WO2007137495A1

WO2007137495A1 - Application of plastic films or/and boards used with protective or/and reinforcement layers of buliding structures or/and mechanical equipment

Info

Publication number: WO2007137495A1
Application number: PCT/CN2007/001591
Authority: WO
Inventors: Shuhuan Wu
Original assignee: Shuhuan Wu
Priority date: 2006-05-30
Filing date: 2007-05-16
Publication date: 2007-12-06
Also published as: CN100570085C; CN1963057A

Abstract

An application of plastic films or/and boards used with protective or/and reinforcement layers of building structures or/and mechanical equipment is provided, to improve the endurance and flexibility of the building structures, and to solve the split of concrete structures and plasters, and the corrosion of the mechanical equipment. The application comprises the following steps: 1) cleaning the surface of the building structures or the mechanical equipment; 2) coating the outer surface of the building structures or the mechanical equipment with an adhesive; 3) bonding the plastic film, membrane or board to the outer surface of the building structures or the mechanical equipment coated by the adhesive.

Description

Application of plastic film and plastic board as building components, mechanical equipment protective layer and reinforcement layer

Technical field

The present invention relates to a method of enhancing the durability of buildings and infrastructure as well as mechanical equipment, and in particular to enhancing the durability of buildings and infrastructure and mechanical equipment by adding reinforcement layers. Background technique

The concrete structure has been available in the world for only about 150 years. Since concrete is an alkaline material, the corrosion of concrete in the atmosphere by C0 ₂ , S0 ₂ and N0 ₂ causes the neutralization of concrete to lose the ability to protect steel from corrosion, as well as concrete itself. The freeze-thaw damage and concrete use of sand and gravel aggregates containing active mineral components, the alkali aggregate reaction occurs when water expands to destroy the concrete. Direct and indirect losses due to various types of corrosion in the world account for about 4 to 5% of GDP, of which civil construction may account for 40%. In some cases, long-term maintenance costs during use may be as high as initial construction investment. Ten times, the durability of concrete structures and the corrosion of the equipment manufacturing industry are all related to the sustainable development of human beings. These corrosion processes require the participation of water or air. In addition, the construction of high-rise concrete to develop high-strength concrete, in order to improve the durability of concrete structure is currently solved through the following ways: through the development of high-performance concrete, increase the compactness of the concrete itself; increase the thickness of the concrete protective layer of the steel; with galvanized steel, stainless steel Coating a thin layer of concrete on a concrete surface or coating a thick coating of asphalt, epoxy asphalt, epoxy resin, polyurethane, etc., and a silicon-silicone permeable coating in a corrosive environment; and a concrete-based polymer mortar layer to protect concrete. However, various methods of extending durability are currently difficult to completely block the erosion of concrete and steel by harmful substances, and many of the molecular materials have a limited service life, such as epoxy resin, which is only 30 years old, and epoxy resin type. There are many, it is difficult to confirm that the epoxy resin durability can reach 30 years.

In addition, the corrosion protection of steel structures and equipment is solved by various anti-corrosion coatings. The coating construction procedure is complicated, and the durability of the coating is only ten to twenty years.

The population of the earth has reached more than 6 billion. If the current building is in the period of about 50 to 200 years, or even the infrastructure of the bridge will be rebuilt in the next two or three decades due to durability, etc., or Spending a few times the cost of new investment, even 10 times the huge investment and maintenance, is a major loss to society, and the earth is overwhelmed.

