KR101891721B1 - Fluorine resin sheet exposed waterproof anticorrosion construction method and construction structure thereof - Google Patents

Abstract

It is an object of the present invention to provide a method of constructing a fluoropolymer sheet exposed waterproofing system that is exposed to the roof of a large-scale factory, a pharmaceutical company factory, and a semiconductor manufacturing factory, and extends a waterproof performance and a cycle of repairing and repairing. The fluororesin sheet exposed waterproofing method according to an embodiment of the present invention includes the steps of arranging a base surface made of a concrete structure, applying a primer to form a primer layer, and applying an adhesive to the primer layer to form an adhesive layer A second step of laminating a first sheet and a second sheet, which are formed by adhering a fluororesin sheet and a synthetic resin sheet, to the adhesive layer by lapping; and a second step of adhering the first sheet and the second sheet, And a third step of attaching the first closing member using an adhesive.

Description

TECHNICAL FIELD The present invention relates to a fluororesin sheet exposed waterproofing method, and a fluororesin sheet exposed waterproofing method, and a fluororesin sheet-

The present invention relates to a fluoropolymer sheet exposure waterproofing method for constructing a waterproofing sheet on a base surface exposed to an external environment such as a roof, and a construction structure thereof.

Leakage of roofs from large factories, pharmaceutical companies and semiconductor manufacturing plants can cause fatal problems. Waterproofing of such buildings requires reliable waterproofing even if the cost is relatively high.

For example, a roof waterproofing and repairing method includes a method of applying a urethane paint or a glass fiber reinforced polyester resin, an asphalt sheet, a method of attaching a butyl rubber sheet or a polyvinyl chloride sheet, and the like.

However, in the method of applying the urethane paint or the polyester resin, the work from the adjustment of the paint to the application is troublesome, the operator needs high skill, the construction period is long, and the working environment is poor due to the odor of the paint.

The way of attaching the asphalt sheet deteriorates the waterproof performance as the oil component blows over time. The method of attaching a rubber sheet or a polyvinyl chloride sheet is relatively easy to work but has poor adhesion to a rooftop surface, which may cause peeling and water leakage at the joint between the sheet and the sheet.

In addition, these methods can significantly shorten the lifetime of the construction structure when exposed to the external environment and ultraviolet rays. As a result, the number of repair work and the period of repair work are shortened. In view of the substantial long time, the cost of the waterproof type construction is increased.

It is an object of the present invention to provide a method of constructing a fluoropolymer sheet exposed waterproofing system that is exposed to the roof of a large-scale factory, a pharmaceutical company factory, and a semiconductor manufacturing factory, and extends a waterproof performance and a cycle of repairing and repairing. It is another object of the present invention to provide a construction structure that is constructed by the fluororesin sheet exposure waterproofing method.

The fluororesin sheet exposed waterproofing method according to an embodiment of the present invention includes the steps of arranging a base surface made of a concrete structure, applying a primer to form a primer layer, and applying an adhesive to the primer layer to form an adhesive layer A second step of laminating a first sheet and a second sheet, which are formed by adhering a fluororesin sheet and a synthetic resin sheet, to the adhesive layer by lapping; and a second step of adhering the first sheet and the second sheet, And a third step of attaching the first closing member using an adhesive.

The second step may further comprise a twenty-first step of fixing the first sheet and the second sheet overlapped by using the fixing member to the base surface.

In the second step, a joint adhesive layer may be further formed on the end of the first sheet to connect to the adhesive layer, and an end of the second sheet may be overlapped on the joint adhesive layer.

In the third step, a first finishing member formed by applying an adhesive to the fluororesin sheet may be used.

The fluoropolymer sheet exposed waterproofing method according to an embodiment of the present invention is characterized in that when the floor surface is a roof top parapet, an end primer layer and an end adhesive layer are formed on the parapet end, A third sheet formed by adhering the resin sheet and the synthetic resin sheet is fixed to the parapet end with a fixing member and a second closing member is attached to the end of the fixing member and the third sheet using an adhesive, And further connecting to the layer.

In the fluoropolymer sheet exposed waterproofing method according to an embodiment of the present invention, when the floor surface is a roof railing side wall, a receiving groove is formed in the side wall of the parapet, and a receiving primer layer and a receiving adhesive layer A fourth sheet formed by adhering a fluororesin sheet and a synthetic resin sheet on the receiving adhesive layer is fixed to the receiving groove with a fixing member and an adhesive is used on the end of the fixing member and the fourth sheet And a fifth step of attaching a third closing member and further connecting the third closing member to the receiving adhesive layer.

The fluoropolymer sheet exposed waterproofing method according to an embodiment of the present invention may further include a sixth step of filling the receiving recess with a silicone caulking material to finish the sealing.

Wherein the second step includes the steps of: applying a first sheet to the floor at a portion where the floor and the sidewall intersect at right angles; installing a second sheet on the sidewall; bending the second sheet So that the first sheet can be overlapped.

The third step may fix the end portions of the first sheet and the second sheet to the floor using a fixing member.

Wherein the second step comprises installing a first sheet on the bottom and a second sheet and a third sheet on the two sidewalls, respectively, at a portion where the bottom surface and the two sidewalls intersect at right angles, The second sheet and the third sheet may be folded at the bottom side so as to be overlapped with the first sheet.

The third step may further include a 31st step of attaching a fourth closing member having three sides corresponding to the crossing structure of the first sheet, the second sheet and the third sheet.

The fluororesin sheet exposure waterproofing method according to an embodiment of the present invention includes a step 10 of arranging a base surface made of a concrete structure, a first sheet formed by adhering a fluororesin sheet and a synthetic resin sheet to the base surface, A twentieth step of laminating the second sheet by lapping, a step 30 of fixing the end portions of the first sheet and the second sheet overlapped by using the fixing member to the base surface, And a fourth step of attaching the first closing member using an adhesive on the fixing member and the step (40).

