KR101564242B1 - Construction method for Viscous soft modified polyurethane waterproofing material - Google Patents

Construction method for Viscous soft modified polyurethane waterproofing material Download PDF

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KR101564242B1
KR101564242B1 KR1020150094176A KR20150094176A KR101564242B1 KR 101564242 B1 KR101564242 B1 KR 101564242B1 KR 1020150094176 A KR1020150094176 A KR 1020150094176A KR 20150094176 A KR20150094176 A KR 20150094176A KR 101564242 B1 KR101564242 B1 KR 101564242B1
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weight
polyether polyol
polyol resin
waterproof sheet
average molecular
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KR1020150094176A
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Korean (ko)
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서상준
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서상준
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
    • C09D175/04—Polyurethanes
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/64—Insulation or other protection; Elements or use of specified material therefor for making damp-proof; Protection against corrosion
    • E04B1/644—Damp-proof courses

Abstract

The present invention relates to a viscos soft-modified urethane paint film waterproofing material, a manufacturing method thereof, and a waterproofing method using the same, more specifically, which comprises: a main material composed of 10.5-12.5 wt% of a polyether polyol resin, 4-6 wt% of natural extract oil, 0.5-1 wt% curing accelerator which is an organic tin compound, 10-14 wt% of plasticizer, 0.5-1.5 wt% of a polyamide-based anti-precipitating agent, and 65-70 wt% of filler; and a curing agent containing 60-66 wt% of a polyether polyol resin composed of 8-10 wt% of a polyether polyol resin, 9.5-12 wt% of a polyether polyol resin, 21-23 wt% of a polyether polyol resin, and 22-23 wt% of a polyether polyol resin, 0.01-0.06 wt% of a reaction stabilizer, 17-22 wt% of toluene diisocyanate (TDI), 13-18 wt% of methylene diphenyl diisocyanate (MDI), 0.06-0.1 wt% of an antifoaming agent, and a 3-7 wt% of a silane compound.

Description

Technical Field [0001] The present invention relates to a viscose soft modified polyurethane waterproofing material, a viscose soft modified polyurethane waterproofing material,

The present invention relates to a viscose soft modified urethane coating material, a method for producing the same, and a waterproofing method using the same. More particularly, the present invention relates to an environmentally friendly coating material having no organic volatiles, And is superior in resistance to deterioration due to heat resistance of 80 ° C or higher and exhibits a gum type property having a high elongation. Therefore, it has excellent elastic restoring force and excellent follow-up against cracking, In addition to glass fiber as well as adhesion to the substrate, it is possible to apply waterproofing without a primer (basecoat). Silica is added to the base material and a silane compound is added to the base material to form a dense structure. To give a function of shielding the radon generated in daily life The present invention relates to an environmentally friendly viscose soft modified urethane coating material, a manufacturing method thereof, and a waterproofing method using the same.

Polyurethane materials for civil engineering and architectural use can be applied seamlessly, which is characteristic of the material itself, and can be applied to structures with complicated shapes, chemical properties such as adhesiveness to the surface, chemical resistance and durability, And physical stability such as dimensional stability.

Especially, because of its great advantage of excellent elongation rate, it is excellent in followability against cracks in the ground, and the demand for it as inner, outer wall and floor waterproofing material of buildings is increasing.

However, since polyurethane materials which are excellent for architectural use at present are produced separately from isocyanate prepolymer and polyol mixture in the production plant and must be applied through various steps such as weighing, mixing, stirring and construction according to the blending ratio determined at the construction site, This is a disadvantage of the problem that the labor cost is increased because of the need for skilled and skilled professional manpower, which reduces the construction efficiency by increasing the construction cost as a whole.

In general, the two-part polyurethane material must use all of the waterproofing materials that have been stirred within a limited working time, so that the time interval between agitation and construction must be controlled well, and if this time is not met, the loss of material increases.

Therefore, in order to maintain the excellent physical and chemical properties of the polyurethane material and to compensate for the disadvantages of the two-pack type, one-pack type of polyurethane building materials has been studied.

For example, an isocyanate prepolymer having an isocyanate (NCO) weight% of about 1 to 5% is synthesized, and a filler, a stabilizer, a coloring material or the like is added thereto to make a polyurethane material one-pack.

However, this method is disadvantageous in that the storage stability is lowered even when the curing time is slow at a room temperature and only a slight amount of water exists, and the carbon dioxide generated by the reaction of moisture and isocyanate is liable to cause blistering of the coating film.

In addition, the reactivity is high in a high temperature and high humidity environment, and there is an inadequate problem in the roof waterproofing of a summer building. In other words, hardening of the surface and the coating film undergoes easily, but the penetration of moisture from the surface of the coated film hardly occurs in the interior of the coating film, and the curing progressing rate is slow.

As the waterproofing construction is also applied in the winter season, it is necessary to ensure the workability in the winter work, and the waterproofing layer is required to be highly durable because the waterproofing layer is difficult to reapply once it is constructed.

Particularly, it is necessary to have a product that can withstand heat degradation phenomenon, and the waterproof protective material is an important factor of the durability of the waterproof layer, and it is urgent to develop a product having excellent compatibility with the waterproof layer.

On the other hand, radon, a colorless, odorless, tasteless gas produced after uranium in crustal rocks undergoes a number of decay processes, is a natural radioactive material that exists everywhere in the earth, and 85% Natural radiation, and the radiation exposed by radon is about 43% of the annual exposure.

Since the above-mentioned radon flows through the cracks and cracks of the building from the soil, it is important to repair the uniformity by blocking the cracks in the concrete wall or floor.

Particularly, in the case of high-rise apartment buildings, the case that the radon was detected above the standard value was reported through the media, and the seriousness of the radon-emitting building material (gypsum board, cement brick) Surveys are also in parallel.

As described above, at present, there is a need for consumers to shield radon from building materials. Conventional urethane and epoxy resins have good permeability, so that increasing the content of the filler to increase the radon barrier property none.

Therefore, it is necessary to modify the coating film waterproofing material itself and to modify the structure to a tight and dense structure, thereby adding radon shielding performance and using the coating film waterproofing material having the shielding performance of radon in this way, harmful influence by radon So that it can be blocked.

In order to solve the above-mentioned problems, the present invention aims at improving the response to concrete structures by improving the elongation rate by maintaining gum type physical properties and improving the adhesion with waterproof products and concrete concrete surfaces Thereby improving the workability and maintaining the physical properties of the modified urethane. Thus, it is possible to apply the composition during the winter season while maintaining the heat resistance at 80 ° C or higher to improve the resistance to deterioration. In particular, silica is added to the subject, Silane compounds are added to each other to form a dense structure, and then a mixture of a base and a hardener is mixed to provide a function of shielding radon generated in daily life. Thus, an environmentally friendly viscose soft modified urethane coating waterproofing material, The purpose is to provide a method.

