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Extruded plastic thermal insulation thermal insulation board

A thermal insulation board and foaming liquid technology, applied in thermal insulation, building components, etc., can solve the problems of low strength, weak aging resistance, high hygroscopicity, etc., and achieve low bulk density, good compressive strength, and good water absorption Effect

Active Publication Date: 2009-11-25
安徽森普新型材料发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing thermal insulation boards generally have a large volume, and have the disadvantages of high hygroscopicity, low strength, low compression resistance, low density, and weak aging resistance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0008] The components of the extruded thermal insulation board are mixed according to the weight ratio: 180-200 kg of polystyrene, 1-3 kg of 1000 mesh talcum powder, and 0.5-1.5 kg of color masterbatch, and then stir them. Then put the components that have been stirred evenly into the 150 unit of the extruder, and mix them at a temperature of 180°C-220°C. For the first time, inject 3-5 kg ​​of freon by weight for foaming, and at the same time divide it into the 120 unit two The first injection is carried out secondary foaming with 3-5 kg ​​of soda water made of 800 kg of water and 15 kg of sodium carbonate or sodium bicarbonate. (The cost is saved by secondary foaming) and then extruded, positive pressure traction molding, cutting, and packaging the finished product.

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Abstract

The invention discloses an extruded plastic thermal insulation thermal insulation board, which contains the components by weight parts of: polystyrene 180-200kg, Freon 3-5kg, 1000mu talc 1-3kg, foaming liquid 3-5kg, color masterbatch 0.5-1.5kg. The secondary foaming technology in the invention causes the plate to have lower unit weight, excellent non-absorbency, and better compressive strength; achieves technology advantage on environmental protection aspect, and can save cost greatly.

Description

technical field [0001] The invention relates to a thermal insulation board, in particular to an extruded thermal insulation board. Background technique [0002] In house construction, especially in alpine regions, a large amount of heat in the house is dissipated through the roof and walls. Therefore, it is necessary to pave insulation boards on the roof and outer walls to play the role of thermal insulation and energy saving. There are usually three types of existing insulation boards: the granular insulation material and cement are mixed to make slurry, and then poured into specific parts of the building to form an insulation layer; the second type is to make insulation boards with a certain gelling agent and granular insulation materials. It is paved on the roof and walls to form an insulation layer; the third type is to produce insulation boards by extrusion. Existing insulation boards generally have a large volume, and have the disadvantages of high hygroscopicity, lo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/80C08L25/06C08K3/34C08J9/08C08J9/04
Inventor 张家如傅曹辉
Owner 安徽森普新型材料发展有限公司
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