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Sealing coating material for roof extruded board

A technology of extruded plastic board and magnesium oxychloride cement, applied in the field of building materials, can solve the problems of non-waterproof, high price, easy cracking, etc., and achieve the effect of preventing cracking, high strength and prolonging service life

Inactive Publication Date: 2017-06-16
山东住工装配建筑有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But it has disadvantages such as high price, not waterproof, easy to crack, fall off, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Proportions are (parts by weight): magnesium chloride 25, magnesium oxide 50, quartz sand 22, magnesium oxychloride cement modifier 0.5, PP fiber 0.2, wood fiber 0.2, hydrophobic agent 0.3, redispersible latex powder 1, polyethylene Alcohol 0.5, wetting and dispersing agent 0.3, water 30.

[0025] Preparation:

[0026] (1) Take each raw material by above-mentioned parts by weight, add other raw materials except magnesium chloride, magnesium oxychloride cement modifier and water into dry powder mixer and stir evenly;

[0027] (2) Mix magnesium chloride and water, and stir evenly, so that there is no precipitation and no floating matter, add magnesium oxychloride cement modifier in proportion, and stir evenly again.

[0028] (3) Send the mixture of steps (1) and (2) into a mortar mixer, and stir evenly to obtain a sealing coating material for a roof extruded board.

[0029] When in use, the above-mentioned seal coating material is pumped into the spraying machine, and t...

Embodiment 2

[0032] Proportion (parts by weight): magnesium chloride 15, magnesium oxide 40, quartz sand 25, magnesium oxychloride cement modifier 0.5, PP fiber 0.2, wood fiber 0.2, hydrophobic agent 0.2, redispersible latex powder 0.8, polyvinyl alcohol 0.3, wetting and dispersing agent 0.3, water 25.

[0033] The preparation and usage methods are the same as in Example 1.

[0034] The performance indicators of the product of the present invention are as follows: 1) the tensile bonding strength with extruded plastic board is 0.35MPa, and the water-resistant tensile bonding strength with extruded plastic board is 0.31MPa, and the stretching after freezing and thawing cycle with extruded plastic board The bonding strength is 0.28MPa; 2) The drying shrinkage value is 0.4mm / m; 3) Water impermeability: no water drops appear on the back for 24 hours; 4) The water absorption rate is 8%; 5) Freeze resistance: 25 freeze-thaw cycles No peeling, cracking, delamination and other damage phenomena; 6)...

Embodiment 3

[0036] Proportion (parts by weight): magnesium chloride 30, magnesium oxide 60, quartz sand 18, magnesium oxychloride cement modifier (magnesite modifier) ​​1, PP fiber 0.5, wood fiber 0.5, hydrophobic agent 0.5, redispersibility Latex powder 1.2, polyvinyl alcohol 0.5, wetting and dispersing agent 0.5, water 35.

[0037] The preparation and usage methods are the same as in Example 1.

[0038] The performance indicators of the product of the present invention are as follows: 1) the tensile bonding strength with extruded plastic board is 0.38MPa, and the water-resistant tensile bonding strength with extruded plastic board is 0.33MPa, and the stretching after freezing and thawing cycle with extruded plastic board The bonding strength is 0.30MPa; 2) The drying shrinkage value is 0.4mm / m; 3) Water impermeability: no water drops appear on the back for 24 hours; 4) The water absorption rate is 6%; 5) Freeze resistance: 25 freeze-thaw cycles No peeling, cracking, delamination and ot...

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Abstract

The invention discloses a sealing coating material for a roof extruded board. It consists of the following components: magnesium chloride, magnesium oxide, quartz sand, magnesium oxychloride cement modifier, PP fiber, wood fiber, hydrophobic agent, redispersible latex powder, polyvinyl alcohol, wetting and dispersing agent and water . The present invention adopts magnesium chloride, magnesium oxide, quartz sand, magnesium oxychloride cement modifier and other material prescriptions, and through rationally designed proportioning, forms a kind of material that has higher strength, stronger water resistance, and the function of inhibiting brine return and deformation (not easy Cracking, falling off) slurry. During the construction of the extruded plastic board on the roof, it is sprayed on the extruded plastic board to solve the fire prevention of the project, delay the aging of the extruded plastic board and achieve weather resistance.

Description

technical field [0001] The invention relates to a sealing coating material for roof extruded plastic boards, belonging to the technical field of building materials. Background technique [0002] Extruded board, that is, continuous extruded XPS (polystyrene) board, which is a board with a continuous and uniform surface and a closed-cell honeycomb structure manufactured by extrusion of polystyrene resin and other additives. It has excellent thermal insulation and compression resistance; at the same time, it also has the characteristics of light weight and high strength, which is convenient for cutting and transportation, and is not easy to be damaged and easy to install, so it is widely used in new roofing systems. [0003] At present, the new roof system uses extruded board as the insulation material and filling material of the roof, which is designed under the new roof tile. During the construction process of the extruded board, it is necessary to use sealing materials (adh...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/32
Inventor 华雷广么传杰张云强韩玉璞冯国华
Owner 山东住工装配建筑有限公司
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