KR20090033780A - Waterproof layer and waterproof method using a self-adhesion type composite sheet - Google Patents

Abstract

A self adhesive type adiabatic waterproof sheet and a waterproof method using the same are provided to reduce the Construction period, to save the energy and cost, and to improve durability of a building. A self adhesive type adiabatic waterproof sheet is composed of a self adhesive synthetic rubber layer formed at the uniform thickness more than 1.0mm, a functional film layer uniformly coated on the self adhesive synthetic rubber layer, and a composite adiabatic layer made of a non-woven fabric layer laminated on the functional film layer. A waterproof layer formation method is composed of steps for washing a concrete base material at the high pressure(S10), forming a primer layer(S30) in the concrete base material, forming a first adiabatic waterproof layer(S40) by adhering self adhesive type adiabatic waterproof sheets, and arranging a reinforcing sheet made of the self adhesive synthetic rubber layer in the joint.

Description

Self-adhesive insulation sheet and waterproof method {waterproof layer and waterproof method using a self-adhesion type composite sheet}

The present invention relates to a self-supporting insulating waterproof sheet and a waterproofing method using the same, and more particularly, by using a composite insulating layer having a surface-treated polyester nonwoven fabric layer and an aerogel-treated film layer. It relates to a self-supporting insulation waterproof sheet and a waterproof method using the same.

Recently, when the waterproof layer is only used as a coating waterproof agent, it takes a long time due to the divided coating, curing, etc. of the coating waterproof agent to form a waterproof layer of a predetermined thickness. It is formed by coating a coating film waterproofing agent such as urethane-based.

These waterproof layers are not only inconvenient to seal the joints between sheets by hand using a sealing material, heat seal, connecting material, tape or rivets, but also because the joints between sheets are bonded to dissimilar materials, so the leakage is poor. If a defect occurs or the waterproof layer does not conform to the base material and the base material cracks due to the stretching behavior of a large amount of water according to the change in the outside temperature, there is a problem of rupture or lifting.

In addition, such a waterproof layer has a problem that can not be in close contact with the bent portion, such as drain holes, through pipes, parapets (flexion portion), joints occupy more than 80% of the causes of leakage.

In addition, even if the waterproof is sure, the condensation caused by the temperature difference between the inside and outside of the mold can be contaminated and contaminated as a waterproof defect to reconstruct the waterproofing could be more problematic than the leak depending on the site situation.

In order to prevent this, insulation materials such as styrofoam and iso pink are separately disposed between the base layer and the waterproof layer, and thus, a separate construction process is required, and they are not well adapted to the base material because they are poor in elasticity and elongation. Not only the quality but also the thickness is inconvenient to construct, increase the load on the building, and rainwater flows into the gaps between them, resulting in many leaks, leakage, and mold.

In addition, the present invention has been made to solve such a problem, the object of the present invention can solve the problems of the conventional waterproof method at a time can be insulated construction and shorten the construction period, reducing the cost and energy And it provides an insulating waterproof sheet and a waterproof method using the same that can improve the durability of the building.

In addition, the object of the present invention is well broken, not flexible and elongation, the thickness is thick and well broken, difficult construction, as well as increase the load on the building and causing the problem of leakage through the gap between the base and waterproof layer It is to provide a heat insulating waterproof sheet and a waterproof method using the same that can solve the problem.

According to an embodiment of the present invention, the insulating waterproof sheet has a polyester nonwoven fabric layer formed by compressing and surface heat treatment to a predetermined thickness to form an air layer, and a lower portion of the composite insulation layer comprising a film layer integrated by laminating on at least one surface of the nonwoven fabric layer. Ethyl butyl rubber (IIR) as the main polymer to provide self-adhesiveness by uniformly coating a self-adhesive non-vulcanized synthetic rubber layer containing reinforcing filler anti-aging material, while impregnating an airgel powder on the non-woven fabric layer, or coating an airgel Or impregnating aluminum powder in the film layer or using the film layer as an airgel film to add heat insulation to provide composite insulation with the air layer of the nonwoven fabric layer, and further include a reinforcing sheet layer under the composite insulation layer. The thermal insulation elastic coating waterproofing material may be applied to the upper surface of the thermal insulation waterproof sheet once more.

