KR20170025574A - Complex waterproof sheet with heat insulator - Google Patents

Complex waterproof sheet with heat insulator Download PDF

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Publication number
KR20170025574A
KR20170025574A KR1020150122230A KR20150122230A KR20170025574A KR 20170025574 A KR20170025574 A KR 20170025574A KR 1020150122230 A KR1020150122230 A KR 1020150122230A KR 20150122230 A KR20150122230 A KR 20150122230A KR 20170025574 A KR20170025574 A KR 20170025574A
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KR
South Korea
Prior art keywords
weight
insulating layer
waterproof
layer
plasticizer
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Application number
KR1020150122230A
Other languages
Korean (ko)
Inventor
김원식
Original Assignee
김원식
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Application filed by 김원식 filed Critical 김원식
Priority to KR1020150122230A priority Critical patent/KR20170025574A/en
Publication of KR20170025574A publication Critical patent/KR20170025574A/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B11/00—Layered products comprising a layer of bituminous or tarry substances
    • B32B11/04—Layered products comprising a layer of bituminous or tarry substances comprising such bituminous or tarry substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B11/044—Layered products comprising a layer of bituminous or tarry substances comprising such bituminous or tarry substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of natural rubber or synthetic rubber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B11/00—Layered products comprising a layer of bituminous or tarry substances
    • B32B11/10—Layered products comprising a layer of bituminous or tarry substances next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/10—Layered products comprising a layer of natural or synthetic rubber next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D11/00—Roof covering, as far as not restricted to features covered by only one of groups E04D1/00 - E04D9/00; Roof covering in ways not provided for by groups E04D1/00 - E04D9/00, e.g. built-up roofs, elevated load-supporting roof coverings
    • E04D11/02—Build-up roofs, i.e. consisting of two or more layers bonded together in situ, at least one of the layers being of watertight composition

Abstract

More particularly, the present invention relates to a composite-adiabatic adiabatic waterproof sheet, and more particularly, to a composite adiabatic adiabatic waterproof sheet which comprises silica capsules incorporated into upper and lower insulating layers or a heat insulating layer to reduce specific gravity and improve porosity to maximize adiabatic effect, This excellent adhesive adhering waterproof layer is formed on the upper and lower insulating layers or below the center substrate formed under the insulating layer to prevent the breakdown phenomenon due to the behavior of the substrate surface to thereby improve the heat insulating performance and the waterproof performance as well as the upper, The present invention provides a waterproof sheet having a composite self-adhesive insulation capable of achieving a heavy sound insulating performance through a waterproof layer and a lightweight sound insulation effect through a seizure waterproof layer.

Description

{Complex waterproof sheet with heat insulator}

More particularly, the present invention relates to a composite-adiabatic adiabatic waterproof sheet, in which silica capsules are mixed in an upper, a lower adiabatic layer or a heat insulating layer to reduce the specific gravity, thereby increasing the porosity and maximizing the adiabatic effect, The seizure waterproof layer is formed below the upper and lower heat insulating layers or below the center substrate formed below the heat insulating layer to prevent the breakdown phenomenon due to the behavior of the base surface. Thus, the heat insulating performance and the waterproofing performance as well as the weight sound through the heat insulating layer And a light-absorbing sound insulation effect through a seizure-proof waterproof layer.

In general, a conventional waterproof sheet is formed by forming a waterproof layer having a certain thickness with an upper or lower modified asphalt such as a nonwoven fabric, a woven fabric, a glass fiber, a film, etc. and a waterproof layer of PE, PVC, EVA, TPO, And a structure in which a release paper (release paper) is attached to the lower part of the waterproof layer.

  The above-mentioned waterproof sheet delays the air due to the heavy weight of the product due to the excessive addition of the filler to the modified asphalt, and at the low temperature, the waterproof layer is easily broken by the external impact. When the waterproof sheet is attached to the concrete structure and other adhered surfaces, There has been an inconvenience that the adhesive surface must be melted by using an Ochi lamp.

