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Method for producing wood plastic plate by using waste plastics of household garbage

A technology for domestic waste and waste plastics, which is applied in the field of using waste plastics in domestic wastes to produce wood-plastic panels, and can solve problems such as water content, unclean plastics, impurities, etc.

Inactive Publication Date: 2013-08-14
冯国恒
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the disadvantage is that the sorted plastics are not clean, contain water, and have impurities. They must be cleaned, dried, and pelletized before they can be used as raw materials for plastic products.
Cleaning and drying involve secondary pollution
From an economic point of view, after cleaning, drying, and granulation, it is further processed into finished products. The production cost is high, the product price is low, and the input and output are unreasonable.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A method for producing wood-plastic boards by using waste plastics in domestic garbage,

[0021] 1) Take the waste plastics sorted from domestic garbage and shred them into 50-200mm flakes or crush them into 0.5-2mm particles;

[0022] 2) Modification: treat flake or granular materials at 95°C for 20 seconds, and cool to room temperature;

[0023] 3) Add sawdust with a particle size of 0.5-2mm to the modified material, mix evenly, and the mass content of sawdust in the mixed material is 20%;

[0024] 4) Cloth: Put the mixed material into the mold and send it to the hot press for hot pressing. After the material is hot-melted and hot-pressed, it will be shaped into a plate shape. Open the mold and take the plate out of the mold. After the plate is out of the mold, it will be edged , Sanding processing Serve finished wood-plastic panels. The thickness of the wood-plastic board is 1.5cm.

[0025] During the hot pressing process, the pressure of the hot press is 8mPa / cm ...

Embodiment 2

[0027] The difference from Example 1 is:

[0028] During the modification process, treat flake or granular materials at 90°C for 15 seconds and cool to room temperature;

[0029] The mass content of sawdust in the material after mixing is 10%;

[0030] During the hot pressing process, the pressure of the hot press is 9mPa / cm 2 ; The hot-pressing temperature is 195° C., and the hot-pressing time is 120 minutes. The thickness of the wood-plastic board is 2.0cm.

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Abstract

The invention relates to a method for producing a wood plastic plate by using waste plastics of household garbage. According to the method, a wood plastic product is produced by the steps of tearing plastic substances separated from garbage, modifying, adding sawdust, mixing and stirring, distributing materials, performing hot-melting hot-pressing forming and the like. The method comprises the following steps of: placing the materials after material distribution into a die; allowing the die to enter a hot press; heating the materials in the die to 180 to 200 DEG C; melting the plastics and mixing the plastics with the sawdust completely; and taking the die out of the hot press and cooling to prepare the wood plastic plate. The method has the advantage that the conventional technology for producing the wood plastic plate mainly adopts a screw extrusion technology and the method provided by the invention adopts a hot-melting hot-pressing technology. The hot-melting hot-pressing technology has the advantage that the plastics separated from the garbage can be directly used for manufacturing the wood plastic plate.

Description

technical field [0001] The invention relates to a method for converting solid waste into useful things, in particular to a method for producing wood-plastic boards from waste plastics in domestic waste. Background technique [0002] Domestic waste disposal has been paid attention by governments at all levels. A new type of waste treatment technology - diversified comprehensive treatment technology will become the most advanced technology of waste treatment. Using this technology to dispose of garbage can meet the target requirements of recycling, harmlessness and reduction. But the disadvantage is that the sorted plastics are not clean, contain water, and have impurities. They must be cleaned, dried, and pelletized before they can be used as raw materials for plastic products. Cleaning and drying involve secondary pollution. From an economic point of view, after cleaning, drying, and granulation, it is further processed into finished products. The production cost is high,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L101/00C08L97/02C08L23/06C08L27/06B29C43/02
Inventor 冯国恒
Owner 冯国恒
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