According to one embodiment of the present invention, the construction of the insulation and waterproof at the same time to reduce the construction cost, shorten the construction period, and reduce the load on the building with a small thickness and load while providing a high insulation effect can reduce energy use and environmental Reduce pollution

In addition, according to an embodiment of the present invention, the self-adhesive heat-resistant waterproof sheet provides excellent heat insulation by the composite insulation layer and is well attached everywhere by the self-adhesive non-vulcanized synthetic rubber layer, and once more, the insulating film waterproofing agent is applied to the front surface. As a result, it is possible to obtain the effect of heat insulation, shock absorption, and condensation prevention at the same time.

According to one embodiment of the present invention, since the joints between sheets are made of the same material having good elasticity and elongation, there is no need to worry about leakage of the joints between sheets, and there is no need to seal the joints one by one. The working time can be much reduced compared to the conventional.

In addition, according to an embodiment of the present invention, regardless of the season can maintain a certain physical properties and strongly adhered to the base substrate to prevent the moisture from accumulating between the waterproof layer and the base substrate and excellent self-retainability, flexibility, elongation Precise construction of seat joints, drains, through pipes, and bends is possible.

 In addition, according to an embodiment of the present invention has elasticity and elongation that can be adapted to the behavior and cracks of the building structure, and can be easily repaired as well as stretched by using a self-adhesive insulation waterproof sheet that can be applied to the elastic insulating film waterproofing agent. Can be.

Hereinafter, a method of forming a waterproof layer and a waterproof layer using a self-supporting heat-insulating waterproof sheet according to an embodiment of the present invention will be described in detail.

 1 is a perspective view showing a partially cut waterproof layer using a self-adhesive insulation waterproof sheet according to an embodiment of the present invention, Figure 2 is an enlarged cross-sectional view for showing the configuration of the waterproof layer of Figure 1, Figure 3 is the present invention Flow chart illustrating a method of forming a waterproof layer according to an embodiment of.

1 to 3, the waterproof layer 1 according to an embodiment of the present invention is a high pressure washing or not clean up the concrete base substrate 10 (S10), the primer layer 30 on the base substrate 10 ) To form a primary heat insulating waterproof layer (S30), by making the plurality of self-supporting heat-insulating waterproof sheet 100 on the primer layer 30 to face each other (S40).

At this time, the reinforcing sheet made of the self-adhesive synthetic rubber layer 110 may be disposed in the joint (S35).

Self-supporting insulation waterproof sheet 100 according to an embodiment of the present invention is a self-synthesizing synthetic rubber layer 110 having a self-adhesion of a uniform thickness of 1.0mm or more, and the homogeneous coating on the self-adhesive synthetic rubber layer 110 And a composite heat insulating layer 101 made of a film layer 120 and a nonwoven layer 130 integrally laminated to the functional film layer.

In more detail, the self-adhesive synthetic rubber layer 110 is uniformly mixed with 18% by weight of unvulcanized butyl rubber, 10% by weight of carbon reinforcing agent, 1% by weight of plasticizer, 25% by weight of additives, and 46% by weight of heavy carbon filler. It is made by coating.

The filler may be selected from the group consisting of talc, carbon black, calcium carbonate, and mixtures thereof. The plasticizer may be used dioctylphthalate, dibutyl phthalate, diisononyl phthalate, citric acid ester, texanol / ester alcohol and the like, these may be used alone or in combination of one or more.

In addition, the additive may include rosin (rosin), stearic acid as a lubricant and these may be used alone or in combination of one or more.

The self-adhesive synthetic rubber layer 110 configured as described above is not sensitive to temperature change, has good weather resistance, strong adhesion to all kinds of base materials, and does not react with acid or alkali, and has good elasticity and elongation, so that the crack of the base material is not affected. It acts in accordance with its self-maintenance and can prevent breakage of the waterproof layer.

