KR100940311B1 - Self-adhesion type waterproof sheet and waterproof method using the same - Google Patents

Abstract

PURPOSE: A self-adhesion type waterproof sheet and a waterproof method using the same are provided to help a layman to able to construe by making the construe procedure easy. CONSTITUTION: A self-adhesion type waterproof sheet comprises butyle synthetic rubber layers(10,10'), functional medium layers(20,20'), and film layers(30,30') and a cutting groove. The butyle synthetic rubber layer is the sheet form. A fixed spacing(11) is formed on top of the butyle synthetic rubber layer at a regular interval. A first releasing layer(20a) is formed on the bottom so that the functional medium layers are separated from the butyle synthetic rubber layers. The film layer is attached in order not to separate on top of the functional medium layer. The cutting groove is formed on the film layer which is close with the edge of the functional medium layer.

Description

Self-adhesion type waterproof sheet and waterproof method using the same}

The present invention relates to a self-supporting waterproof sheet for waterproofing a building structure or a civil engineering structure and a waterproof construction method using the same.

In general, a building made of reinforced concrete may age the building when rainwater penetrates into the building. Therefore, in order to prevent rain water and the like, the waterproof layer is coated on the roof of the building by applying a waterproof layer made of an asphalt-based sheet or a synthetic polymer sheet or a coating waterproofing material such as rubber asphalt, acrylic, polyurethane, or the like.

However, when the waterproofing layer is constructed with a waterproof sheet, there is an inconvenience of sealing the joints between sheets by hand using a sealing material, a heat seal, a connecting material, a tape, or a rivet, and joining the joints between sheets with heterogeneous materials. Because of this, after a long time there is a problem that the sheet is broken and leaking defects occur.

In addition, in the case of forming the waterproof layer by applying the coating waterproofing material, curing after applying the primer for about 2 hours or more, two times divided coating of the waterproofing agent, then two times curing for about 24 hours or more, and top-coat material is applied, There was a problem that it takes at least 4 days or more to form a waterproof layer, such as curing over 24 hours.

Therefore, in order to solve this problem, a method of forming a double waterproof layer by combining a waterproof sheet and a waterproof film has been developed in recent years.

However, this method still needs to combine seams between sheets using heterogeneous materials, so that the seams are destroyed over time, and water penetrates through the gaps formed between the seams. .

The present invention has been created to solve the above problems, it can be easily installed at room temperature without using a separate tool, it is possible to ensure that the seam is not destroyed even over time, furthermore the seam construction It is an object of the present invention to provide a self-supporting waterproof sheet and a waterproof construction method using the same.

In order to achieve the above object, the self-adhesive waterproof sheet according to the present invention,

Butyl synthetic rubber layer (10) of the sheet form; A plurality of functional mediators are attached to the upper portion of the butyl synthetic rubber layer 10 so as to form a predetermined gap portion 11, and the first release layer 20a is formed on the bottom surface of the butyl synthetic rubber layer 10 so as to be separated from the butyl synthetic rubber layer 10. Layer 20; A film layer 30 attached to the functional medium layer 20 and the spacer 11 so as not to be separated; And a cutting groove 31 formed in the film layer 30 in contact with the edge of the functional mediating layer 20, and formed along the functional mediating layer 20.
In the present invention, a second release layer 40 is formed on the film layer 30.

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In the present invention, the butyl synthetic rubber layer 10, based on 100 parts by weight of butyl rubber, 500 to 1500 parts by weight of calcium carbonate, 10 to 100 parts by weight of rubber resin, 200 to 600 parts by weight of polybdenum.

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In the present invention, the functional medium layer 20, the non-woven fabric is embedded, a flame retardant is contained, a glass fiber woven fabric, a copper foil is attached, a heat insulating material is contained, or an aluminum foil is attached to the structure.

