KR102160080B1 - A composite waterproofing sheet laminated with organic and inorganic hybrid water proofing material and non-woven fabric coated with cutoff film and the method of manufacturing thereof and the waterproofing method using thereof - Google Patents

Abstract

The present invention relates to a composite waterproofing sheet laminated with an organic-inorganic hybrid waterproofing material and a cutoff film-deposited non-woven fabric, to a manufacturing method of the composite waterproofing sheet, and a waterproofing construction method using the same. More specifically, according to the present invention, a moisture blocking cut-off film is deposited on the lower surface of non-woven fabric and an organic-inorganic hybrid waterproofing material layer is formed on the upper surface of the non-woven fabric. Accordingly, the composite waterproofing sheet is integrally coupled to mortar or ready mixed concrete deposited on the upper part of the organic-inorganic hybrid waterproofing material layer, thereby forming an integrated waterproof structure in which the organic-inorganic hybrid waterproofing material layer is not separated from a cured layer of mortar or ready mixed concrete.

Description

A composite waterproofing sheet laminated with organic and inorganic hybrid water proofing material and non-woven fabric coated with cutoff film and the method of the organic-inorganic hybrid waterproofing sheet laminated with organic and inorganic hybrid water proofing material and the method of manufacturing thereof and the waterproofing method using thereof}

The present invention relates to an organic-inorganic hybrid waterproofing material and a cut-off film deposition nonwoven fabric laminated composite waterproof sheet and a manufacturing method thereof, and a waterproof construction method using the same, and more particularly, a moisture barrier cutoff film is deposited on the bottom of the nonwoven fabric, and presence or absence on the upper surface of the nonwoven fabric The organic-inorganic hybrid waterproofing material layer is formed and integrated with the mortar or ready-mixed concrete placed on the organic-inorganic hybrid waterproofing material to form an integrated waterproof structure in which the organic-inorganic hybrid waterproofing material layer and the cured layer of the mortar or the cured layer of ready-mixed concrete are not separated. The present invention relates to an organic/inorganic hybrid waterproofing material and a cut-off film-deposited nonwoven laminated composite waterproofing sheet, a manufacturing method thereof, and a waterproof construction method using the same.

In general, when rainwater penetrates into concrete structures such as indoor, rooftop, roof, basement and other structure floors, road floors such as bridges, roads, and various fluid storage tanks, some of them penetrate the interior and adversely affect the durability of the structure. Since various waterproofing materials are used for waterproof construction, the above waterproof construction is largely divided into an exposed waterproof construction method and a non-exposed waterproof construction method, and the exposed waterproof construction mainly focuses on the roof waterproofing of a concrete structure, and non-exposed waterproofing. The construction is mainly for external waterproofing of underground civil structures such as underground roadways and subways.

In particular, in the non-exposed waterproof construction, there is a method of covering the waterproof construction surface with a waterproof sheet such as paper, felt, cloth impregnated with asphalt or coal tar pitch, and placing mortar, ready-mixed concrete on the surface.

Looking at the conventional technology for waterproofing with a waterproof sheet as described above, according to Korean Patent Registration No. 10-0877980 (registration date January 5, 2009), it flexibly contracts and relaxes in response to the behavior of the base surface, even at low and high temperatures. Including a butyl rubber layer that maintains a semi-solid state to maintain a waterproof layer, and a strength reinforcing layer made of a woven glass fiber material to increase the tensile strength and tear strength of the butyl rubber layer and attached to the upper portion of the butyl rubber layer. In the self-adhesive film waterproof sheet, it is attached to the upper portion of the strength reinforcing layer to form another waterproof layer different from the butyl rubber layer, and includes a waterproof protective layer made of biaxially stretched nylon film to improve the integrity with the urethane coating waterproofing material. Self-adhesive film waterproof sheet, characterized in that it is known.

In addition, according to Korean Patent Registration No. 10-0904517 (registration date June 17, 2009), it is composed of an upper sheet composed of EVA resin, glass fiber, adhesive laminated film and lower rubberized asphalt sheet from above, and the adhesive laminated The film consists of a first film layer composed of medium-density or low-density polyethylene from above, a second film layer composed of low-density or ultra-low-density polyethylene, a third film layer composed of metallocene polyethylene, and a material composed of polycarbonate. A waterproof sheet comprising an adhesive laminated film is known, which is characterized by laminating a fourth film layer and a fifth film layer composed of ethylene ethyl acrylate.