Different plastic films have different properties, such as polyester film with high mechanical strength, good durability, heat resistance, acid resistance, cold resistance, good barrier to air and water vapor permeability, but used alone in some cases. It may not be fully satisfactory for the barrier properties required as a building gas barrier or concrete protective layer; some plastic films are inexpensive and soft, but The barrier property is poor; some plastic films have poor durability. By using aluminized, inorganic oxide coated, aluminum foil, coated film, two or more layers of plastic film bonding composite, co-extruded to form a high barrier composite film, the composite film's air permeability, moisture permeability, moisture resistance and barrier The performance is significantly higher than that of a single material film, which combines the advantages of multiple materials. Mesh plastic film and composite film are mainly used in packaging field, agricultural plastic greenhouses and as anti-seepage geomembrane in construction. (Plastic plates are mainly used for decoration, such as PVC decorative panels. Currently, plastic film and plastic are not yet used. The composite film or plastic sheet is bonded to the building member as a precedent for the protective layer and the reinforcing layer of the building, and it is not used as a corrosion protection layer on the mechanical equipment.

In order to solve the problem of durability of the building structure, the quality problem of cracking of the concrete member and the cracking of the plastering, and solving the corrosion problem of the metal mechanical equipment, and increasing the flexibility of the brittle member such as concrete, the present invention provides a plastic film, a plastic plate Application of building components, mechanical equipment protective layers, reinforcement layers. The invention can effectively prevent air and/or moisture and other harmful substances from corroding damage to building components: concrete, steel, wood components or mechanical equipment, can prevent and limit cracking of concrete members, wall plastering layers, and prolong building structures or machinery. The service life of the equipment can improve the flexibility of brittle components such as concrete, and the sustainable development of society is meaningful.

The invention is achieved by the following technical solutions: 1) cleaning the surface of the building component or mechanical equipment; 2) applying the adhesive to the outer surface of the building component or mechanical device; 3) bonding the plastic film, the plastic composite film or the plastic plate to On the outer surface of a building component or machine that is coated with an adhesive. ,

The adhesive is a water-based adhesive; water is diluted in the water-based adhesive, and the water-based adhesive is water-based: water = 1: 0~10.

The adhesive is a water-based adhesive; a filler is added to the water-based adhesive, the filler is cement and/or water, and the weight ratio is an emulsion type adhesive: cement: water=1: 0-3.0: 0-2.0, The emulsion type adhesive, cement and/or water are uniformly mixed to form a polymer glue, and the polymer glue is applied to the outer surface of the building member, and the plastic film, the plastic composite film or the plastic plate is bonded to the outer surface of the building member. .

The emulsion type adhesive: cement: 7_Κ= : 0.5-1.0: 0-0.5

The adhesive is a water-based adhesive; a filler is added to the water-based adhesive, the filler is an inorganic mineral powder and/or water, and the water-based adhesive is by weight: inorganic mineral powder: water=1: 0- 3: 0-5; The inorganic mineral powder is a mixture of one or more of ultrafine SiO ₂ , CaCO ₃ , Ti _{2 2} A1 ₂ 0 ₃ , CaS0 ₄ powder.

Further, the water-based adhesive is in a weight ratio: inorganic mineral powder: ΤΚ=1: 0.1-2.6: 0.1~3.

The adhesive is a water-based adhesive; a filler is added to the water-based adhesive, the filler is an inorganic mineral powder and cement and/or water, and the weight ratio is an emulsion type adhesive: inorganic mineral powder: cement: water = 1 : 0-1.5: 0-1.5: Further, by weight ratio of emulsion type adhesive: inorganic mineral powder: cement: water = 1: 0.1-1.0: 0.1-1.0:

0-3

After the step of bonding the plastic film, the plastic composite film or the plastic plate to the outer surface of the adhesive-coated building member or the mechanical device, the following steps are further included: in the plastic film, the plastic composite film or the plastic Apply the adhesive or polymer glue to the outer surface of the board, and then dry it into an eagle and then paste the heat-insulating benzene board; or apply decorative paint or fire retardant paint; or apply the adhesive or polymer glue again, and then Plaster or bond the decorative surface of the block.

Since any corrosion is inseparable from water or air, corrosion will not occur as long as one of the water or air is cut off. This can be achieved by sticking a plastic film or a plastic plate as a building component, a mechanical protective layer, and a reinforcing layer.