The above object is achieved according to the present invention by providing a process for the production of a polyether polyol resin comprising 10.5 to 12.5% by weight of a polyether polyol resin, 4 to 6% by weight of a natural extract oil, 0.5 to 1% by weight of a curing accelerator as an organotin compound, 10 to 14% by weight of an anti-settling agent based on polyamide, 0.5 to 1.5% by weight of an anti-settling agent of a polyamide type and 65 to 70% by weight of a filler, wherein the filler contained in the subject is silica 20 30 to 40% by weight of calcium carbonate (CaCO 3 ) having an average particle diameter of 4 탆 and 40 to 50% by weight of calcium carbonate (CaCO 3 ) having an average particle diameter of 9 탆; (-OH) 2, a number average molecular weight of 1000, and a polyether polyol resin having a number average molecular weight of 2000 of 9.5 to 12% by weight, and a hydroxyl group (-OH) -OH) 2, 21 to 23% by weight of a polyether polyol resin having a number average molecular weight of 3000 and 22 to 23% by weight of a polyether polyol resin having a hydroxyl group (-OH) 3 and a number average molecular weight of 3000 60 to 66% by weight of a polyether polyol resin, 0.01 to 0.06% by weight of a reaction stabilizer, 17 to 22% by weight of toluene diisocyanate (TDI), methylene diphenyl diisocyanate (MDI) Viscose soft modified urethane coating waterproofing material obtained by mixing a curing agent in an amount of 1 to 18% by weight, an antifoaming agent in an amount of 0.06 to 0.1% by weight, and a silane compound in an amount of 3 to 7% Lt; / RTI >

On the other hand, the above-mentioned object is achieved by a process for producing a polyether polyol resin, which comprises the steps of: (1) preparing a polyether polyol resin having a functional group (-OH) 2, a polyether polyol resin having a number average molecular weight of 1,000 to 7 to 9% 19 to 25% by weight of a polyether polyol resin consisting of 10 to 16% by weight of a natural extract oil, 6 to 10% by weight of a natural extract oil, 0.01 to 0.04% by weight of a curing accelerator as an organotin compound, 0.5 to 1.5% by weight of a polyamide-based sedimentation inhibitor, and 55 to 65% by weight of a filler, wherein the filler contained in the subject is 20% by weight to 30% by weight of silica having an average particle size of 0.1 탆 or less among 100% 30 to 40% by weight of calcium carbonate (CaCO 3 ) having an average particle diameter of 4 탆, and 40 to 50% by weight of calcium carbonate (CaCO 3 ) having an average particle diameter of 9 탆; (-OH) 2, a number average molecular weight of 1000, and a polyether polyol resin having a number average molecular weight of 2000 of 9.5 to 12% by weight, and a hydroxyl group (-OH) -OH) 2, 21 to 23% by weight of a polyether polyol resin having a number average molecular weight of 3000 and 22 to 23% by weight of a polyether polyol resin having a hydroxyl group (-OH) 3 and a number average molecular weight of 3000 60 to 66% by weight of a polyether polyol resin, 0.01 to 0.06% by weight of a reaction stabilizer, 17 to 22% by weight of toluene diisocyanate (TDI), methylene diphenyl diisocyanate (MDI) Viscose soft modified urethane coating waterproofing material obtained by mixing a curing agent in an amount of 1 to 18% by weight, an antifoaming agent in an amount of 0.06 to 0.1% by weight, and a silane compound in an amount of 3 to 7% Lt; / RTI >

Meanwhile, the above object is achieved by mixing 10.5 to 12.5% by weight of a polyether polyol resin, 4 to 6% by weight of a natural extract oil and 10 to 14% by weight of a plasticizer with stirring at a temperature of 950 to 1,100 rpm 0.5 to 1% by weight of a curing accelerator as an organotin compound was added thereto, followed by stirring for 10 minutes. Subsequently, 0.5 to 1.5% by weight of an anti-settling agent was added thereto and stirred at 1,400 to 1,500 rpm for 20 minutes. (CaCO 3), but in the 55 to 65% by weight, and the filler added to 100% by weight mean particle diameter of silica 20 to 30% by weight of the 0.1㎛ of the first, the calcium carbonate having an average particle diameter of 4㎛ (CaCO 3) 30 ~ 40 , Adding 40 to 50% by weight of calcium carbonate (CaCO 3 ) having an average particle diameter of 9 μm, mixing the mixture at 1,500 to 2,000 rpm for at least 30 minutes to prepare a subject; (-OH) 2, a polyether polyol resin having a number average molecular weight of 1,000 of 8 to 10% by weight, a hydroxyl group (-OH) 2, and a number average molecular weight of 2000 of 9.5 to 12% ), 2 to 22% by weight of a polyether polyol resin having a number average molecular weight of 3,000 and 21 to 23% by weight, a hydroxyl group (-OH) 3 and a number average molecular weight of 3000, To 7% by weight, and the mixture was stirred at 75 to 85 rpm for 5 minutes. Then, 0.01 to 0.06% by weight of a reaction stabilizer was added thereto. After 10 minutes, 17 to 22% by weight of toluene diisocyanate (TDI, 13 to 18% by weight of MDI (methylene diphenyl diisocyanate) are sequentially charged to confirm the exothermic state. When the exotherm is stopped, the mixture is heated and maintained at 80 to 90 DEG C for 2 to 4 hours to obtain a residual NCO of 10 to 12 wt% %, Followed by cooling with cooling water In the step of Posay 0.06 ~ 0.1 weight%, and filtered by the filtering net 80mesh After cooling to 60 ℃ producing a curing agent and; And mixing the base and the curing agent at a ratio of 10: 1 to 3% by weight to the viscose soft modified urethane coating waterproofing material.

Meanwhile, the above-mentioned object is achieved by a method of manufacturing a visco-elastic, urethane-coated waterproofing material, comprising the steps of: applying the viscose softened urethane coating material waterproof material to a surface 100 to form a first waterproof layer 102; At least one waterproof sheet (110) made of any one of an improved asphalt sheet and a synthetic polymer based sheet is attached to the upper part of the first waterproof layer (102) in an abutting manner, wherein the viscose soft modified urethane coating waterproofing material Forming a second waterproof layer (104) by pressing and joining the waterproof sheet (110) so as to form a second waterproof layer (104); The wings 124 formed between the cut-out 122 and the cut-out 122 are formed on both sides of the cut-out 122 by forming a plurality of cut-outs 122 at predetermined intervals along the longitudinal direction, And a scratch 126 or a wound urethane film 120 for scratching or hitting the inside of the bottom surface in a specific direction or an unspecified direction so as to improve the frictional force of the surface may be provided on any one of the waterproof sheet 110, And another waterproof sheet (110) adhere to the upper portion of the viscose soft modified urethane coating waterproofing material eluted to the abutting portion (106) to which the waterproof sheet (110) is abutted; Forming a third waterproof layer by applying a middle coat waterproofing material to the upper portion of the waterproof sheet 110 and the urethane film 120; And applying a top coat waterproofing material to an upper portion of the third waterproofing layer when the middle coatwaterproofing material is cured. The present invention also provides a composite waterproofing method using the viscose softened urethane coating waterproofing material.

