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Composite rock wool reinforcing plate and preparation method thereof

A technology of reinforcing board and rock wool board, which is applied in ceramic products, adhesive types, starch adhesives, etc., can solve the problem that the K value of the heat transfer coefficient of the external wall of rock wool board cannot meet the requirements of ultra-low energy consumption buildings, etc. The effect of eliminating harmful chemicals and lowering the K value

Active Publication Date: 2021-03-26
安徽鼎元新材料有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The existing heat transfer coefficient K value of the external wall of rock wool board cannot meet the requirements of ultra-low energy consumption buildings

Method used

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  • Composite rock wool reinforcing plate and preparation method thereof
  • Composite rock wool reinforcing plate and preparation method thereof
  • Composite rock wool reinforcing plate and preparation method thereof

Examples

Experimental program
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preparation example Construction

[0048] A method for preparing a composite rock wool reinforced board. The rock wool board 1 includes the following parts by mass: 20-45 parts of basalt sand, 20-45 parts of dolomite sand, 5-10 parts of binder, and 3-45 parts of dust-proof oil 8 parts, 5-12 parts of water-repellent agent, 8-12 parts of rigid polyurethane foam, 10-20 parts of polymer bonding mortar, 8-15 parts of thermal insulation mortar, 4-12 parts of polymer plastering anti-cracking mortar, specific production steps as follows:

[0049] (1) Take 20 to 45 parts of basalt sand and 20 to 45 parts of dolomite sand, melt them at a high temperature above 1450°C, and centrifuge them into fibers at high speed with a four-axis centrifuge, and cool them down to below 200°C for later use;

[0050] (2) Take 5-10 parts of binder, 3-8 parts of dust-proof oil, and 5-12 parts of water-repellent agent, spray them into the centrifugally cooled fibers and stir evenly;

[0051] (3) Take 10-15 parts of rigid polyurethane foam, 1...

Embodiment 1

[0057] Example 1 Preparation method of composite rock wool reinforced board

[0058] (1) Take 40 parts of basalt sand and 20 parts of dolomite sand, melt them at a high temperature above 1450℃, and centrifuge them into fibers at high speed with a four-axis centrifuge at a speed of 1500r / min. The centrifugation time depends on the total amount of basalt sand and dolomite sand. Adjust the quality, specifically 100kg / 30min, and cool to below 200°C after centrifugation for later use;

[0059] (2) Take 8 parts of binder, 5 parts of dustproof oil, and 5 parts of water repellent, spray them into the fibers after centrifugal cooling and stir them evenly;

[0060] (3) Take 10 parts of rigid foam polyurethane, 15 parts of polymer bonding mortar, 10 parts of thermal insulation mortar, and 8 parts of polymer plastering anti-cracking mortar, put them into a mixer and stir evenly for later use;

[0061] (4) Add the mortar mixture in step (3) into the fiber mixture in step (2) in batches an...

Embodiment 2

[0064] Embodiment 2 Adhesive preparation steps

[0065] (1) Take 20 parts of seaweed slurry, add double 4% sodium hydroxide solution to soak for 2.5 hours, and heat to 100°C, stir while heating, and adjust the pH to neutral with water after 2.5 hours;

[0066] (2) Take 60 parts of cassava flour, add an equal amount of 35% sodium hydroxide solution and 30% hydrogen peroxide solution to it, heat to 65°C, and react for 1.5 hours. After the reaction, the cassava flour is prepared with water to make the pH neutral;

[0067] (3) Put the treated seaweed slurry and cassava flour into a blender, add 20 parts of water, heat while stirring, heat to 65°C and keep it for 3 hours, adjust the pH to 6.8±0.1 with acetic acid, and filter to obtain Clear glue.

[0068] The experimental results show that when the mass ratio of cassava flour to seaweed slurry is 3, the viscosity is the largest.

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Abstract

The invention discloses a composite rock wool reinforcing plate and a preparation method thereof. The composite rock wool reinforcing plate comprises a rock wool plate, a heat insulation layer is embedded in the rock wool plate, reinforcing steel bars are fixed to the contact face of the rock wool plate and a wall, each reinforcing steel bar comprises an inner shaft and an outer pipe, the outer pipes sleeve the corresponding inner shafts, adhesive bags are arranged in the inner shafts, puncture protrusions and through holes are formed in the inner walls of the outer pipes, and the puncture protrusions correspond to the adhesive bags. According to the composite rock wool reinforcing plate and the preparation method thereof, the heat insulation layer is embedded in the existing rock wool plate, so that the use amount of production raw materials is reduced, and meanwhile, the heat insulation performance is improved; and in addition, rigid foam polyurethane and rock wool are compounded together, and experiments show that the rock wool material added with the rigid foam polyurethane can greatly reduce the K value of the heat transfer coefficient of the outer wall, and meets the technical indexes of ultralow-energy-consumption buildings.

Description

technical field [0001] The invention relates to a rock wool board, in particular to a composite rock wool reinforced board and a preparation method thereof, belonging to the application field of rock wool boards. Background technique [0002] The rock wool composite board adds cement mortar to the surface of the rock wool board, which strengthens the hardness of the rock wool board, directly saves the process of plastering the wall during construction, and shortens the installation period of the rock wool board by 70% %, rock wool board is made of basalt and other natural ores as the main raw materials. The rock wool board is melted into fibers at high temperature, added with an appropriate amount of binder, and solidified. [0003] Under the social environment of low energy and environmental protection, ultra-low energy consumption buildings have become a rookie in the construction industry. Ultra-low energy consumption buildings refer to adapting to climate characteristics...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/80C04B28/00C04B38/08C03C13/06C03C25/465C09J103/02C09J11/04C04B16/08
CPCE04B1/80C04B28/00C03C13/06C03C25/465C09J103/02C09J11/04C04B14/4656C04B16/082C04B14/06C04B2103/0045C04B24/383C04B16/0633C08K7/26
Inventor 李辰峰范晓雪李开梅
Owner 安徽鼎元新材料有限公司
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