The invention has the following advantages: 1. It can effectively block the corrosion of building components or mechanical equipment by moisture or/and gas and other harmful substances, solve the durability problem of building components and mechanical equipment, and greatly extend the use of building components and mechanical equipment. Durable years, suitable for a wide range. According to the needs of use, the appropriate plastic film, plastic composite film or plastic plate and appropriate adhesive are selected to make the protective layer formed after bonding have the required barrier property, bonding strength and good durability. For example, a high-resistance composite film or a polyester sheet sandwiched between a polyester film (PET) or a polyester film on both sides of a polyester film is attached to a concrete or cement mortar or a mechanical device, such as a viaduct, which seriously affects the life due to corrosion of ice salt. After sticking this plastic film or plate, it can greatly reduce the penetration of harmful substances such as moisture and air. During the effective bonding period, it can block the corrosion of metal caused by the penetration of water and air, stop the neutralization process of concrete, and reduce the concrete. Cracking with cement mortar can effectively protect components from corrosion of ice and salt and prolong component life. However, the polyester film is not resistant to sharp objects and should not be directly exposed to the outside. It is also required to be coated with an adhesive and then protected with cement mortar. Second, the plastic film or plastic plate is attached to the concrete of the brittle component to improve its flexibility (or elasticity). For example, the polyester film has a high tensile strength of about 200 MPa, and the nylon has a higher tensile strength, but the nylon is easy. Oxidation, durability is not as good as polyester. If the nylon membrane or plate is pasted on the concrete member, the polyester sandwich aluminum foil composite film is adhered on the outside to isolate the oxygen-protected nylon, or the composite film of polyester and nylon is bonded to form a composite member. Reinforce the flexibility of the concrete members, and at the same time, it has the effect of both increasing the durability of the building and improving the seismic resistance. Third, the cost is low, such as the use of a double-sided 12 micron polyester film sandwich 10 micron aluminum foil composite film, with good alkali resistance, good water resistance, good calcium resistance, low glass transition temperature, such as polyacrylate elastic emulsion, such as a pure acrylic emulsion, a styrene-acrylic emulsion, a silicone-acrylic emulsion or a silicone-acrylic emulsion, or a suitable powder-formed polymer binder added to the emulsion, and the composite film is adhered between the base wall and the insulating layer, or Between the concrete roof slab and the roof insulation layer, as the gas barrier layer of the wall or roof insulation layer, the outer side is further coated with an adhesive to facilitate the adhesion of the insulation layer, which can effectively block the indoor indoor water vapor from infiltrating into the outdoor area in the warm area. Reducing the moisture content of the insulation layer to ensure the insulation effect, the material cost is about 1.5 US dollars / m ² _; using the polyacrylate elastic emulsion plus cement paste the above polyester aluminum foil plastic composite film or a polyester film satisfying a certain thickness Steel structure, wood structure, plastic component corrosion protection insulation layer, material cost is about 2 USD / m ² , or

Paste the plastic film or board on the mechanical equipment or the concrete member, or attach it to the mechanical equipment with neoprene, and stick it with the epoxy resin and neoprene on the plastic film and the joint of the board. Fourth, durability is good, some plastics such as polyester have good durability, or some plastics are suitable for use in certain environments, which can meet the durability requirements. 5. It can expand the application range of plastic film, plastic composite film or plastic plate, making it widely used in the anti-corrosion of construction field and machinery and equipment, and contributing to the sustainable development of society. 6. Easy to use, simple and flexible to operate, no need for complicated equipment investment, just use appropriate materials, suitable temperature, directly bond with adhesive, or add other fillers to the water-soluble adhesive to form polymer rubber, plastic Film, plastic composite film or plastic plate is attached to building components or mechanical equipment. For example, when the original anti-corrosion coating is damaged on the mechanical equipment, it can be cut like a bicycle belt, and a plastic film or board is cut with a suitable adhesive. protection.