In order to achieve the above object, the waterproof construction method using a self-adhesive waterproof sheet according to the present invention, the sheet-like butyl synthetic rubber layer (10) (10 '); The butyl synthetic rubber layers 10, 10 'is attached to form a predetermined interval portion (11, 11') on the top, the butyl synthetic rubber layer (10) (10 ') so as to be separated from the bottom surface A functional mediated layer 20 (20 ') on which the release layers 20a (20a') are formed; A film layer (30) (30 ') attached so as not to be separated on top of the functional mediating layer (20) (20') and the spacer (11) (11 '); First and second self-adhesive waterproof sheets, each of which is formed in the film layer 30 in contact with the edge of the functional mediating layer 20, the cutting groove 31 formed along the functional mediating layer 20; 100) (100 '), the first sheet construction step (S2) for attaching the butyl synthetic rubber layer 10 of the first self-adhesive waterproof sheet 100 to the bottom surface (C) upper surface; A second attaching the butyl synthetic rubber layer (10 ') to the bottom surface (C) so that one side of the second self-adhesive waterproof sheet (100') is superimposed on the upper side of the first self-adhesive waterproof sheet (100). Seat construction step (S4); In the first self-adhesive waterproof sheet, the function of separating from the butyl synthetic rubber layer 10 by the operation of pulling the functional media layer 20 corresponding to the portion overlapping with the second self-adhesive waterproof sheet (100 '). An intermediate layer separation step (S5); It characterized in that it comprises a; pressing step (S6) against the bottom surface (10a ') of the second self-adhesive waterproof sheet against the seam attachment surface (15).

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In the present invention, it is carried out after the first sheet construction step (S2), on the side bottom surface (C) of the first self-adhesive waterproof sheet 100, a primer along the butyl synthetic rubber layer (10) (50) further comprises a primer coating step (S3).

According to the self-adhesive waterproof sheet and the waterproof construction method using the same according to the present invention, the construction can be easily performed at room temperature without using a separate tool, and the seam is not destroyed even after time. Furthermore, the seam construction of the waterproof sheet and other waterproof sheets is very easy, so that even an inexperienced person can easily do it.

Hereinafter, the self-adhesive waterproof sheet and the waterproof construction method using the same will be described with reference to the accompanying drawings.

1 is a perspective view of a roll-shaped self-adhesive waterproof sheet according to the present invention, Figure 2 is a view for explaining the detailed configuration of the self-adhesive waterproof sheet of Figure 1, Figure 3 illustrates the functional media layer of Figure 2 It is a figure for the following, FIG. 4 is a figure for demonstrating the film layer of FIG.

As shown, the self-adhesive waterproof sheet according to the present invention, the sheet-like butyl synthetic rubber layer 10; A plurality of functional mediation layers are attached to the upper portion of the butyl synthetic rubber layer 10, the first release layer (20a) is formed on the bottom surface to be separated from the butyl synthetic rubber layer (10) 20; It includes; a film layer 30 is attached so as not to be separated on the upper portion of the functional mediated layer 20 and the spacer portion (11). At this time, as shown in Figure 2, it is preferable that the second release layer 40 is formed on the upper surface of the film layer 30, in this case rolled the self-adhesive waterproof sheet of the present application in a roll so as not to use a release paper Can be distributed.

The butyl synthetic rubber layer 10 includes 500 to 1500 parts by weight of calcium carbonate, 10 to 100 parts by weight of rubber resin, and 200 to 600 parts by weight of polybdenum based on 100 parts by weight of butyl rubber (including recycled butyl).

Butyl rubber is an inert waterproofing material having a long chain structure by hybridizing a small amount of isoprene in isobutylene (for example, 1.5-5%).

Formula 1

Butyl rubber as synthetic rubber has low permeability to gas and water, and thus has proper performance as a waterproofing material. Butyl rubber is 7-8 times or more in air resistance and 10 times or more in water permeability compared to natural rubber or styrene butadiene rubber. Butyl rubber has a linear molecular structure, less double bonds, and nonpolarity than other rubbers, so it has low affinity with water, oxygen, low solubility, and relatively low diffusion rate in these molecules. Therefore, butyl rubber has superior air permeability than other rubbers.

In addition, the content of isoprene having a double bond in butyl rubber is about 2% in commercial products, which is lower than in other rubbers (usually tens or more). Therefore, butyl rubber is resistant to attack of oxygen and ozone, has aging characteristics, and exhibits resistance to thin natural acids and alkalis, and has fire resistance.