On the other hand, the above-mentioned object is achieved by measuring the abutting portion where one waterproof sheet 110 made of any one of the modified asphalt sheet or the synthetic polymer based sheet and the other waterproof sheet 110 are abutted on the ground surface 100 Forming a joint adhesive layer (108) by applying the viscose soft modified urethane coating material waterproof material to a base surface (100) corresponding to a vertically lower portion of the abutted portion with a predetermined width; The waterproof sheet 110 is disposed on the base 100 so that the butt portion where one waterproof sheet 110 and one waterproof sheet 110 are in contact with each other is positioned above the joint adhesive layer 108 Pressing and joining the waterproof sheet 110 so that the viscose soft modified urethane coating waterproofing material forming the joint adhesive layer 108 is eluted to the abutting portion; The wings 124 formed between the cut-out 122 and the cut-out 122 are formed on both sides of the cut-out 122 by forming a plurality of cut-outs 122 at predetermined intervals along the longitudinal direction, And a scratch 126 or a wound urethane film 120 for scratching or hitting the inside of the bottom surface in a specific direction or an unspecified direction so as to improve the frictional force of the surface may be provided on any one of the waterproof sheet 110, And another waterproof sheet (110) adhere to the upper portion of the viscose soft modified urethane coating waterproofing material eluted to the abutting portion (106) to which the waterproof sheet (110) is abutted; Applying a waterproof coating to the top of the waterproof sheet (110) and the urethane film (120); And coating the upper coating film waterproofing material on the hardened waterproofing material when the waterproofing material is cured. The present invention also provides a composite waterproofing method using the viscose softened urethane coating waterproofing material.

Since the composition of the viscose soft modified urethane coating material according to the present invention is environmentally friendly due to the absence of organic volatile substances in the constitution of the composition, it has excellent temperature dependency more than the asphalt mixed product and has a heat resistance of 80 ° C or more, (Gum type). Therefore, it has excellent high elongation and elastic restoring force, which is excellent in response to the behavior of the substrate due to the behavior of the substrate and excellent followability to cracks. Also, Because it is excellent, it can be applied only by its own adhesive force without construction of primer. Since it is a two-liquid type liquid phase, it is easy to work and is not restricted by temperature, so it is convenient in construction in summer and winter. And the coating film itself has properties such as gum Because it has excellent compatibility, it can be easily adhered to conventional waterproof sheets, nonwoven fabric, glass fiber, PET, various film, waterproof layer protection material without any adhesive, so various methods can be applied in various waterproofing applications. This has an excellent effect.

Particularly, silica having an average particle diameter of 0.1 占 퐉 or less is added to the composition to maximize compactness, and a silane compound is added to the curing agent so that a more dense structure can be formed. In addition, the hydrolyzed silane compound penetrates into the pores of the concrete of the ground to block the pores, thereby ensuring the shielding function of the radon.

1 is a view showing a structure of a first embodiment of a composite waterproofing method using a viscose soft modified urethane coating material according to the present invention.
2A is a view showing a structure of a second embodiment of a composite waterproofing method using a viscose soft modified urethane coating material according to the present invention.
FIG. 2B is a view showing a structure of a second embodiment of the composite waterproofing method using the viscose soft modified urethane coating material according to the present invention. FIG.
3 is a view showing the structure of a urethane film according to the present invention.

Hereinafter, the composition ratio and manufacturing method of the viscose soft modified urethane coating material according to the present invention will be described, and viscose soft modified urethane coating waterproofing material will be described as first and second embodiments, respectively. In the first and second embodiments, Since the curing agent of the second embodiment is commonly mixed, the construction of the first embodiment will be described in detail, and a detailed description thereof will be omitted in the second embodiment.

≪ Embodiment 1 >

The viscose soft modified urethane coating material waterproofing material according to the first embodiment is a non-exposed coating film waterproofing material, which uses a polyether polyol resin having an average number average molecular weight of 3,000 and two hydroxyl groups (-OH) and three hydroxyl groups (-OH) .

By controlling the number average molecular weight, the physical properties such as elongation at break of the waterproof coating can be controlled, and the polyether polyol resin reacts with the diisocyanate component of the curing agent to induce urethane bonding.

The polyether polyol resin is preferably added in an amount of 10.5 to 12.5% by weight based on the total weight of the resin. When the amount of the polyether polyol resin is less than 10.5% by weight, a desired elongation and elastic restoring force can not be obtained. But the elastic restoring force is remarkably lowered and the flowability is improved, so that the desired mechanical properties can not be obtained and the workability is lowered.

The natural extracting oil has a property of melting in the fat channel alcohol obtained by squeezing the seed of the plant and has a light yellow viscous property. The main ingredient is contained as glyceride as ricinoleic acid, and the natural extract oil has a total weight If it is less than 4% by weight, it is impossible to obtain soft and sophisticated physical properties. If it exceeds 6% by weight, the viscosity of a desired gum type can not be obtained.

The curing accelerator, which is an organic tin compound, is added to enable rapid curing, and mainly uses a metal catalyst. In the present invention, an organic tin compound (Dibutyl tin dilaulate.

The curing accelerator is mixed with a curing agent to shorten the curing half-life when the urethane-based coating composition is completed, thereby improving the applicability in the field (reducing the time limit of the curing by increasing the curing rate) If it is less than 0.5% by weight, it does not affect the shortening of the curing half-life. If it exceeds 1% by weight, the curing rate becomes too short, and the workability is lowered.

Plasticizers are added for the purpose of increasing the elasticity and preventing cracking. Plasticizers such as ESOL N-50, ESOL N-100, and ESOL N, which are commonly used aromatic compounds (DOP, DINP, -200, etc.) are used.

When the amount of the plasticizer is less than 10% by weight, the amount of the plasticizer to be used is too small and the viscosity before curing is too high, which makes it difficult to use the plasticizer. The hardness of the cured coating film is so high that the mastic properties can not be exhibited sufficiently. If the content is more than 14% by weight, the durability of the cured coating film is very weak, and the waterproof function can not be exhibited properly.