Appropriate adhesives and/or ultra-fine powders are used to adhere the appropriate plastic film, plastic composite film or plastic plate to the building components and mechanical equipment. As a building component protective layer and reinforcement layer, it can solve difficult concrete. Such problems as poor durability of building components, corrosion problems of mechanical equipment, and increased flexibility of concrete, which are advantageous for earthquake resistance and low cost. The invention is combined with the existing various techniques for extending the durability of the concrete structure and the steel anti-corrosion technology, and has important significance for prolonging the service life of the concrete and the mechanical equipment, and can also be used as a gas barrier layer for the thermal insulation wall and the roof, the outer wall And the roof waterproofing layer, the invention is of great significance for increasing the durability of the building and for the sustainable development of the society. detailed description

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First: The application of the plastic film, the plastic composite film or the plastic plate as the decorative layer of the building component protective layer in the present embodiment is achieved by: 1. preparing an adhesive; 2. preparing a plastic film, a plastic composite film or a plastic plate; , cleaning the surface of the building component; Fourth, applying the adhesive to the outer surface of the building component or mechanical equipment; 5. "bonding the plastic film, plastic composite film or plastic plate to the outer surface of the building component coated with the adhesive. Just fine.

The plastic film is polyester (PET), polyvinylidene chloride (PVDC), polyvinyl alcohol (PVA), ethylene vinyl alcohol (EV0H), nylon (PA), polyvinyl chloride (PVC), polyethylene. (PE), polypropylene (PP), polystyrene (PS:), polycarbonate (PC), polyvinylidene fluoride (PVDF), polychlorotrifluoroethylene (PCTF), polytetrafluoroethylene (ETFE), a plastic film of polyvinyl fluoride (PVF), ethylene-vinyl acetate copolymer (EVA), ionic polymer, acrylic resin (PMMA); the plastic composite film is a composite film of two or more plastic films, a composite film formed by co-extrusion, a film coated with aluminum or an inorganic oxide, a composite film sandwiched with aluminum foil, and a coated film, and the composite film is composited with a plastic film of the same material or a plastic film of any of the above materials; The plastic sheets are polystyrene (PS), styrene copolymer, ethylene-vinyl acetate copolymer (EVA), polypropylene (PP), polyamide (PA), polycarbonate (PC), polyoxymethylene (P0M), Polyphenylene ether (PP0), polyphenylene sulfide (PPS:), polysulfone (PSF), polyimide (PI), acrylate and ^

Polyetherimide (PEI), polyetheretherketone (PEEK), thermoplastic polyester (PET and PBT), various fluoroplastics are polytetrafluoroethylene (PTFE), tetrafluoroethylene-perfluoro(n-propylidene) Copolymer of ether (PFA), polyperfluoroethylene propylene (FEP), ethylene-tetrafluoroethylene copolymer (ETFE), polyvinylidene fluoride (PVDF), polychlorotrifluoroethylene (PCTFE), polyvinyl fluoride ( PVF), a plastic sheet of a copolymer of tetrafluoroethylene-hexafluoropropylene-vinylidene fluoride (THV) or a plastic alloy sheet formed of the above plastic.

The building element is a concrete member, an exterior cement mortar or a mixed mortar plaster layer of a masonry, a steel member, a wood member, a plastic member or an insulating layer. The mechanical device is a metal, wooden or plastic device.

The adhesive is a resin type adhesive, which is a phenolic resin glue and a modified phenolic resin glue, an amino resin glue, an epoxy resin and a modified epoxy resin glue, a polyurethane resin glue, an unsaturated polyester glue, a polyacrylate glue. , silicone resin glue, asphalt; or the adhesive is a solvent-based adhesive, which is a polyurethane glue, an epoxy resin glue, an alcohol-soluble phenolic resin glue; or the adhesive is a water-based adhesive, including an emulsion type and an aqueous solution Type, is an epoxy resin emulsion, waterborne epoxy resin, waterborne polyurethane glue, water-soluble phenolic resin glue, polyacrylate emulsion, vinyl acetate-ethylene emulsion, polyvinyl acetate emulsion or a mixed emulsion of the above emulsion, or contains a ring a cross-linked emulsion of oxygen functional groups, or a redispersible dry powder of these emulsion spray-cured; or the adhesive is a rubber-type adhesive, which is neoprene, styrene butadiene rubber, nitrile rubber, butyl rubber, and isobutylene. Glue, polysulfide rubber, silicone rubber and fluoro rubber, rubber type adhesive may be solvent type or emulsion type; or the adhesive is silicone Adhesives and adhesive composite; or said adhesive is a natural adhesive rosin, asphalt.