In the step 40, a first finishing member formed by applying an adhesive to the fluororesin sheet may be used.

The fluoropolymer sheet exposed waterproofing construction structure according to an embodiment of the present invention includes a primer layer formed by applying a primer to a surface of a concrete structure to form a base, an adhesive layer formed by applying an adhesive to the primer layer, A first sheet and a second sheet formed by adhering a fluororesin sheet and a synthetic resin sheet to an adhesive layer and adhered to each other at an end portion by lapping, and a first sheet and a second sheet adhered to each other by using an adhesive on the end portions of the first sheet and the second sheet, 1 closing member.

According to an embodiment of the present invention, the fluororesin sheet exposed waterproofing construction structure may further include a fixing member fixing the end portions of the first sheet and the second sheet overlapping to the base surface.

The fluororesin sheet exposed waterproofing construction structure according to an embodiment of the present invention may further include a joint adhesive layer further formed at an end of the first sheet, wherein an end of the second sheet is connected to the adhesive layer, Can be superimposed on the joint adhesive layer.

The first closing member may be formed by applying an adhesive to the fluororesin sheet.

The fluoropolymer sheet exposed waterproofing construction structure according to an embodiment of the present invention is characterized in that when the floor surface is a roof topped parapet, an end primer layer and an end adhesive layer formed on the parapet end portion, A third sheet formed by adhering a sheet and a synthetic resin sheet and fixed to the parapet end by a fixing member, and a third sheet attached by using an adhesive on the end portion of the fixing member and the third sheet and further connected to the end adhesive layer 2 closing member.

The fluoropolymer sheet exposed waterproof construction structure according to an embodiment of the present invention is characterized in that when the floor surface is a roof railing side wall, a receiving groove is formed in the side wall of the parapet, and a receiving primer layer formed in the receiving groove and a receiving adhesive A fourth sheet formed by adhering a fluororesin sheet and a synthetic resin sheet on the receiving adhesive layer and fixed to the receiving groove by a fixing member, and a fourth sheet fixed on the end of the fixing member and the fourth sheet using an adhesive, And a third closing member which is further connected to the receiving adhesive layer.

The fluororesin sheet exposed waterproofing construction structure according to an embodiment of the present invention may further include a silicone caulking material filled in the receiving recess to be finished.

A first sheet is installed on the floor at a portion where the floor and the side wall intersect at right angles, a second sheet is installed on the side wall, and the second sheet is bent at the bottom side, As shown in FIG.

The fluororesin sheet exposed waterproofing construction structure according to an embodiment of the present invention may further include a fixing member fixing the end portions of the first sheet and the second sheet to the floor.

A second sheet and a third sheet are provided on the two sidewalls, and the second sheet and the second sheet are disposed on the bottom, respectively, at a portion where the bottom surface and the two sidewalls cross at right angles, And the third sheet may be bent at the bottom side so as to be overlaid on the first sheet.

The fluororesin sheet exposed waterproofing construction structure according to an embodiment of the present invention may further include a fourth finishing member attached with three faces corresponding to the cross structure of the first sheet, the second sheet and the third sheet .

The first sheet and the second sheet may further include a heat insulating layer adhered to the synthetic resin sheet on the opposite side of the fluororesin sheet.

The heat insulating layer may be formed of one of an EVA foaming material, PE, a silver foil, a urethane foaming material, a nonwoven fabric, and a PE foaming material.

The first sheet and the second sheet may include a glass fiber woven fabric, and a fluororesin layer formed on both sides of the glass fiber woven fabric by impregnating the glass fiber woven fabric with a fluororesin.

The fluoropolymer sheet exposed waterproofing construction structure according to an embodiment of the present invention includes a base surface formed of a concrete structure, a first sheet formed by adhering a fluororesin sheet and a synthetic resin sheet to the base surface, A fixing member for fixing the end portion of the first sheet and the second sheet overlapped to the base surface, and a fixing member for fixing the end portion of the first sheet and the second sheet, And a closing member.

The first closing member may be formed by applying an adhesive to the fluororesin sheet.

In an embodiment of the present invention, a fluororesin sheet and a synthetic resin sheet are adhered to each other to form a waterproof type sheet (first and second sheets), and the first and second sheets are overlapped (first, second, third, It can effectively be applied to the roof of large-scale factories, pharmaceutical factories and semiconductor manufacturing factories effectively. By the fluororesin sheet having ultraviolet rays, ozone and strong resistance to the external environment, the performance of the waterproof method can be improved, and the number of repairs and maintenance cycle can be extended.