The filler mixed in the subject matter of the first embodiment according to the present invention may be selected from commonly used ones such as alumina, calcium carbonate, slaked lime, talc, alumina and other waste materials. These fillers reduce the manufacturing cost while improving the mechanical strength Hereinafter, calcium carbonate will be described as an embodiment.

In the present invention, it is preferable to add 65 wt% to 70 wt% of the filler based on the total weight of the subject, and if the filler is less than 65 wt% Since the raw material must be further added, the cost is increased and the heat resistance is lowered due to the lowering of the bonding strength with other raw materials. On the other hand, when the content exceeds 70% by weight, the final coating film properties are hardened.

Here, the filler to be added to the subject, and silica 20% by weight of 0.1㎛ average of 100% by weight of the filler particle size less than about 30% by weight, of calcium carbonate having an average particle size of 4㎛ (CaCO 3) 30 ~ 40 % by weight, average particle diameter And 40 to 50% by weight of calcium carbonate (CaCO 3 ) of 9 탆 and containing a plurality of H, OH, or COOH functional groups and excellent in reinforcing property, the strength can be increased while maintaining the adhesion with concrete have.

The coating film waterproofing material containing only calcium carbonate alone has a disadvantage in that the strength is low due to the low reinforcing property although the difference in adhesion is not great as compared with the coating waterproofing material to which filler including silica is added.

 As described above, since the average particle diameters of the fillers are made different from each other to make the structure denser and dense, not only the hardness can be increased but also the hardness is prevented, so that the resilient restoring force is reinforced while obtaining the soft- The bonding force and the adhesive force can be prevented from being lowered.

When the amount of silica used is less than 20% by weight, the effect of the functional group obtained by using silica is insufficient. When the amount of silica is more than 30% by weight, the silica particles are very small, There is a disadvantage that it becomes worse.

On the other hand, a polyamide-based anti-settling agent added to the subject matter according to the present invention is added to prevent precipitation of raw materials such as fillers and the like having relatively large specific gravity during storage period after the subject production, If the content is less than 1% by weight, the effect of preventing sedimentation is insufficient. If the content is more than 1.5% by weight, the effect of preventing sedimentation does not increase significantly, .

The compositions of the curing agents commonly used in the first and second embodiments of the present invention will be described below.

First, the polyether polyol resin added to the curing agent is added in an amount of 60 to 66 wt% of the total weight of the curing agent, and the polyether polyol resin having a hydroxyl group (-OH) 2 and a number average molecular weight of 1000 is 8 (-OH) 2 and a polyether polyol resin having a number average molecular weight of 2000 and a hydroxyl value of 21 to 23 By weight, and a polyether polyol resin having a hydroxyl group (-OH) 3 and a number average molecular weight of 3,000 to 22% by weight.

If the content of the polyether polyol resin is less than 60% by weight, the content of the isocyanate may be increased to cause swelling or cracking. When the content of the polyether polyol resin exceeds 66% by weight, So that a phenomenon such as stickiness or uncured occurs.

The reaction stabilizer added to the curing agent is mainly used for suppressing the addition reaction other than the reaction of the reaction and controlling the rapid reaction of the reaction to obtain a more stable and standardized result. The acid additive is mainly used, When the content is less than 0.01 wt%, the reactivity can not be controlled rapidly. If the content is more than 0.06 wt%, the reaction is excessively suppressed, so that a standardized product can not be obtained.

Also, toluene diisocyanate (TDI) added to the curing agent is a compound containing an isocyanate group (-NCO). As the most commonly used compounds, toluene diisocyanate (TDI) and diphenylmethane -4,4-diisocyanate (MDI), and many other aromatic and aliphatic diisocyanate compounds are present.

The toluene diisocyanate (TDI) is an aromatic diisocyanate chemical. The polyether polyol resin can control a wide range of physical properties according to the content of each segment, and the soft segment is mainly composed of water A polyol having an average molecular weight of 500 to 5000 is used and the hard sub segment has a rigid structure due to a urethane bond capable of hydrogen bonding with a diisocyanate having an aromatic ring structure and the kind of the isocyanate and the number average molecular weight It is affected by rigidity according to change.

The toluene diisocyanate is added in an amount of 17 to 22% by weight based on the total weight of the curing agent. When the amount of the toluene diisocyanate is less than 17% by weight, curing takes a long time and uncured state may occur. It is not able to withstand the deformation due to the expansion and contraction of the tube, resulting in swelling and cracking.

When the amount of the isocyanate compound is less than 13% by weight, it is preferable that 13 to 18% by weight of methylene diphenyl diisocyanate (MDI) added to the curing agent is used. It is difficult to control the mechanical properties of the polyol used in the subject and the curing agent. On the other hand, when the content exceeds 18% by weight, it is difficult to secure surface physical properties, weatherability, and temperature dependency.

 The defoaming agent added to the curing agent is for removing bubbles. If the amount is less than 0.06 wt%, the defoaming effect is insufficient. If the defoaming agent is more than 0.1 wt%, the water repellency is inferior.

On the other hand, when the silane compound added to the curing agent according to the present invention is added in an amount of 3 to 7 wt%, the water repellency is lowered when the amount is less than 3 wt%. If the amount is more than 7 wt%, extra silane compounds remain in the composition It is not mixed with the composition material and is not preferable.

In the composition of the present invention, the silane compound imparts water repellency to the surface of the base surface and increases water tension so that water can not penetrate into the base surface by application of the composition.

Accordingly, even if the sheet or the waterproofing material positioned on the composition or the coating film waterproofing material is damaged and permeates water, the silane compound contained in the composition can not penetrate into the inside of the grounding surface, thereby maximizing the effect of waterproofing.

In addition, since the silane compound is present on the surface of the substrate and penetrates deep into the pores or voids as described above to impart water repellency to the inner wall surface of the cavity and the surface of the bridge slab, the silane compound penetrates into the isobutylsilane or isooctylsilane It is preferable to employ at least one of methoxysilane or ethoxysilane which slows the curing rate beforehand.

More preferably at least one selected from the group consisting of isobutyltriethoxysilane, isooctyltriethoxysilane, isobutyltrimethoxysilane and isooctyltrimethoxysilane.

When the subject and the curing agent are prepared as described above, it is preferable that the subject and the curing agent are mixed at a ratio of 10% by weight: 1 to 3% by weight of the subject curing agent to produce a viscose softened urethane coating waterproofing material.

If the amount of the curing agent is less than 1 wt% based on 10 wt% of the subject, the curing speed is slowed down and the cured coating film is not formed. As a result, a coating film having desired physical properties can not be obtained. It becomes difficult to obtain a gum type coating film, and the elasticity and the stability are remarkably lowered and the workability is lowered

≪ Embodiment 2 >

The viscose soft modified urethane coating material waterproofing material according to the second embodiment is an exposed coating film waterproofing material having a number average molecular weight of 1,000 to 5,000 and a polyether polyol resin having two hydroxyl groups (-OH) and three hydroxyl groups (-OH) use.