Therefore, the self-supporting insulation waterproof sheet 100 may be in close contact with the front surface of the concrete base material, so that water does not ride between the sheet and the base material, and the waterproof layer and the base material are not likely to lead to leaking unless a puncture or crack occurs together. Is reduced.

Even if perforation occurs, it is easy to repair because only the leaked part is covered with a sheet.

In addition, the functional film layer 120 is preferably composed of an environmentally friendly thermoplastic polyurethane (TPU) film layer to compensate for the elongation and tensile strength lacking only in the self-adhesive synthetic rubber layer 110, the crack behavior occurs in the base material In this case, it behaves like the base material at high elasticity and elongation to prevent breakage of the waterproof layer, protects the self-adhesive synthetic rubber layer 110 which is weak against ultraviolet rays, and can extend the waterproof life by more than five times the wear resistance and watertightness of the general film. have.

In addition to the thermoplastic polyurethane (TPU), the functional film layer 120 is a high density polyethylene (HDPE), ethylene vinyl acetate (EVA), polyvinyl chloride (PVC) and ethylene-propylene-diene copolymer (EPDM) film , Polyethylene film (PE), polyester film, polyethylene terephthalate (PET) film can be selected and used.

On the other hand, according to an embodiment of the present invention, the functional film layer 120 is made of two layers, the aluminum foil layer 121 roll-rolled between the two functional film layers may be interposed, The functional film layer 120 may include an airgel film 120 ′.

The aluminum foil layer 121 powders aluminum having excellent moisture resistance and corrosion resistance, mixes it with an adhesive, and coats the functional film layer 120 with a uniform thickness to block moisture, as well as its own heat reflection effect. Heat can be reflected and blocked, wherein the functional film layer 120 facilitates the coupling of the self-adhesive synthetic rubber layer 110 and the aluminum foil layer 121 to prevent moisture, UV blocking, and heat reflection. You can.

On the other hand, the airgel 120 'included in the functional film layer 120 dilutes methyl silicate, which is a raw material of silk, with methanol, and adds water to make a wet gel produced by hydrolysis condensation reaction in alcohol. It is a material made by daytime aging and supercritical drying. It is transparent, has a density of about 0.05 to 0.2 g, a porosity of 90 to 98%, a microporous material with a specific surface area of 500 to 1,000 m2 (per 1 g), and has a very high solar transmittance. It is good, and thermal conductivity is also 6 times or more than that of a normal heat insulating material.

 However, although the bending strength is lowered, the bonding property can be increased by disposing the airgel film layer 120 'by homogeneous coating on the self-adhesive synthetic rubber layer 110 by placing it between the two functional film layers 120. It can increase the elasticity and the bending strength.

On the other hand, the non-woven fabric layer 130 is 150 ~ 250g of heat-resistant polyester fiber having a melting point of about 170 ℃ or more and low-temperature molten fiber having a melting point of about 130 ℃, such as PP (polypropylene) or PE fibers 0 ~ 100g, up to 3 It can be formed in consideration of the thickness of the desired heat-insulating elastic film waterproofing agent layer 50 in a structure that is not separated from each other but entangled with each other like a net by mixing and laminating at a ratio of about 2 to.

The nonwoven fabric layer 130 prepared as described above may be formed in consideration of the thickness of the desired stationary air layer by compressing the surface by heat treatment, resin processing, or spraying a water repellent to finish the surface.

Therefore, shrinkage or deformation of the pore shape can be prevented, and the coating film waterproofing agent can be sufficiently impregnated. In addition, by preventing the raising of the surface of the nonwoven fabric layer 130, the coating film waterproofing agent and the nonwoven fabric fibers are entangled badly to generate unevenness, thereby deteriorating aesthetic appearance or falling off the uneven surface during walking to prevent damage to the waterproof layer.

The nonwoven fabric layer 130 may not only be impregnated with a coating material 140 capable of keeping the air layer fixed and blocking ultraviolet rays, but also protects the self-adhesive synthetic rubber layer 110 that is weak against ultraviolet rays and has a heat reflection or heat insulation function. Aluminum powder 140 ′ or airgel powder 140 may be impregnated to make it possible.