1 is a perspective view showing a fluororesin sheet exposure waterproofing method according to a first embodiment of the present invention and a manufacturing process of a waterproofing sheet applied to the construction structure.
2 is a cross-sectional view of a fluororesin sheet exposure waterproofing method according to a first embodiment of the present invention and a step of forming a primer layer and an adhesive layer after the surface finishing in the construction structure.
3 is a cross-sectional view of a step of applying a first sheet on the adhesive layer of Fig.
4 is a cross-sectional view of a step of forming a joint adhesive layer at the end of the first sheet of Fig.
Fig. 5 is a cross-sectional view of the step of constructing the second sheet on the end of the first sheet, the joint adhesive layer and the adhesive layer of Fig. 4;
6 is a cross-sectional view of a step of installing a fixing member in a portion where the first sheet and the second sheet overlap in Fig.
7 is a cross-sectional view of the step of installing the closure member on the fixing member of Fig.
8 is a cross-sectional view of a fluoropolymer sheet exposed waterproofing method applied to a roof railing end and a construction structure thereof.
9 is a cross-sectional view of a fluoropolymer sheet exposed waterproofing method applied to roof railing side walls and a construction structure thereof.
10 is a cross-sectional view of a fluoropolymer sheet exposed waterproofing method and its construction applied to a portion where a floor meets a sidewall on a roof.
FIG. 11 is a cross-sectional view of a fluoropolymer sheet exposed waterproofing method and its construction applied to a floor where two sidewalls meet on the roof.
12 is a cross-sectional view of a fluororesin sheet exposure waterproofing method and its construction according to a second embodiment of the present invention.
13 is a cross-sectional view of a fluororesin sheet exposure waterproofing method and its construction structure according to a third embodiment of the present invention.
14 is a photograph of a surface of a fluororesin sheet (polytetrafluoroethylene film) produced according to Example 1. Fig.
15 is a photograph of a surface of a fluororesin sheet (polytetrafluoroethylene film) produced according to Example 2. Fig.
16 is a photograph of a fluororesin sheet (polytetrafluoroethylene film) produced according to Example 1, in which distilled water was dropped.
17 is a photograph of a fluororesin sheet (polytetrafluoroethylene film) produced according to Example 2, in which distilled water is dropped.
18A is a photograph showing the surface state of the fluororesin sheet (polytetrafluoroethylene film) produced according to Example 1 before ozone irradiation.
18B is a photograph showing the surface state of the fluororesin sheet (polytetrafluoroethylene film) produced according to Example 1 after irradiation with ozone.
19A is a graph showing the results of EDS (energy dispersive spectroscopy) measurement of the composition of the fluororesin sheet (polytetrafluoroethylene film) prepared according to Example 1 before ozone irradiation.
FIG. 19B is a graph showing the results of EDS (energy dispersive spectroscopy) measurement of the composition after ozone irradiation on the fluororesin sheet (polytetrafluoroethylene film) produced according to Example 1. FIG.
FIG. 20 is a graph showing the experimental conditions of ozone deterioration.
FIG. 21 is a cross-sectional view of a fluororesin sheet exposure waterproofing method according to a fourth embodiment of the present invention and a waterproof sheet applied to the construction structure.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

1 is a perspective view showing a fluororesin sheet exposure waterproofing method according to a first embodiment of the present invention and a manufacturing process of a waterproofing sheet applied to the construction structure.

Referring to Fig. 1, the first uncoiler 1 supplies a fluororesin sheet 11 previously wound up, and the second uncoiler 2 supplies a synthetic resin sheet 21 previously wound and manufactured. The fluororesin sheet 11 and the synthetic resin sheet 21 are formed into a waterproof sheet 31 via the laminating roll 3 and wound around the recoiler 4.

At this time, the pressure sensitive adhesive 5 is sprayed between the fluororesin sheet 11 and the synthetic resin sheet 21 or the adhesive agent is applied to one surface of the fluororesin sheet 11 or the synthetic resin sheet 21 facing each other, (21) can be integrally formed with a strong adhesive force.

The pressure-sensitive adhesive and the following pressure-sensitive adhesive can be replaced with an adhesive. For example, the pressure-sensitive adhesive may include a silicone pressure-sensitive adhesive or an acrylic pressure-sensitive adhesive, and among them, the silicone pressure-sensitive adhesive is more excellent in durability and adhesiveness.

For example, the fluororesin sheet 11 contains a tetrafluoroethylene group and its surface is oxidized. In the waterproof type sheet 21, the fluororesin sheet 11 may be a skived film manufactured by skiving processing.

The skiving process refers to a process in which a fluororesin powder is placed in a predetermined mold and a sintering process is performed to heat the sintered product to form a sintered body, followed by slicing the sintered body using a knife.

As described above, the fluororesin sheet 11 manufactured by the skiving process can have a knife mark on its surface, that is, it can have a surface roughness (Ra) of 0.10 mu m to 0.15 mu m. When the surface roughness Ra is within the above range, the area of the fluororesin sheet 11 in contact with the ultraviolet rays and the ozone of the external environment is reduced and the durability can be improved.

Further, the fluororesin sheet 11 may be surface-treated. Adding the surface treatment in this manner can reduce the release properties of fluorine. In particular, since the skived fluorine film exhibits a higher releasability, the releasability can be further reduced through the surface treatment.

Surface treatment methods include physical etching and chemical etching methods. The physical etching may be a surface treatment method using a plasma. Plasma etching is performed by injecting an active gas in a vacuum state to form a plasma, and applying the plasma to the surface of the fluororesin sheet 11 to modify the surface.

The vacuum state may be a vacuum degree of 10 ^-3 to 10 ^-4 Torr. The active gas may be argon, hydrogen, or oxygen, respectively, or may be a mixture thereof. When the active gas is mixed and used, the mixing ratio can be appropriately adjusted.

The chemical etching method can be carried out by immersing the fluororesin sheet 11 in an etching agent. The etchant may be iron chloride, ammonia sulfate, chromic acid, or a combination thereof. The chemical etching process may be carried out by appropriately adjusting the immersion time or the like according to the thickness and required properties of the sheet.

The weight average molecular weight of the fluororesin sheet 11 may be from 1,000 to 200. [ When the weight average molecular weight of the fluororesin sheet 11 is within the above range, the fluororesin sheet 11 is not easily worn and can have high durability against ultraviolet rays and ozone of the external environment.

For example, the fluororesin sheet 11 may be made of a thermoplastic resin such as polytetrafluoroethylene, tetrafluoroethylene-hexafluoropropylene copolymer, tetrafluoroethylene-perfluoroalkyl vinyl ether, tetrafluoroethylene-ethylene copolymer , Tetrafluoroethylene-perfluoropropyl vinyl ether copolymer, tetrafluoroethylene-perfluoromethyl vinyl ether copolymer, or a combination thereof.

That is, the fluororesin sheet 11 contains a tetrafluoroethylene group in which all the hydrogen atoms of the ethylene group are substituted with fluorine. If only a part of the hydrogen atoms of the ethylene group, for example, one, two or three, When a fluororesin containing a monofluoroethylene group, a difluoroethylene group or a trifluoroethylene group is used, the fluororesin is broken under the condition of being exposed to ozone for a long time and is eluted with water, which is not suitable.