The polyether polyol resin is preferably added in an amount of from 19 to 25% by weight based on the total weight of the composition. If it is less than 19% by weight, the desired elongation and reactivity can not be obtained. The workability is deteriorated.

Here, the polyether polyol resin preferably has a functional group (-OH) 2, a polyether polyol resin having a number average molecular weight of 1,000 of 7 to 9% by weight, a functional group (-OH) 3 and a polyether polyol resin having a number average molecular weight of 5000 13 to 16% by weight.

The polyether polyol resin is superior in mechanical properties to those used in the first embodiment. The polyether polyol resin is obtained by using a mixture of ethylene oxide (EO) and propylene oxide (PO) at random, , The physical properties such as the strength of the waterproof coating film and the elongation at break are excellent. The polyether polyol resin reacts with the diisocyanate component of the curing agent to induce a urethane bond.

It is preferable that the polyether polyol resin is added in an amount of 20 to 25% by weight based on the total weight of the subject. When the content is less than 20% by weight, the content of the polyol resin is small and the amount of the curing agent equivalent in the curing agent- It is impossible to obtain the desired elongation and elastic restoring force. If it exceeds 25% by weight, the elongation ratio is increased as the amount of the equivalent per equivalent of the main component and the curing agent becomes excessive, but the elastic restoring force is remarkably decreased, Mechanical properties can not be obtained.

The natural extracted oil added to the subject matter of the second embodiment has a property of melting in fat channel alcohol obtained by squeezing the seeds of plants, has a light yellow viscous property, the main ingredient is contained as ricinoleic acid as glyceride, The natural extracting oil is preferably 6 to 10% by weight based on the total weight of the subject matter. If less than 6% by weight, the gum-type soft and soft physical properties can not be obtained. If the amount is more than 10% by weight, Viscosity can not be obtained.

The curing accelerator, which is an organic tin compound, is added to enable rapid curing, and mainly uses a metal catalyst. In the present invention, an organic tin compound (Dibutyl tin dilaulate.

The curing accelerator is mixed with the curing agent to shorten the curing half-life when the urethane-based coating composition is completed, thereby improving the applicability in the field (reducing the time limit of the curing by increasing the curing rate) If it is less than 0.01% by weight, it does not affect the shortening of the curing half-life. If it exceeds 0.04% by weight, the curing rate becomes too short, and the workability is lowered.

Plasticizers are added for the purpose of increasing the elasticity and preventing cracking. Plasticizers such as ESOL N-50, ESOL N-100, and ESOL N, which are commonly used aromatic compounds (DOP, DINP, -200, etc.) are used.

The plasticizers have an effect of improving the low temperature properties, improving the adhesion function, improving the viscosity stability, and improving the compatibility. When the content of the plasticizer is less than 5% by weight, the plasticizers are too hard to use because of too high viscosity, The hardness of the cured coating film is so high that the mastic properties can not be exhibited sufficiently. If 9 wt% or more is added, the durability of the cured coating film is very weak due to the excessive use amount, and the waterproof function can not be exhibited properly.

The filler mixed in the subject matter of the second embodiment according to the present invention can be selected from commonly used ones such as abrasive powder, calcium carbonate, calcium hydroxide, talc, talc, alumina and other waste materials. These fillers reduce the manufacturing cost while improving the mechanical strength And the like.

In the present invention, it is preferable to add 55 wt% to 65 wt% of the filler based on the total weight of the subject, and when the filler is less than 55 wt% The cost is increased and the bonding strength with other raw materials is lowered, so that the heat resistance is lowered. On the other hand, when it exceeds 65 wt%, the bonding force and the adhesive force are lowered.

The filler added to the subject is a mixture of 20 wt% to 30 wt% of silica having an average particle diameter of 0.1 탆 or less, 30 to 40 wt% of calcium carbonate (CaCO 3 ) having an average particle diameter of 4 탆, and an average particle diameter of 9 By using silica having 40 to 50 wt% of calcium carbonate (CaCO 3 ) 탆 and containing a plurality of H, OH, or COOH functional groups and excellent reinforcing property, the strength can be enhanced while maintaining the adhesion with concrete .

The coating film waterproofing material containing only calcium carbonate alone has a disadvantage in that the strength is low and the structure is relatively inadequate because the coating strength is low compared with the coating waterproofing material to which filler including silica is added but the reinforcement is low. .

 As described above, since the average particle diameters of the fillers are made different from each other to make the structure denser and dense, not only the hardness can be increased but also the hardness is prevented, so that the resilient restoring force is reinforced while obtaining the soft- The bonding force and the adhesive force can be prevented from being lowered.

When the amount of silica used is less than 20% by weight, the effect of the functional group obtained by using silica is insufficient. When the amount of silica is more than 30% by weight, the silica particles are very small, There is a disadvantage that it becomes worse.

On the other hand, a polyamide-based anti-settling agent added to the subject matter according to the present invention is added to prevent precipitation of raw materials such as fillers and the like having relatively large specific gravity during storage period after the subject production, If the content is less than 1% by weight, the effect of preventing sedimentation is insufficient. If the content is more than 1.5% by weight, the effect of preventing sedimentation does not increase significantly, .

The constitution of the curing agent of the second embodiment according to the present invention has been described in the first embodiment, and a detailed description thereof will be omitted.

When the subject and the curing agent are prepared as described above, the subject and the curing agent are preferably mixed with the curing agent at a ratio of 10% by weight: 1 to 3% by weight to prepare a viscose softened urethane coating waterproofing material.

If the amount of the curing agent is less than 1% by weight based on 10% by weight of the subject, the curing rate may become slow and the coating may be broken. If the amount of the curing agent is more than 3% by weight,

A method for manufacturing a viscose soft modified urethane coating material according to the present invention will be described below.

First, 10.5 to 12.5% by weight of a polyether polyol resin, 4 to 6% by weight of a natural extract oil and 10 to 14% by weight of a plasticizer are mixed and stirred at room temperature at 950 to 1,100 rpm for 5 minutes.

Then, 0.5 to 1% by weight of a curing accelerator as the organic tin compound is added and stirred for 10 minutes.

When the curing accelerator is mixed and stirred as described above, 0.5 to 1.5% by weight of an anti-settling agent is added and stirred at 1,400 to 1,500 rpm for 20 minutes.

