JPH0649965A - Anchoring method of formed body to wet surface - Google Patents

Abstract

PURPOSE:To make it possible to fix a formed body to a wall without lowering adhesive force by anchoring and fixing the other formed body to a non-moisture permeable wall exposed under the wet environment by means of a double faced adhesive tape, and applying waterproof treatment to the peripheral surface of the formed body by means of a sealing material. CONSTITUTION:A formed body 1 of aluminum is anchored and fixed to a tile wall by means of a double faced adhesive tape 2. After that, waterproof treatment is applied to the peripheral surface of the formed body 1 by means of a sealing material 3. In order to maintain the adhesive properties of the double faced adhesive tape 2, waterproof treatment is made by the sealing material 3 so that the incursion of water into an adhesive surface is prevented, so adhesive force is maintained over an extended period of time by completely separating the open air from the adhesive surface.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for easily adhering and fixing another molded article to a wall surface exposed to a wet condition, such as a water wall, particularly a non-moisture permeable wall surface such as a tile in a bathroom.

[0002]

2. Description of the Related Art Building material tiles have high water resistance, fire resistance, and weather resistance, and also have the texture of the material, and are widely used in the construction field due to their abundant design characteristics such as shape, color and design.

The tiles are classified into interior tiles, exterior tiles, and mosaic tiles according to the applications used. Among them, the interior tiles are applied to the water supply of buildings, that is, bathrooms, washbasins, toilets and the like.

[0004]

The tiles used in the bathroom are very beautiful and have good waterproofness, but when exposed to moisture for a long period of time, the inner wall surface of the bathroom will not be contaminated or deteriorated due to aging. The current situation is that there is no technical method to prevent this. For example, cracks occur in the tile surface and tile joints due to contraction and deformation of the base skeleton, and in particular, the occurrence of these cracks causes water leakage at the corners.

Further, since the bathroom is constantly humid and insufficiently ventilated, the tile joints are likely to be moldy. In addition, white ants are apt to be generated inside the body, resulting in unsanitary condition and soiling of the tile surface and mechanical damage. The current situation is that repairing cracks, molds, stains, and other spots on the tiles and joints requires a great deal of effort and there is no definitive method.

When mold is generated in the joints, it is common to first wash with water, then with a dilute hydrochloric acid solution or a neutral detergent, and then wash with water to wash off, but a small amount of fungus remains in the pores of the joint material. Therefore, after 4 to 5 days, it will reproduce again and the dirt will become severe.

[0007]

In order to solve the above-mentioned problems, the present inventors have completed the present invention as a result of various studies.
The present invention relates to a method for easily fixing and fixing a molded body on a wall surface of a bathroom or the like exposed to a humid environment. That is, a method of fixing and fixing a molded body to the surface of a tile or the like used by using a double-sided adhesive tape, and waterproofing the outer peripheral portion of the molded body using a sealing material to fix and fix the molded body. Is.

The term "molded product" as used herein refers to a material that is non-moisture permeable and has the appearance and shape of a tile. For example,
Examples include glass, aluminum, stainless steel, and plastic. Of these, aluminum is particularly preferable because it is lightweight, easy to handle, and capable of forming a free shape.

Next, a method for fixing the molded body will be described. As a method for fixing the molded body, a wet method using an adhesive and a dry method not using an adhesive can be considered.

The wet method is a method of adhering the molded body to the tile surface using an adhesive material. There are cement mortar type and organic polymer type (epoxy resin type, synthetic resin type emulsion type) as the adhesive to be used, but the tile surface of the adherend is treated with glaze and the surface is very smooth Therefore, it is difficult to bond, and in order to improve the adhesiveness, it is necessary to make uneven scratches on the tile surface, and the work is extremely difficult.

Further, even if sufficient adhesion can be achieved, it is difficult to remove when the adhered molded body is renewed. Further, it is necessary to carry in various tools and materials into a narrow space such as a bathroom to carry out the work, and to carry out the remaining materials after the work. On the other hand, if the organic polymer adhesive is used under a high humidity condition in a bathroom or the like, it absorbs water and deteriorates, so that the adhesive strength may decrease.

