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Extruded sheet and preparation method thereof

A technology of extruded plastic board and cell, which is applied in the field of composite materials, can solve the problem that the thermal insulation effect of modified extruded plastic board cannot be satisfied, and achieve the effect of improving thermal insulation effect.

Active Publication Date: 2016-06-29
北京奥克森节能环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The modified extruded board prepared by this composition and method has the problem that the thermal insulation effect cannot meet the needs of specific occasions to a certain extent.

Method used

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  • Extruded sheet and preparation method thereof
  • Extruded sheet and preparation method thereof
  • Extruded sheet and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] (1) Add 200g of polystyrene particles, 14.3g of graphite, 12.7g of flame retardant hexabromocyclododecane and additives into the mixing bin for mixing, wherein the additives include 1.4g of aluminum hydroxide and zinc stearate 0.6g, calcium stearate 1.0g, form the first mixture after mixing for 15 minutes; then after the twin-screw equipment is heated to 185 ° C, the first mixture is injected into the twin-screw equipment for stirring, and the foam is added during the stirring process. 20g of foaming agent, 11.6g of ethanol and 10g of ammonium bicarbonate were mixed, heated and stirred for 20 minutes to form the second mixture;

[0049] (2) The second compound is transported to the extrusion port, and the second compound is statically mixed and then dynamically mixed during the transmission process, so that the second compound is mixed more evenly;

[0050] (3) Add the second mixture into the extruder to extrude at 75° C. and form the extruded board of the present inven...

Embodiment 2

[0053] (1) Add 220g of polystyrene particles, 19.0g of graphite, 11.0g of flame retardant hexabromocyclododecane, and additives into the mixing bin for mixing, wherein the additives include 1.2g of aluminum hydroxide, stearic acid 0.8g of zinc and 1.1g of calcium stearate were mixed for 20 minutes to form the first mixture; after the twin-screw equipment was heated to 175°C, the first mixture was injected into the twin-screw equipment for stirring, adding 13.0g of ethanol, blowing agent 18g and 10g of ammonium bicarbonate were mixed and heated and stirred for 20 minutes to form the second mixture;

[0054] (2) The second compound is transported to the extrusion port, and the second compound is statically mixed and then dynamically mixed during the transmission process, so that the second compound is mixed more evenly;

[0055] (3) Add the second mixture into the extruder to extrude at 75° C. and form the extruded board of the present invention.

[0056] The surface SEM observ...

Embodiment 3

[0058] (1) Add 180g of polystyrene particles, 15.0g of graphite, 8.0g of flame retardant hexabromocyclododecane, and additives into the mixing bin for mixing, wherein the additives include 0.8g of aluminum hydroxide, stearic acid 0.7g of zinc and 0.8g of calcium stearate were mixed for 20 minutes to form the first mixture; after the twin-screw equipment was heated to 180°C, the first mixture was injected into the twin-screw equipment for stirring, adding 10.0g of ethanol, blowing agent 12g and 10g of ammonium bicarbonate were mixed and heated and stirred for 20 minutes to form the second mixture;

[0059] (2) The second compound is transported to the extrusion port, and the second compound is statically mixed and then dynamically mixed during the transmission process, so that the second compound is mixed more evenly;

[0060] (3) Add the second mixture into the extruder to extrude at 75° C. and form the extruded board of the present invention.

[0061] The surface SEM observa...

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Abstract

The invention relates to an extruded sheet and a preparation method thereof, in particular to an extruded sheet with a foam structure and a preparation method thereof, and belongs to the technical field of composites. The extruded plate is prepared from, by weight, 72-94% of polystyrene, 2-16% of graphite and 2-16% of fire retardant. The extruded plate is characterized in that foam is distributed on the surface of the extruded plate, the average diameter range of the foam is 80-200 micrometers, and 5-25 pieces of foam exist in the area of 400 micrometers * 400 micrometers. The extruded plate with the foam structure has a good surface microstructure, and the heat preservation effect of the extruded plate can be further improved.

Description

technical field [0001] The invention relates to an extruded plastic board and a preparation method thereof, in particular to an extruded plastic board with a pore structure and a preparation method thereof, belonging to the technical field of composite materials. Background technique [0002] With the development of economy and society, saving energy and protecting the environment has become the consensus of mankind, and reducing energy consumption has become the goal of human joint efforts. In order to save energy more effectively, energy-saving buildings have become an important topic. Improving the thermal insulation performance of buildings can have a significant effect on the energy consumption caused by air conditioning. Demand has also increased. [0003] In heat insulation materials, it can be roughly divided into two categories, one is organic polymer materials, and the other is inorganic materials. Well, it has been increasingly widely used in the building materi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L25/06C08K13/02C08K3/04C08K5/02C08K3/22C08K5/098C08K5/05C08J9/10C08J9/08
CPCC08J9/0019C08J9/0023C08J9/0066C08J9/08C08J9/10C08J9/102C08J9/103C08J2203/04C08J2325/06C08K3/04C08K3/22C08K5/02C08K5/05C08K5/098C08K13/02C08K2003/2227C08K2201/014C08L2201/02C08L25/06
Inventor 赵宏宇冯宝均
Owner 北京奥克森节能环保科技有限公司
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