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Method for producing recyclable regenerative composite section with plastic paper aluminium flexible packaging box

A flexible packaging box and recycling technology, applied in the chemical industry, can solve the problems of difficult regeneration and reuse of products, low efficiency, expensive mold costs, etc., and achieve the effects of easy large-scale promotion and application, reduction of environmental pollution, and remarkable energy saving effect

Inactive Publication Date: 2014-01-01
青岛洁新再生资源科技开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The general process is: crushing, molding, heating for a long time, forming under pressure, heat preservation, cooling and setting. It is characterized by simple and pollution-free process, but there are also many defects.
First of all, the diameter of the crushed material must be at least 15mm, because too small crushing will make the material volume too large, which will bring expensive mold costs
Secondly, it must be heated for a long time. The reason is that the paper and plastic of this material are poor conductors of heat. Rapid heating will cause the end surface of the product to be pasted while the inside is still not hot. Only slow and long-term heating can be used to ensure product quality. , the problems of high energy consumption and low efficiency will inevitably arise, resulting in the inevitable high cost of products processed by this method
In addition, due to the temperature gradient of the products processed by this method, there is always a difference in hardness between the end face and the core, so once damaged, if it needs to be reused, the material must be ground into fine powder in order to be evenly re-used. It is mixed into the sheet material, so the product is difficult to regenerate and reuse

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Take 20Kg of plastic paper and aluminum flexible packaging box raw materials and crush them into fragments with a particle size of less than 8mm, add 0.04Kg of coupling agent and 3Kg of light calcium carbonate according to the proportion of the above formula, and mix at low speed at 100 degrees Celsius for 10 minutes. Add the crushed raw materials , and polyethylene wax 0.2Kg, stearic acid 0.2Kg, paraffin wax 0.1Kg, mixed at high speed to 115 degrees Celsius, kept at 125 degrees Celsius, cooled and discharged, added to the extruder and extruded through the die, and the extruder temperature was controlled at 160 degrees Celsius, the obtained The inner and outer crusts of tubular products are smooth and slightly darker in color. The diameter of the pipe is 69×89×100, and the measured radial crushing force is 1769N.

Embodiment 2

[0029] Take 20Kg of plastic paper and aluminum flexible packaging box raw materials and crush them into pieces with a particle size of less than 8mm, add 0.06Kg of coupling agent and 9Kg of light calcium carbonate in the proportion of the above formula, mix at low speed at 100 degrees Celsius for 10 minutes, and add the crushed raw materials. And polyethylene wax 0.8Kg, stearic acid 0.6Kg, paraffin wax 0.4Kg, mixed at high speed to 115 degrees Celsius, kept at 125 degrees Celsius, cooled and discharged, added to the extruder and extruded through the die, the temperature of the extruder was controlled at 170 degrees Celsius, the obtained tubular The inner and outer crust surface of the product is smooth and the color is slightly darker. The diameter of the pipe is 69×89×100, and the measured radial crushing force is 1838N.

Embodiment 3

[0031] According to the step of embodiment 1, add light calcium carbonate 15kg, pulverized raw material 50kg, polyethylene wax 2kg, stearic acid 2kg, paraffin 1Kg, coupling agent 0.25Kg according to the formula and mix, and the temperature is maintained above 100 degrees Celsius, Mix for 10 minutes, keep the temperature above 115 degrees Celsius for 5 minutes, cool and discharge into the extruder and extrude through the die. The temperature of the extruder was controlled at 155 degrees Celsius, the inner and outer crusted surface of the obtained tubular product was smoother than that of Example 1, and the actual strength was measured: the radial crushing force was 1159 N.

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Abstract

The invention discloses a method for producing recyclable regenerative composite section with a plastic paper aluminium flexible packaging box, comprising the following steps: the plastic paper aluminium flexible packaging box material is crushed into skin shreds with less than 10mm of diameter; assistants are added according to the formulation, and then the skin shreds and the assistants are fully kneaded at a certain temperature; and then the kneading effect is further strengthened by screw rod shearing, and then the material is extruded and formed through a mold by the screw rod. By adopting the method in the invention, the waste plastic paper aluminium flexible packaging box is processed and utilized, so as to lead no substances to be discharged in the whole production process without affecting the environment; when the product is damaged, the product can be crushed and recycled, and the product body can also be recycled; the method has wide social and economic benefits.

Description

technical field [0001] The invention relates to a method for producing a recyclable composite profile by using a plastic-paper-aluminum flexible packaging box, and belongs to the technical field of chemical industry. Background technique [0002] At present, a large number of plastic-paper-aluminum composite packaging materials are widely used in the market due to their low packaging prices and easy portability. While bringing convenience to people, because the composite materials are not easy to decompose, the processing and recycling of packaging materials It has become a major problem and has a certain adverse impact on the environment. There are two common treatment methods for this kind of waste material: one is to completely decompose the product into three substances of paper, plastic and aluminum, and restore the original state of the substance. However, it is impossible to achieve environmental protection and no pollution in the whole treatment process with the cur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C47/00B29C47/92B29B17/04B29B7/28C08L101/00C08K13/02C08K3/26C08K5/09B29C48/92
CPCY02W30/52Y02W30/62
Inventor 滕奇元窦中华
Owner 青岛洁新再生资源科技开发有限公司