Calcium carbonate is for imparting flame retardancy to the butyl synthetic rubber layer 10 of the present application. Such calcium carbonate includes 500 to 1500 parts by weight of calcium carbonate, and in this embodiment includes 1000 parts by weight. If the butyl synthetic rubber layer 10 contains 500 parts by weight or less of calcium carbonate, it is difficult to expect the flame retardancy of the butyl synthetic rubber layer 10, and if more than 1500 parts by weight is included, the elasticity of the butyl synthetic rubber layer 10 is expected. it's difficult.

The resin is for imparting durability to the butyl synthetic rubber layer 10 of the present application. Such rubber resin includes 10 to 100 parts by weight, and in this embodiment, 20 parts by weight. If the butyl synthetic rubber layer 10 contains 10 parts by weight or less of rubber resin, it is difficult to expect sufficient elasticity of the butyl synthetic rubber layer 10, and if it is 100 parts by weight or more, durability is not expected.

Polybutene (polyisobutene) is for providing adhesiveness to the butyl synthetic rubber layer 10 and improving plasticity. Such polybutene includes 200 to 600 parts by weight, and in this embodiment includes 300 parts by weight. If the polybutene is included in the butyl synthetic rubber layer 10 out of 200 to 600 parts by weight, it is difficult to expect the tackiness of the butyl synthetic rubber layer 10.

Polybutene is a nonpolar hydrocarbon polymer and is compatible with butyl rubber used as the main material. In addition, polybutene increases the melt index to facilitate processing, and improves low temperature flexibility, flexibility and cold resistance to prevent breakage at low temperatures below -30 degrees Celsius, the usage limit of butyl rubber.

As described above, the butyl synthetic rubber layer 10 has the chemical composition as described above, and is excellent in elasticity and adhesiveness, and can be integrated without a separate adhesive due to the self-adhesive property at the time of adhesive connection between the sheet and the rubber itself. It is soundproof and dustproof and can be used as a waterproofing material and a coating material.

The functional medium layer 20 is for imparting functionality to the self-adhesive waterproof sheet of the present application, and can provide various functionalities depending on the material and structure to be employed.

The functional functional media layer 20 may be implemented in a structure in which a nonwoven fabric is embedded to improve durability or prevent expansion. In addition, the functional media layer 20 may contain a flame retardant material or glass fiber woven fabric to increase the flame retardancy. In addition, the functional medium layer 20 may be a structure in which copper is coated or copper foil is attached to block the water wave. In addition, the functional media layer 20 may be implemented as a structure containing a heat insulating material for insulation, a sponge material formed with pores, or an aluminum foil is attached to reflect infrared rays. In the present embodiment, the functional mediating layer 20 is described as having a nonwoven fabric 21 embedded therein. As such, by selecting the functional mediating layer 20 having various functions, various functionalities can be imparted to the waterproof sheet of the present application.

As shown in FIG. 4, the film layer 30 is formed of a high-density polyethylene layer and is not separated from and adhered to the gap 11 and the functional media layer 20 of the butyl synthetic rubber layer 10, and butyl synthetic. The strength of the rubber layer 10 is reinforced and the shock is alleviated. That is, since the film layer 30 is not separated from the gap portion 11 and the functional mediating layer 20, even if the butyl synthetic rubber layer 10 swells due to water vapor, the expansion of the butyl synthetic rubber layer 10 is maximized. Suppress

On the other hand, in the film layer 30, the cutting groove 31 is formed along the functional media layer 20 in the portion in contact with the edge of the functional media layer 20. The cutting groove 31 is for easily separating the functional mediating layer 20 from the butyl synthetic rubber layer 10 without using a cutter. By forming such a cutting groove 31, the functional mediating layer 20 of the portion corresponding to the seam can be easily separated and removed.