The plastic film and the plastic plate used in the embodiment include various plastic films and plastic plates, and are generally applied to a polyester film having high polarity, good durability, and low cost, and the board is preferably pasted, if necessary, and non-polar. The film, such as polyethylene film bonding, should be chemically or physically treated to make the surface polar and surface roughened, to become a plastic film that is easy to bond, or to sandwich it into the middle of a strong polar plastic film to form a composite film. For the intermediate layer, the selected plastic film, plastic composite film or plastic plate should be able to meet the required barrier properties, durability and required strength. When bonding with concrete components or mortar layer with emulsion adhesive, it should be used with strong adhesion, good calcium ion resistance, good alkali resistance, good durability, good elasticity, easy to adapt to deformation of building components, and the price is better. Low adhesive, used as a gas barrier in buildings or as a protective layer used in dry environments. Low cost and easy to apply adhesives are suitable for cement based, low glass transition temperatures, polyacrylate elastomers that meet these properties. Emulsion adhesives, such as pure acrylic emulsion, styrene-acrylic emulsion, silicon-acrylic emulsion, silicon-benzene-acrylic emulsion, if the glass transition temperature of the polyacrylate emulsion is relatively low, the bonding strength is low or can not be bonded; The adhesive has strong adhesion, good water resistance and good elasticity. It can be bonded with neoprene in very wet and underwater environments, as well as in plastic film, plastic plate joints or non-polar plastics, but not applicable. Adhesive with a gas-permeable alkaline member such as concrete or sand pad; epoxy resin, acrylic resin, polyurethane glue, etc. can be bonded, but the bonding strength is different, and even the same Said adhesive bonding effect due to different production processes are quite different. Embodiment 2: This embodiment differs from the specific embodiment in that it is based on water-based glue.

