Use of plastic film and plastic board as construction member, mechanical device protection layer, and reinforced layer

Abstract

The invention is an application of plastic film and plastic sheeting as building components, mechanical equipment protection layer and reinforcement layer, and it involves applications of plastic thin films, plastic complex film or plastic plate. The invention is aimed at the resolution of the durability of construction, the quality problems of concrete element cracking and the plaster cracking, the corrosion problems of mechanical equipment and the problem of concrete components is bad flexible. The invention daubs the adhesive or the polymer prepared of adhesive and inorganic powders or cement to the outer surface of buildings, then bonds the plastic thin films, plastic complex film or plastic plate on the outer surface of buildings or mechanical devices which is daubed with adhesive or polymer. The advantages of the invention are: it resolves the durability of construction and mechanical equipment effectively, increases the flexibility of concrete components and improve the performance of concrete structures; it is low cost, durable, easy operation, no complicated equipment needed, it bonds directly using adhesive or prepares polymer on site according adding other filler into adhesive and stirring.

Description

technical field [0001] The invention relates to the application of a plastic film and a plastic plate, and the plastic film includes a single film and a plastic composite film. Background technique [0002] Concrete structures have only been around in the world for about 150 years. Since concrete is an alkaline material, CO in the atmosphere 2 , SO 2 , NO 2 Concrete corrosion neutralizes the concrete, making it lose the ability to protect the steel bars from corrosion of the steel bars, as well as the freeze-thaw damage of the concrete itself and the use of sand and gravel aggregates containing active mineral components in the concrete, which causes alkali-aggregate reactions to react with water The expansion breaks down the 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 ...

AI Technical Summary

Problems solved by technology

[0004] Various plastic films have different properties, such as polyester film, which has high mechanical strength, good durability, heat resistance, acid resistance, and cold resistance, and has good air and water vapor barrier properties, but it is used alone in some cases. It still cannot fully meet the barrier properties required as a building air barrier or concrete protective layer; high-density polyethylene film is low in price, soft, and low in strength, but its performance in blocking air and water vapor is very poor, because it is easy to be hot-pressed and laminated. Packaging bags, low price, and increase the thickness of the composite film, so it is the most widely used film as the inner lining layer of packaging bags compounded with other plastic films; polyvinylidene chloride film has a large molecular density and regular structure, and is currently mainly used It is suitable for the packaging of ham sausage, but the water vapor barrier performance is lower than that of the composite film sandwiched with aluminum foil

In the composite film, a high barrier composite film is often formed by using aluminum plating, inorganic oxide plating, aluminum foil, coating film, two or more layers of plastic film bonding, compounding, and co-extrusion. The air permeability and moisture permeability of the composite film , Moisture resistance and barrier performance are significantly higher than single material film, which integrates the advantages of multiple materials. At present, plastic film is mainly used in packaging field, agricultural plastic greenhouse and as anti-seepage geomembrane in construction; currently plastic Panels are mainly used for decoration, such as PVC decorative panels, but there is no precedent for bonding plastic films, plastic composite films or plastic panels to building components as protective and reinforcing layers of buildings, nor have they been used for As an anti-corrosion protective layer on mechanical equipment