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Nano self-cleaning fiber reinforced cement product and production method for same

A fiber-reinforced cement, production method technology, applied in the field of air purification function, nano-photocatalytic anti-fouling and self-cleaning, can solve the problems of not finally achieving the expected effect, poor waterproof performance and durability, unable to meet the weather resistance of building exterior walls, etc. To achieve the effect of improving the quality of the atmospheric environment and maintaining human safety

Inactive Publication Date: 2012-06-27
NANJING BEILIDA NEW MATERIAL SYST ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, traditional photocatalytic coatings are mainly used for indoor air purification, with poor waterproof performance and durability, and cannot meet the weather resistance requirements of building exterior walls.
For example, in 2007, in order to purify automobile exhaust, Nanjing Third Bridge conducted photocatalytic coating experiments on the concrete pavement of the North Bridge Toll Station. In 2008, the Olympic Gymnasium also used photocatalytic coatings to keep the building surface clean. Evidence that, over time, these attempts did not lead to desired results

Method used

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  • Nano self-cleaning fiber reinforced cement product and production method for same
  • Nano self-cleaning fiber reinforced cement product and production method for same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] 1) Mix 25kg (25%) of cement, 35kg (35%) of sand, 13kg (13%) of glass chips, 1kg (1%) of PVA fiber, 1kg (1%) of PP fiber, and 5kg (5%) of powdered pigment. , dispersible latex powder 5kg (5%), water reducing agent naphthalene sulfonate formaldehyde condensate 0.3kg (0.3%), early strength agent sulfate 0.3kg (0.3%), antifreeze calcium chloride 0.2kg (0.2%) ), mixed siliceous powder waterproofing agent 0.2kg (0.2%), metakaolin 2kg (2%), stone powder 1kg (1%), water 11kg (11%) and mixed evenly to make fiber-reinforced cement decorative surface mortar .

[0065] 2) Use the prepared fiber reinforced cement decorative surface layer mortar to make the fiber reinforced cement decorative surface layer in the mold with decorative effect by spraying method. The thickness of the surface layer is 3mm, and it is cured naturally for 10 minutes.

[0066] 3) Mix 25kg (25%) of cement, 46kg (46%) of sand, 3kg (3%) of alkali-resistant glass fiber, 2kg (2%) of basalt fiber, 5kg (5%) of re...

Embodiment 2

[0074] 1) Mix 46kg (46%) of cement, 15kg (15%) of fine stones, 10kg (10%) of ceramic chips, 2kg (2%) of liquid pigment, and 0.5kg (0.5%) of water reducing agent sulfonated melamine formaldehyde condensate , early strength agent nitrite 0.5kg (0.5%), expansion agent sulfoaluminate 0.5g (0.5%), retarder citric acid 0.5kg (0.5%), fly ash 3kg (3%), silica fume 2kg (2%) and 20kg (20%) of water are mixed evenly to make fiber-reinforced cement decorative surface mortar.

[0075] 2) The prepared fiber reinforced cement decorative surface layer mortar is used to make a fiber reinforced cement decorative surface layer with a thickness of 4mm in a mold with a decorative effect by brushing, and it is naturally cured for 30 minutes.

[0076] 3) Mix cement 50kg (50%), sand 28kg (28%), carbon fiber 1kg (1%), water reducing agent sulfonated melamine formaldehyde condensate 0.2kg (0.2%), early strength agent nitrite 0.3kg (0.3 %), antifreeze potassium carbonate 0.3kg (0.3%), retarder wood c...

Embodiment 3

[0085] 1) Stir 28kg (28%) of cement, 36kg (36%) of sand, 20kg (20%) of metal chips, 1kg (1%) of PU fiber, 1kg (1%) of styrene-acrylic emulsion, and 14kg (14%) of water After uniformity, fiber-reinforced cement decorative surface layer mortar is made.

[0086] 2) The configured fiber reinforced cement decorative surface layer mortar is used to make a decorative surface layer with a thickness of 5mm in a mold with decorative effect by laying vibration method, and it is cured naturally for 60 minutes.

[0087] 3) 30kg (30%) of cement, 52kg (52%) of sand, 2kg (2%) of PVA fiber, 1kg (1%) of polypropylene emulsion, 1kg (1%) of fly ash, and 14kg (14%) of water are as follows: The weight percentage ratio is mixed, and the slurry is made into fiber-reinforced cement structural layer by stirring evenly.

[0088] 4) After the fiber reinforced cement structure layer slurry is configured, it is laid in a mold with a fiber reinforced cement decorative surface layer, and the slurry is scr...

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Abstract

The invention relates to a nano self-cleaning fiber reinforced cement product and a production method for the same, which particularly aim to realize photocatalysis antifouling self-cleaning and air purification functions on a traditional fiber cement product by means of coating. The product is mainly applied to building roofs, building curtain walls, wall decoration, municipal traffic engineering construction and modification works, and comprises a fiber reinforced cement structural layer, a fiber reinforced cement decorative finish layer, a nano isolation layer and a photocatalysis layer, wherein the fiber reinforced cement decorative finish layer is composited on the fiber reinforced cement structural layer, the nano isolation layer is composited between the fiber reinforced cement decorative finish layer and the photocatalysis layer, and the fiber reinforced cement structural layer and the fiber reinforced cement decorative finish layer are composited to mold in a mould with a modeling. Net-shaped reinforced materials are laid in the fiber reinforced cement structural layer.

Description

technical field [0001] The invention relates to a nanometer self-cleaning fiber-reinforced cement product and a production method thereof. Specifically, it refers to realizing nanometer photocatalytic antifouling, self-cleaning and air purification functions on traditional fiber cement products by using a coating method. The products are mainly used in building roofs, building curtain walls, wall decoration, municipal traffic engineering construction and renovation projects. Background technique [0002] Satellite data show that the most severe vertical distribution of nitrogen oxide pollutants in the high air is in the Northeastern United States, Northeastern China and Western Europe. Air quality problems, especially in large cities and metropolitan areas, have attracted more and more attention, and people urgently need to take various measures to improve air quality. At the same time, with the development of urbanization, the society's demand for housing and transportatio...

Claims

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Application Information

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IPC IPC(8): E04F13/075B01D53/88B01D53/50B01D53/62B01D53/56B01D53/58C04B28/00C04B14/38C04B14/42C04B16/06
Inventor 熊吉如方寅生王杰
Owner NANJING BEILIDA NEW MATERIAL SYST ENG
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