In addition, the first non-woven fabric sheet layer formed by applying a non-woven fabric sheet on the top of the concrete surface in Korea Patent Registration 10-1532734 (registration date June 24, 2015) and a PET film or PP film, the first A resin film layer applied to the upper surface of the nonwoven fabric sheet layer, a second nonwoven fabric sheet layer formed by applying a nonwoven fabric sheet to the upper surface of the resin film layer, and an acrylic resin on the upper surface of the second nonwoven fabric sheet layer are 10 to 30 μm. It includes an acrylic resin layer formed by applying to a thickness, and a top coating urethane layer formed by applying a topcoat urethane paint on the top of the acrylic resin layer, and the nonwoven sheet has a unit weight of 400 to 600 g/m2 and an initial thickness. It is a high-weight non-woven sheet of 4 to 6 mm, the non-woven sheet is needle-punched so that the punching thickness is 40 to 60% of the initial thickness, and heated and rolled so that the final thickness is 80 to 100% of the punching thickness, and processed non-woven sheet The first nonwoven fabric sheet layer and the second nonwoven fabric sheet layer located on one side and one end of the first nonwoven fabric sheet layer and the second nonwoven fabric sheet layer are spaced apart from each other, and , Passing through the spacing region, and having one lower surface in contact with the other upper surface of the second nonwoven fabric sheet layer located on one side, and the other upper surface in contact with one lower surface of the first nonwoven fabric sheet layer located on the other side. It is applied such that the lower fiber glass sheet passes through the spaced region, and a lower surface of one side is in contact with the upper surface of one side of the lower fiber glass sheet, and the lower surface of the other side is in contact with the upper surface of one side of the second nonwoven fabric sheet layer located on the other side. A waterproof layer comprising a non-woven fabric sheet, characterized in that it includes an upper fiber glass sheet and a seam portion including a sealant layer applied to an area including an upper region of the non-woven fabric sheet layer including the fiber glass sheet and a spaced region, is known. have.

In addition, in Korean Patent Registration No. 10-1684235 (registration date November 30, 2016), a lower sheet 111 made of a nonwoven fabric, a soft film 112 attached to the upper surface of the lower sheet 111, and the soft film ( A lamination portion 110 including an upper sheet 113 that is a non-woven fabric attached to the upper surface of 112, and a gas vent portion 115 that is a portion extending from the upper sheet 113 to one side of the lamination portion 110 As a waterproofing method using an insulating composite waterproof sheet capable of discharging moisture by interposing a soft film between nonwoven fabrics comprising a), cleaning the bottom surface 213 of the slab 210, cleaning the floor surface (S1) And, after the floor arrangement step (S1), the primer 220 is applied to the floor surface 213, after the primer application step (S2) and the primer application step (S2), the primer 220 ) Drying, drying step (S3), and after the drying step (S3), while applying a primary waterproof paint 230 to the bottom surface 213, the heat insulating composite waterproof sheet 100 is added to the 1 After applying the primary waterproof paint and attaching the insulating composite waterproof sheet (S4) to the primary waterproof paint 230, and after the applying the primary waterproof paint and attaching the insulating composite waterproof sheet (S4), the insulating composite waterproofing After the second waterproof paint application step (S5) of applying the second waterproof paint 240 to the upper surface of the sheet 100, and after the second waterproof paint application step (S5), the second waterproof paint 240 and A drying step (S6) of drying the first waterproof paint 230, and after the drying step (S6), a top coating step (S7) of applying a coating material 250 to the upper surface of the secondary waterproof paint 240 And, after the top coating step (S7), including a drying step (S8) of drying the coating material 250, the primary waterproof paint application and the heat insulating composite waterproof sheet attaching step (S4), the insulation of one side On the upper surface of the gas vent part 115 of the composite waterproof sheet 100, the laminated part 110 of the insulating composite waterproof sheet 100 on the opposite side is laminated, and the laminated part 110 is the gas vent part 115 To cover part of the A waterproofing method using an insulating composite waterproof sheet capable of discharging moisture by interposing a soft film between nonwoven fabrics, characterized in that, is known.

In addition, in Korean Patent Registration No. 10-1928412 (registration date December 6, 2018), a roll-type nonwoven fabric 32 having a predetermined thickness; and a gel-type coating material impregnated in the nonwoven fabric 32 and exposed to the surface ( 34); The gel-like coating material 34 is impregnated and wrapped in a roll form without attaching a release paper or a release film to the surface of the nonwoven fabric 32 exposed to the surface, and the coating material 34 is made of polybutene resin. ), mineral oil, polyethylene wax, microcrystalline wax, and SEBS-type rubber (Styrene-ethylene-butylene-strene rubber) This impregnated waterproof sheet is known.

In addition, the PET sheet in Korea Patent Registration 10-2040813 (registration date October 30, 2019); A solvent-free type of adhesive that is applied and adhered to one surface of the PET sheet to impart self-adhesiveness; And a release paper attached to one side of the PET sheet to which the adhesive agent is applied, and the solvent-free type adhesive agent is a thermoplastic resin-like elastic rubber, a rubber adhesive dough, and adhesion to the solvent oil heated in a heated liquid stirrer. Mixing and dissolving an agent, and at least one of a heat stabilizer, an anti-aging agent, a reinforcing agent, and a filler are mixed, and the rubber adhesive dough is at least one of natural rubber, SBR rubber, butyl rubber, CR rubber, NBR rubber, and IR rubber. The above and the tackifier are mixed and stirred in a stirrer, and at least one of an activator, a softener, an anti-aging agent, a reinforcing coagulant, and a filler are added to the mixture to be stirred and mixed, and a heated liquid stirrer for manufacturing the solvent-free type adhesive agent A composite waterproof sheet using a PET sheet is known, characterized in that the temperature is 150 to 180°C, and the temperature of the stirrer for preparing the rubber adhesive dough is 50 to 90°C.