Next, the dry method will be described. There are pin type fixing method, curl plug type fixing method, suction plate hooking method, and keyhole hooking method.

The method is a method in which a tile is drilled up to the base frame using a drill, the pins are fixed with an adhesive, and the surface finishing material is set with the pins at the upper end (see FIG. 1). Is similar to, but is a method of fixing the pin using a curl plug. Is a method of fixing the surface finishing material to the tile surface using a suction disk (see FIG. 2). Is a method in which a pin is fixed to the drilled hole and a surface finishing material is fixed using a screw (see FIG. 3).

In any of the methods, the work is difficult, and pins are formed on the surface of the surface finish material, or a gap is created between the tile surface and the surface finish material.

Therefore, the present inventors have paid attention to the use of a double-sided adhesive tape as an adhesive method which is easy to work, has sufficient adhesive force, and maintains long-term durability. The double-sided adhesive tape has a sufficient adhesive strength to the tile surface of the molded body and is very easy to renew the molded body.

Many double-sided adhesive tapes are commercially available, and any one is sufficient as long as it satisfies the predetermined performance. Since the part used in the present invention is in a wet environment such as a bathroom, a double-sided adhesive tape having high water resistance is more suitable. An example of the product is a double-sided tape for water supply (manufactured by Nitto Denki Kogyo Co., Ltd.).

An example of the adhesive strength (180 ° peeling method) and shear adhesive strength of the double-sided adhesive tape is shown in Table 1 (Temperature 23).
C).

[0018]

[Table 1]

In Table 1, the test method of the adhesive strength is shown in FIG.
The method for testing the shear adhesive strength was according to FIG.

Next, the molded body is fixed and fixed with a double-sided adhesive tape, and then a sealing material is used to waterproof the periphery of the panel. The purpose of this sealing material is to prevent water from entering the back surface of the fixed panel.

Many sealing materials are commercially available. Silicone-based, modified silicone-based, polysulfide-based, acrylic urethane-based, polyurethane-based, modified polysulfide-based, acrylic-based, SBR, butyl rubber-based sealing materials and oil-based caulking materials. There is.

Generally, the curing mechanism of the sealing material is 1
There are two types, one type and one type is a moisture curing type that reacts with moisture in the air to cure from the surface, and a two component type cures when the main component of the base material reacts with the catalyst of the curing agent. It is a reaction hardening type.

In the present invention, the location to be applied is the bathroom around the water, so that the humidity is high, that is, it is in a wet state. Therefore, the moisture curing type is most suitable.

Examples of materials suitable for the present invention include silicone sealants manufactured by Sekisui Chemical Co., Ltd., silicone sealants 83 (containing an antifungal agent), and bath seals. Table 2 shows the properties and physical properties of the silicone sealant.

[0025]

[Table 2]

FIG. 6 shows the temperature-relative humidity relationship of the one-component moisture-curing type.

Next, an embodiment of the present invention will be described with reference to FIGS. (A) A double-sided adhesive tape is attached to the back surface of the aluminum plate from the peripheral portion substantially evenly with a target of 1 cm ² for a weight of 180 g of the aluminum plate. (B) An aluminum plate is firmly fixed to the tile surface. (C) Fill the outer periphery of the fixed and fixed aluminum plate with a sealing material without any gap.

[0028]

The method of fixing the molded body to the wet surface according to the present invention is to perform waterproofing treatment with a sealing material so that moisture does not enter the adhesive surface in order to maintain the adhesiveness of the double-sided adhesive tape for a long time. The adhesive force is maintained for a long time by completely shutting out the outside air and the adhesive surface.

[0029]

EXAMPLES Examples will be described below, but the technical scope of the present invention is not limited to these examples.

Example 1 Shear retention was tested using a double sided adhesive tape. A tape having a width of 10 mm and a length of 2.0 mm was sandwiched between adherends (Bakelite plate). A sealant (silicone sealant, Sekisui Chemical Co., Ltd.) around the double-sided adhesive tape was waterproofed and not waterproofed. Then, temperature 20 ℃, humidity 90% R
A load of 500 g was applied in an atmosphere of H and a temperature of 40 ° C. and a humidity of 90% RH, and the shift distance after 1 Hr was measured. The contents are shown in FIG. 9 and the results are shown in Table 3. When the sealing material treatment was performed, the shear holding force was significantly improved as compared with the case where the sealing material treatment was not performed.

