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Method of preparing polystyrene extrusion molding cystosepiment by polystyrene recovery material

A polystyrene and foamed polystyrene technology, applied in the field of producing polystyrene extruded foam boards, can solve problems such as low product density and performance

Inactive Publication Date: 2007-02-07
南京法宁格节能科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a method for producing polystyrene extruded foam boards by utilizing foamed polystyrene reclaimed materials for the above-mentioned deficiencies. Due to the use of carbon dioxide combined foaming agent as a low boiling point foaming agent, polystyrene foam can be recycled The products produced by using raw materials have lower density and more stable performance, and at the same time solve some environmental protection problems in the world

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Production of extruded polystyrene foam boards from styrofoam recycled materials:

[0019] 1. Classify the recycled foamed polystyrene: sort the recycled foamed polystyrene by color to remove impurities;

[0020] 2. Grind the above-mentioned recycled foamed polystyrene materials, and then granulate them through an extrusion granulator. During the granulation process, filter them through a filter to further remove impurities. 160°C;

[0021] 3. Mix and melt 100Kg of the above foamed polystyrene recycled material plastic pellets through a plastic extruder and inject 4Kg of carbon dioxide combined foaming agent. The weight ratio of foamed polystyrene recycled plastic pellets and carbon dioxide combined foaming agent is 100:4 After injecting the foaming agent, it is further mixed and cooled. The mixed cooling temperature is 100°C. It is cooled by a water jacket, quantitatively extruded through a mold, cooled, and shaped to obtain a polystyrene extruded foam board, also kno...

Embodiment 2

[0023] Production of extruded polystyrene foam boards from styrofoam recycled materials:

[0024] 1. Classify the recycled foamed polystyrene: sort the recycled foamed polystyrene by color to remove impurities;

[0025] 2. Grind the above-mentioned recycled foamed polystyrene materials, and then granulate them through an extrusion granulator. During the granulation process, filter them through a filter to further remove impurities. 200°C;

[0026] 3. Put 100Kg of the above-mentioned styrofoam reclaimed plastic granules into a blender, add 10Kg of additives, stir and mix, the weight ratio of styrofoam recycled plastic granules to additives is 100:10, and the auxiliary agent adopts nucleating agent, Flame retardant, mixture in masterbatch. The weight ratio of the nucleating agent in the additive is 1, and the mixture of talcum powder and calcium carbonate is 1Kg; the weight ratio of the color masterbatch is 2, and the pigment + polystyrene matrix is ​​2Kg; Alkane 7Kg;

[002...

Embodiment 3

[0029] Production of extruded polystyrene foam boards from styrofoam recycled materials:

[0030] 1. Classify the recycled foamed polystyrene: sort the recycled foamed polystyrene by color to remove impurities;

[0031] 2. Grind the above-mentioned recycled foamed polystyrene materials, and then granulate them through an extrusion granulator. During the granulation process, filter them through a filter to further remove impurities. 180°C;

[0032] 3. Put 100Kg of the above-mentioned styrofoam reclaimed plastic pellets into a mixer, add 5Kg of additives, and stir and mix. The weight ratio of styrofoam recycled plastic pellets to additives is 100:5, and the weight of the nucleating agent in the additives is 100:5. The ratio is 0.5, calcium carbonate is 0.5Kg, the masterbatch weight ratio is 1, pigment + polystyrene matrix is ​​1Kg, the flame retardant weight ratio is 3.5, and hexabromododecane is 3.5Kg;

[0033] 4. Mix and melt the styrofoam reclaimed material plastic granules...

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PUM

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Abstract

The invention relates to a method for using foam polyphenylacetylene to produce polyphenylacetylene extruded plastic foam plate, which comprises: (1), classifying the foam polyphenylacetylene material via colors; (2) breaking said material, and making particle in the particle maker, while the temperature is 160-200Deg. C; (3), collecting the particles, adding agent, mixing, while the ratio between the particles and the agent is 100:0-10; (4) mixing and fusing said particles in plastic extruder, adding carbon dioxide foaming agent, to foam, while the mass ratio between the particle and the foaming agent is 100:4-15, to be extruded from mould, to obtain the foam plastic plate.

Description

technical field [0001] The invention relates to a process for producing polystyrene extruded foam boards (extruded plastic insulation boards) by utilizing recycled expandable polystyrene materials. Background technique [0002] As we all know, thermoplastics such as polyethylene, polystyrene, and polypropylene are used in a wide range of applications. For example: styrene polymer foam boards are widely used as building insulation materials and home decoration materials, and polyethylene and polypropylene foams are widely used as packaging materials. Thermoplastics such as polystyrene and polyethylene are injected with a low-boiling foaming agent and then extruded and foamed to form fine cell pores and a relatively stable and fully enclosed foam board. In addition to being used in the field of construction, civil engineering and cold storage insulation, foam boards are also used in home decoration and product packaging such as decoration and decorative panels. Over a long p...

Claims

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Application Information

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IPC IPC(8): B29C47/14B29C47/92B29B9/00C08J3/20C08K13/02B29K25/00B29K105/06B29C48/305B29C48/92
CPCB29C47/92Y02P70/10
Inventor 郭鑫齐
Owner 南京法宁格节能科技股份有限公司
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