

[0044] A kind of aluminum-plastic separating agent, it has included each raw material of following weight part:

[0045] Hydroxyethyl cellulose 1, formic acid 14, fatty acid diethanolamide 2, ethylenediaminetetraacetic acid 3, methyl methacrylate 25, ammonium persulfate 0.6.

[0046] The preparation method of described separating agent comprises the following steps:

[0047] (1) Get initiator, join in the deionized water of 36 times of its weight, stir, obtain initiator solution;

[0048] (2) Mix ethylenediaminetetraacetic acid and methyl methacrylate, add it to deionized water 25 times the weight of the mixture, stir evenly, send it into the reaction kettle, feed nitrogen gas, and adjust the temperature of the reaction kettle to 77°C , dropwise adding the above-mentioned initiator solution, after the dropwise addition is completed, heat preservation and stirring for 3 hours, discharge and cool to obtain a polymer emulsion;

[0049] (3) Take ethyl cellulose, add it to 65 tim...

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Abstract

The invention discloses an aluminum-plastic separating agent, which is prepared from the following raw materials in parts by weight: 1 to 2 parts of hydroxyethyl cellulose, 10 to 16 parts of formic acid, 1 to 2 parts of fatty acid diethanolamide, 2 to 4 parts of ethylenediamine tetraacetic acid, 20 to 30 parts of methyl methacrylate and 0.6 to 0.7 part of initiator. The polymer emulsion is obtained bypolymerization under the action of the initiator by taking ethylene diamine tetraacetic acid as adoping agent and blending the doping agent with methyl methacrylate monomer. The polymer emulsion has good permeability and surface activity, a small amount of aluminum oxide on an aluminum surface layer can be dissolved by formic acid, and obtained aluminum ions can be reacted and compounded with ethylenediaminetetraacetic acid, so that the dissolution of an aluminum oxide film on the plastic surface is promoted, and the separation effect is improved; according to the separation method disclosed by the invention, most of aluminum and plastic materials can be obtained, the loss is relatively less, and the requirement on equipment is also low.

Description

technical field [0001] The invention belongs to the field of aluminum-plastic separation, and in particular relates to an aluminum-plastic separating agent and a method for separating aluminum-plastic. Background technique [0002] Aluminized composite film series products are suitable for moisture-proof, light-proof and vacuum packaging of chemical raw materials, pharmaceutical intermediates, and lithium iron phosphate cathode materials. It adopts two-layer structure, has good toughness, and has good water and oxygen barrier functions. The size is not limited, and packaging bags of different specifications and styles can be customized according to the body, and can be made into flat bags, three-dimensional bags and other styles. In order to solve the contradiction between waste pollution and resource shortage, many countries have proposed a circular economy model. With the rapid development of my country's economy, the amount of packaging waste materials has also increase...

Claims

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Application Information

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IPC IPC(8): C08J11/04C22B21/00C22B7/00C08F120/14C08L101/00
CPCC08F120/14C08J11/04C08J2300/30C22B21/0023Y02W30/62Y02P10/20Y02P20/143
Inventor 胡鹏程
Owner 江苏澄奥环保科技有限公司
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