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Fly-ash fiber outer wall heat-insulation board and preparation method thereof

A technology of fly ash fiber, thermal insulation, applied in the field of fire-proof thermal insulation panels for building exterior walls, can solve the problems of failing to meet A-level requirements, restrictions on popularization and application, and easy combustion, etc., to reduce the overall weight, Wide range of sources of raw materials and the effect of preventing fire accidents

Inactive Publication Date: 2012-12-19
SHANGHAI HUAMING HI TECH GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in practical use, although this type of board is used as an external wall insulation material with light weight and good thermal insulation performance, it also has many defects: such as poor fire resistance and flame retardancy, which cannot meet the requirements of Class A. When It is easy to burn when it encounters an open flame, and it will produce toxic and harmful gases after burning, which is more harmful
Although this kind of fireproof insulation board has better fireproof insulation effect, its popularization and application are greatly restricted due to high price or high volume density.

Method used

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  • Fly-ash fiber outer wall heat-insulation board and preparation method thereof
  • Fly-ash fiber outer wall heat-insulation board and preparation method thereof
  • Fly-ash fiber outer wall heat-insulation board and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043]

[0044] Among them: acrylic resin emulsion, that is, the amount of pure acrylic emulsion, based on the dry basis, that is, the amount of acrylic resin after deducting the water therein;

[0045] Aluminum phosphate, pure acrylic emulsion with a solid content of 50wt% and calcium stearate are prepared into a mixed sizing agent slurry with a mass concentration of 30wt% for subsequent use;

[0046] Take the fly ash fiber and put it into the carding machine for carding and bulking treatment, so that the fly ash fiber becomes bulky and orderly. During the carding and bulking process, the mixed sizing agent slurry is sprayed, and then pressed into a wet billet of fly ash fiber external wall heat insulation board with a pressure of 0.5 MPa by using mechanical pressure equipment;

[0047] Heat the wet billet of the fly ash fiber exterior wall thermal insulation board to 110°C and dry it, and then cut it into shape according to the design specifications to obtain the fly ash fi...

Embodiment 2

[0050] The formula consists of:

[0051]

[0052] Take aluminum phosphate, styrene-acrylic emulsion with a solid content of 45wt%, water-based paraffin emulsion with a solid content of 40wt%, and calcium stearate respectively according to the above-mentioned formula ratio and place them in the reactor, add water to make the mass concentration of the solids 23wt%, and heat Stir at 70°C to disperse evenly, and prepare a mixed sizing agent slurry for later use.

[0053] Take the fly ash fiber and put it into the carding machine for carding and bulking treatment, so that the fly ash fiber becomes bulky and orderly. During the carding and bulking process, the sizing agent slurry is sprayed according to the formula ratio, and then pressed into a wet billet of fly ash fiber exterior wall thermal insulation board with a pressure of 0.4 MPa using mechanical pressure equipment. Heat the wet blank of the fly ash fiber exterior wall thermal insulation board to 120°C and dry it, and th...

Embodiment 3

[0056] The formula is:

[0057]

[0058] Take water glass with a modulus of 2.0, vinegar-acrylic emulsion with a solid content of 50wt%, and dodecyltrimethylammonium chloride respectively and place them in a reaction kettle, add water to make the total solid mass concentration 16%, stir and disperse evenly, Prepare the mixed sizing agent slurry for later use.

[0059] Take the fly ash fiber and put it into the carding machine for carding and bulking treatment, so that the fly ash fiber becomes bulky and orderly. During the carding and bulking process, spray the mixed sizing agent slurry according to the formula ratio, and then use mechanical pressure equipment to press it into a wet billet of fly ash fiber external wall heat insulation board with a pressure of 0.15MPa. Heat the wet blank of the fly ash fiber exterior wall thermal insulation board to 120°C and dry it, and then cut it into shape according to the design specifications to obtain the fly ash fiber exterior wall...

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Abstract

The invention discloses a fly-ash fiber outer wall heat-insulation board and a preparation method thereof. Weight percentage of each component is as follows: 70-90 wt% of fly-ash fiber, 8-19 wt% of an inorganic binder, 2-5 wt% of an organic binder and 0-6 wt% of an additive. The fly-ash fiber outer wall heat-insulation acoustic board has wide source of raw materials and low cost, has volume density of 200-350 kg / m<3>, heat conductivity coefficient of 0.032-0.044 W / (m.K) and compression strength of 2.0-3.5 MPa, and has no poisonous and harmful materials to human health and environment. The combustion performance of the fly-ash fiber heat-insulation acoustic board reaches to A-grade non-combustible requirements of the ISO 1182-2002 standard. The fly-ash fiber outer wall heat-insulation acoustic board can effectively prevent fire accidents from happening.

Description

technical field [0001] The invention relates to a fire-proof heat-insulating and heat-insulating board for the outer wall of a building, and more specifically relates to a heat-insulating and heat-insulating board for an outer wall of a fly ash fiber and a preparation method thereof. Background technique [0002] With the intensification of the world's energy crisis and the further deterioration of the ecological environment, the contradiction between energy and environmental protection in my country has become more prominent due to the rapid economic development. It has attracted great attention from the industry. With the further standardization of building energy-saving design requirements and the formulation and implementation of relevant building energy-saving regulations by the State Council, people have put forward higher and higher requirements for new building materials and wall insulation systems. Building energy-saving materials have become an important research t...

Claims

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Application Information

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IPC IPC(8): C04B28/26C04B28/34C04B18/08
CPCY02W30/91
Inventor 蔡梦军陈建定王汉斌李鹏马新胜吴秋芳
Owner SHANGHAI HUAMING HI TECH GRP
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