The second release layer 40 allows the self-adhesive waterproof sheet of the present application to be rolled up and distributed in a roll form. That is, when the self-adhesive waterproof sheet of the present invention is rolled, as shown in FIG. 1, the bottom surface 10a of the butyl synthetic rubber layer 10 is the second release layer 40 of the upper surface of the film layer 30. ), The butyl synthetic rubber layer 10 can be easily separated from the film layer 30 when the self-adhesive waterproof sheet is unfolded.

Generally, in order to roll up the waterproof sheet in a rolled form, a release sheet is attached to the lower surface of the waterproof sheet. When the waterproof sheet is constructed, the release paper is separated from the lower surface of the waterproof sheet, and the separated release paper is disposed of. At this time, the release paper is usually implemented by applying a silicone resin emulsion after surface treatment of one side of the kraft paper, such a release paper is quite expensive.

The present application may exclude the use of the release paper by forming a release layer on the upper surface of the film layer 30, which may be a factor in achieving cost reduction. In addition, it is possible to prevent the environment from being polluted during the disposal of the separated release paper, and to prevent waste of resources.

Next, the waterproof construction method that is easy to seam joint using a self-adhesive waterproof sheet will be described.

5 to 8 is a view for explaining the construction method using the self-adhesive waterproof sheet of FIG.

As shown, the waterproof construction method according to the present invention, the waterproof sheet described above, that is, the butyl synthetic rubber layer (10) (10 ') of the sheet form; The butyl synthetic rubber layer 10, 10 'is attached to form a predetermined interval portion (11, 11') on the top, the first surface on the bottom to be separated from the butyl synthetic rubber layer (10, 10 ') A plurality of functional mediated layers 20 and 20 'formed with release layers 20a and 20a'; First and second self-adhesive waterproof sheets, each comprising a film layer 30, 30 'attached to the functional media layer 20, 20' and the spacer 11, 11 'so as not to be separated. 100 and 100 'are used. In the present embodiment, the first waterproof sheet is defined as the first self-adhesive waterproof sheet 100 and the second waterproof sheet is defined as the second self-contained waterproof sheet 100 'for the purpose of explanation, and the edge of the functional media layer 20 is described. Cutting grooves 31 are formed in the film layer 30 in contact with the functional mediating layer 20.

First, the floor surface cleaning step (S1) to clean up the floor (C), such as concrete. The bottom surface cleaning step S1 removes foreign substances from the bottom surface C so that the butyl synthetic rubber layers 10 and 10 'may be attached with strong adhesive force.

Next, the first sheet construction step (S2) of attaching the butyl synthetic rubber layer 10 of the first self-adhesive waterproof sheet 100 to the bottom surface C is performed. At this time, the butyl synthetic rubber layer 10 is attached to the bottom surface C1 without using a hot air blower and an adhesive by its adhesive force.

Next, as shown in Figure 5, the primer coating step (S3) for applying the primer 50 along the butyl synthetic rubber layer 10 on the side bottom surface (C) of the first self-adhesive waterproof sheet 100 Perform The primer 50 is for more firmly attaching the joint portion where the first self-adhesive waterproof sheet 100 and the second self-adhesive waterproof sheet 100 'to be described later to the bottom surface (C).

Next, as shown in FIG. 6, one side of the second self-adhesive waterproof sheet 100 ′ overlaps the upper side of the first self-adhesive waterproof sheet 100, and the butyl synthetic rubber layer 10 on the bottom surface C. ') Attaching the second sheet construction step (S4) is performed. At this time, the butyl synthetic rubber layer 10 ′ except for the portion overlapped on the upper portion of the first self-adhesive waterproof sheet 100 is attached to the bottom surface C1 by its adhesive force.

Next, as illustrated in FIG. 7, in the first self-adhesive waterproof sheet, the functional medium layer separation step of separating the functional media layer 20 corresponding to the portion overlapped with the second self-adhesive waterproof sheet 100 ′ (S5). ).

At this time, since the cutting groove 31 is formed in the film layer 30 in contact with the functional mediating layer 20, the functional mediating layer 20 by the operation of pulling the functional mediating layer 20 is a butyl synthetic rubber layer ( 10) easily separated. When the functional mediating layer 20 is separated in this way, the joint attachment surface 15 is exposed on the butyl synthetic rubber layer 10.