After the sedimentation inhibitor is mixed, 10 to 15% by weight of calcium carbonate having a particle size of 4 탆 as a filler is first charged, then 55 to 65% by weight of calcium carbonate having an average particle diameter of 9 탆 is added, Mixing at 2,000 rpm for at least 30 minutes to prepare the subject.

On the other hand, a polyether polyol resin having a hydroxyl group (-OH) 2, a number average molecular weight of 1000, a polyether polyol resin of 8 to 10% by weight, a hydroxyl group (-OH) 2, 21 to 23% by weight of a polyether polyol resin having a number average molecular weight of 3,000, 22 to 23% by weight of a polyether polyol resin having a hydroxyl group (-OH) 3 and a number average molecular weight of 3000, Lt; / RTI > for 5 minutes.

After stirring for 5 minutes, 0.01 to 0.06% by weight of the reaction stabilizer was added, and after 10 minutes, 17 to 22% by weight of toluene diisocyanate (TDI) and methylene diphenyl diisocyanate (MDI, Methylene diphenyl diisocyanate) in an amount of 13 to 18% by weight in order to confirm the exothermic state due to the reaction.

When the heat generated during the reaction is stopped, the reaction is maintained at 80 ° C to 90 ° C for 2 to 4 hours. When the residual NCO remaining after the reaction is 10 to 12% by weight, cooling is performed using cooling water 0.06 to 0.1% by weight of an antifoaming agent is added, and the mixture is cooled to 60 DEG C and filtered through an 80 mesh filter net to prepare a curing agent.

When the subject and the curing agent are prepared as described above, the step of mixing the subject and the curing agent at a ratio of 10: 1 to 3% by weight is performed to produce a viscose softened urethane coating material.

It is preferable to use calcium carbonate (CaCO 3 ), cray, hempite, bentonite and the like.

Calcium carbonate is the largest salt in the natural world and has various forms such as marble, calcite, wire, limestone, chalk, gypsum, shell, etc. Colorless crystals or white solid with specific gravity of 2.9 and decomposition at 800 ℃ Carbon dioxide is generated and quicklime can be obtained.

The clay is an aggregate of fine particles generated by the weathering and denaturation of rocks and minerals, that is, particles of fine minerals of usually 2 탆 or less. It is used for a wide range of applications such as ceramics, refractories, foundry sand, paper additives, various fillers, adsorbents.

The seaweed is dense clay or clay minerals composed of gravel, silicate, and crystalline water, and is white or grayish white, light and opaque.

The bentonite is a clay mineral originating from volcanic ash-derived tuff and fine vitreous rhyolite. It mainly uses montmorillonite, which is mainly a bedded silicate mineral. The bentonite absorbs water and swells to several times its original volume and has a high viscosity. .

The combined waterproofing method using the viscose soft modified urethane coating material according to the present invention will be described with reference to the first and second embodiments.

≪ Embodiment 1 >

First, the viscose soft modified urethane coating waterproofing material according to the present invention is applied to the base 100 to form the first waterproof layer 102, whereby the base 100 (concrete) The porosity permeates the hydrolyzed silane compound of the coating film waterproofing agent to increase the strength of the concrete and to prevent radon emission.

At least one waterproof sheet 110 made of any one of an improved asphalt sheet and a synthetic polymer based sheet is attached to the upper part of the first waterproof layer 102 in an abutting manner. As shown in FIG. 1, The waterproof sheet 110 is pressurized and abutted to form a second waterproofing layer 104 so that the modified urethane coating waterproofing material is eluted (raised) in a gap formed at the abutted portion or the abutted portion.

1, in the waterproofing method of the present invention, a urethane film 120 is bonded to an upper portion of the joint portion 106 or the joint portion to reinforce the joint portion. The urethane film 120, which is made of a urethane material, 3, the incision 122 is formed at a predetermined depth from the both sides toward the inside, and a plurality of incisions 122 are continuously formed at regular intervals along the longitudinal direction, And the wing portion 124 is formed between the folding portion 122 and the folding portion 122.

A plurality of wings 124 are continuously formed on both sides of the urethane film 120 to prevent the both ends of the urethane film 120 from being rolled up when the urethane film 120 is attached or bonded , The self-bonding force is improved, and the urethane film 120 can be prevented from dropping off.

That is, as shown in FIG. 3, the wing portion 124 is integrally formed with one end or the other end of the urethane film 120, and has an individual property capable of freely folding or bending in the upward and downward directions. Since each wing portion 124 autonomously expands and contracts with respect to the behavior of the base surface 100, it is possible to prevent the breakage phenomenon due to natural compliance with the behavior of the base surface 100.

3 is a view showing the bottom surface of the urethane film 120 in an upward direction. Inside the bottom surface of the urethane film 120 (the portion shown at the top in the drawing is a bottom surface The scratch 126 or scratches are generated by scratching or striking in a specific direction or an unspecific direction so as to improve the surface frictional force on the inner side of the bottom surface and thereby to prevent the surface of the urethane film 120, The eluted coating film waterproofing material penetrates the scratch 126 or the scars of the urethane film 120 to further reinforce the bonding force.

If the urethane film 120 can not be attached only by the amount of the coating film waterproofing agent eluted as described above, the viscose soft modified urethane coating waterproofing material or the high viscosity urethane (urethane sealant, etc.) according to the present invention is further applied to the eluted coating film waterproofing material The urethane film 120 may be adhered to the lower surface of the urethane film 120 so that the viscose soft modified urethane coating waterproofing material according to the present invention may be applied to the bottom surface of the urethane film 120 Alternatively, an adhesive layer may be formed on the bottom surface of the urethane film 120 so that the adhered urethane film 120 is adhered thereto.

Since the urethane film 120 according to the present invention is more elongated than the nonwoven fabric or the glass fiber, the urethane film 120 according to the present invention can be elastically contracted by stretching or the like due to the behavior of the base 100, , It is possible to prevent the breakage phenomenon at the joint portion 106 or the joint portion, which has been the biggest problem in the waterproofing method.

Accordingly, after the second waterproof layer 104 is formed as described above, the step of pressing and bonding the urethane film 120 to the upper portion of the coating film waterproofing material eluted to the joint portion 106 is performed to reinforce the joint portion It will be.

The step of forming a third waterproof layer by coating the waterproof sheet 110 and the urethane film 120 on the upper part of the waterproof sheet 110 and the urethane film 120 may be performed. When the waterproof sheet is cured, The composite waterproofing method using the viscose softened urethane coating waterproofing material is completed.

Herein, the above-mentioned middle-floor coating film waterproofing material and the top coat waterproofing material can be generally used materials used in waterproofing method.

Meanwhile, the second embodiment of the combined waterproofing method using the viscose soft modified urethane coating material according to the present invention may be referred to as an insulation method in other words.