  In the above-described construction method, the unheated portion of the heat remains unfused, and since the waterproof sheet adheres to the adherend surface in the state where the unmelted portion exists, a portion not adhered to the adherend surface is formed do.

Therefore, leakage occurs frequently due to defects in the waterproof construction, and when the worker is in an unskilled state or when the worker makes a mistake in accordance with the condition of the day, the sheet is overheated when heated by the soil lamp, There is a fatal disadvantage that the waterproof function is lost due to frequent occurrence of the piercing phenomenon.

On the other hand, the synthetic polymer-based waterproofing sheet such as PVC has good durability such as heat resistance and weatherability due to the excellent followability and conformity to the crack or behavior of the matrix of the building because of its large elongation.

Since the rooftop of the building is directly exposed to the outside air, it is greatly affected by direct sunlight. Therefore, when outside heat enters the building, the heat load increases and the CO 2 gas emission increases. It is an urgent matter to prepare.

In addition, the green space of the city is reduced, the asphalt road and the concrete structure are formed at a high density, and the temperature increases as the distance to the urban area increases. This is a phenomenon that the atmospheric temperature gradually increases compared to the past, and the power consumption in the summer increases rapidly.

The reason for the heat island phenomenon is that various artificial facilities such as asphalt and concrete have a high capacity to absorb light and emit absorbed light to the outside in the form of infrared radiation to raise the temperature of the atmosphere.

In addition, the heavy sound of various cars and construction sites, and the light sound generated in the living environment, cause bad effects and discomfort to people living in residential and office spaces. Therefore, sound insulation and insulation by concrete structures Of course, concrete and waterproofing works must be applied to concrete structures.

Nevertheless, the above-mentioned thermal insulation and waterproofing alone do not significantly increase the effect of insulating waterproofing, and there is a problem that the construction cost is increased due to the expense of expensive cost in order to obtain satisfactory results.

The present invention has been devised to solve the problems described above, and it is an object of the present invention to provide a waterproof sheet which is adhered to a concrete by a self-adhesive method to improve the response to the behavior of a base surface, It is an object of the present invention to provide a composite waterproofing and waterproofing sheet which can provide a sound insulation performance and waterproofing a concrete structure to reduce the construction cost by simultaneously obtaining waterproofing and sound insulation effects.

The object is achieved, having a sound insulation, heat insulation, cold resistance and heat resistance according to the present invention, polyethylene (PE: Polyethylene) 20% by weight - 50% by weight, the plasticizer 5% by weight - 20% by weight, the filler is calcium carbonate (CaCo 3) 10% to 30% by weight of silica capsules having a diameter of 60 占 퐉, a specific gravity of 0.2 to 0.4 g / cc and a strength of 300 to 10,000 psi, 1 to 5% An upper insulating layer formed; A center substrate made of a nonwoven fabric formed under the upper insulating layer; (PE), 50 to 50 wt% of polyethylene (PE), 5 to 20 wt% of a plasticizer, and calcium carbonate (CaCo 3 ) 2 as a filler, which are formed at the lower part of the center substrate and have sound insulation, heat insulation, cold resistance and heat resistance. 10 wt% to 20 wt% of a silica capsule having a specific gravity of 0.2 to 0.4 g / cc and a strength of 300 to 10,000 psi, 1 wt% to 5 wt% of a stabilizer, A lower insulating layer; A lower plastic layer formed on a lower portion of the lower insulating layer and formed on a lower portion of the center substrate, the plastic layer comprising 5 to 22 wt% of mixed asphalt, 6 to 28 wt% of a plasticizer, 6 to 30 wt% , An adhesion waterproof layer composed of 4 wt% to 35 wt% of filler, 1 wt% to 3 wt% of flow inhibitor, 1 wt% to 5 wt% of accelerator, and 0.2 wt% to 2 wt% of antioxidant Wherein the heat-insulating sheet is made of a thermoplastic resin.