Next, the pressing step (S6) of pressing the bottom surface (10a ') of the second self-adhesive waterproof sheet against the joint surface (15). This pressing step (S6) may use a foot or hand, and through this pressing step (S6) the seam is completely connected. At this time, since the first and second self-supporting waterproof sheet is made of the same butyl synthetic rubber, it is not separated once connected.

Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom.

1 is a perspective view of a roll-shaped self-adhesive waterproof sheet according to the present invention;

Figure 2 is a view for explaining the detailed configuration of the self-adhesive waterproof sheet of Figure 1,

3 is a view for explaining the functional media layer of FIG.

4 is a view for explaining the film layer of FIG.

5 to 8 is a view for explaining the construction method using the self-adhesive waterproof sheet of FIG.

<Description of the symbols for the main parts of the drawings>

10, 10 '... Butyl synthetic rubber layer

11 11 '... clearance

20, 20 '... functional layer

20a ... first release layer

30, 30 '... film layer

40 ... second release layer

Claims (8)

Butyl synthetic rubber layer (10) of the sheet form; A plurality of functional mediators are attached to the upper portion of the butyl synthetic rubber layer 10 so as to form a predetermined gap portion 11, and the first release layer 20a is formed on the bottom surface thereof so as to be separated from the butyl synthetic rubber layer 10. Layer 20; A film layer 30 attached to the functional medium layer 20 and the spacer 11 so as not to be separated; Self-adhesive waterproof sheet, characterized in that it comprises a; cutting groove 31 formed along the functional media layer (20) formed in contact with the edge of the functional media layer (20). The method of claim 1, Self-adhesive waterproof sheet, characterized in that the second release layer 40 is formed on the film layer 30. delete The method of claim 1, The butyl synthetic rubber layer 10, based on 100 parts by weight of butyl rubber, 500 to 1500 parts by weight of calcium carbonate, rubber resin 10 to 100 parts by weight, characterized in that it comprises 200 to 600 parts by weight of polybdenum Waterproof sheet. The method of claim 1, wherein the functional mediated layer 20, Self-contained waterproof sheet, characterized in that the non-woven fabric, a flame retardant is contained, a glass fiber woven fabric, a copper foil is attached, a heat insulating material is contained, or an aluminum foil is attached. Butyl synthetic rubber layer (10) (10 ') of the sheet form; The butyl synthetic rubber layers 10, 10 'is attached to form a predetermined interval portion (11, 11') on the top, the butyl synthetic rubber layer (10) (10 ') so as to be separated from the bottom surface A functional mediated layer 20 (20 ') on which the release layers 20a (20a') are formed; A film layer (30) (30 ') attached so as not to be separated on top of the functional mediating layer (20) (20') and the spacer (11) (11 '); First and second self-adhesive waterproof sheets, each of which is formed in the film layer 30 in contact with the edge of the functional mediating layer 20, the cutting groove 31 formed along the functional mediating layer 20; Using 100) (100 '), A first sheet construction step S2 of attaching the butyl synthetic rubber layer 10 of the first self-adhesive waterproof sheet 100 to the bottom surface C; A second attaching the butyl synthetic rubber layer (10 ') to the bottom surface (C) so that one side of the second self-adhesive waterproof sheet (100') is superimposed on the upper side of the first self-adhesive waterproof sheet (100). Seat construction step (S4); In the first self-adhesive waterproof sheet, the function of separating from the butyl synthetic rubber layer 10 by the operation of pulling the functional media layer 20 corresponding to the portion overlapping with the second self-adhesive waterproof sheet (100 '). An intermediate layer separation step (S5); Pressing step (S6) pressing the bottom surface (10a ') of the second self-adhesive waterproof sheet against the joint surface (15); Waterproof construction method using a self-adhesive waterproof sheet comprising a. delete The method of claim 6, The primer 50 is applied along the butyl synthetic rubber layer 10 on the side bottom surface C of the first self-adhesive waterproof sheet 100, which is performed after the first sheet construction step S2. Waterproof construction method using a self-adhesive waterproof sheet, characterized in that it further comprises a primer coating step (S3).

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