However, the waterproof sheets of the prior art have a combination of tensile strength, tear strength and high elongation by using films and/or nonwoven fabrics such as PET and PP as a sheet substrate, and are excellent in water resistance and durability, but mortar on top of the waterproof sheet , In the case of non-exposed waterproof construction by pouring ready-mixed concrete, etc., since the mortar, ready-mixed concrete, or top finished coating material is not integrally laminated and bonded, the mortar, ready-mixed concrete, or top finished coating material is lifted or separated from the waterproof sheet and the waterproof performance is lowered. There was a problem.

[Patent Document 001] Korean Patent Registration 10-0877980 (Registration Date January 5, 2009) [Patent Document 002] Korean Patent Registration 10-0904517 (Registration Date June 17, 2009) [Patent Document 003] Korean Patent Registration 10-1532734 (Registration Date June 24, 2015) [Patent Document 004] Korean Patent Registration 10-1684235 (Registration Date November 30, 2016) [Patent Document 005] Korean Patent Registration 10-1928412 (Registration Date December 6, 2018) [Patent Document 006] Korean Patent Registration 10-2040813 (Registration Date October 30, 2019)

In the present invention, in order to solve the above problems, a moisture barrier cut-off film is deposited on the bottom of the nonwoven fabric, and an organic-inorganic hybrid waterproofing material layer is formed on the upper surface of the nonwoven fabric, so that it is integrally combined with mortar or ready-mixed concrete placed on the organic-inorganic hybrid waterproofing material. The organic-inorganic hybrid waterproofing material and cut-off film-deposited non-woven fabric laminated composite waterproofing sheet and its manufacturing method and waterproofing using the same can form an integrated waterproof structure in which the organic-inorganic hybrid waterproofing material layer and the cured layer of mortar or the cured layer of ready-mixed concrete are not separated. The task to be solved is to provide a construction method.

In order to solve the above problems of the present invention, a moisture barrier cut-off film layer formed by deposition on the bottom of the nonwoven fabric; The organic-inorganic hybrid waterproofing material layer laminated on the upper surface of the nonwoven fabric is formed, including, and integrally combined with the mortar or ready-mixed concrete placed on the top of the organic-inorganic hybrid waterproofing material layer, the organic-inorganic hybrid waterproofing material layer and the cured layer of the mortar or ready-mixed concrete. An organic-inorganic hybrid waterproofing material and a non-woven laminated composite waterproofing sheet deposited with a cut-off film forming an integrated waterproof structure in which the cured layer is not separated is used as a solution to the problem.

The solution to the problem is that the nonwoven fabric is further laminated on the lower surface of the moisture barrier cut-off film layer.

The solution to the problem is that a polyurethane layer is further formed on the lower surface of the moisture barrier cut-off film layer.

The organic-inorganic hybrid waterproofing layer includes 5 parts by weight of water; 70 parts by weight of ethylene vinyl acetate (EVA); 10 parts by weight of a hydration adhesive binder comprising methyl methacrylate monomer (MMA), 2-ethylhexyl acrylate monomer (2-EHAM), and methacrylic acid (MAAC); 100 parts by weight of silica sand; A waterproofing composition including 10 parts by weight of ordinary cement is applied, thermocompressed and cured to form a solution to the problem.

The hydration adhesive binder includes water 860 parts by weight, methyl methacrylate monomer (MMA) 388 parts by weight, 2-ethylhexyl acrylate monomer (2-EHAM) 526 parts by weight, and methacrylic acid (MAAC) 36 parts by weight And, 17.4 parts by weight of a 30% aqueous hydrochloric acid solution, 10 parts by weight of a reactive emulsifier represented by the following [Chemical Formula 1], and 2.6 parts by weight of ammonium persulfate (APS) as a radical polymerization initiator, and sodium metabisulfite (Sodium metabisulfite; A composition comprising 2.5 parts by weight of SMBS), 0.6 parts by weight of sodium bicarbonate as an alkalinizing agent, and 0.4 parts by weight of tert-butyl hydroperoxide (t-BHP) as a polymerization accelerator is radically polymerized. A polymerization composition is used as a solution to the problem.

[Formula 1]

(Wherein, R is an alkyl group, X is -SO ₃ NH ₄ or -SO ₃ Na)

The hydration adhesive binder is cured by coating the No. 7 silica sand and ordinary cement particles, and then hydrated by alkali and water of mortar or ready-mixed concrete placed on the organic-inorganic hybrid waterproofing layer, and the coating is peeled off. It is a solution to the problem that the cement particles are exposed to be integrally bonded with the mortar or ready-mixed concrete so that the organic-inorganic hybrid waterproofing layer and the hardened layer of the mortar or the hardened layer of the ready-mixed concrete are not separated.