When a fluoropolymer sheet 11 containing a tetrafluoroethylene group is formed and applied to a rooftop exposed waterproofing structure compared with a case where a fluororesin is applied to a rooftop exposed waterproofing structure (for example, spraying) , Strong durability against ultraviolet rays and ozone of the external environment.

This is because, in the method of applying the fluororesin sheet 11, the fluororesin can be uniformly positioned rather than the method of applying the fluororesin, and the fluororesin sheet 11 can be positioned at an appropriate thickness to have durability.

On the contrary, when the fluororesin is applied to the rooftop exposed waterproof structure (for example, spraying), it is difficult to uniformly position the fluororesin, and there is a possibility that a portion where the fluororesin is not located may occur. Since the thickness is formed to be relatively thinner than the sheet shape, the durability against the waterproofing method may be lowered.

The thickness of the fluororesin sheet 11 may be 0.025 mm to 0.250 mm, and may be suitably 0.050 mm to 0.200 mm. When the thickness of the fluororesin sheet 11 is thinner than 0.025 mm, wear resistance is weak and it is easily worn to reduce the service life. If it is thicker than 0.250 mm, the rigidity increases and it may be difficult to adhere to curved surfaces and orthogonal portions.

Hereinafter, examples and comparative examples of the fluororesin sheet 11 will be described. The following embodiments are only examples of the fluororesin sheet 11, and the present invention is not limited to these embodiments.

(Example 1)

A polytetrafluoroethylene powder (weight average molecular weight: 1.5 million) was placed in a mold and sintered by heating at 350 to 360 ° C to obtain a sintered body. A polytetrafluoroethylene skive film having a thickness of 0.125 mm was produced by the skiving process using this knife.

The surface roughness (Ra) of the prepared polytetrafluoroethylene skive film was 0.14 탆.

(Example 2)

A mixed gas of argon gas and hydrogen gas (6: 4 volume ratio) was injected as an active gas in a vacuum state under a vacuum of 10 ^{- 3} Torr to form a plasma, and a polytetrafluoroethylene skid The surface of the film was subjected to a surface treatment to modify it to prepare a surface-treated polytetrafluoroethylene film.

(Example 3)

The polytetrafluoroethylene skive film prepared according to Example 1 was immersed in an ammonia sulfuric acid etching agent to surface-modify the surface of the polytetrafluoroethylene skive film to obtain a surface-treated polytetrafluoroethylene film .

* Check the surface structure of fluororesin sheet (film)

Surface photographs of the polytetrafluoroethylene films produced according to Examples 1 and 2 are shown in Figs. 14 and 15, respectively. As shown in Fig. 15, the polytetrafluoroethylene film of Example 1, which had not been subjected to the surface treatment, had uniformly thinned surfaces using knives, but the polytetrafluoroethylene film of Example 2, It can be seen that the thinly cut surface becomes uneven .

* Fluorine resin sheet (film) contact angle experiment

After distilled water was dropped on the polytetrafluoroethylene film produced according to Examples 1 to 3, the photographs thereof are shown in Figs. 16 and 17, respectively. As shown in Fig. 16, in the polytetrafluoroethylene film of Example 1 in which no surface treatment was performed, water droplets in a round shape were formed on the surface, but as shown in Fig. 17, The fluoroethylene film has a wider area where water droplets adhere to the film, and the angle between the water droplet and the film is changed. That is, it can be seen that as the surface treatment is performed, the hydrophilicity is increased.

In addition, the angles of the water droplets with the polytetrafluoroethylene films of Examples 2 to 3 were measured, and surface energy values were calculated using the measured angles. The results are shown in Table 1 below.

* Fluororesin Sheet (Film) Surface tension measurement (Dyne pen)

The surface tensions of the polytetrafluoroethylene films prepared according to Examples 2 and 3 were measured by the ASTM ARD D-2578 method using a dyne pen, and the results are shown in Table 1 below.

Example 2 (plasma treatment) Example 3 (Chemical Treatment) Surface energy (mJ / m 2) 34.46 35.71 Surface tension (dyne) 44 44

As it is shown in Table 1, Example 2, and the surface energy of 3 34.46mJ / m ² and a 35.71mJ / m ^2, it can be seen a possible adhesive coating sujunim Since the surface tension is 42 dyne or more, it can be understood that when the pressure-sensitive adhesive layer is formed by coating a pressure-sensitive adhesive on the prepared polytetrafluoroethylene film, the pressure-sensitive adhesive layer exhibits excellent bonding strength.

* Fluorine resin sheet (film) ozone treatment experiment

The polytetrafluoroethylene skive film prepared according to Example 2 was irradiated with ozone (more corrosive than ultraviolet light) for 30 days, and the surfaces before and after irradiation were respectively measured. The results are shown in Fig. 18A ), And FIG. 18B (after irradiation). As shown in FIGS. 18A and 18B, when a knife mark is observed on the surface of the produced polytetrafluoroethylene skive film, the knife mark disappears when the film is irradiated with ozone. From this result, it can be seen that the polytetrafluoroethylene skive film was not broken and eluted during ozone treatment.

Further, the polytetrafluoroethylene skive film prepared in Example 2 was irradiated with 10 ppm of ozone for 30 days, and the composition thereof was measured by EDS. The results are shown in Figs. 19A (before irradiation) and 19B (after irradiation) Respectively. The results of the measurement of the content of each component are shown in Table 2 below.

element Content (% by weight) Content (atom%) Before ozone irradiation C 33.54 42.08 O 34.98 32.94 F 31.48 24.97 After ozone irradiation C 28.72 36.61 O 39.35 37.66 F 31.93 25.73

As shown in Figs. 18A and 18B and Table 2, it can be seen that the polytetrafluoroethylene film of Example 2 has almost the same element composition irrespective of ozone irradiation. Therefore, even if the polytetrafluoroethylene film of Example 2 is exposed to ozone, That is, the physical properties can be maintained.

