KR20130088603A - Structure for complex heat insulator waterproof using rubber asphalt sheet and complex textile fabrics and method for manufacturing the same - Google Patents

Abstract

PURPOSE: A heat-resistance composite waterproofing sheet structure and a heat resistance composite waterproofing sheet method using a rubber asphalt sheet and a mixed fiber fabric are provided to improve the heat resistance and the weather resistance of the composite waterproofing sheet, thereby increasing waterproofing lifetime and reducing expenses for cooling and heating a building. CONSTITUTION: A heat-resistance composite waterproofing sheet structure includes a heat resistant layer, a composite waterproofing sheet layer (300), and an acryl group inorganic material film coating agent. The composite waterproofing sheet layer includes an asphalt sheet (310), a nonwoven fabric (320), an inorganic material film elastic adhesive (330), a glass fiber reinforcing fabric sheet (340), and a composite fiber sheet (350). The heat resistant layer includes at least one among compressed styrene foam, an insulating nonwoven fabric, urethane foam, and a plastic corrugated board, a heat reflective insulating material, and a P.E. foam insulating material.

Description

Structure for complex heat insulator waterproof using rubber asphalt sheet and complex textile fabrics and method for manufacturing the same}

The present invention relates to a heat shield composite waterproof sheet structure and a heat shield composite waterproof sheet method, and more specifically, it is possible to waterproof and heat shielded buildings using rubberized asphalt sheets and mixed fiber fabrics, which can reduce heating and winter heating costs in summer. It relates to a heat shield composite waterproof sheet structure and a heat shield composite waterproof sheet method.

Exposed rubberized asphalt sheet waterproofing, which is one of the typical waterproofing methods, suffers from problems such as splitting and opening at the interconnects and parapets between sheets due to loss of elasticity and stiffness due to repeated shrinkage and expansion due to temperature change. . In addition, since the joint is heated by heat to melt and attached by heat, it is difficult to uniformly attach due to non-uniform heating, and in this case, leakage occurs due to less adhesion.

In addition, in summer, not only the surface of rubberized asphalt sheet is directly exposed to hot solar heat, but when the rooftop surface is heated by solar heat, radiant heat is generated to generate gas under the rubberized asphalt sheet layer, and the sheet layer is deformed and excited by heat. This leads to an overall defect.

Accordingly, there is a need for a waterproof sheet that can solve gas generation, swelling, and deformation defects caused by solar heat and rooftop radiation, which are fundamental problems of waterproofing rubberized asphalt waterproof sheets.

Korea Patent Registration No. 10-0968714 (Registration Date 2010.06.30)

The present invention has been proposed to solve the above problems, the object of the present invention is the heat-resistant composite waterproof using a rubberized asphalt sheet and mixed fiber fabrics that can reduce the summer cooling and winter heating costs by building waterproofing and heat shielding It is to provide a sheet structure and heat shield composite waterproof sheet method.

Another object of the present invention is a heat shield composite waterproof sheet structure and heat shield composite using rubberized asphalt sheets and mixed fiber fabrics that can solve the flaws generated in the gas generation and swelling, deformation, joints and parapets due to solar heat and rooftop radiation It is to provide a waterproof sheet method.

Another object of the present invention is to provide a heat shield composite waterproof sheet structure and a heat shield composite waterproof sheet method using a rubberized asphalt sheet and a mixed fiber fabric which can increase heat resistance and weather resistance and increase waterproof life.

In order to achieve the above object, the asphalt heat shield composite waterproof sheet structure according to an aspect of the present invention includes a heat shield layer, a composite waterproof sheet layer, an acrylic inorganic coating film coating.

Asphalt heat shield composite waterproof sheet structure according to the present invention, the composite waterproof sheet layer includes rubberized asphalt sheet, nonwoven fabric, inorganic coating elastic adhesive, glass fiber reinforced fabric sheet, and mixed fiber sheet.

