Expanded perlite-polyurethane composite insulating board and manufacturing technique thereof

A technology of expanded perlite and composite thermal insulation, which is applied in the field of building energy conservation, can solve the problems of affecting the service life of the thermal insulation system, affecting the indoor living environment, and low water vapor transmission rate, and is conducive to industrialization and application. The effect of physical and mechanical properties

Inactive Publication Date: 2008-03-12
宁波荣山建筑节能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the external thermal insulation system of the external wall, the external thermal insulation system of the external wall with thin plastering of polystyrene board accounts for a large proportion, and the TT technique is relatively perfect, but because the water vapor transmission rate

Method used

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  • Expanded perlite-polyurethane composite insulating board and manufacturing technique thereof
  • Expanded perlite-polyurethane composite insulating board and manufacturing technique thereof
  • Expanded perlite-polyurethane composite insulating board and manufacturing technique thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Ordinary expanded perlite particles with a particle size of 2 mm are sent into the rotating drum, and polyurethane adhesive is sprayed into the rotating drum at the same time, the mass of polyurethane adhesive: the mass of expanded perlite = 0.8:1. The expanded perlite is continuously stirred in the drum to fully contact with the mist of polyurethane adhesive, discharged from the discharge port, put into a mold of a certain size, vibrated and flattened, hardened at 60°C for 4 hours, the mold frame is removed, and the cutting machine immediately The green body is cut to obtain the expanded perlite-polyurethane composite insulation board.

[0021] The performance comparison of the expanded perlite-polyurethane composite insulation board with polystyrene foam insulation board and mortar insulation materials is as follows:

[0022]

[0023] It can be seen from the above table that although the thermal conductivity of the new expanded perlite-polyurethane composite insula...

Embodiment 2

[0026] Ordinary expanded perlite with a certain particle size distribution is put into a stirring tank, and polyurethane adhesive is sprayed while stirring, the quality of polyurethane adhesive: the quality of expanded perlite = 1.5:1. The expanded perlite is continuously stirred in the mixing tank and fully contacted with the polyurethane adhesive mist. After mixing evenly, it is put into a mold of a certain size, shaken and flattened, hardened at 90°C for 2 hours, the mold frame is removed, and the cutting machine is ready for blanking. The body is cut, and the expanded perlite-polyurethane composite insulation board is obtained.

[0027] The performance comparison of the expanded perlite-polyurethane composite insulation board with polystyrene foam insulation board and mortar insulation materials is as follows:

[0028]

[0029] This method is a batch production process. The thermal conductivity of the expanded perlite-polyurethane composite insulation board produced by...

Embodiment 3

[0032] The ordinary expanded perlite with a particle size of 8 mm is sent into the rotating drum, and the foamed polyurethane adhesive is sprayed into the drum at the same time, the mass of the foamed polyurethane adhesive: the mass of the expanded perlite = 1:1. The expanded perlite is continuously stirred in the drum to fully contact with the foamed polyurethane adhesive, discharged from the discharge port, put into a mold of a certain size, vibrated and flattened, hardened at 40°C for 20 hours, the mold frame is removed, and the cutting machine That is, the green body is cut, and the expanded perlite-polyurethane composite insulation board is obtained.

[0033] The performance comparison of the expanded perlite-polyurethane composite insulation board with polystyrene foam insulation board and mortar insulation materials is as follows:

[0034]

[0035] The thermal conductivity of the expanded perlite-polyurethane composite insulation board produced by this method is simi...

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PUM

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Abstract

The present invention discloses a heat preservation plate compounded by expanded perlite and polyurethane and the manufacturing process. The present invention is a plate using the expanded perlite as aggregate, and the polyurethane as glue material. The manufacturing process is that: the expanded perlite is sent to a rotating rotary drum, and at the same time, the polyurethane is ejected into the rotary drum according to the weight ratio; the expanded perlite in the rotary drum is being mixed and contacted with the polyurethane flog enough and continually; and then the mixture is taken out from a material-out mouth and then is to be put in a mould with some size for shaking and pressed. After being hardened in the stated temperature, the mixture is to be cut and then the heat preservation plate compounded by expanded perlite and polyurethane will be obtained. The present invention solves the shortcomings that the mixing for the mortar heat preservation products is not even and the quality is difficult to be controlled and so on. The heat preservation plate compounded by expanded perlite and polyurethane is with much lower density, much lower heat conductivity coefficient, much better heat preservation effect and much better water permeability, which overcomes the shortcomings in the foam polyurethane plate and the extruded plate that the vapor is hard to be permeated. The present invention has the advantages of low cost and convenient construction. The present invention can be manufactured in the industrialized mode and the quality can be controlled effectively.

Description

technical field [0001] The invention relates to the field of building energy conservation, in particular to an expanded perlite-polyurethane composite thermal insulation board and a production process thereof. Background technique [0002] The total energy consumption of buildings in China has been increasing year by year, and its proportion in total energy consumption has risen from 10% in the late 1970s to 27.8% in recent years. The biggest energy consumption point of buildings is heating and air conditioning. It is reported that the energy consumption of heating and air conditioning in my country accounts for 55% of the total energy consumption of buildings. According to reports, my country's urban and rural existing buildings amount to more than 43 billion square meters. Among such a huge number of buildings, the most optimistic estimate is that only about 5% meet the energy-saving building standards; even for new buildings, more than 90% are still high-energy buildings....

Claims

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Application Information

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IPC IPC(8): C04B26/10C04B14/18
CPCC04B26/16
Inventor 王智宇施卫平王小山阮华
Owner 宁波荣山建筑节能科技有限公司
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