* Fluorine resin sheet (film) mass reduction and ozone depletion experiment

The polytetrafluoroethylene film produced according to Example 2 was cut into a size of 140 mm * 60 mm, and then trimethylatedsilicone-containing silicone pressure sensitive adhesive (manufactured by Dow Corning) was applied thereto. A synthetic resin sheet (12) was laminated on the adhesive to produce a waterproof type sheet (31).

A manufactured waterproofing sheet (31) was applied to the chamber. The chamber was then filled with water and then treated with ozone. The ozone treatment conditions were such that the dissolved ozone concentration in the ozonated water was maintained at (10 1) mg / L, the temperature of the chamber was maintained at 20 ° C for 3 hours, the temperature was raised to 40 ° C for 1 hour, After 3 hours, the temperature was lowered to 20 ° C over 1 hour, and the total time was 8 hours.

In addition, the water level of the ozone water was set to the one-hour water level and the one-hour low water level. The cycle conditions of temperature and water level are shown in Fig. Thus, a total of 84 cycles were repeated with a cycle of 8 hours being one cycle. After the cycle was completed, the waterproof sheet 31 was removed from the chamber and washed with distilled water to obtain a film after ozone treatment.

The mass of the polytetrafluoroethylene film produced according to Example 1 was measured up to the third decimal place and the ozone treated film washed with distilled water was rolled in a 0 ° C chamber for 24 hours or longer to remove all of water, The sample was stored for 30 minutes under the condition (20 ° C), and the mass was measured up to the third decimal place.

From the measured values, the mass reduction amount was calculated using the following formula 1, and 0.3 g / m 2 was obtained as a result.

[Formula 1]

(G / m ² ) = [Film weight before ozone treatment (g) - Film weight after ozone treatment (g)] / Film area (m ² )

The appearance of the film after ozone treatment was free from cracks, rust generation and dropout at the joints.

The bonding performance test and permeability test were also measured. In the bonding performance test, two sheets of ozone-treated films were prepared, and the two prepared sheets were attached so as to overlap each other in the longitudinal direction by 40 mu m. Then, the sheets were pulled until they were broken at a rate of 100 mm / min using a tensile tester, , And the bonding strength was measured in the same manner using the film before ozone treatment and then the% of the bonding strength of the film after ozone treatment with respect to the bonding strength of the film before ozone treatment was calculated. As a result, it was found that 95%, which is more than 90% required in the ozone treatment field, was obtained and thus it can be used effectively in the ozone treatment field.

The permeability test method was a method in which a polytetrafluoroethylene film prepared in accordance with Example 1 was adhered to a cement mortar plate using a pressure sensitive adhesive to prepare a specimen. The specimen was put in water, and the pressure was 0.1 N / mm ² for 3 hours After removing the sample, the specimen was wiped off and cut in half, and the degree of water penetration into the cement mortar plate under the film was determined. As a result, the results were not obtained at a water pressure of 0.1 N / mm ² .

Waterproofing sheet method comprising ethylene film from this experiment, as the polytetrafluoroethylene produced according to an exemplary embodiment has no cracks, joints rust and eliminated from the ozone treatment vessel, the mass reduction is 10g / m ² or less, 0.1N / mm ² water pressure, and satisfies the ozone performance test condition that the bonding performance is 90% or more .

Therefore, when the waterproof type sheet 31 having the fluororesin sheet 11 is applied to the roof waterproof system, the waterproof type performance of the ultraviolet ray and ozone of the external environment can be further improved.

For example, the synthetic resin sheet 21 may be made of a material selected from the group consisting of ethylene vinyl acetate (EVA), polyethylene (PE), polypropylene (PP), high density polyethylene (HDPE), ethylene propylene diene monomer (EPDM), polyvinyl chloride alcohol, TPU (thermoplastic polyurethane), or TPO (thermoplastic olefin).

Hereinafter, referring to FIG. 2 to FIG. 7, FIG. 2 illustrates a fluororesin sheet exposure waterproofing method and its construction structure according to a first embodiment of the present invention. The fluoropolymer sheet exposed waterproofing method of the first embodiment includes a first step, a second step and a third step.

2 is a cross-sectional view of a fluororesin sheet exposure waterproofing method according to a first embodiment of the present invention and a step of forming a primer layer and an adhesive layer after the surface finishing in the construction structure.

Referring to FIG. 2, the first step is to form a primer layer 52 by applying a primer to the base surface 51 composed of a concrete structure, applying an adhesive to the primer layer 52 to form an adhesive layer 53, .

FIG. 3 is a cross-sectional view of a step of applying a first sheet on the adhesive layer of FIG. 2, FIG. 4 is a sectional view of a step of forming a joint adhesive layer on the end of the first sheet of FIG. Sectional view of a step of applying a second sheet on the end of the first sheet, the joint adhesive layer and the adhesive layer.

3 to 5, the second step is to form a waterproof type sheet 31, that is, a first sheet 61, which is formed by adhering the fluororesin sheet 11 and the synthetic resin sheet 12 to the adhesive layer 53, And the second sheet (62) are overlapped and adhered.

Referring to FIG. 3, in the second step, the first sheet 61 is adhered to the adhesive layer 53. Referring to FIG. 4, in the second step, a joint adhesive layer 531 is further formed at the end of the first sheet 61 to connect to the adhesive layer 53.

5, in the second step, the end portion of the second sheet 62 is overlapped on the joint adhesive layer 531. As shown in FIG. The first and second sheets 61 and 62 are attached to the primer layer 52 by the adhesive layer 53 to realize waterproof performance.

At this time, the fluororesin sheet 11 exposed to the outside can improve the waterproofing and durability against the external environment, and the synthetic resin sheet 12 disposed inside can improve the waterproof performance of the first and second sheets 61, 62).

Since the synthetic resin sheet 12 is protected from the external environment by the fluororesin sheet 11, it can have excellent durability against waterproofing. Since the first and second sheets 61 and 62 are formed in a sheet state, handling and construction of the first and second sheets 61 and 62 are very convenient.