[0031]

[Table 3]

Example 2 Concrete sidewalk board (JIS A5304) (30 cm)
Interior tiles (100 mm x 100 cm)
mm) Showa pressure bonding mortar (manufactured by Showa Denko KK)
Nine sheets were stuck using, and then indoor curing was performed for 2 weeks. Two identical products were prepared.

Then, a 270 mm square aluminum plate (manufactured by Showa Aluminum Co., Ltd.) was used as a molding material, and this aluminum plate was fixed and fixed to the interior tile surface with a double-sided adhesive tape (commercially available product).

Around the fixed aluminum plate, a silicone sealant (manufactured by Sekisui Chemical Co., Ltd.), which is a sealing material, was waterproofed and not waterproofed.

After carrying out this treatment, the specimen was hung vertically in a chamber at a temperature of 50 ° C. and a humidity of 90% RH and left for observation. As a result, it was observed that water penetrated into the back surface of the aluminum plate and the aluminum plate was peeled off in the specimen that was not treated with the sealing material. But,
The method of waterproofing with a sealing material showed no abnormality even after about 3 months.

Example 3 It was carried out on the wall surface of the bathroom about 10 years after the construction. The tiles and joints on the wall surface were cracked and repair work was carried out for 1 m ² . To describe the construction procedure, first, oil, water, rubber, etc. on the surface of the adherend were removed cleanly, and uneven surfaces and rough surfaces were made as much as possible. Next, a predetermined amount of double-sided adhesive tape No. 57 (manufactured by Nitto Electric Industry Co., Ltd.) was attached to the surface finish material. A 220 mm square aluminum plate (manufactured by Showa Aluminum Co., Ltd.) was used as the surface finish material used here. This aluminum tile was adhered to the adhered tile surface, and then the periphery of the aluminum tile surface was treated with a silicone sealant (manufactured by Sekisui Chemical Co., Ltd.) as a sealing material to complete the work. This work was completed in about 1 hour, and the follow-up observation was carried out thereafter, but no problem occurred.

[0037]

As described above, the present invention is a method of fixing a molded product to a tile wall surface of a bathroom or the like that has been contaminated and deteriorated by being exposed to humid conditions for a long time. That is, by fixing and fixing the molded body and the tile surface with double-sided adhesive tape, and waterproofing the outer peripheral portion of the molded body with a sealing material, the wall surface exposed to a wet environment, which has been impossible in the past. It is possible to fix it without lowering the adhesive strength. Furthermore, according to this method, it is possible to work in a narrow space without requiring various tools for loading and unloading materials. Also, it is easy to renew the molded body.

[Brief description of drawings]

FIG. 1 is a front view and a sectional view showing a conventional fixing method.

FIG. 2 is a cross-sectional view showing a conventional fixing method.

FIG. 3 is a cross-sectional view showing a conventional fixing method.

FIG. 4 is a front view showing a method for testing the adhesive strength, which shows the performance of an example of a double-sided adhesive tape.

FIG. 5 is a front view showing a test method for shear adhesive strength showing the performance of an example of a double-sided adhesive tape.

FIG. 6 shows a temperature of a moisture-curing type-an example of a sealing material.
It is a relationship diagram of relative humidity.

FIG. 7 is a front view showing an embodiment of the present invention.

FIG. 8 is a sectional view showing an embodiment of the present invention.

9 is a front view showing the test method of Example 1. FIG.

[Explanation of symbols]

 1 Aluminum plate 2 Double-sided adhesive tape 3 Sealant 4 Tiles

Claims (1)

[Claims] 1. A non-moisture permeable wall surface exposed to a humid environment is fixed and fixed with another molded body by using a double-sided adhesive tape, and the outer peripheral portion of the molded body is waterproofed by using a sealing material. A method for fixing a molded body to a characteristic wet surface.