According to an additional aspect of the present invention, a heat shield composite sheet waterproofing method includes laminating a heat shield layer on a base surface, and a rubberized asphalt sheet, a nonwoven fabric, an inorganic film elastic adhesive, a glass fiber reinforced fabric sheet, and a sheet on a heat shield layer. Laminating a plurality of composite waterproof sheet layers including the mixed fiber sheet having the joining protrusions, and applying a solvent-free urethane adhesive to the sheet joining protrusions of the plurality of composite waterproof sheet layers and adhering the plurality of composite waterproof sheet layers. And, it comprises a step of constructing an acrylic inorganic coating film coating on the upper surface of the plurality of composite waterproof sheet layer.

As described above, the heat shield composite waterproof sheet structure and the heat shield composite waterproof sheet method using the rubberized asphalt sheet and the mixed fiber fabric according to the present invention can be expected the following effects.

First, it can be installed in a minimum process step, it is formed in a structure that does not occur inherently peeling accident between the waterproof layer, there is an advantage that there is no fear that the waterproof layer is broken by the impact even after construction.

Second, because the acrylic inorganic coating coating layer and the heat shield layer protect the composite waterproof sheet from solar heat and rooftop radiation heat, it increases the heat resistance and weather resistance of the composite waterproof sheet, increases the waterproof life and reduces the heating and cooling costs of the building.

Third, when constructing a composite waterproof sheet, the joints generated while facing each other in abutment against each other are covered with a sheet bonding protrusion which protrudes from 10 to 15 cm on one sheet, and then bonded with a solvent-free urethane adhesive. It is possible to fundamentally prevent the occurrence of defects due to the joining of the joint and the parapet part by winding up the projection for sheet joining and bonding with a solvent-free urethane adhesive.

Fourth, since the base surface and the waterproof sheet is not in close contact with the insulating method, the waterproof layer does not break even when the concrete sphere on the base surface cracks, and the sheet waterproofing does not inflate.

Fifth, since the factory-standard composite sheet waterproofing material is used, no skill is required in construction, and the air shortening and construction cost can be reduced.

Sixth, the nonwoven fabric layer, glass fiber reinforced fabric sheet and mixed fabric sheet attached to the rubberized asphalt sheet using the inorganic coating elastic adhesive reinforces the rubberized asphalt sheet, and 1 to 3 with acrylic inorganic coating on the mixed fabric sheet. Because of the application of ash finish, the rubberized asphalt sheet has sufficient strength to cope with the problem of natural deformation due to heat or ultraviolet rays.

In addition, it is an environmentally friendly dry waterproofing method that does not use organic solvents that are harmful to the human body.There is no material that can melt asphalt sheets because organic solvents are not used.Therefore, there is no room for problems in the process, and excellent tensile strength and durability. It has a useful effect that it can be easily constructed using a composite sheet waterproofing material having excellent elasticity after walking due to elasticity.

1 is a structural diagram of a heat shield composite waterproof sheet structure according to an embodiment of the present invention,
Figure 2 is an exemplary view of a composite waterproof sheet layer configured in a heat shield composite waterproof sheet structure according to an embodiment of the present invention,
Figure 3 is a structural diagram showing the joining of the joints of the composite waterproof sheet (300-1, 300-2) using the sheet bonding tape 352 according to an embodiment of the present invention
Figure 4 is a flow chart illustrating a heat shield composite waterproof sheet method using a rubberized asphalt sheet and a mixed fiber fabric according to an embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and how to accomplish them, will become apparent by reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout.

Hereinafter, with reference to the accompanying drawings showing a preferred embodiment of the present invention will be described in more detail.

1 is a structural diagram of a heat shield composite waterproof sheet structure using a heat shield layer, a composite waterproof sheet layer and an acrylic inorganic coating film according to an embodiment of the present invention, Figure 2 is a composite waterproof sheet constituting a heat shield composite waterproof sheet structure Show the floor.

The heat shield composite waterproof sheet structure according to the present invention has a structure in which the heat shield layer 200, the composite waterproof sheet layer 300, and the acrylic inorganic coating film 400 are sequentially stacked on the base surface 100.