The moisture barrier cut-off film layer is selected from a hot-melt polyester film, a hot-melt polyethylene film, a hot-melt polypropylene film, or a hot-melt polyurethane film and thermally deposited on the nonwoven fabric as a solution to the problem.

In addition, in the present invention, a nonwoven fabric drawn in from a nonwoven fabric roll is laminated on an upper portion of the moisture barrier cutoff film drawn from a moisture barrier cutoff film roll, and an organic/inorganic hybrid waterproofing material is put on the top of the nonwoven fabric and applied with a predetermined thickness and width by an application knife. After that, the organic-inorganic hybrid waterproofing material and cut-off film evaporated nonwoven fabric laminated composite waterproof sheet manufactured by the Concurrent Multi-layer Process (CMP) process, which is continuously passed through a heat dryer and rolling roll, are thermocompressed and dried. As a means of solving the problem.

In addition, the present invention comprises the steps of pre-treating the concrete surface to be waterproof; Attaching the organic-inorganic hybrid waterproofing material and the cut-off film-deposited nonwoven laminated composite waterproofing sheet to the pretreated concrete surface; Placing mortar or ready-mixed concrete on the top of the composite waterproof sheet; a waterproof construction method using an organic-inorganic hybrid waterproofing material and a cut-off film-deposited nonwoven laminated composite waterproofing sheet comprising a solution to the problem.

After the step of pre-treating the concrete surface, a self-leveling agent, an adhesive primer or polyurethane on the pretreated concrete surface to reinforce the adhesion between the concrete surface and the bottom surface of the organic-inorganic hybrid waterproofing material and the cut-off film-deposited nonwoven laminated composite waterproof sheet Including the step of applying a paint is a solution to the problem.

The organic-inorganic hybrid waterproofing material and cut-off film deposition nonwoven fabric laminated composite waterproofing sheet and the waterproof construction method using the same of the present invention include a moisture barrier cut-off film deposited on the bottom of the nonwoven fabric, and an organic-inorganic hybrid waterproofing material layer is formed on the upper surface of the nonwoven fabric. Since the organic-inorganic hybrid waterproofing material layer and the mortar layer or ready-mixed concrete layer are not separated from each other by being integrated with the mortar layer or ready-mixed concrete layer placed on the waterproofing material, there is an excellent effect of achieving a complete waterproof structure.

1 is a perspective view of an organic-inorganic hybrid waterproofing material and a cut-off film-deposited nonwoven laminated composite waterproofing sheet of the present invention
2 is an integrated simultaneous bonding (Concurrent Multi-layer Process; CMP) process equipment diagram for manufacturing an organic-inorganic hybrid waterproofing material and a cut-off film-deposited nonwoven laminated composite waterproof sheet of the present invention

The present invention, a moisture barrier cut-off film layer formed by deposition on the bottom of the nonwoven fabric; The organic-inorganic hybrid waterproofing material layer laminated on the upper surface of the nonwoven fabric is formed, including, and integrally combined with the mortar or ready-mixed concrete placed on the top of the organic-inorganic hybrid waterproofing material layer, the organic-inorganic hybrid waterproofing material layer and the cured layer of the mortar or ready-mixed concrete. It features an organic-inorganic hybrid waterproofing material and a nonwoven laminated composite waterproofing sheet deposited with a cut-off film forming an integrated waterproof structure in which the cured layer is not separated.

A characteristic feature of the technical configuration is that a nonwoven fabric is further laminated on the lower surface of the moisture barrier cut-off film layer.

A feature of the technical configuration is that a polyurethane layer is further formed on the lower surface of the moisture barrier cut-off film layer.

The organic-inorganic hybrid waterproofing layer includes 5 parts by weight of water; 70 parts by weight of ethylene vinyl acetate (EVA); 10 parts by weight of a hydration adhesive binder comprising methyl methacrylate monomer (MMA), 2-ethylhexyl acrylate monomer (2-EHAM), and methacrylic acid (MAAC); 100 parts by weight of silica sand; It is a feature of the technical configuration that the waterproofing composition is formed by coating, thermocompression bonding and curing, including 10 parts by weight of ordinary cement.

The hydration adhesive binder includes water 860 parts by weight, methyl methacrylate monomer (MMA) 388 parts by weight, 2-ethylhexyl acrylate monomer (2-EHAM) 526 parts by weight, and methacrylic acid (MAAC) 36 parts by weight And, 17.4 parts by weight of a 30% aqueous hydrochloric acid solution, 10 parts by weight of a reactive emulsifier represented by the following [Chemical Formula 1], and 2.6 parts by weight of ammonium persulfate (APS) as a radical polymerization initiator, and sodium metabisulfite (Sodium metabisulfite; A composition comprising 2.5 parts by weight of SMBS), 0.6 parts by weight of sodium bicarbonate as an alkalinizing agent, and 0.4 parts by weight of tert-butyl hydroperoxide (t-BHP) as a polymerization accelerator is radically polymerized. It is a polymeric composition as a feature of the technical composition.