The ends of the first and second sheets 61 and 62 are overlapped with each other and attached to the joint adhesive layer 531. The joint adhesive layer 531 can improve the waterproofing and sealing performance at the ends of the first and second sheets 61 and 62 which are overlapped with each other.

6 is a cross-sectional view of a step of installing a fixing member in a portion where the first sheet and the second sheet overlap in Fig. Referring to FIG. 6, the second step further includes a twenty-first step.

In step 21, the end of the first sheet 61 and the second sheet 62 are fixed to the base surface 51 by using the fixing member 54. The fixing member 54 can be installed at the ends of the first and second sheets 61 and 62 via the washer 541 formed of a fluororesin sheet. The washer 541 is waterproofed by the fixing member 54 and prevents deterioration of the performance of the system.

7 is a cross-sectional view of the step of installing the closure member on the fixing member of Fig. Referring to FIG. 7, the third step is to attach the first closing member 71 using the adhesive 711 on the ends of the first sheet 61 and the second sheet 62. The first closing member 71 complements the waterproofing and sealing performance which can be attenuated at the ends of the first and second sheets 61 and 62 connected to each other.

In addition, when the fixing member 54 is used, the first closing member 71 is waterproofed in the overlapping portion of the ends of the first and second sheets 61, 62 that can be weakened by the penetration of the fixing member 54 Method and sealing performance.

The first closing member 71 used in the third step is formed by applying an adhesive to the fluororesin sheet. Therefore, the first closing member 71 can improve the durability against the external environment even around the fixing member 54 passing through the end portions and the end portions of the first and second sheets 61 and 62 which are overlapped and connected to each other.

For example, the first closing member 71 may be formed of a fluorine resin tape to improve the waterproofing method and the sealing performance around the end portions of the first and second sheets 61 and 62 and the fixing member 54 .

8 is a cross-sectional view of a fluoropolymer sheet exposed waterproofing method applied to a roof railing end and a construction structure thereof. Referring to FIG. 8, the base surface 51 may include a roof railing end 511. At this time, the fluoropolymer sheet exposure waterproofing method of one embodiment further includes a fifth step.

In the fifth step, an end primer layer 521 and an end adhesive layer 532 are further formed on the parapet end 511 and the fluororesin sheet 11 and the synthetic resin sheet 12 are adhered to the end adhesive layer 532 The third sheet 63 formed by the fixing member 54 and the third sheet 63 is fixed to the railing end portion 511 by the fixing member 54 and the second sheet 63 is fixed by using the adhesive 721 on the end portions of the fixing member 54 and the third sheet 63, The closure member 72 is attached and further connected to the end adhesive layer 532.

For example, the second closing member 72 may be formed of a fluororesin tape to improve the waterproofing method and the sealing performance around the end of the third sheet 63 and the fixing member 54. The second closing member 72 complements the waterproofing and sealing performance which can be attenuated at the ends of the railing end 511 and the third sheet 63.

9 is a cross-sectional view of a fluoropolymer sheet exposed waterproofing method applied to roof railing side walls and a construction structure thereof. Referring to FIG. 9, the base surface 51 may include a roof railing side wall 512. At this time, the fluoropolymer sheet exposure waterproofing method of one embodiment further includes a fifth step.

In the fifth step, a receiving groove 513 is formed in the parapet side wall 512, a receiving primer layer 522 and a receiving adhesive layer 533 are formed in the receiving groove 513, The fourth sheet 64 formed by adhering the fluororesin sheet and the synthetic resin sheet is fixed to the receiving groove 513 by the fixing member 54 and the adhesive agent is fixed on the end of the fixing member 54 and the fourth sheet 64, The third closing member 73 is attached to the receiving adhesive layer 533 by using the second sealing member 731.

The receiving groove 513, the receiving primer layer 522 and the receiving adhesive layer 533 are arranged at the ends of the fourth sheet 64 in the waterproofing and sealing process when the fourth sheet 64 is applied to the side wall 512 Thereby improving performance.

For example, the third closing member 73 may be formed of fluororesin tape to improve the waterproofing and the method sealing performance around the end of the fourth sheet 64 and the fixing member 54. The third closing member 73 complements the waterproofing and sealing performance that can be attenuated at the end of the receiving groove 513 and the fourth sheet 64 of the railing side wall 512.

The fluoropolymer sheet exposed waterproofing method of FIG. 9 further includes a sixth step of filling the receiving groove 513 with the silicone caulking material 74 and finishing. The silicone caulking material 74 further improves the waterproofing and sealing performance at the remaining space of the receiving groove 513 and at the end of the fourth sheet 64 and at the end of the third closing member 73. [

10 is a cross-sectional view of a fluoropolymer sheet exposed waterproofing method and its construction applied to a portion where a floor meets a sidewall on a roof. 10, the second step is to place the first sheet 65 at the bottom 515 and the side walls 512 at a right angle intersection of the bottom 515 and the side wall 516, And the second sheet 66 is bent at the side of the bottom 515 and overlapped with the first sheet 65.

The third step uses the fixing member 54 to fix the ends of the first and second sheets 65 and 66 to the bottom 515. Although not shown, the ends of the first and second sheets may be fixed to the side wall by the fixing member.

The primer layer 52 is continuously formed on the bottom 515 and the side wall 516 intersecting at right angles and the adhesive layer 53 is formed in the primer layer 52. [ The joint adhesive layer 534 is formed on the end of the first sheet 65 by being connected to the adhesive layer 53 formed on the side wall 516.

The bent end of the second sheet 66 is bonded to the joint adhesive layer 534. The fifth closing member 75 is attached to the end of the fixing member 54, the first sheet 65 and the second sheet 66 using the adhesive 751 and is bonded to the joint adhesive layer 751 with the adhesive 751. [ Lt; / RTI >

For example, the fifth closing member 75 may be formed of fluororesin tape to improve the waterproofing method and the sealing performance around the end portions of the first and second sheets 65 and 66 and the fixing member 54 .