The impregnated aluminum powder (140 ') or aerogel powder (140) having excellent moisture resistance and corrosion resistance to the surface-treated nonwoven fabric layer 130 as described above provides a 4 to 5 times or more thermal insulation effect in a smaller volume than the existing waterproof or heat insulating material. It can provide waterproofing and insulation at one time, which can shorten the construction period, reduce cost and energy, and improve building durability.

That is, according to an embodiment of the present invention, the functional film layer 120 is composed of two layers, and the aluminum foil layer 121 or the airgel film layer 122 having good thermal insulation is interposed, or the nonwoven fabric layer 130 is provided. By impregnating the aluminum powder 140 ′ or the airgel powder 140 as a heat insulating coating material, the heat insulating property of the heat insulating waterproof sheet 100 together with the fixed air layer of the nonwoven fabric layer 130 may be increased.

The heat-insulating and waterproof sheet 100 configured as described above attaches a release paper layer 150 to the other surface of the self-adhesive synthetic rubber layer 110 to be easily transported to a predetermined place and to separate and use the release paper layer.

By laying the heat-insulating waterproof sheet 100 formed in this way and applying the elastic insulating film waterproofing agent once more on the nonwoven fabric layer 130, there is no step difference, and there is little change in physical properties due to rainfall, snowfall, wind, and freeze-thawing action. The waterproof layer can be formed. According to this, it is possible to provide not only waterproof but also adiabatic and shock absorbing effects.

The coating waterproof layer 50 is an inorganic elastic coating waterproofing material, cement-based polymer waterproofing material, urethane coating waterproofing material, tar urethane coating waterproofing material, exposed urethane coating waterproofing material, hydration reaction type urethane, one-component type urethane, high rigid urethane, And soft urethane waterproofing agents. Preferably, it is formed using an environmentally friendly inorganic elastic film waterproofing agent (S50).

Now with reference to Figures 4a and 4b briefly look at the configuration of the self-adhesive insulation waterproof sheet according to a modified embodiment of the present invention, with reference to Figures 5a to 5c used in the waterproof method according to a modified embodiment of the present invention The seamless coupling of the composite insulating waterproof sheet will now be described.

First, the self-supporting insulating waterproof sheet 100 ′ according to a modified embodiment of the present invention is a self-synthesizing composition as one end of the self-supporting insulating waterproof sheet 100 according to an embodiment of the present invention as the reinforcing sheet portion 103. Self-adhesive heat-resistant waterproof sheet 100 according to an embodiment of the present invention, except that it is made of only a rubber layer to reinforce the other end 101 at the joint between the two self-supporting heat-resistant waterproof sheet (100 시트) Since the same, detailed description will be omitted.

The self-supporting insulating waterproof sheet 100 ′ may further include a release paper layer 150 on an upper surface of the reinforcing sheet portion 103 to facilitate transportation and use at a predetermined place.

In addition, as shown in Figure 4b, the self-supporting heat-insulating waterproof sheet (100 변형) according to a modified embodiment of the present invention and the functional film layer 120 is interposed with the aluminum layer 121 or the airgel film layer 122 The composite insulating layer 101 and the self-adhesive synthetic rubber layer 110, which are integrally laminated with the nonwoven fabric layer 130, are disposed to be offset from each other, so that one end portion 105 is composed of the composite insulating layer 101 alone and the other end portion ( 103 ') may be composed of only the self-adhesive synthetic rubber layer (110).

The self-supporting insulating waterproof sheet 100〃 may further include a release paper layer on the top surface of the other end 103 'to facilitate transportation and use at a predetermined place.

That is, as shown in Figure 5a, the reinforcing sheet portion 103 of one of the self-supporting insulation waterproof sheet 100 'according to a modified embodiment of the present invention is different from the other self-supporting insulation waterproof sheet 100' The self-adhesive synthetic rubber layer 110 and the release paper layer 150 of the reinforcing sheet part 103 are separated and exposed by overlapping and simply pressing to reinforce the end 101 of the other self-supporting insulating waterproof sheet 100 ′. The self-adhesive synthetic rubber layer 110 may be integrally combined.