The above object can be attained by a resin composition comprising 20 to 50% by weight of polyvinyl chloride (PVC) or polyethylene (PE), 5 to 20% by weight of a plasticizer, 10 wt% to 20 wt% of a silica capsule having a specific gravity of 0.2 to 0.4 g / cc and a strength of 300 to 10,000 psi, 1 wt% to 5 wt% of a stabilizer, 10 wt% to 30 wt% %, ≪ / RTI > A center substrate made of a nonwoven fabric formed under the upper insulating layer; A lower plastic layer formed on a lower portion of the lower insulating layer and formed on a lower portion of the center substrate, the plastic layer comprising 5 to 22 wt% of mixed asphalt, 6 to 28 wt% of a plasticizer, 6 to 30 wt% , An adhesion waterproof layer composed of 4 wt% to 35 wt% of filler, 1 wt% to 3 wt% of flow inhibitor, 1 wt% to 5 wt% of accelerator, and 0.2 wt% to 2 wt% of antioxidant The present invention is also achieved by a composite magnetizable adiabatic waterproof sheet.

The present invention can improve the porosity of the entire heat insulating waterproof sheet by incorporating silica capsules into the upper and lower insulating layers and the insulating layer of the heat insulating waterproof sheet, improve the transportation and the workability by lowering the specific gravity, So that it is possible to obtain a heat insulating effect even by waterproofing work.

In addition, the adhesion waterproof layer is excellent in penetration and adhesion of the adhered surface, improves the weatherability, ozone resistance, flame retardancy, chemical resistance and dispersibility of the sheet, reacts with each other when moisture remains on the adherend surface, The sheet is swollen at the time of contact with the rear moisture, thereby blocking the gap, thereby making it possible to prevent water leakage.

Hereinafter, the structure of the first embodiment according to the present invention will be described.

First, the composite magnetization-type adiabatic and waterproof sheet according to the first embodiment comprises an upper insulating layer, a center substrate, a lower insulating layer, and an adhered waterproof layer from the top.

The upper insulating layer is formed at the uppermost part of the heat insulating waterproof sheet having soundproofness, heat insulation, cold resistance and heat resistance. The upper insulating layer is composed of 20 to 50 wt% of polyvinyl chloride (PVC) (PE) polyethylene, 5 to 20% by weight of a plasticizer, 10 to 30% by weight of a filler, a diameter of 60 占 퐉, a specific gravity of 0.2 to 0.4 g / cc and a strength of 300 to 10,000 psi 10% to 20% by weight of silica, and 1% to 5% by weight of a stabilizer.

Among the compositions of the upper insulating layer, polyethylene (PE) is an aliphatic compound having a chain-like polymer and has a high strength as a basic material for securing rigidity. Due to such properties, the upper insulating layer is protected from external impact, Can be prevented.

If the content of the above polyethylene is 100 wt% of the entire upper insulating layer, the viscosity is lowered when the content is less than 20 wt%, and the viscosity is higher when the content is more than 50 wt%.

Polyvinyl chloride (PVC) in the composition of the upper insulating layer is a thermoplastic resin that is soft and easy to process because it is softened at 150 to 170 ° C. and has a high water resistance, chemical resistance, And kneaded together with a plasticizer to impart softness to the upper insulating layer.

If the content of the vinyl chloride resin is less than 20% by weight based on 100% by weight of the total of the upper insulating layer, the hardness becomes harder, and if it is more than 50% by weight, the physical properties of softness become too high and elasticity becomes insufficient.

In addition, the plasticizer in the composition of the upper insulating layer adopts any one of dioctyl phthalate (DOP), di-2-ethylhexyl phthalate (DOP) and di-octyl adipate (DOA).

The plasticizer is a plasticizer that is added to a large amount in the plastic system. The plasticizer improves the viscosity stability, improves the compatibility between the polymers and plasticity in the compound to improve the processability and changes the physical properties to provide excellent properties. -50 ℃), increased heat resistance, low volatility, and excellent compatibility with other synthetic rubbers.

