Air-entraining thermal insulation board and its producing method and special forming device

A molding device and insulation board technology, applied in insulation, building components, layered products, etc., can solve the problems of low thermal resistance, low compressive strength, complex production process, etc., and achieve good heat insulation performance and no noise pollution , the effect of good social benefits

Inactive Publication Date: 2003-11-26
王凤蕊
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims at the disadvantages of low compressive strength, low thermal resistance and complex production process of the existing insulation board, and provides an air-entrapped insulation board and its manufacturing method and special forming device

Method used

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  • Air-entraining thermal insulation board and its producing method and special forming device
  • Air-entraining thermal insulation board and its producing method and special forming device
  • Air-entraining thermal insulation board and its producing method and special forming device

Examples

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Effect test

example 1

[0033] Example 1: Proportioning without fly ash

[0034] 325 Ordinary Portland cement 190kg; bulk density is 80kg / m 3 Perlite 126kg, water 200kg, 107 glue 10kg, the ratio of the cumulative length of the closed air section horizontal projection to the board width is 60%, the ratio of air volume to the volume of the whole board is 26%, and the dry bulk density of the finished product is 316kg / m 3 , The thermal conductivity is 0.083W / (m·k), and the compressive strength is 0.9MPa.

example 2

[0035] Example 2: Proportioning without fly ash

[0036] 325 Ordinary Portland cement 150kg; bulk density is 80kg / m 3 Perlite 126kg, water 165kg, 107 glue 10kg, the ratio of the cumulative length of the closed air section horizontal projection to the board width is 80%, the ratio of the air volume to the whole board volume is 34%, and the dry bulk density of the finished product is 276kg / m 3 , The thermal conductivity is 0.075W / (m·k), and the compressive strength is 0.6MPa.

example 3

[0037]Example 3: Contain a certain proportion of fly ash

[0038] 325 Ordinary Portland cement 150kg, fly ash 40kg, bulk density 80kg / m 3 Perlite 126kg, water 170kg, 107 glue 10kg, the ratio of the cumulative length of the closed air section horizontal projection to the board width is 80%, the ratio of the air volume to the whole board volume is 34%, and the finished product dry bulk density is 316kg / m 3 , The thermal conductivity is 0.083W / (m·k), and the compressive strength is 0.83MPa.

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Abstract

The air-entraining thermal insulation board is produced with cement, flyash, pearlite or foamed bulk material, and water in certain proportion through mixing and other steps. The air-entraining thermal insulation board has air closing cavities in the diameter or equivalent diameter of 10-150 mm, the continuous length of 30-1000 mm, the ratio between the transverse projection length and the boardwidth of 50-75 % and volume accounting for 25-50 % of total board volume. The air-entraining thermal insulation board has light weight, high strength, and high thermal insulating effect. The production process has less steps, no any chemical foaming agent added and no pollutant and noise produced.

Description

Technical field [0001] The invention belongs to the field of building insulation materials, and particularly relates to an air-entrained insulation board, a manufacturing method thereof, and a special molding device. Background technique [0002] Building energy efficiency is an important part of energy efficiency work. There are many building insulation materials currently used. For example, commonly used roof insulation materials include cement perlite insulation board, aerated concrete block, asphalt perlite insulation board, polystyrene foam board and cement polystyrene insulation board, etc.; commonly used wall insulation boards include paper-faced aerated gypsum Insulation board and gypsum-cement high-efficiency insulation board, etc. [0003] At present, there are two ways to use air to keep warm: one is the microporous method and the other is the air interlayer mode. Microcellular insulation usually adopts foaming agent foaming, which is a chemical foaming method. The ins...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B3/30C04B28/04E04B1/76E04B1/78E04B1/80
Inventor 王凤蕊尤英徐德
Owner 王凤蕊
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