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Silicon dioxide nanometer aerogel hollow-core glass bead composite fireproof insulation board material and preparation method thereof

A technology of nano-airgel and fire-proof insulation board, which is applied in the direction of heat preservation, fire prevention, and ceramic products. Technical and economic significance, the effect of overcoming the difficulty of construction fixation

Active Publication Date: 2017-04-19
王贵然
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When this material is obviously insufficient, there will be a 15nm gap between the board seams, resulting in the phenomenon of cold and heat bridges, low air suction efficiency, and it is difficult to maintain the vacuum degree for a long time. It is not suitable for building external wall insulation.
In the process of use, it is easy to be broken, leak air, and cause bag swelling. The product specification is 600mm*400mm, and large-size plates cannot be produced. Due to backward testing equipment, its thermal conductivity cannot withstand testing.
However, the production cost of using better airgel as the core material is high, and it is very difficult to promote

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The preferred upper and lower inorganic fiber layers are cement fiber-based felt cloth.

[0034] A silica nano-airgel hollow glass bead composite fireproof insulation board material, comprising the following components by weight:

[0035] Modified silica sol emulsion 100g, pure water 20g, special nanomaterial dispersant 2g, water-repellent potassium methyl silicate 5g, micro-foaming agent sodium lauryl sulfate 10g, carbon nanotube 10g, SiO 2 Airgel 30g, hollow glass microspheres 100g, acicular wollastonite powder 5g, flake mica powder 5g, organic ester curing agent 5g.

[0036] Its preparation method comprises the following steps:

[0037] First, pure water, modified silica sol emulsion, special nanomaterial dispersant, microfoaming agent sodium lauryl sulfate, organosilicon water-repellent potassium methyl silicate, and carbon nanotubes are mixed according to the proportion weight Add it into the twin-shaft forced mixer for pre-mixing for 5 minutes, then add homogene...

Embodiment 2

[0041] A preferred protective layer of inorganic fibers is aluminum foil.

[0042]A silica nano-airgel hollow glass microsphere composite fireproof insulation board material, comprising the following components by weight;

[0043] 50g water-soluble powdered phenolic resin, 50g deionized water, 2g nanomaterial dispersant, 5g hydrogen-containing silicone oil, 10g microfoaming agent sodium α-olefin sulfonate, SiO 2 Airgel 30g, hollow glass microspheres 100g, carbon nanotubes 5g, polyurethane powder 10g, curing agent phenolsulfonic acid 15g.

[0044] Its preparation method comprises the following steps:

[0045] First, deionized water and water-soluble powdered phenolic resin powder are added to the twin-shaft forced mixer according to the proportion weight, and pre-mixed for 5 minutes, and then the special dispersant for nanomaterials is added according to the proportion weight , water repellent, hydrogen-containing silicone oil, micro-foaming agent α-alkenyl sulfonate and stir...

Embodiment 3

[0048] The preferred inorganic fiber protective layer is glass fiber mesh cloth.

[0049] A silica nano-airgel hollow glass bead composite fireproof insulation board material, comprising the following components by weight:

[0050] Melamine (MF) airgel powder 40g, distilled water 60g, nanomaterial dispersant 2g, silicone water repellent powder 2g, micro-foaming agent sodium dodecylbenzene sulfonate 10g, SiO 2 Airgel powder 30g, hollow glass microspheres 100g, carbon nanotubes 5g, polystyrene foam powder 10g, curing agent formic acid 10g.

[0051] Its preparation method comprises the following steps:

[0052] First, add distilled water, special dispersant for nanomaterials, silicone water repellent powder, and foaming agent sodium dodecylbenzenesulfonate into the twin-shaft forced mixer according to the stated ratio, and start the mixer to disperse them. Mix for 5 minutes, then add the melamine (MF) airgel powder of the proportioning weight, disperse, mix and stir for 5 minut...

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Abstract

The invention relates to the technical field of insulation building materials and particularly discloses a silicon dioxide nanometer aerogel hollow-core glass bead composite fireproof insulation board material and a preparation method thereof. The silicon dioxide nanometer aerogel hollow-core glass bead composite fireproof insulation board material is characterized by comprising an upper inorganic fiber layer and a lower inorganic fiber layer. A composite insulation sandwich layer is bonded between the upper inorganic fiber layer and the lower inorganic fiber layer and is formed by mixing modified silica sol emulsion, melamine aerogel powder or water-soluble powder phenolic resin, a dispersant, a water repellent, silicon dioxide nanometer aerogel, hollow-core glass beads, a carbon nano tube, wollastonite powder, mica powder, a fine foamer, a curing agent and a hydrosolvent according to a certain weight ratio. According to the silicon dioxide nanometer aerogel hollow-core glass bead composite fireproof insulation board material and the preparation method thereof, innovative composite technology and fine foaming technology are adopted, high-tech space thermal insulation materials are changed for industrial and civil use, and the fireproof insulation board material is prepared and becomes an important way for technological development of fireproof insulation materials in the future.

Description

[0001] (1) Technical field [0002] The invention relates to the technical field of thermal insulation building materials, in particular to a silica nano-airgel hollow glass bead composite fireproof thermal insulation board material and a preparation method thereof. [0003] (2) Background technology [0004] At present, building energy-saving insulation materials are divided into two categories: organic insulation materials and inorganic insulation materials. Organic types mainly include polystyrene foam (EPS), polyurethane (PU), phenolic resin (PF), etc.; inorganic types mainly include aluminum silicate fiber, silicate fiber, foamed concrete, and emerging airgel glass Fiber felts, aluminum foil, rock wool, perlite, and composite vacuum insulation panels all have inevitable defects during use. [0005] The advantages of organic thermal insulation materials are low thermal conductivity and good thermal insulation effect, but the registration of fire prevention and combustion i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/80E04B1/94C04B28/24C04B38/10C04B111/28C04B111/40
CPCC04B28/24C04B38/10C04B2111/28C04B2111/40E04B1/80E04B1/942C04B2103/408C04B24/40C04B24/16C04B14/026C04B14/062C04B14/22C04B22/08C04B14/20C04B24/00C04B24/282C04B24/2676Y02A30/24Y02B80/10
Inventor 王贵然
Owner 王贵然
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