If the content of the plasticizer is less than 5% by weight based on 100% by weight of the entire upper insulating layer, the flexibility of the product may deteriorate, the adhesive function may deteriorate due to the high viscosity, and the waterproof sheet may become harder at low temperature. When 20% by weight or more is added, the viscosity of the composition is lowered, so that the water drops down at a high temperature. Therefore, the waterproof sheet is pushed by the workers at the time of construction and uniformly removed when the waterproof sheet release film is peeled off. And the work time is delayed due to the inconvenience of construction such as occurrence of a phenomenon that the workpiece is tilted to one side, and labor cost is increased, and the cost of construction is increased, and the tensile strength of the waterproof sheet is also decreased.

Among the compositions for forming the upper insulating layer, the filler is added for the purpose of enhancing the bonding strength, the price reduction effect, and the adhesive force, and generally, the price is low, and the carbonic acid 10 to 30% by weight of calcium (CaCo 3 ) is added.

When the filler is added in an amount of 10 wt% or less, the effect is insufficient and only the specific gravity is increased. When the filler is added in an amount of 30 wt% or more, the price reduction effect is caused. However, Movement and installation are difficult due to the increase in weight of the product, and a drop phenomenon occurs when the wall is installed.

The composition of the upper insulating layer may be a silica capsule having a diameter of 60 占 퐉, a specific gravity of 0.2 to 0.4 g / cc, a strength of 300 to 10,000 psi, - 20% by weight.

If the addition amount of the silica capsules is less than 10% by weight, the effect of lowering the specific gravity is insignificant, the porosity is low and the adiabatic effect is lowered. When the amount exceeds 20% by weight, the specific gravity is lowered, The elasticity is reduced and the unit price is increased, which is uneconomical.

Since the silica capsules are small in size and water-insoluble, they can maintain a constant quality, and the inside is empty to increase the porosity, thereby blocking the flow of heat and improving the watertightness and strength by lowering the water absorption rate.

Generally, when the silica capsule has a spherical cross-sectional area, the flowability of the coating material is increased to improve manufacturability. The hollow silica capsule 212 is preferably composed of small particles of about 60 탆 in which the center is empty , But is not limited thereto.

The stabilizer in the composition for forming the upper insulating layer may be selected from vinyl chloride (Vinyl chloride), lead stearate, Cadmium stearate, and barium stearate. And 1% by weight to 5% by weight based on 100% by weight of the total weight of the upper insulating layer.

In addition, conventional additives such as defoamers and dispersants may be further added

When the amount of the stabilizer is less than 1% by weight, the thermal stability may be deteriorated. If the amount of the stabilizer is more than 5% by weight, the mixing and curing rate may be delayed.

Meanwhile, by forming a central base made of a nonwoven fabric below the upper insulating layer, the heat insulating layer can be integrated with the central base, thereby improving durability and thermal insulation while improving integration with the lower insulating layer formed below, It can be done smoothly.

Since the lower insulating layer formed at the lower portion of the center substrate has soundproofness, thermal insulation, cold resistance, and heat resistance and has the same composition as that of the upper insulating layer, it is assumed that the description of the lower insulating layer has been superseded by the description of the upper insulating layer. .

The adiabatic waterproof layer is a low-viscosity, high-adhesion adhered waterproof layer. The adiabatic waterproof layer has a function of adhering to securely adhere the adiabatic and waterproof sheet of the present invention to a structure such as concrete. And the upper insulating layer has a soundproof function for blocking heavy sound, while the seizure waterproof layer has a soundproof function for shielding a light sound, so that automobile noise and construction noise coming in from the outside are distributed by a silica capsule The living noise generated at the adjacent positions of the heat insulating sheet according to the present invention is partially shielded from the upper insulating layer but is blocked by the adhered waterproof layer having almost no air gap.

That is, the above-mentioned adherent waterproof layer formed under the lower insulation layer may be composed of 5 wt% to 22 wt% mixed asphalt, 6 wt% to 28 wt% plasticizer, 6 wt% to 30 wt% % - 35 wt.% Filler, 1 wt.% - 3 wt.% Flow inhibitor, 1 wt.% - 5 wt.% Accelerator, 0.2 wt.% - 2 wt.% Antioxidant.