The heat shield layer 200 includes at least one of compressed styrene foam, thermal insulation nonwoven fabric, urethane foam, plastic corrugated cardboard, heat reflection insulation, and PE foam insulation, and has a thermal conductivity of 0.042 W / mk or less. It is preferable that the thickness is 5 mm or more.

Composite waterproof sheet layer 300, as shown in Figure 2, rubberized asphalt sheet 310, nonwoven fabric 320, inorganic coating elastic adhesive 330, glass fiber reinforced fabric sheet 340, mixed fiber sheet ( 350).

The rubberized asphalt sheet 310 in the composite waterproof sheet layer 300 has a length and width of about 10m x 1m per roll and can be manufactured as a standard product in the manufacturing plant so that the nonwoven fabric 320 is laminated thereon. The rubberized asphalt sheet 310 is provided with a thickness of 2-3mm.

The nonwoven fabric 320 provides bonding strength to each other to bond the rubberized asphalt sheet 310 and the glass fiber reinforced fabric sheet 340 with the inorganic coating elastic adhesive 330, and has a weight of 100 to 250 g / m 2. Have The nonwoven fabric 320 is laminated on the upper surface of the rubberized asphalt sheet 310, and is implemented by any one selected from a polypropylene nonwoven fabric, a polyethylene terephthalate nonwoven fabric, and a polyethylene nonwoven fabric.

The inorganic coating elastic adhesive 330 is applied to bond the nonwoven fabric 320 and the glass fiber reinforced fabric sheet 340 and the mixed fiber sheet 350 which are laminated on the rubberized asphalt sheet 310 as , 40 to 45% of acrylic emulsion, 25 to 40% of cement, 10 to 20% of silica sand 8, 5 to 10% of water, 4 to 8% of additives, and the coating weight is 300 to 500 g / m2. do.

The mixed fiber sheet 350 is laminated on the glass fiber reinforced fabric sheet 340 by using an inorganic coating elastic adhesive 330, and is 60 to 80% polyester and 20 to 40% cotton. If the weight of the 350 is less than 250g / m 2, the strength is too weak, and if it is more than 400g, the cost rises and is not practical, so the weight of the mixed fiber sheet is preferably 250-400g / m 2.

When laminating and bonding the mixed fiber sheet 350 using the inorganic film-elastic adhesive 330 on the glass fiber reinforced fabric sheet 340, one end of the glass fiber reinforced fabric sheet 340 and the end as shown in FIG. On the other hand, the other side of the fiberglass reinforcing fabric sheet 340 has a length of more than 10 to 15cm to come out so that the protrusion 351 for sheet bonding is formed. When it is installed in the field, the sheet bonding protrusions 351 attached to one side of the composite waterproof sheet layer 300 cover the opposite side without the sheet bonding protrusions 351 in another adjacent composite waterproof sheet layer 300. This is to allow the adhesive finish treatment with a solvent-free urethane adhesive (360). In addition, it is to wrap the projection 351 for joining the parapet portion of the roof top edge with a solvent-free urethane adhesive 360 to be finished.

The solvent-free urethane adhesive 360 not only makes the rubberized asphalt sheet 310 and the mixed fiber sheet 350 and the parapet and the mixed fiber sheet 350 strongly adhere to each other, but also has elasticity, strength, water resistance, and chemical resistance. Excellent resistance to other salts, chemical vapors (acid or alkali), moisture, etc. In addition, the solvent-free urethane adhesive 360 is a solvent-based paint without using heavy metals such as dioctylphthalate (DOP) and lead (Pb) and organic solvents (Xylene, thinner, etc.), which are limited in use due to environmental hormone problems. It has the advantage of having similar physical properties.

Solvent-free urethane adhesive 360 is a two-component reactive curing type waterproofing agent composed of a main agent and a curing agent, and is a branched polyether to polyester polyol, a filler, a diluent, and a leveling agent. ), A dehumidifying agent (humidity scavenger), an antifoaming agent (air release), a sunscreen (ultravioletshielding) comprising a subject comprising at least one, and 50 to 100 parts by weight of the curing agent of the diisocyanate compound relative to 100 parts by weight of the subject It features.