≪ Embodiment 2 >

As shown in FIG. 2, the waterproof sheet 110 made of any one of the modified asphalt sheet or the synthetic polymer based sheet and the other waterproof sheet 110 are brought into contact with each other on the surface 100, The viscose soft modified urethane coating waterproofing material of the present invention is applied on the base surface 100 corresponding to the vertically lower portion of the abutted portion to have a constant width to form the joint adhesive layer 108 as shown in FIG.

A waterproof sheet 110 is placed on the base 100 so that a butt portion where one waterproof sheet 110 and another waterproof sheet 110 abut against each other is applied to the base surface 100 The waterproof sheet 110 is pressed so that the viscose soft modified urethane coating waterproofing material forming the joint adhesive layer 108 is eluted (bulged) so as to be positioned above the joint adhesive layer 108, Perform the step of connecting together.

Therefore, the abutted portion of the waterproof sheet 110 is primarily bonded by the viscose soft modified urethane coating material waterproof material according to the present invention (joint or joint portion 106).

As described above, when the waterproofing material is eluted at the abutting portion of the waterproof sheet 110, a urethane film 120 (see FIG. 2) having a plurality of wing portions 124 formed on both sides, ) Of the urethane film 120 is pressed down to pressurize the urethane film 120 to attach the urethane film 120 to the coating film waterproofing material.

If the urethane film 120 can not be attached only by the amount of the coating film waterproofing agent eluted as described above, the viscose soft modified urethane coating waterproofing material or the high viscosity urethane (urethane sealant, etc.) according to the present invention is further applied to the eluted coating film waterproofing material The urethane film 120 may be adhered to the lower surface of the urethane film 120 so that the viscose soft modified urethane coating waterproofing material according to the present invention may be applied to the bottom surface of the urethane film 120 Alternatively, an adhesive layer may be formed on the bottom surface of the urethane film 120 so that the adhered urethane film 120 is adhered thereto.

The step of coating the waterproof sheet 110 and the urethane film 120 on the top of the waterproof sheet 110 and applying the top coat waterproofing material to the top of the cured middle coat waterproofing material when the waterproofing material is cured The composite waterproofing method using viscose soft modified urethane coating waterproofing material is completed.

In the composite waterproofing method using the viscose soft modified urethane coating material waterproofing material of the present invention, the coating waterproofing agent is applied to the entire base surface 100 as in the first embodiment, and the hydrolyzed silane compound blocks the concrete pores of the base surface 100 It is possible to secure the shielding function of the radon as well as to enhance the concrete of the subject. In the same manner as the second embodiment, a coating film waterproofing material is applied only partially on the ground surface 100, The Urethane film 120 is attached to the waterproof sheet 110 and the coating film waterproofing material eluted, thereby improving the bonding strength of the abutting area. .

In particular, since the urethane film 120 according to the present invention is excellent in elongation, unlike the nonwoven fabric or the glass fiber, since the shrinkage and stretching are free, the phenomenon of breakage due to the behavior of the ground surface 100 is prevented in advance, The defective incidence rate can be reduced even after a long period of time.

100: base surface 102: first waterproof layer
104: second waterproof layer 106:
108: joint adhesive layer 110: waterproof sheet
120: urethane film 122: sectioning
124: wing portion 126: scratch

Claims (5)