[Formula 1]

(Wherein, R is an alkyl group, X is -SO ₃ NH ₄ or -SO ₃ Na)

The hydration adhesive binder is cured by coating the No. 7 silica sand and ordinary cement particles, and then hydrated by alkali and water of mortar or ready-mixed concrete placed on the organic-inorganic hybrid waterproofing layer, and the coating is peeled off. It is a feature of the technical construction that the cement particles are exposed to be integrally bonded with the mortar or ready-mixed concrete so that the organic-inorganic hybrid waterproofing layer and the hardened layer of the mortar or the hardened layer of the ready-mixed concrete are not separated.

The moisture barrier cut-off film layer is selected from a hot-melt polyester film, a hot-melt polyethylene film, a hot-melt polypropylene film, or a hot-melt polyurethane film and thermally deposited on the nonwoven fabric.

In addition, in the present invention, a nonwoven fabric drawn in from a nonwoven fabric roll is laminated on an upper portion of the moisture barrier cutoff film drawn from a moisture barrier cutoff film roll, and an organic/inorganic hybrid waterproofing material is put on the top of the nonwoven fabric and applied with a predetermined thickness and width by an application knife. After that, it describes the manufacturing method of the organic-inorganic hybrid waterproofing material and cut-off film-deposited non-woven laminated composite waterproof sheet manufactured by the Concurrent Multi-layer Process, which is continuously passed through a heat dryer and rolling roll, and is thermocompressed and dried. It is characterized by the composition.

In addition, the present invention comprises the steps of pre-treating the concrete surface to be waterproof; Attaching the organic-inorganic hybrid waterproofing material and the cut-off film-deposited nonwoven laminated composite waterproofing sheet to the pretreated concrete surface; Placing mortar or ready-mixed concrete on the top of the composite waterproof sheet; a waterproof construction method using an organic-inorganic hybrid waterproofing material and a cut-off film-deposited nonwoven laminated composite waterproofing sheet comprising a characteristic feature of the technology configuration.

After the step of pre-treating the concrete surface, a self-leveling agent, an adhesive primer or polyurethane on the pretreated concrete surface to reinforce the adhesion between the concrete surface and the bottom surface of the organic-inorganic hybrid waterproofing material and the cut-off film-deposited nonwoven laminated composite waterproof sheet It is a feature of the technical construction that includes the step of applying a paint.

Hereinafter, embodiments of the present invention and/or drawings will be described in detail so that those of ordinary skill in the art can easily implement the present invention. However, the present invention may be implemented in various different forms, and is not limited to the embodiments and/or drawings described herein.

First, the organic-inorganic hybrid waterproofing material and the cut-off film-deposited nonwoven composite waterproof sheet of the present invention, as shown in [Fig. 1], a moisture barrier cut-off film layer 103 formed by deposition on the bottom of the nonwoven fabric 102; The organic-inorganic hybrid waterproofing material layer 101 is formed, including, and integrally combined with mortar or ready-mixed concrete placed on the organic-inorganic hybrid waterproofing material layer 101 to be laminated on the upper surface of the nonwoven fabric 102 to form the organic-inorganic hybrid waterproofing material layer And the cured layer of mortar or the cured layer of ready-mixed concrete is configured to form an integrated waterproof structure that is not separated.

In this case, a nonwoven fabric may be further laminated or a polyurethane layer may be further formed on the lower surface of the moisture barrier cut-off film layer 103.

As a characteristic configuration and effect of the present invention, the organic-inorganic hybrid waterproofing material layer includes 5 parts by weight of water; 70 parts by weight of ethylene vinyl acetate (EVA); 10 parts by weight of a hydration adhesive binder comprising methyl methacrylate monomer (MMA), 2-ethylhexyl acrylate monomer (2-EHAM), and methacrylic acid (MAAC); 100 parts by weight of silica sand; Usually 10 parts by weight of cement; It is formed by coating, thermocompression bonding and curing a waterproofing composition comprising a composition.

Here, the hydration adhesive binder has 860 parts by weight of water, 388 parts by weight of methyl methacrylate monomer (MMA), 526 parts by weight of 2-ethylhexyl acrylate monomer (2-EHAM), and methacrylic acid (MAAC) 36 Parts by weight, 17.4 parts by weight of a 30% aqueous hydrochloric acid solution, 10 parts by weight of a reactive emulsifier represented by the following [Chemical Formula 1], and 2.6 parts by weight of ammonium persulfate (APS) as a radical polymerization initiator, and sodium metabisulfite (Sodium Metabisulfite; a composition comprising 2.5 parts by weight of SMBS, 0.6 parts by weight of sodium bicarbonate as an alkalizing agent, and 0.4 parts by weight of tert-butyl hydroperoxide (t-BHP) as a polymerization accelerator. Polymerized polymerization composition is used.