FIG. 11 is a cross-sectional view of a fluoropolymer sheet exposed waterproofing method and its construction applied to a floor where two sidewalls meet on the roof.

11, the second step is to place the first sheet 67 on the floor 515 at a right angle intersection of the floor 515 and the two side walls 516, 517, The second sheet 68 and the third sheet 69 are provided on the two side walls 516 and 517 and the second sheet 68 and the third sheet 69 are bent from the bottom 515 side, 1 sheet 67 by overlapping.

The third step is a step 31 of attaching a fourth closing member 76 having three surfaces corresponding to the intersecting structure of the first sheet 67, the second sheet 68 and the third sheet 69 .

The first sheet 67 is installed on the bottom 515 and the second sheet 68 is installed on the side wall 516 and the second sheet 68 is bent on the side of the bottom 515 to form the first sheet 67) by overlapping. The first and second sheets 67 and 68 are overlapped with each other, and a description thereof will be omitted.

A third sheet 69 is provided on the other side wall 517 and a third sheet 69 is bent on the side of the bottom 515 to form a first sheet 67) by overlapping. The first and second sheets 67 and 69 are overlapped with each other at the end of the third sheet 69 and a description thereof will be omitted.

A third sheet 69 is provided on the other side wall 517 and a third sheet 69 is bent on the side of the one side wall 516 to form a second sheet Two sheets (68) are overlapped. A closure member to be applied to the end portions of the overlapped second sheet 68 and the third sheet 69 and a description thereof will be omitted and the description thereof is omitted.

The fourth finishing member may include a finishing member to be installed at an end portion of the first sheet and the second sheet overlapped with each other, a finishing member to be installed at the end portion of the first sheet and the third sheet overlapping each other, (Not shown).

The fourth closing member 76 is disposed between the overlapped first sheet 67 and the end of the second sheet 68, the first sheet 67 and the third sheet 69 overlapping each other, and the overlapped second sheet 68, And the third sheet (69).

In this case, the fourth closing member 76 is provided at the end of the overlapping first sheet 67 and the overlapping first sheet 67 and the third sheet 69, which are applied to the ends of the second sheet 68, The second sheet (68), and the third sheet (69).

The fourth closing member 76 is attached to the end portions of the first, second, and third sheets 67, 68, 69 via the adhesive 761. The fourth closing member 76 is formed of a fluororesin tape so that the waterproofing method and the sealing performance can be improved at the ends and the periphery of the first, second, and third sheets 67, 68, and 69.

In the first embodiment, the primer layer and the adhesive layer are formed on the base surface and the sheet is attached to the front surface, so that an air vent can be installed to discharge the air formed between the base surface and the waterproof sheet. The air vents can be installed in multiple units according to the set area according to the wetness condition of the substrate.

Hereinafter, various embodiments of the present invention will be described. The same configuration as that of the first embodiment will be omitted and different configurations will be described.

12 is a cross-sectional view of a fluororesin sheet exposure waterproofing method and its construction according to a second embodiment of the present invention. Referring to FIG. 12, the fluororesin sheet exposure waterproofing method according to the second embodiment includes steps 10, 20, 30, and 40.

In a tenth step, the base surface 51 made of a concrete structure is assembled. In operation 20, a first sheet 91 and a second sheet 92 formed by adhering the fluororesin sheet 11 and the synthetic resin sheet 12 to the substrate surface 51 are overlapped. In the step 30, the end portions of the first sheet 91 and the second sheet 92 are fixed to the base surface 51 by using the fixing member 54.

Step 40 attaches the first closing member 93 using the adhesive 931 on the ends of the first and second sheets 91 and 92 and on the fixing member 54.

Although not shown, in step 20, a first sheet may be applied, and a joint adhesive (see 531 in FIG. 5) may be applied to an end portion overlapping the second sheet so that the ends of the first and second sheets may be attached to each other.

The first closing member 93 may be a fluororesin tape formed by applying an adhesive to a fluororesin sheet. The first closing member 93 can improve the waterproofing and sealing performance around the end portions of the first and second troughs 91 and 92 and the fixing member 54. [

Step 30 can be performed in the same manner as steps 2 and 21 of the first embodiment, and a description thereof will be omitted.

13 is a cross-sectional view of a fluororesin sheet exposure waterproofing method and its construction structure according to a third embodiment of the present invention.

13 and 13, the first sheet 611 and the second sheet 621 are arranged on the opposite side of the fluororesin sheet 11 from the heat insulating layer (not shown) attached to the synthetic resin sheet 12, (13).

For example, the heat insulating layer 13 may be formed of an EVA foaming material, PE and a silver foil, a urethane foaming material, a nonwoven fabric, or a PE foaming material. The heat insulating layer 13 is adhered to the adhesive layer 53, and waterproof performance and heat insulating performance can be imparted to the fluororesin sheet exposed waterproofing construction structure.

The foam structure of the heat insulating layer 13 forms an air passage between the primer layer 52 of the base surface 51 and the first and second sheets 611 and 621 and therefore the primer layer 52 And the air vent for discharging the air formed between the first and second sheets 611 and 621 is unnecessary.

FIG. 21 is a cross-sectional view of a fluororesin sheet exposure waterproofing method according to a fourth embodiment of the present invention and a waterproof sheet applied to the construction structure. Referring to FIG. 21, the waterproof sheet 81 is formed by adhering the synthetic resin sheet 822 and the fluororesin sheet 821 with an adhesive.

The fluororesin sheet 821 has a fluororesin layer 824 formed on both surfaces of the glass fiber woven fabric 823 by impregnating the fluororesin. Therefore, the fluororesin sheet 821 can have a mechanically high rigidity by the glass fiber woven fabric 823. The waterproof type sheet 81 can be formed in the same manner as the first and second sheets 61 and 62 to form a construction structure.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, And it goes without saying that the invention belongs to the scope of the invention.