In the present invention, the self-adhering waterproof layer secures the drawbacks of the coating film reclaiming method, the mastic method, and the adhesion waterproofing sheet method, thereby lowering the viscosity of the self-adhering waterproof layer, improving the adhesive strength and improving the permeability and adhesion of the solvent constituted by the aliphatic hydrocarbon bond So that the adhesive waterproof layer of the waterproof sheet is flexible in a certain environment, particularly at low temperatures, and has a strong adhesive force so that it can be firmly attached to a structure such as concrete.

The composition of the adhesive waterproof layer in the present invention is composed of mixed asphalt, plasticizer, tackifier, filler, flow inhibitor, accelerator, antioxidant and penetrates into the fine gaps of the adhered surface to exhibit waterproof function, Thereby exhibiting a strong adhesive force.

Therefore, unlike the conventional art, there is no need to attach a waterproof sheet using any tool, and thus the construction of the waterproof sheet is very fast and convenient.

The mixed asphalt contained in the composition of the above-mentioned waterproof layer of adhesion has a penetration degree (expressed as 10 times the number of penetration depths measured in millimeters at a specified temperature of 25 DEG C and a penetration depth of 100 g of needle into the sample in 5 seconds) 5: AP-3 = 5 wt% -25 wt%: 75 wt% -95 wt% of AP-5 having a high boiling point and AP-3 having a penetration of 80 mm -100 mm and a low boiling point It is characterized by having improved heat resistance, tensile strength and adhesive strength by mixing. When the amount is less than 5% by weight, there is no effect, and it is difficult to manage the work, so that the production cost is increased. And the heat resistance is lowered due to an increase in the content of the plasticizer and the softener.

Therefore, the adhesive waterproofing layer according to the present invention can solve the problem of low adhesive force, which is a problem of the conventional self-adhesive waterproof sheet, and the problem of lifting of the waterproof sheet, necessity of an auxiliary mechanism at the time of attachment and labor cost increase.

The plasticizer among the above-mentioned waterproof layer compositions is a plasticizer in which one kind or four to seven kinds of plasticizers are classified into process oils, refined oils and vegetable refined oils based on polybutene having a large molecular weight among the plasticizers. The total weight of the adhesive waterproof layer composition By weight, preferably 6% by weight to 28% by weight.

If it is contained in an amount of less than 6% by weight, a uniform physical property can not be obtained due to a decrease in dispersing power, resulting in a deterioration of the quality of the waterproof sheet and a deterioration of the adhesive function due to a decrease in flexibility of the compound.

On the other hand, if it is contained in an amount exceeding 28% by weight, the cold resistance is improved, but the waterproof sheet flows down at a high temperature, and the elasticity and tensile strength of the waterproof layer are lost.

As the tackifier, a petrochemical resin is used as a tackifier. The tackifier has a function of increasing adhesion and a bonding strength between the blend materials. The content of the tackifier in the adhesive waterproof layer composition is 6 wt% to 30 wt% desirable. If it is less than 6% by weight, it is impossible to adhere to the waterproof sheet structure by the adhesion method due to deterioration of the adhesive function, and the effect of improving the bonding performance between the raw materials is insignificant. On the other hand, The content of the tackifier which is higher in price increases the price of the product, and the phenomenon that the waterproof sheet becomes hard and the fluidity deteriorates at low temperatures can not be avoided, and the adhesive function is rather lowered.

In addition, the filler in the composition of the above-mentioned waterproof layer may exhibit an advantageous effect in increasing the bonding force between the compositions and improving the heat resistance to prevent the waterproof layer from flowing down even at high temperatures. Various fillers can be used, but calcium carbonate, clay, bentonite and the like are preferably used, and it is preferable that they contain 4% by weight to 35% by weight based on the total weight of the waterproof layer.

If the content is less than 4% by weight, the bonding strength between the other raw materials is lowered to deteriorate the heat resistance. On the other hand, if the content exceeds 35% by weight, the cohesive waterproof layer becomes hard and inconvenient in low temperature, Flexibility and adhesive function are deteriorated and the weathering of the waterproof layer due to the external environment is easily deteriorated.