Table 1 below is a table briefly showing the composition and content of the solvent-free urethane adhesive.

division Composition content Suzy Branched Polyether-Polyester Polyols 35 to 55 parts by weight Filler Calcium carbonate, barium sulfate 45 to 70 parts by weight diluent Fatty acid ester compound 1 to 10 parts by weight Antifoam Silicone oil 0.1 to 2 parts by weight Leveling agent Acrylic Copolymer 0.1 to 3 parts by weight Desiccant Zeolite 1.0 to 10 parts by weight

Looking at the composition of the composition as described above, first, the main resin (resin) is environmentally friendly and low viscosity branched polyether to polyester polyol (branched polyether) than conventional polyurethane resin containing the environmentally hazardous substance DOP ~ Polyester polyol) is preferably used 35 to 55 parts by weight.

Next, a filler is added to supplement the properties of the raw materials or products and to reduce the material cost. The filler is any one of talc, quartz powder, calcium carbonate, barium sulfate, and the like. Optionally add one or more.

As described above, even if one or more selected fillers are added, there is no significant problem in the physical properties, and the added ratio is preferably 45 to 70 parts by weight. This is because the physical properties may be lowered when added above the content, and when the amount is added below the content, the amount of branched polyether to polyester polyol is increased, thereby increasing the production cost of the product. It may cause some property degradation such as wear resistance.

Anti-foaming agent (air release) is to suppress the generation of bubbles and to remove the bubbles inside and outside the formed film is a silicone oil (silicone oil) is used and the addition rate is preferably added 0.1 to 2 parts by weight because It is because there exists a possibility that adhesive force may fall when it adds more than a ratio.

As a leveling agent added to maintain the self-leveling of the solvent-free urethane adhesive (acryl copolymer) is used, the addition rate is preferably added to 0.1 to 3 parts by weight. This is because when the additive is not added, the marks of the roller or the brush may remain on the construction surface during construction.

In the present invention, a fatty acid ester is obtained by esterifying fatty acids extracted from vegetable raw materials to supplement the problems of the conventional solvent-type urethane adhesive to which DOP and solvent are added, and to have properties similar to those of the conventional solvent-type urethane adhesive. Added as diluent. The fatty acid ester compound serves to lower the viscosity as a vegetable fatty acid, the ratio is preferably added to 1 to 10 parts by weight.

In order to remove moisture of the main ingredient, 1 to 10 parts by weight of zeolite powder is added as a humidity scavenger. The reason why the dehumidifying agent is added is that when the dehumidifying agent is not added, moisture in the product may react with the curing agent, thereby causing a problem in construction due to a faster gel time.

1-10 parts by weight of a pigment powder having green, white, or the like as a pigment may be added to the main ingredient, which is formed as described above, and the color may be freely performed according to a user's arbitrary choice.

When the main component is composed of the two-component reaction curable waterproofing agent as described above, diisocyanate-based compounds diisocyanate methylbenzene (TDI), diphenylmethane diisocyanate (MDI), hexamethylene diisocyanate (HDI), isophorone diisocyanate Any one or more selected from (IPDI) can be used.

Among the curing agents, diisocyanate methylbenzene (TDI) and diphenylmethane diisocyanate (MDI) have fast reactivity, and pot life is within 30 minutes, and hexamethylene diisocyanate (HDI) and isophorone diisocyanate (IPDI) have low reactivity. The pot life may take a day or two or more. Therefore, it is preferable to adjust the pot life by appropriately mixing the pot life is fast and slow to suit the working environment of the curing agent.

The curing agent mixed as described above is used by adding 50 to 100 parts by weight based on 100 parts by weight of the main ingredient to the main ingredient.

Acrylic inorganic coating coating (400) is a waterproofing coating for finishing on the top of the mixed fabric sheet 40-50% acrylic resin, 20-25% calcium carbonate, 20-25% silica sand 8, pigment 3-5%, water 10 to 20%, antifoaming agent 0.1 to 1%, dispersing agent 0.1 to 1%, thickener 0.1 to 1% when composed of the best physical properties.