[Formula 1]

(Wherein, R is an alkyl group, X is -SO ₃ NH ₄ or -SO ₃ Na)

The methyl methacrylate monomer (MMA) used in the hydration adhesive binder of the organic-inorganic hybrid waterproofing layer is a colorless and transparent liquid, and tert-butyl alcohol (TBA) prepared using C4 oil as a raw material in a gas state. It is a reactive resin made to have a double carbon bond through a polymerization reaction process of acrylic acid and mitacrylic acid ester, which is produced by oxidizing to prepare methacrylic acid and then esterifying with methanol. CH2=C(CH3)CO2CH3 It has a chemical formula.

Such methyl methacrylate monomer (MMA) is a hard type and has flexibility, and when radical polymerization at a low temperature shows a property of increasing the proportion of a syndiotactic structure in which the polymer chain structure has continuous regularity, durability It has excellent physical properties such as heat resistance, chemical resistance, abrasion resistance, and UV safety, and has excellent weather resistance, which is a property that withstands weather and climate such as sunlight, thereby inhibiting corrosion caused by external environmental changes (weather and climate change) and penetrating into the package. It is integrated to improve adhesion strength and toughness, has good coloring properties by pigments, etc., has a high coefficient of thermal expansion, but is a resin with very high stability, so it has excellent transparency, weather resistance, and coloring properties, so it is used in many fields.

However, MMA starts curing when a small amount of curing agent is added about 2 to 5% of the amount of the resin, and it is an ultra-fast curing resin that is completely cured within 1 hour after the start of curing, and the working time is usually around 20 minutes. This is excellent so that installation and finishing can be performed on a large area. When using such MMA as a waterproof composition, the strength is very good after hardening, but not only lacks crack resistance and bend tracking property, but also has different thermal expansion characteristics with the base body. Therefore, there is a problem that cracks are easily generated when used outdoors rather than indoors.

In the present invention, a polymerization composition obtained by radical polymerization by mixing methyl methacrylate monomer (MMA) with 2-ethylhexyl acrylate monomer (2-EHAM) and methacrylic acid (MAAC) is used in the present invention.

The 2-ethylhexyl acrylate monomer (2-EHAM) and methacrylic acid (MAAC) are mixed and used to compensate for the crack resistance of the methyl methacrylate monomer (MMA) with ductility after curing.

At this time, in the radical polymerization of methyl methacrylate monomer (MMA), 2-ethylhexyl acrylate monomer (2-EHAM) and methacrylic acid (MAAC) of the hydration adhesive binder, a reactive emulsifier represented by the following [Formula 1] Use is another feature of the present invention.

[Formula 1]

(Wherein, R is an alkyl group, X is -SO ₃ NH ₄ or -SO ₃ Na)

That is, the reactive emulsifier represented by [Chemical Formula 1] is a reactive surfactant having a radical group in the molecule, and methyl methacrylate monomer (MMA), 2-ethylhexyl acrylate monomer (2-EHAM) of the hydration adhesive binder, and In addition to stably emulsifying methacrylic acid (MAAC), a polymerization composition by direct radical polymerization with the methyl methacrylate monomer (MMA), 2-ethylhexyl acrylate monomer (2-EHAM) and methacrylic acid (MAAC) It improves the water resistance and physical properties of the product, and is particularly effective in improving waterproofness.

In addition, ethylene vinyl acetate (EVA) used in the organic-inorganic hybrid waterproofing layer is to improve the strength, adhesion, and waterproofness of the waterproof layer, and when used together with the methyl methacrylate (MMA), the strength and film formation of the waterproof layer It can improve performance, elasticity and waterproof performance.

On the other hand, the inorganic binder used in the organic-inorganic hybrid waterproofing material layer uses ordinary cement and No. 7 silica to constitute the organic-inorganic hybrid waterproofing material layer of the present invention.

Here, as another feature of the present invention, the hydration adhesive binder is cured by coating the No. 7 silica sand and ordinary cement particles, and then hydrated by alkali and water of mortar or ready-mixed concrete placed on the organic-inorganic hybrid waterproofing layer. The coating is peeled off to expose the No. 7 silica sand and ordinary cement particles so as to be integrally bonded with the mortar or ready-mixed concrete, so that the organic-inorganic hybrid waterproofing layer and the cured layer of the mortar or the cured layer of the ready-mixed concrete are not separated.

That is, the radical polymer of methyl methacrylate monomer (MMA), 2-ethylhexyl acrylate monomer (2-EHAM) and methacrylic acid (MAAC) of the hydration adhesive binder coats the No. 7 silica sand and ordinary cement particles. After curing, it is hydrated by alkali and water of the mortar or ready-mixed concrete placed on the organic-inorganic hybrid waterproofing layer, and the acrylic polymer coating is broken to expose the No. 7 silica sand and ordinary cement particles to expose the mortar or ready-mixed concrete and the No. 7 silica sand. And ordinary cement particles are cement-bonded to be integrally bonded and not delaminated.

In addition, the moisture barrier cut-off film layer 103 is selected from a hot-melt polyester film, a hot-melt polyethylene film, a hot-melt polypropylene film, or a hot-melt polyurethane film, and is configured to be thermally deposited on the nonwoven fabric 102.