In the composition of the above-mentioned waterproof layer, cellulose is added as a flow preventive agent, and cellulose, clay and the like are added. Particularly in a low viscosity high adhesion waterproof layer, a low viscous compound flows down due to a low viscosity due to low viscosity. One or two kinds of the above raw materials may be added to prevent the viscosity and the heat resistance.

The anti-flow agent is preferably contained in an amount of 1 wt% to 3 wt% based on the total weight of the adhesive waterproof layer. If the amount is less than 1 wt%, the compound flows down at a high temperature due to a small amount, whereas when it is more than 3 wt%, the volume becomes larger at a low specific gravity than the general filler, And also has an excellent absorbing power, so that it absorbs all of the introduced plasticizer and hardens the adhesive waterproof layer.

The accelerator in the adhesive waterproof layer composition according to the present invention preferably contains 1% by weight to 5% by weight based on the total weight of the composition. If it is added in an amount of less than 1% by weight, no effect can be obtained. On the other hand, if it is added in an amount exceeding 5% by weight, the price of the product increases, and the flash point is high.

The antioxidant among the above-mentioned waterproof layer compositions is generally used as a mixed phenolic antioxidant, which is known as a primary antioxidant as a radical scavenger and plays a role of protecting the resin during the use of plastic, synthetic rubber or finished product By weight based on the total weight of the composition.

If it is contained in an amount of less than 0.2% by weight, the waterproof sheet is easily oxidized by oxygen in ultraviolet rays, heat, or air owing to the inefficiency of the oxidizing agent, and the weather resistance of the waterproof sheet is remarkably deteriorated.

On the other hand, when it is contained in an amount of more than 2% by weight, the weatherability is improved to a certain extent, but the effect is large. Due to ultraviolet rays and a substance easily oxidized to the external environment, an excessive addition of the antioxidant results only in an increase in the unit price .

The upper and lower insulating layers according to the present invention have a problem in that it is difficult to form a thin waterproof sheet with a thickness of 8 mm or less by using a silica capsule to improve the porosity and reduce the specific gravity, It is possible to form the upper and lower heat insulating layers of about 3 mm to 5 mm on the upper and lower portions of the central base material, thereby maximizing the heat insulating effect and the sound insulating effect.

In order to improve the responsiveness of the construction according to the workability and the waterproof function and the behavior of the ground surface, it is necessary to form a segregated waterproof layer below the lower insulation layer to prevent the breakdown of the insulation waterproof sheet according to the behavior of the ground surface, It will be possible.

The construction of the second embodiment according to the present invention will be described as follows.

First, in the composite magnetization-type adiabatic waterproof sheet according to the second embodiment of the present invention, a heat insulating layer is formed on an upper portion, a center substrate is formed on a lower portion thereof, and a structure in which a seal water- The detailed description of each component will be omitted.

That is, a heat insulating layer having sound insulation, heat insulation, cold resistance and heat resistance is formed at the top, and the heat insulating layer is composed of 20 to 50 wt% of polyvinyl chloride (PVC) or polyethylene (PE) 10% to 20% by weight of a silica capsule having a specific gravity of 0.2 to 0.4 g / cc and a strength of 300 to 10,000 psi, 10 to 20% by weight of a filler, 10 to 30% % To 5% by weight, and the composition of the upper insulating layer of the first embodiment is the same as that of the upper insulating layer of the first embodiment. Therefore, a detailed description thereof will be omitted.

In addition, by forming a central base made of a nonwoven fabric on the lower part of the heat insulating layer, the heat insulating layer can be integrated with the central base material to improve the durability and the heat insulating property while improving the integrity with the lower heat insulating layer formed below, .

Wherein the adhesive waterproof layer formed on the lower part of the center substrate is formed at a lower portion of the center substrate and comprises 5 wt% to 22 wt% mixed asphalt, 6 wt% to 28 wt% plasticizer, 6 wt% to 30 wt% The antifogging agent is composed of 4% by weight to 35% by weight filler, 1% by weight to 3% by weight of flow inhibitor, 1% to 5% by weight of accelerator and 0.2% to 2% by weight of antioxidant, Since it is the same composition as the above-mentioned waterproof layer of the first embodiment, its detailed description will be omitted.