Release, water-based adhesive according to the weight ratio: water = 1: 0-10, when the redispersible dry powder which is spray-cured with emulsion type adhesive is used as the adhesive, the cured product of the polymer emulsion produced by each manufacturer The content is about 40~60%, so the amount of dry rubber powder used to prepare the adhesive for the redispersible rubber powder prepared by these emulsions should be reduced according to the corresponding proportion. Under the premise of meeting the bonding strength requirement, adding appropriate amount of water can reduce the cost, and the diluted water-based adhesive is applied to the outer surface of the building component, and the plastic film, the plastic composite film or the plastic plate is bonded to the outer surface of the building component. In addition, the amount of water added is related to the degree of drying of the member to be bonded and the required bonding strength, and the more the bonded member is drier, or the lower the bonding strength required, the greater the proportion of water added, otherwise the reverse is true.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 3: This embodiment differs from the specific embodiment in that a filler is added to an emulsion type adhesive in a water-based adhesive, the filler is cement and/or water, and the weight ratio is an emulsion type adhesive: cement: water =1: 0-3. 0: 0-2. 0, uniformly mix the emulsion adhesive, cement and/or water to form a polymer cement, and apply the polymer glue to the outer surface of the building component, The plastic film, plastic composite film or plastic plate is attached to the outer surface of the building component. When the redispersible dry rubber powder solidified by the emulsion spray is used as an adhesive, the cured product content of the polymer emulsion produced by each manufacturer is about 40~ 60%, so the amount of rubber powder used to prepare the adhesive for the redispersible rubber powder prepared by these emulsions should be reduced according to the corresponding proportion.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 4: The present embodiment differs from the third embodiment in that the weight ratio is an emulsion type adhesive: cement: water = 1: 0. 5-1. 0: 0-0. 5, other and specific embodiments The same is true. When cement is added to account for 75-80% of the emulsion and no water is added, the amount of cement is almost completely reacted with the water in the emulsion, so that the emulsion is dried and formed into a film, and the 180-degree peeling strength can reach 40~60N/25mm, which can fully satisfy the external The bonding strength requirement of the protective layer, the reinforcing layer and the concrete member can be used as a reinforcing layer by sticking a nylon plastic film or a plastic plate on the concrete, reducing brittleness of the concrete member, increasing flexibility, and improving seismic performance. When the bonding strength is required to be high, cement bonding may be added to the emulsion, and water should not be added; when the amount of cement added exceeds 80%, water needs to be added as the amount of cement increases, and the bonding strength is greatly reduced. It can be used when the joint strength is low; the less the amount of cement added, the closer the bonding effect is to the pure emulsion bonding, and there is no cost reduction. After the film is attached to the outside, it can completely block the corrosion of the steel by harmful substances. When it is bonded with concrete, wood, plastic and steel and other components, it can achieve the required bonding strength to meet the anti-corrosion requirements, and the construction is convenient and the price is low.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Five: This embodiment differs from the third embodiment in that the filler added to the water-based adhesive is inorganic mineral powder and/or water, and the water-based adhesive is in a weight ratio: inorganic mineral powder: water = 1 : 0-3: 0-5; the inorganic mineral powder is one or any two or a mixture of any two or more of ultrafine SiO 2 , CaC03, TI 02 , A 120 3 , CaS04 powder; When the emulsion type spray-cured redispersible dry rubber powder is used as an adhesive, since the polymer emulsion produced by each manufacturer has a cured product content of about 40 to 60%, it can be made of these emulsions. When the redispersible rubber powder is prepared, the amount of the rubber powder should be reduced according to the corresponding proportion. The water-based adhesive, the day

Or the water is uniformly mixed to form a polymer cement, the polymer glue is applied to the outer surface of the building member, and the plastic film, the plastic composite film or the plastic plate is bonded to the outer surface of the building member.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Sixth embodiment: The present embodiment differs from the third embodiment in that it is a water-based adhesive in a weight ratio: inorganic mineral powder: water = 1: 0. 1-2. 6: 0. 1-3, other components and The method of implementation is the same as that of the third embodiment.

BEST MODE FOR CARRYING OUT THE INVENTION Seventh Embodiment: The embodiment is different from the specific embodiments of the third to sixth embodiments. The filler added to the emulsion type adhesive is inorganic mineral powder and cement and/or water, and the weight ratio is emulsion type adhesive: inorganic mineral powder Body: Cement: Water = 1: 0-1. 5: 0-1. 5: 0-4, when the redispersible dry rubber powder cured by emulsion spray is used as an adhesive, due to the polymer emulsion produced by each manufacturer The content of the cured product is about 40 to 60%, so the amount of the rubber powder used to prepare the adhesive of the redispersible rubber powder prepared by using these emulsions should be reduced according to the corresponding ratio.

BEST MODE 8: This embodiment differs from the specific embodiment 7 in that the weight ratio is an emulsion type adhesive: inorganic mineral powder: cement: water = 1: 0. 1-1. 0: 0.. 1-1 0: 0-3, when the redispersible dry rubber powder cured by emulsion spray is used as an adhesive, since the polymer emulsion produced by each manufacturer has a cured product content of about 40 to 60%, it can be made of these emulsions. The amount of rubber powder used in the preparation of the redispersible rubber powder should be reduced according to the corresponding proportion. · Embodiment 9: This embodiment differs from Embodiment 1 to Embodiment 8 in that a plastic film, a plastic composite film or a plastic plate is attached to an outer surface of a building member, in a plastic film, a plastic composite film or a plastic plate. Apply an adhesive or polymer paste to the outer surface, and then apply a heat-resistant benzene board, or apply a decorative coating or fire retardant coating, or apply a primer or polymer paste again. Plaster or bond the decorative surface of the block. This embodiment provides a construction process in which a plastic film is attached, a heat insulating layer is applied to the outer side of the board, and plastering and decoration are required after the plastic film and the board are attached.