On the other hand, the organic-inorganic hybrid waterproofing material and the cut-off film-deposited non-woven composite waterproof sheet of the present invention, as shown in [Fig. 2], the non-woven fabric drawn from the non-woven fabric roll on the top of the water-blocking cut-off film drawn from the moisture-blocking cut-off film roll It is laminated, and an organic/inorganic hybrid waterproofing material is added to the upper surface of the nonwoven fabric, applied to a certain thickness and width by a coating knife, and then thermally compressed and dried while passing through a heat dryer and a rolling roll continuously. ) Is manufactured by process and equipment.

In addition, the waterproof construction method using the organic-inorganic hybrid waterproofing material and the cut-off film-deposited nonwoven laminated composite waterproof sheet of the present invention includes the steps of pretreating the concrete surface to be waterproof; Attaching the organic-inorganic hybrid waterproofing material and the cut-off film-deposited nonwoven laminated composite waterproofing sheet to the pretreated concrete surface; And placing mortar or ready-mixed concrete on the top of the composite waterproof sheet.

At this time, after the step of pretreating the concrete surface, in order to reinforce the adhesion between the concrete surface and the bottom surface of the organic-inorganic hybrid waterproofing material and the nonwoven laminated composite waterproof sheet deposited with a cut-off film, a self-leveling agent, an adhesive primer, or It may include the step of applying a polyurethane paint.

[Manufacture of organic-inorganic hybrid waterproof sheet of the present invention]

① Manufacturing of hydration adhesive binder

To a separate flask, 520 parts by weight of ion-exchanged water, 3.4 parts by weight of a 30% aqueous hydrochloric acid solution, and 0.6 parts by weight of sodium bicarbonate as an alkalinizing agent were added, and the mixture was heated to 65°C, stirred, and nitrogen-substituted.

Then, in a separate container, 340 parts by weight of ion-exchanged water, 14 parts by weight of a 30% aqueous hydrochloric acid solution, 10 parts by weight of a reactive emulsifier (brand name SR10), 388 parts by weight of methyl methacrylate monomer (MMA), and a 2-ethylhexyl acrylate monomer (2-EHAM) 526 parts by weight and 36 parts by weight of methacrylic acid (MAAC) were added, the temperature was raised to 75° C. and emulsified while stirring, and the emulsion was continuously added dropwise into the above-described separating flask. In addition, during the dropping, nitrogen gas was introduced into the separating flask and the internal temperature was maintained at 75°C. After completion of the continuous dropping, it was aged for 1 hour.

Subsequently, as a radical polymerization initiator, ammonium persulfate (APS) 2.6 parts by weight and sodium metabisulfite (SMBS) 2.5 parts by weight, tert-butyl hydroperoxide (t-BHP) as a polymerization accelerator. ) 0.4 parts by weight, 0.002 parts by weight of an aqueous solution of ferrous sulfate (FeSO4) as a pH adjusting agent, and 16 parts by weight of 25%-NH4OH as a neutralizing agent were added thereto, followed by radical polymerization to obtain a hydration adhesive binder polymer solution of the present invention.

② Preparation of organic-inorganic hybrid waterproofing composition

5 parts by weight of water; Ethylene vinyl acetate (EVA) 70 parts by weight, 10 parts by weight of the above-prepared hydration adhesive binder polymer solution, 100 parts by weight of silica sand, and 10 parts by weight of ordinary cement were homogeneously mixed to prepare the waterproofing composition of the present invention.

③ Fabrication of organic-inorganic hybrid waterproof sheet

Moisture barrier cutoff film A nonwoven fabric drawn from a nonwoven fabric roll is laminated on the top of the moisture barrier cutoff film drawn from the roll, and the prepared organic-inorganic hybrid waterproofing material composition is added to the top surface of the nonwoven fabric, and applied with a coating knife to a certain thickness and width. Thereafter, the organic-inorganic hybrid waterproof sheet of the present invention was manufactured by using a Concurrent Multi-layer Process and an apparatus in which a heat dryer and a rolling roll are continuously passed through and thermocompression drying.

The above description is merely illustrative of the technical idea of the present invention, and those of ordinary skill in the art to which the present invention pertains will be able to make various modifications and variations without departing from the essential characteristics of the present invention. Accordingly, the embodiments and/or drawings disclosed in the present invention are not intended to limit the technical idea of the present invention, but to explain the technical idea, and the scope of the technical idea of the present invention is not limited by these embodiments and/or drawings. . The scope of protection of the present invention should be interpreted by the following claims, and all technical ideas within the scope equivalent thereto should be interpreted as being included in the scope of the present invention.