A polyether polyol resin, 10 to 12.5 weight% of a polyether polyol resin, 4 to 6 weight% of a natural extract oil, 0.5 to 1 weight% of a hardening accelerator as an organotin compound, 10 to 14 weight% of a plasticizer, Wherein the filler contained in the subject is selected from the group consisting of 20 wt% to 30 wt% of silica having an average particle size of 0.1 탆 or less in 100 wt% of the filler, 30 to 40% by weight of calcium carbonate (CaCO 3 ) of 4 탆 and 40 to 50% by weight of calcium carbonate (CaCO 3 ) having an average particle diameter of 9 탆;
(-OH) 2, a number average molecular weight of 1000, and a polyether polyol resin having a number average molecular weight of 2000 of 9.5 to 12% by weight, and a hydroxyl group (-OH) -OH) 2, 21 to 23% by weight of a polyether polyol resin having a number average molecular weight of 3000 and 22 to 23% by weight of a polyether polyol resin having a hydroxyl group (-OH) 3 and a number average molecular weight of 3000 60 to 66% by weight of a polyether polyol resin, 0.01 to 0.06% by weight of a reaction stabilizer, 17 to 22% by weight of toluene diisocyanate (TDI), methylene diphenyl diisocyanate (MDI) Viscose soft modified urethane coating waterproofing material obtained by mixing a curing agent in an amount of 1 to 18% by weight, an antifoaming agent in an amount of 0.06 to 0.1% by weight, and a silane compound in an amount of 3 to 7% . (-OH) 2, a polyether polyol resin having a number average molecular weight of 1000 of 7 to 9% by weight, a polyether polyol resin having a functional group (-OH) 3 and a number average molecular weight of 5000 of 13 to 16% by weight A process for producing a polyurethane resin composition, which comprises 19 to 25% by weight of a polyether polyol resin, 6 to 10% by weight of a natural extract oil, 0.01 to 0.04% by weight of a curing accelerator as an organotin compound, 5 to 9% by weight of a plasticizer, Wherein the filler contained in the subject is selected from the group consisting of 20 wt% to 30 wt% of silica having an average particle size of 0.1 탆 or less and 100 wt% of an average particle size of 4 and calcium carbonate (CaCO 3) 30 ~ 40% by weight of ㎛, calcium carbonate having an average particle size of 9㎛ (CaCO 3) consists of 40 to 50% by weight;
(-OH) 2, a number average molecular weight of 1000, and a polyether polyol resin having a number average molecular weight of 2000 of 9.5 to 12% by weight, and a hydroxyl group (-OH) -OH) 2, 21 to 23% by weight of a polyether polyol resin having a number average molecular weight of 3000 and 22 to 23% by weight of a polyether polyol resin having a hydroxyl group (-OH) 3 and a number average molecular weight of 3000 60 to 66% by weight of a polyether polyol resin, 0.01 to 0.06% by weight of a reaction stabilizer, 17 to 22% by weight of toluene diisocyanate (TDI), methylene diphenyl diisocyanate (MDI) Viscose soft modified urethane coating waterproofing material obtained by mixing a curing agent in an amount of 1 to 18% by weight, an antifoaming agent in an amount of 0.06 to 0.1% by weight, and a silane compound in an amount of 3 to 7% . 10.5 to 12.5% by weight of a polyether polyol resin, 4 to 6% by weight of a natural extract oil and 10 to 14% by weight of a plasticizer were mixed and stirred at room temperature at 950 to 1,100 rpm for 5 minutes, 0.5 to 1% by weight of a curing accelerator as a compound was added thereto and stirred for 10 minutes. Subsequently, 0.5 to 1.5% by weight of an anti-settling agent was added thereto and stirred at 1,400 to 1,500 rpm for 20 minutes. Then, calcium carbonate (CaCO 3 ) 20 to 30% by weight of silica having an average particle diameter of 0.1 탆 among 100% by weight of the filler is first charged and 30 to 40% by weight of calcium carbonate (CaCO 3 ) having an average particle diameter of 4 탆 is added, Subsequently, 40 to 50% by weight of calcium carbonate (CaCO 3 ) having an average particle diameter of 9 μm is added, followed by mixing at 1,500 to 2,000 rpm for at least 30 minutes to prepare a subject;
(-OH) 2, a polyether polyol resin having a number average molecular weight of 1,000 of 8 to 10% by weight, a hydroxyl group (-OH) 2, and a number average molecular weight of 2000 of 9.5 to 12% ), 2 to 22% by weight of a polyether polyol resin having a number average molecular weight of 3,000 and 21 to 23% by weight, a hydroxyl group (-OH) 3 and a number average molecular weight of 3000, To 7% by weight, and the mixture was stirred at 75 to 85 rpm for 5 minutes. Then, 0.01 to 0.06% by weight of a reaction stabilizer was added thereto. After 10 minutes, 17 to 22% by weight of toluene diisocyanate (TDI, 13 to 18% by weight of MDI (methylene diphenyl diisocyanate) are sequentially charged to confirm the exothermic state. When the exotherm is stopped, the mixture is heated and maintained at 80 to 90 DEG C for 2 to 4 hours to obtain a residual NCO of 10 to 12 wt% %, Followed by cooling with cooling water In the step of Posay 0.06 ~ 0.1 weight%, and filtered by the filtering net 80mesh After cooling to 60 ℃ producing a curing agent and; A method for manufacturing a viscose soft modified urethane coating material, comprising the steps of: mixing a base and a curing agent in a ratio of 10: 1 to 3: 1 by weight. 1. A viscoelastic modified urethane coating material waterproofing material according to claim 1 or 2, which is applied to a surface (100) to form a first waterproofing layer (102);
At least one waterproof sheet (110) made of any one of an improved asphalt sheet and a synthetic polymer based sheet is attached to the upper part of the first waterproof layer (102) in an abutting manner, wherein the viscose soft modified urethane coating waterproofing material Forming a second waterproof layer (104) by pressing and joining the waterproof sheet (110) so as to form a second waterproof layer (104);
The wings 124 formed between the cut-out 122 and the cut-out 122 are formed on both sides of the cut-out 122 by forming a plurality of cut-outs 122 at predetermined intervals along the longitudinal direction, And a scratch 126 or a wound urethane film 120 for scratching or hitting the inside of the bottom surface in a specific direction or an unspecified direction so as to improve the frictional force of the surface may be provided on any one of the waterproof sheet 110, And another waterproof sheet (110) adhere to the upper portion of the viscose soft modified urethane coating waterproofing material eluted to the abutting portion (106) to which the waterproof sheet (110) is abutted;
Forming a third waterproof layer by applying a middle coat waterproofing material to the upper portion of the waterproof sheet 110 and the urethane film 120;
And applying a top coat waterproofing material to an upper portion of the third waterproofing layer when the middle coatwaterproofing material is cured. The waterproof sheet 110 made of any one of the modified asphalt sheet or the synthetic polymer based sheet and the other waterproof sheet 110 are brought into contact with each other to measure the abutted portion on the base surface 100, Forming a joint adhesive layer (108) by applying a viscose soft modified urethane coating waterproofing material according to any one of claims 1 to 3 on a surface of the substrate (100) at a predetermined width;
The waterproof sheet 110 is disposed on the base 100 so that the butt portion where one waterproof sheet 110 and one waterproof sheet 110 are in contact with each other is positioned above the joint adhesive layer 108 Pressing and joining the waterproof sheet 110 so that the viscose soft modified urethane coating waterproofing material forming the joint adhesive layer 108 is eluted to the abutting portion;
The wings 124 formed between the cut-out 122 and the cut-out 122 are formed on both sides of the cut-out 122 by forming a plurality of cut-outs 122 at predetermined intervals along the longitudinal direction, And a scratch 126 or a wound urethane film 120 for scratching or hitting the inside of the bottom surface in a specific direction or an unspecified direction so as to improve the frictional force of the surface may be provided on any one of the waterproof sheet 110, And another waterproof sheet (110) adhere to the upper portion of the viscose soft modified urethane coating waterproofing material eluted to the abutting portion (106) to which the waterproof sheet (110) is abutted;
Applying a waterproof coating to the top of the waterproof sheet (110) and the urethane film (120);
And applying a top coat waterproofing material to an upper portion of the cured middle coat waterproofing material when the middle coatwaterproofing material is cured.
KR1020150094176A 2015-07-01 2015-07-01 Construction method for Viscous soft modified polyurethane waterproofing material KR101564242B1 (en)

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KR101839613B1 (en) 2017-10-16 2018-03-16 주식회사 에이피텍 Spray coat type 2-liquid type NK safety primer surfacepreparation compound composition and polyurea waterproofing and anticorrosion method using the same
CN110157321A (en) * 2019-06-25 2019-08-23 河南城建学院 A kind of environment-friendly type polyurethane waterproofing paint
KR20200084639A (en) * 2019-01-03 2020-07-13 주식회사 케이씨씨 Eco-friendly sealant composition
KR102222268B1 (en) * 2020-10-14 2021-03-04 삼성엠에프씨 주식회사 Non-overlapping special adhesive sheet and Construction method thereof

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JP2002363243A (en) 2001-06-08 2002-12-18 Asahi Glass Co Ltd Two-pack type polyurethane-based curable composition
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Publication number Priority date Publication date Assignee Title
CN107722228A (en) * 2017-09-07 2018-02-23 河南金拇指防水科技股份有限公司 A kind of superpower caking property polyurethane waterproof material manufacture method and waterproof material
KR101839613B1 (en) 2017-10-16 2018-03-16 주식회사 에이피텍 Spray coat type 2-liquid type NK safety primer surfacepreparation compound composition and polyurea waterproofing and anticorrosion method using the same
KR20200084639A (en) * 2019-01-03 2020-07-13 주식회사 케이씨씨 Eco-friendly sealant composition
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CN110157321A (en) * 2019-06-25 2019-08-23 河南城建学院 A kind of environment-friendly type polyurethane waterproofing paint
KR102222268B1 (en) * 2020-10-14 2021-03-04 삼성엠에프씨 주식회사 Non-overlapping special adhesive sheet and Construction method thereof

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