There are many kinds of adhesives. The experiment proves that many adhesives can stick plastic film and board, especially strong polar plastics to building components. For the convenience of construction, the adhesive should be selected at room temperature first, and must have certain elasticity after curing. Adhesives that meet strength requirements and durability. Adhesives include solvent-based, water-based, resin-based, and hot-melt adhesives. Solvent-based adhesives may have adverse effects on the environment. Hot melt adhesives are inconvenient to construct unless necessary. When used. The addition of inorganic mineral powder, cement and water is suitable for mixing with water-based adhesives, especially emulsion-type adhesives, and the amount of addition varies depending on the type of adhesive, the required bonding strength, and the water absorption rate of the member to be bonded, among which inorganic minerals The powder should be ultra-fine powder that reaches the micron level or even reaches the nanometer level. The purpose of adding inorganic mineral powder, cement and water is to reduce the low cost on the premise of meeting the bonding strength requirements, and to select the appropriate variety of mineral powder, and to increase the bonding strength, such as cement-based, glass. Adding appropriate amount of silica fume and water to the lower temperature polyacrylate elastomer emulsion (silica fume is a fine powder in the exhaust gas recovered by the ferrosilicon smelter, which is highly active and usually has a particle size of 200 nm. Under the Si0 ₂ , the price is low, it is about 1/3 of the price of the same diameter Si0 ₂ processed with quartz ore. ),

Water = 1: 0. 4-0. 8: 0. 7~1. 5 formulated polymer rubber, the viscosity is not reduced compared with the appearance of the original emulsion, the polymer glue is applied to the surface of the concrete member, The polyester (PET) film is adhered to the concrete surface, and the 180-degree peel strength after drying can reach 40 to 50 N/25 mm. The addition of silica fume has better adhesion effect than cement addition, lowers the bonding cost, and is more convenient for painting. When the plastic film is pasted as a gas barrier layer, the strength requirement is met. China Patent Publication No. CN1936208, entitled "Supported Bundled Composite Thermal Insulation Wall", requires a gas barrier (or as a roofing gas barrier) in the energy-saving thermal insulation composite wall, with a polyester foil The plastic composite film is added with a suitable amount of silica fume and water to form a gas barrier layer, and the cost is very low, and the durability is higher than that of the conventional general-purpose asphalt or modified asphalt material as the gas barrier layer. When the plastic film or plastic composite film and the steel structure are pasted as the anti-corrosion layer, the cement is added with the polyacrylate emulsion, but water should not be added as the anti-corrosion isolating protective layer of the steel structure, which is not only inexpensive but can reach or nearly reach 50. The effective anti-corrosion period of the year is higher than the durability of various anti-corrosion coatings with high price and complicated construction procedures. When bonding plastic film or board to mechanical equipment, epoxy resin, neoprene and other adhesives can also be used. There are many types of epoxy resin glues. When used for bonding with plastic film, the adhesive should be of good elasticity, which can achieve better bonding effect. If the product with large brittleness is used, the peel strength after curing Very low, does not meet the bonding requirements.

Polyacrylate elastomer emulsion adhesive has good adhesion to various materials (including many non-polar materials), excellent water resistance, aging resistance, good toughness, non-toxic, non-polluting, and is an environmentally friendly adhesive. Internationally, the use of polyacrylate emulsion adhesive on the outer wall of the thermal insulation benzene board as an outer protective layer under the ultraviolet irradiation conditions has been working well for nearly 40 years, so the use of polyacrylate emulsion adhesive paste plastic film, board in concrete On the component, it is hoped that the concrete will not be eroded by other harmful substances for about 50 years without being exposed to ultraviolet rays, stop the neutralization process, protect the steel bar from corrosion, and apply it with other resin type and solvent type adhesives. In various situations, it can meet the requirements of bonding strength, durability and economy. After about 50 years, the plastic protective layer and the reinforcing layer are replaced, so that the social infrastructure and the building function can meet the requirements. It can be used for hundreds of years, thousands of years, and even longer, and it is of great significance to the sustainable development of society.