A low-viscosity, high-adhesion, water-repellent, water-repellent layer is formed under the above-mentioned heat insulating layer. The water-repellent water-repellent layer functions to securely adhere the heat-insulating waterproof sheet of the present invention to a structure such as concrete.

In addition, a cohesive waterproof layer is formed on the lower part of the center substrate. The adhesive waterproof layer is composed of 5 wt% to 22 wt% mixed asphalt, 6 wt% to 28 wt% plasticizer, 6 wt% to 30 wt% 1% to 5% by weight of an accelerator, and 0.2% to 2% by weight of an antioxidant, and the adhesion of the first embodiment described above, And the detailed description thereof will be omitted.

The second embodiment according to the present invention is characterized in that one hollow silica capsule is included in the heat insulating layer to improve the porosity to maximize the heat insulating effect while lowering the specific gravity, The adhesive waterproof layer of the present invention improves the adhesion performance to the concrete base surface and improves the workability, as well as improves the response to the ground surface behavior by improving the adhesion and adhesion function, It is.

Claims (2)

20 to 50 wt% of polyvinyl chloride or polyethylene, 5 to 20 wt% of a plasticizer, 10 to 30 wt% of a filler, An upper insulating layer composed of 10% by weight to 20% by weight of a silica capsule having a specific gravity of 0.2 to 0.4 g / cc and a strength of 300 to 10,000 psi, 1 to 5% by weight of a stabilizer, ;
A center substrate made of a nonwoven fabric formed under the upper insulating layer;
(PVC) or polyethylene (PE), a plasticizer in an amount of 5% by weight to 20% by weight (hereinafter referred to as " polyvinyl chloride "), 10% to 20% by weight of a silica capsule having a specific gravity of 0.2 to 0.4 g / cc and a strength of 300 to 10,000 psi, 1% to 5% of a stabilizer, 2% to 20% A lower insulation layer constituted by weight%;
A lower plastic layer formed on a lower portion of the lower insulating layer and formed on a lower portion of the center substrate, the plastic layer comprising 5 to 22 wt% of mixed asphalt, 6 to 28 wt% of a plasticizer, 6 to 30 wt% , An adhesion waterproof layer composed of 4 wt% to 35 wt% of filler, 1 wt% to 3 wt% of flow inhibitor, 1 wt% to 5 wt% of accelerator, and 0.2 wt% to 2 wt% of antioxidant Wherein the composite waterproofing sheet is a composite waterproofing sheet. 20 to 50 wt% of polyvinyl chloride or polyethylene, 5 to 20 wt% of a plasticizer, 10 to 30 wt% of a filler, A heat insulating layer composed of 10% by weight to 20% by weight of a silica capsule having a specific gravity of 0.2 to 0.4 g / cc and a strength of 300 to 10,000 psi, and 1% to 5% by weight of a stabilizer;
A center substrate made of a nonwoven fabric formed under the heat insulating layer;
And a tackifier, which is formed on the bottom of the center substrate and contains 5 to 22 wt% of mixed asphalt, 6 to 28 wt% of a plasticizer, 6 to 30 wt% of a tackifier, 4 to 35 wt% Characterized in that it comprises an adhesion waterproof layer composed of a filler, 1 to 3% by weight of an anti-flow agent, 1 to 5% by weight of an accelerator and 0.2 to 2% by weight of an antioxidant Sheet.
KR1020150122230A 2015-08-29 2015-08-29 Complex waterproof sheet with heat insulator KR20170025574A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102031132B1 (en) * 2018-04-23 2019-10-11 이병일 Exposure self adhesive waterproof sheet
KR102039886B1 (en) * 2019-06-11 2019-11-04 창조물산 주식회사 Waterproofing seat comprising glass bubble and waterproofing method usign the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102031132B1 (en) * 2018-04-23 2019-10-11 이병일 Exposure self adhesive waterproof sheet
KR102039886B1 (en) * 2019-06-11 2019-11-04 창조물산 주식회사 Waterproofing seat comprising glass bubble and waterproofing method usign the same

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