In addition, as shown in Figure 5b, by using the self-adhesive heat insulating waterproof sheet (100〃) according to a modified embodiment of the present invention, the airgel insulation film layer 120 and one of the self-supporting thermal insulation waterproof sheet (100〃) The one end portion 105 and the other end 103 'composed of the self-adhesive synthetic rubber layer 110 of the other self-adhesive heat-insulating waterproof sheet 100 으로 are integrally laminated with only the laminated nonwoven layer 130 so as to overlap each other. Can be. Accordingly, the plurality of self-supporting insulating waterproof sheets 100〃 may form a waterproof sheet layer without a step, and the joints of the plurality of self-supporting insulating waterproof sheets 100 (may not be exposed to the outside to reinforce the joint.

On the other hand, since the reinforcing sheet portion 103 has a high elasticity and high elongation, and closely coupled along the curved portion such as various joints, drains, through pipes, parapets, and the like, the self-supporting insulating waterproof sheet 100, 100 ′, 100 ″. ) Can be completely eliminated.

1 is a perspective view showing a partially cut waterproof layer using a self-supporting heat insulation waterproof sheet according to an embodiment of the present invention.

Figure 2 is an enlarged cross-sectional view for showing the configuration of the waterproof layer of Figure 1;

Figure 3 is a flow chart illustrating a method of forming a waterproof layer according to an embodiment of the present invention.

4A and 4B are cross-sectional views illustrating the structure of a self-supporting heat insulation waterproof sheet according to a modified embodiment of the present invention, respectively.

5A and 5B are schematic cross-sectional views for explaining a seamless coupling of a self-supporting insulation waterproof sheet used in a roof waterproofing method according to a modified embodiment of the present invention, respectively.

Claims (8)

A composite insulating layer comprising a polyester nonwoven fabric layer formed by compressing and surface-heating a predetermined thickness to form an air layer and a functional film layer integrated by laminating on at least one surface of the nonwoven fabric layer; It includes a self-adhesive non-vulcanized synthetic rubber layer containing butyl rubber (IIR) as a main polymer, uniformly coated on the lower portion of the composite insulation layer containing reinforcing filler anti-aging material, The functional film layer is at least two or more functional film layers, a heat insulating waterproof sheet coated with a heat insulation film layer between the at least two or more functional film layers. The method of claim 1, The heat insulation film layer is a heat insulation waterproof sheet of aluminum foil layer. The method of claim 1, The heat insulation film layer is a heat insulation waterproof sheet is an airgel film layer. The method of claim 1, The nonwoven fabric layer is a heat insulating waterproof sheet is mixed with aluminum powder and an adhesive homogeneously. The method of claim 1, The nonwoven fabric layer is a heat insulating waterproof sheet is uniformly coated with an airgel. The method according to any one of claims 2 to 5, The functional film layer is a thermoplastic polyurethane film (TPU), high density polyethylene (HDPE), polyethylene (LLD PE), ethylenevinyl acetate (EVA), polyvinylchloride (PVC) and ethylene-propylene-diene copolymer (EPDM) film , Polyethylene terephthalate (PET) film from the group consisting of one or more selected heat-resistant waterproof sheet. The method of claim 6, The nonwoven fabric layer includes inorganic elastic coating waterproofing material, cement mixed polymer waterproofing material, urethane coating waterproofing material, tar urethane coating waterproofing material, and exposed urethane coating waterproofing material, hydration reaction type urethane, one-liquid urethane, hard urethane, soft urethane waterproofing agent. Insulating waterproof sheet is impregnated with a coating waterproofing agent selected from the group consisting of. Performing the grounding of the base material; Applying a primer on the base substrate; Constructing a reinforcing sheet of a self-adhesive non-vulcanized synthetic rubber layer containing butyl rubber (IIR) as a main polymer at a predetermined position and containing an anti-aging material for reinforcing material; Forming a primary waterproofing layer by applying the self-supporting insulating waterproof sheet according to at least one of claims 1 to 7 on the entire base substrate; Forming a secondary coating waterproof layer seamlessly by applying an elastic insulating film waterproofing material on the self-supporting insulating waterproof sheet.

Images