Claims

Claim

1. A plastic film and a plastic plate as a building component, a mechanical protective layer and a reinforcing layer, which are characterized by the following steps: 1) cleaning the surface of a building component or a mechanical device; 2) applying the adhesive to the building component Or on the outer surface of the mechanical device; 3) bonding the plastic film, plastic composite film or plastic plate to the outer surface of the structural member or mechanical device coated with the adhesive. '

2. The use of a plastic film or a plastic sheet according to claim 1 as a building member, a protective layer for a mechanical device, and a reinforcing layer, wherein the adhesive is a water-based adhesive; and water is diluted in the water-based adhesive. , water-based adhesive by weight ratio: water = 1: 0~10.

3. The use of a plastic film or a plastic sheet according to claim 1 as a building member, a protective layer for a mechanical device, and a reinforcing layer, wherein the adhesive is a water-based adhesive; and a filler is added to the water-based adhesive. The filler is cement and/or water, and the weight ratio is emulsion type adhesive: cement: water = 1: 0-3.0: 0-2.0, the emulsion type adhesive, cement and/or water are uniformly mixed to form polymer rubber The polymer glue is applied to the outer surface of the building member, and the plastic film, the plastic composite film or the plastic plate is bonded to the outer surface of the building member.

4. The use of a plastic film or a plastic sheet according to claim 3 as a building member, a protective layer for a mechanical device, and a reinforcing layer, characterized in that the emulsion type adhesive: cement:

: 0.5-1.0: 0~0.5.

5 . The use of a plastic film or a plastic sheet according to claim 1 as a building member, a protective layer for a mechanical device, and a reinforcing layer, wherein the adhesive is a water-based adhesive; and a filler is added to the water-based adhesive. The filler is an inorganic mineral powder and/or water, and the water-based adhesive is in a weight ratio: inorganic mineral powder: water=1: 0-3: 0-5; the inorganic mineral powder is ultrafine Si0 ₂ , a mixture of one or more of CaC0 ₃ , Ti0 ₂ , A1 ₂ 0 ₃ , and CaS0 ₄ powders.

6. The use of a plastic film or a plastic sheet according to claim 5 as a building member, a protective layer for a mechanical device, and a reinforcing layer, characterized in that the weight ratio is a water-based adhesive: inorganic mineral powder: water = 1: 0.1 -2.6: 0.1~3.

7. The use of a plastic film or a plastic sheet according to claim 1 as a building member, a protective layer for a mechanical device, and a reinforcing layer, wherein the adhesive is a water-based adhesive; and a filler is added to the water-based adhesive. The filler is inorganic mineral powder and cement and/or water, and the weight ratio is emulsion type adhesive: inorganic mineral powder: cement: water = 1: 0-1.5: 0~1.5: 0~4.

8 . The application of the plastic film and the plastic plate according to claim 7 as a building component, a protective layer of a mechanical device and a reinforcing layer, characterized in that the weight ratio is an emulsion type adhesive: inorganic mineral powder: cement: water=1 : 0.1~1.0: 0.1-1.0: 0-3

9. The use of a plastic film or a plastic sheet according to claim 1 as a building member, a protective layer for a mechanical device, and a reinforcing layer, characterized in that the bonding of the plastic film, the plastic composite film or the plastic sheet to the coating is completed. The construction of the adhesive After the step of constructing the outer surface of the component or the mechanical device, the method further comprises the steps of: applying an adhesive or a polymer glue on the outer surface of the plastic 龠3⁄4 or the plastic plate, and drying the film to form a film and then sticking the heat insulating benzene Or apply a decorative or fireproof coating; or reapply the adhesive or polymer paste and follow the plaster or bond block to decorate the finish.