Use of plastic film or plastic composite film as architecture component protective film or decorative film

A technology of plastic film and building components, applied in building components, building insulation materials, etc., can solve the problems of incomplete satisfaction, poor performance, and low price

Inactive Publication Date: 2006-12-27
吴淑环
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Various plastic films have different properties. For example, polyester film (PET) has high mechanical strength, good durability, excellent heat resistance and cold resistance, and has good performance in blocking air and water vapor penetration, but it cannot be used alone. Satisfy the barrier properties required as a building air barrier or concrete protective layer, and the flexibility of increasing the thickness is not good; polyvinyl alcohol film (PVA) is a barrier O 2 , CO 2 , N 2 The performance is the best, but the water vapor resistance is poor, and it is a plastic film that is easy to hydrolyze. Its strength is better than polyethylene film (PE), but it is much lower than polyester film (PET); high-density polyethylene film (PE) is low in price, Soft, low strength, but its performance of blocking air and water vapor is very poor, because it is easy to heat and laminate to make packaging bags, the price is low, and the thickness of the composite film is increased, so it is composited with other plastic films as the inner lining of the packagi...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0006]Specific implementation mode one: the application of plastic film or plastic composite film as the protective film of building components in this embodiment is realized in this way: one, prepare adhesive; two, prepare plastic film or plastic composite film; three, clean the surface of building components; four, The adhesive is applied to the outer surface of the building component; five, the plastic film or plastic composite film is bonded to the outer surface of the building component coated with the adhesive; the plastic film is a polyester film (PET) , polyvinylidene chloride film (PVDC), polyvinyl alcohol film (PVA), ethylene-vinyl alcohol copolymer film (EVOH), nylon film (PA), polyvinyl chloride film (PVC), polyethylene film (PE), Polypropylene film (PP), polystyrene film (PS), polycarbonate film (PC), polyvinylidene fluoride film (PVDF), polychlorotrifluoroethylene film (PCTF), ethylene-vinyl acetate copolymer film (EVA ), ionic polymer film, acrylic resin film (P...

specific Embodiment approach 2

[0007] Embodiment 2: This embodiment differs from Embodiment 1 in that water is added to the water-based adhesive for dilution, and the weight ratio is water-based adhesive: water = 1: > 0-10. When the emulsion-type adhesive spray-cured redispersible dry rubber powder is used as the adhesive, since the cured product content of the polymer emulsion produced by each manufacturer is about 40-60%, the redispersible adhesive made with these emulsions The amount of dry rubber powder used to prepare adhesives should be reduced in proportion. On the premise of meeting the requirements of bonding strength, adding an appropriate amount of water can reduce the cost. Apply the diluted water-based adhesive to the outer surface of the building component, and bond the plastic film or plastic composite film to the outer surface of the building component. The amount of water is related to the dryness of the member to be bonded and the required bonding strength. The drier the member to be bonde...

specific Embodiment approach 3

[0008] Specific embodiment three: the difference between this embodiment and specific embodiment one is that a filler is added to the water-based adhesive, the filler is inorganic mineral powder and / or water, and the weight ratio is water-based adhesive: inorganic mineral powder: water =1:>0~3:0~10; the inorganic mineral powder is ultrafine SiO 2 , CaCO 3 、TIO 2 、Al 2 o 3 , CaSO 4 One of the powders, or any two or any two or more of them in any proportion; The content of the cured product is about 40-60%, so the amount of rubber powder used in the preparation of adhesives with the redispersible rubber powder made of these emulsions should be reduced in proportion. Mix the water-based adhesive, inorganic mineral powder and / or water evenly to form a polymer glue, paint the polymer glue on the outer surface of the building component, and bond the plastic film or plastic composite film to the outside of the building component On the surface.

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PUM

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Abstract

The invention relates to the application of plastic film or plastic composite film, used as building element protective film or decorating film, wherein the invention coats adhesive or polymer on the surface of building element, then adheres the plastic film or plastic composite film on the said surface. The invention has the advantages that: it can prolong the service life of decorate element, with low cost and simple operation, while the polymer is made by mixing adhesive and other stuff on site.

Description

technical field [0001] The invention relates to the application of plastic films or plastic composite films. Background technique [0002] Concrete structures have only been around in the world for about 150 years. Since concrete is an alkaline material, the carbon dioxide in the atmosphere corrodes the concrete and causes the carbonization of the concrete, and the infiltration of chloride ions in the surrounding environment into the concrete will cause the corrosion of the steel bars, as well as the freeze-thaw damage of the concrete itself and the use of active mineral components in the concrete. Sand and gravel aggregates, alkali aggregates react with water and expand to destroy concrete. The book "Guidelines for Durability Design and Construction of Concrete Structures" published by China Architecture and Building Press in 2004 and compiled by the Engineering Structure Safety and Durability Research Consulting Project Team of the Department of Civil Engineering, Water C...

Claims

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Application Information

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IPC IPC(8): E04B1/62
Inventor 吴淑环
Owner 吴淑环
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