Figure 3 is a structural diagram showing the joining of the joints of the composite waterproof sheet (300-1, 300-2) using the sheet bonding tape 352 according to an embodiment of the present invention.

Due to the structure of the base surface, there is a case where the composite waterproof sheets 300-1 and 300-2 are to be cut. In this case, as shown in FIG. 3, the surfaces of the composite waterproof sheet 300 that do not have the protrusions for joining the sheets (reference numeral 351 of FIG. 2) may be in contact with each other. The sheet joining tape 352 prepared in advance by cutting the reference numeral 350 of 2 into a width of 10 to 15 cm is bonded using the solvent-free urethane adhesive 360.

Figure 4 is a flow chart illustrating a heat shield composite waterproof sheet method using a rubberized asphalt sheet and mixed fiber fabric according to the present invention.

First, the heat shield layer is laminated on the base surface (S41). The heat shield layer may be composed of at least one of compressed styrene foam, thermal insulation nonwoven fabric, urethane foam, plastic corrugated board, heat reflection insulation, and PE foam insulation, such as 20 mm of compressed styrene foam and 6 mm of thermal insulation nonwoven fabric. It may be stacked on the base surface 100.

Next, a composite waterproof sheet layer is laminated on the heat shield layer (S42). The composite waterproof sheet layer is a laminate of rubberized asphalt sheets, nonwoven fabrics, inorganic film elastic adhesives, glass fiber reinforced fabric sheets, mixed fiber sheets, and solvent-free urethane adhesives, and is preferably factory shipped in the form of composite sheets.

Solvent where the sheet joint protrusion attached to one side of the composite waterproof sheet covers the upper part of the opposite side without the sheet joint protrusion in another adjacent composite waterproof sheet, and where the upper part of the sheet joint protrusion and the upper side of the composite sheet underneath is free of solvent. The adhesive finish treatment with a urethane adhesive (S43). In addition, the protruding portion for sheet joining is wound around the parapet portion of the roof top edge, and the adhesive finish is treated with a solvent-free urethane adhesive.

On the other hand, due to the structure of the base surface it may be necessary to cut the composite waterproof sheet, in which case the projection for joining the sheet may be cut off. In this case, as shown in Figure 3, the composite waterproof sheet 300 can be in contact with each other without the surface for the projection for joining the sheet, in order to join the joint portion of the fiber sheet 350 is cut to 10-15cm wide And the sheet bonding tape 352 prepared previously is bonded together using the solventless urethane adhesive 360.

Finally, the coating layer is formed of an acrylic inorganic coating film coating on the composite waterproof sheet layer (S44). The coating method of the acrylic inorganic coating film 400 may be a roller, a spray method, or the like, and may be applied once or three times to have a thickness of 0.5 to 1 mm. In addition, in the case of applying the acrylic inorganic coating film coating agent 400, it is preferable to apply twice after naturally drying for about 12 hours for complete curing after one application.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the invention as defined by the appended claims. Accordingly, the true scope of the present invention should be determined only by the appended claims.

100: substrate
200: heat shield layer
300: composite waterproof sheet layer
310: rubberized asphalt sheet
320: nonwoven fabric
330: inorganic film elastic adhesive
340: glass fiber reinforced fabric sheet
350: mixed fiber sheet
351: projection for sheet joining
352: sheet bonding tape
360: solvent-free urethane adhesive
400: acrylic inorganic coating film coating agent

Claims (13)

