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Method for preparing adhesive from waste polystyrene foam plastic

A waste polystyrene, waste polystyrene technology, applied in the direction of hydrocarbon copolymer adhesives, adhesive types, rosin adhesives, etc., can solve the damage to the ecological environment, complex production process, difficult to promote and apply problems, to achieve the effect of less investment, full utilization of resources and energy saving

Inactive Publication Date: 2015-02-11
SHAANXI HUALU CHEM ENVIRONMENTAL PROTECTION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Polystyrene foam FPS is light in weight, 0.01-0.05gcm 3 , non-toxic, low water absorption, acid and alkali resistance, weather resistance, heat insulation, soundproof, shockproof, easy to form and widely used in instrumentation, industrial products, vulnerable building materials, food packaging, etc., the global annual consumption reaches millions tons, but due to the light weight and large volume of this kind of material, it will not degrade under natural conditions for one or two hundred years, causing serious white pollution and destroying the ecological environment
At present, its substitutes have not been widely used due to factors such as complex production process and high cost. Recycling and reusing FPS waste is still the method that countries call for and research the most.
It mainly includes melt extrusion method, thermal decomposition method, and solvent recovery method. Among them, the solvent method can directly recycle polystyrene plastic PS, and can also be modified and processed to obtain products such as coatings. Currently, the solvent method used to recycle FPS is poisonous. (xylene, chlorobenzene, halogenated hydrocarbons, etc.) or expensive (ester vegetable oils, etc.), which are difficult to popularize and apply. It has become a popular product to directly process and modify waste FPS with cheap and low-toxic solvents. Hot Topics of Concern

Method used

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  • Method for preparing adhesive from waste polystyrene foam plastic

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] According to the following mass content %, it is PS: 34%, SBS: 5.6%, commercially available petroleum cracking by-products: 50%, ethyl acetate: 5%, rosin: 1.1%, dibutyl phthalate: 1.7%, Sodium dodecylbenzenesulfonate: 1.3%, OP-10: 1.3% prepare each raw material.

[0017] Then descale and crush the waste polystyrene foam and place it in a container, add the selected commercial petroleum cracking by-product mixture at room temperature, fully dissolve and stir evenly; at the same time, heat the ethyl acetate water bath to about 40°C , slowly add SBS, stir rapidly until the SBS is completely dissolved, and cool to room temperature.

[0018] Mix the solution of waste polystyrene foam with the solution of SBS, stir well, add rosin, stir fully until completely dissolved, then add emulsifier sodium dodecylbenzene sulfonate, OP-10 and The plasticizer dibutyl phthalate is mixed and stirred evenly to obtain the adhesive.

Embodiment 2

[0019] Embodiment two: performance test experiment

[0020] According to the performance test of the modified adhesive prepared according to the optimal process requirements of the present invention, and compared with the commercially available adhesive, the comparison results are shown in Table-1.

[0021] Table-1 Comparison Results

[0022]

[0023] The experimental results show that the prepared adhesive has excellent performance and is suitable for bonding wood, paper, fiber and other products. It has good bonding strength and can replace neoprene for wood edge sealing, and can also be mixed with certain A small amount of cement can be used instead of strong floor glue for pasting decorative materials such as parquet floors, ceramic tiles, and mosaics.

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Abstract

The invention relates to a method for preparing an adhesive from waste polystyrene foam plastic, belonging to the field of waste reutilization methods. The method comprises the following steps: descaling the waste polystyrene foam plastic, pulverizing, putting in a container, adding a commercially available petroleum cracking coproduct mixture at normal temperature, sufficiently dissolving and stirring uniformly; meanwhile, heating ethyl acetate in a water bath to 40 DEG C or so, slowly adding SBS (styrene-butadiene-styrene), quickly stirring until all the SBS is dissolved, and cooling to room temperature; and mixing the waste polystyrene foam plastic solution and SBS solution, sufficiently stirring uniformly, adding rosin, sufficiently stirring until the rosin is completely dissolved, and proportionally and sequentially adding an emulsifier and a plasticizer to obtain the adhesive. The adhesive has the advantages of favorable properties, energy saving, low investment and low cost, eliminates white pollution, fully utilizes the resources, and achieves the goals of optimizing the resource utilization and minimizing the environmental pollution.

Description

technical field [0001] The invention relates to a method for preparing an adhesive by using waste polystyrene foam plastics, and belongs to the field of waste recycling methods. Background technique [0002] Polystyrene foam FPS is light in weight, 0.01-0.05gcm 3 , non-toxic, low water absorption, acid and alkali resistance, weather resistance, heat insulation, soundproof, shockproof, easy to form and widely used in instrumentation, industrial products, vulnerable building materials, food packaging, etc., the global annual consumption reaches millions Tons, but due to the light weight and large volume of this kind of material, it will not degrade under natural conditions for one or two hundred years, causing serious white pollution and destroying the ecological environment. At present, its substitutes have not been widely used due to factors such as complex production process and high cost. Recycling and reusing FPS waste is still the method called and studied most by vario...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J125/06C09J153/02C09J193/04C09J11/06
Inventor 陆强
Owner SHAANXI HUALU CHEM ENVIRONMENTAL PROTECTION
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