101: organic-inorganic hybrid waterproofing layer
102: non-woven fabric
103: moisture barrier cut-off film layer

Claims (10)

A moisture barrier cut-off film layer deposited on the bottom of the nonwoven fabric; The organic-inorganic hybrid waterproofing material layer laminated on the upper surface of the nonwoven fabric is formed, including, and integrally combined with the mortar or ready-mixed concrete placed on the top of the organic-inorganic hybrid waterproofing material layer, the organic-inorganic hybrid waterproofing material layer and the cured layer of the mortar or ready-mixed concrete. It has an integrated waterproof structure in which the hardened layer is not separated,
The organic-inorganic hybrid waterproofing layer includes 5 parts by weight of water; 70 parts by weight of ethylene vinyl acetate (EVA); 10 parts by weight of a hydration adhesive binder comprising methyl methacrylate monomer (MMA), 2-ethylhexyl acrylate monomer (2-EHAM), and methacrylic acid (MAAC); 100 parts by weight of silica sand; Usually 10 parts by weight of cement; It is formed by coating, thermocompression bonding and curing of a waterproofing composition comprising,
The hydration adhesive binder includes water 860 parts by weight, methyl methacrylate monomer (MMA) 388 parts by weight, 2-ethylhexyl acrylate monomer (2-EHAM) 526 parts by weight, and methacrylic acid (MAAC) 36 parts by weight And, 17.4 parts by weight of a 30% aqueous hydrochloric acid solution, 10 parts by weight of a reactive emulsifier represented by the following [Chemical Formula 1], and 2.6 parts by weight of ammonium persulfate (APS) as a radical polymerization initiator, and sodium metabisulfite (Sodium metabisulfite; A composition comprising 2.5 parts by weight of SMBS), 0.6 parts by weight of sodium bicarbonate as an alkalinizing agent, and 0.4 parts by weight of tert-butyl hydroperoxide (t-BHP) as a polymerization accelerator is radically polymerized. Organic-inorganic hybrid waterproofing material and cut-off film-deposited nonwoven laminated composite waterproofing sheet characterized in that it is a polymerization composition
[Formula 1]

(In Formula 1, R is an alkyl group, X is -SO ₃ NH ₄ or -SO ₃ Na)
The method of claim 1,
An organic/inorganic hybrid waterproofing material and a cut-off film-deposited nonwoven fabric laminated composite waterproofing sheet, characterized in that a nonwoven fabric is further laminated on the lower surface of the moisture barrier cutoff film layer
The method of claim 2,
An organic-inorganic hybrid waterproofing material and a cut-off film-deposited nonwoven fabric laminated composite waterproofing sheet, characterized in that a polyurethane layer is further formed on the lower surface of the moisture barrier cut-off film layer
delete delete The method of claim 1,
The hydration adhesive binder is cured by coating the No. 7 silica sand and ordinary cement particles, and then hydrated by alkali and water of mortar or ready-mixed concrete placed on the organic-inorganic hybrid waterproofing layer, and the coating is peeled off. The organic-inorganic hybrid waterproofing material and cut-off film deposition nonwoven fabric, characterized in that the organic-inorganic hybrid waterproofing material layer and the cured layer of the mortar or the cured layer of ready-mixed concrete are not separated by exposing the cement particles to be integrally bonded with the mortar or ready-mixed concrete Laminated composite waterproof sheet
The method of claim 1,
The moisture barrier cut-off film layer is selected from a hot-melt polyester film, a hot-melt polyethylene film, a hot-melt polypropylene film, or a hot-melt polyurethane film, and is thermally deposited on the non-woven fabric.The organic-inorganic hybrid waterproofing material and cut-off film deposited non-woven fabric laminated composite waterproofing Sheet
Moisture barrier cut-off film A non-woven fabric drawn from a non-woven fabric roll is laminated on the top of the moisture barrier cut-off film drawn from the roll, and the organic-inorganic hybrid waterproofing material composition according to claim 1 is added to the upper surface of the non-woven fabric to a certain thickness and width by a coating knife. An organic/inorganic hybrid waterproofing material and a nonwoven laminated composite waterproofing sheet with cut-off film, characterized in that it is manufactured by the Concurrent Multi-layer Process method in which it is continuously passed through a heat dryer and a rolling roll and then thermocompressed and dried. Manufacturing method
Pre-treating the concrete surface to be waterproof; Attaching the organic-inorganic hybrid waterproofing material and the cut-off film-deposited nonwoven composite waterproofing sheet according to any one of claims 1 to 3 and 6 to 7 to the pretreated concrete surface; Placing mortar or ready-mixed concrete on the top of the composite waterproof sheet; a waterproof construction method using an organic-inorganic hybrid waterproofing material and a cut-off film-deposited nonwoven laminated composite waterproofing sheet comprising:
The method of claim 9
After the step of pre-treating the concrete surface, a self-leveling agent, an adhesive primer or polyurethane on the pretreated concrete surface to reinforce the adhesion between the concrete surface and the bottom surface of the organic-inorganic hybrid waterproofing material and the cut-off film-deposited nonwoven laminated composite waterproof sheet Waterproof construction method using an organic-inorganic hybrid waterproofing material and a cut-off film-deposited nonwoven laminated composite waterproofing sheet comprising the step of applying a paint

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