A heat shield composite waterproof sheet structure comprising a heat shield layer, a composite waterproof sheet layer, and an acrylic inorganic coating film coating agent. The method of claim 1, wherein the heat shield layer
At least one of compressed styrene foam, thermal insulation nonwoven fabric, urethane foam, plastic cardboard, heat reflection insulation and PE foam insulation, the thermal conductivity is less than 0.042W / mk, characterized in that the thickness is 5mm Heat shield composite sheet structure. According to claim 1, wherein the composite waterproof sheet layer
Heat-shielding composite sheet structure comprising a rubberized asphalt sheet, nonwoven fabric, inorganic coating elastic adhesive, glass fiber reinforced fabric sheet, and mixed fiber sheet. According to claim 3, wherein the rubberized asphalt sheet is
The non-woven fabric is laminated on top of the asphalt compound, heat shield composite waterproof sheet structure having a thickness of 2-3mm. The method of claim 3, wherein the nonwoven fabric
A polypropylene nonwoven fabric, polyethylene terephthalate non-woven fabric, and any one selected from polyethylene nonwoven fabric, the heat shield composite waterproof sheet structure, characterized in that the weight is 100 ~ 250g / ㎡. The method of claim 3, wherein the inorganic coating elastic adhesive
40 to 45% acrylic emulsion, 25 to 40% cement, 10 to 20% silica sand 8, 5 to 10% water, and 4 to 8% additives. The coating weight is 300 to 500 g / m2. A heat shield composite waterproof sheet structure. The method of claim 3, wherein the glass fiber reinforced fabric sheet
A heat shield composite waterproof sheet structure, characterized by a weight of 200 to 300 g / m 2 and a lattice spacing of 4 to 6 mm. The method of claim 3, wherein the mixed fiber sheet
60 to 80% polyester, 20 to 40% cotton, and the weight is 250 to 400g / ㎡, heat shield composite waterproof sheet structure characterized in that the projection for sheet bonding is formed. According to claim 8, Solvent-free urethane adhesive is formed on the sheet bonding projection of the mixed fiber sheet,
The solvent-free urethane adhesive is a two-component reactive curing type waterproofing agent composed of a main agent and a curing agent, and includes 35 to 55 parts by weight of branched polyether to polyester polyol, 45 to 60 parts by weight of a filler, and a diluent ( 1 to 10 parts by weight of diluent, 0.1 to 2 parts by weight of air release agent, 0.1 to 3 parts by weight of leveling agent, and 1 to 10 parts by weight of humidity scavenger,
The filler includes a main body including at least one of barium sulfate and calcium carbonate (CaCO 3), and a curing agent of 50 to 100 parts by weight of a diisocyanate compound based on 100 parts by weight of the main material. A heat shield composite waterproof sheet structure. The acrylic inorganic coating film coating agent according to claim 1, wherein the acrylic inorganic coating film coating agent is 40 to 50% of acrylic resin, 20 to 25% of calcium carbonate, 20 to 25% of silica sand No. 8, pigment 3 to 5%, water 10 to 20%, and antifoaming agent 0.1 to 1 A heat shield composite waterproof sheet structure comprising:%, dispersant 0.1 to 1%, and thickener 0.1 to 1%. Stacking a heat shield layer on a base surface;
Stacking a plurality of composite waterproof sheet layers including a rubberized asphalt sheet, a nonwoven fabric, an inorganic film elastic adhesive, a glass fiber reinforcement fabric sheet, and a mixed fiber sheet having a sheet joining protrusion;
Applying a solvent-free urethane adhesive to the sheet bonding protrusions of the plurality of composite waterproof sheet layers, and bonding the plurality of composite waterproof sheet layers; And
Constructing an acrylic inorganic coating film on the plurality of composite waterproof sheet layers;
Heat shield composite sheet waterproof method comprising a. The method of claim 10, wherein the heat shield layer comprises at least one of compressed styrene foam (insulation foam), thermal insulation nonwoven fabric, urethane foam, plastic corrugated cardboard, heat reflection insulation and PE foam insulation, the thermal conductivity is less than 0.042W / mk Heat shield composite sheet waterproof method characterized in that the thickness of 5mm. The method of claim 10, wherein the composite waterproof sheet layer is laminated on the heat shield layer in a thickness of 3 to 5mm,
The solvent-free urethane adhesive is laminated to a thickness of 0.5 to 1.5mm,
The acrylic inorganic coating film coating is laminated with a thickness of 0.5 ~ 1.5mm heat shield composite sheet waterproof method.

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