1, 2: first and second uncoiler 3: laminating roll
4: Recoiler 5: Adhesive
11, 821: fluororesin sheet 13: insulating layer
21, 822: synthetic resin sheet 31, 81: waterproof sheet
51, 501, 502: base surface 52: primer layer
53: adhesive layer 54: fixing member
61, 65, 67, 91, 611: first sheet 62, 66, 68, 92, 621:
63, 69: third sheet 64: fourth sheet
71, 93: first closing member 72: second closing member
73: third closing member 74: silicon caulking material
75: fifth closing member 76: fourth closing member
511: railing end portion 512: rail side wall
513: receiving groove 515: bottom
516, 517: side wall 521: end primer layer
522: receiving primer layer 531, 534: joint adhesive layer
532: end adhesive layer 533: receiving adhesive layer
541: Washers 711, 721, 731, 751, 761, 931: Adhesive
823: Glass fiber woven fabric 824: Fluorine resin layer

Claims (29)

A first step of arranging a base surface made of a concrete structure, applying a primer to form a primer layer, and applying an adhesive to the primer layer to form an adhesive layer;
A second step of laminating a first sheet and a second sheet formed by adhering a fluororesin sheet and a synthetic resin sheet to the adhesive layer by lapping; And
A third step of attaching a first closing member using an adhesive on the ends of the first sheet and the second sheet,
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The second step
Wherein a joint adhesive layer is further formed on an end of the first sheet to connect the adhesive sheet to the adhesive layer and an end of the second sheet is overlapped on the joint adhesive layer. The method according to claim 1,
The second step
And fixing the end portions of the first sheet and the second sheet overlapped with each other using the fixing member to the base surface. delete The method according to claim 1,
In the third step,
A first finishing member formed by applying an adhesive to a fluororesin sheet is used
Fluoropolymer sheet exposed waterproofing method construction method. The method according to claim 1,
When the ground surface is the roof railing end,
An end primer layer and an end adhesive layer are formed at the parapet end,
A third sheet formed by adhering a fluororesin sheet and a synthetic resin sheet on the end adhesive layer is fixed to the parapet end with a fixing member,
A fifth step of attaching a second closure member to the end adhesive layer using an adhesive agent on the end portion of the fixing member and the third sheet,
Wherein the fluoropolymer sheet is exposed to water. The method according to claim 1,
When the ground surface is a roof railing sidewall,
Forming a receiving groove on the railing side wall, forming a receiving primer layer and a receiving adhesive layer in the receiving groove,
A fourth sheet formed by adhering a fluororesin sheet and a synthetic resin sheet on the receiving adhesive layer is fixed to the receiving groove with a fixing member,
A fifth step of attaching a third closure member to an end of the fixing member and the fourth sheet to further connect the third closure member to the receiving adhesive layer using an adhesive,
Wherein the fluoropolymer sheet is exposed to water. The method according to claim 6,
And a sixth step of filling the receiving groove with a silicone caulking material to finish the sixth step. The method according to claim 1,
The second step
A first sheet is installed on the floor at a portion where the floor and the side wall intersect at right angles, a second sheet is installed on the side wall, and the second sheet is bent at the bottom side, The fluoropolymer sheet is applied by overlapping. 9. The method of claim 8,
In the third step,
And fixing an end portion of the first sheet and the second sheet to the floor using a fixing member. The method according to claim 1,
The second step
A first sheet is installed on the floor and a second sheet and a third sheet are installed on the two sidewalls at a portion where the bottom surface and the two sidewalls intersect at right angles, 2 sheets and the third sheet are bent and overlapped on the first sheet. 11. The method of claim 10,
In the third step,
And attaching a fourth finishing member having three sides corresponding to an intersection structure of the first sheet, the second sheet and the third sheet. delete delete A primer layer formed by arranging a base surface made of a concrete structure and applying a primer;
An adhesive layer formed by applying an adhesive to the primer layer;
A first sheet and a second sheet formed by adhering a fluororesin sheet and a synthetic resin sheet to the adhesive layer and being adhered to each other at an end portion by lapping; And
A first closing member attached to the end of the first sheet and the second sheet using an adhesive,
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Further comprising a joint adhesive layer further formed at an end of the first sheet and connected to the adhesive layer,
The end of the second sheet
Wherein the fluororesin sheet overlaps on the joint adhesive layer. 15. The method of claim 14,
And a fixing member for fixing the end portions of the first sheet and the second sheet overlapping to the base surface. delete 15. The method of claim 14,
The first closing member
A fluoropolymer sheet formed by applying an adhesive to a fluororesin sheet. 15. The method of claim 14,
When the ground surface is the roof railing end,
An end primer layer formed on the parapet end portion, an end adhesive layer,
A third sheet formed by adhering the fluororesin sheet and the synthetic resin sheet on the end adhesive layer and fixed to the parapet end by a fixing member,
A second closing member attached to the end of the fixing member and the third sheet using an adhesive and further connected to the end adhesive layer,
Wherein the fluoropolymer sheet further comprises a waterproof structure. 15. The method of claim 14,
When the ground surface is a roof railing sidewall,
A receiving groove formed on the railing side wall, a receiving primer layer formed on the receiving groove, a receiving adhesive layer,
A fourth sheet formed by adhering the fluororesin sheet and the synthetic resin sheet on the receiving adhesive layer and fixed to the receiving groove by the fixing member,
A third closing member attached to the end of the fixing member and the fourth sheet using an adhesive and further connected to the receiving adhesive layer,
Wherein the fluoropolymer sheet further comprises a waterproof structure. 20. The method of claim 19,
And a silicon caulking material filled in the receiving recess to finish the fluororesin sheet. 15. The method of claim 14,
At the portion where the bottom surface and the side wall intersect at right angles,
A first sheet is applied to the floor,
A second sheet is installed on the side wall,
The second sheet
Wherein the first and second sheets are folded at the bottom side so as to be overlapped with the first sheet. 22. The method of claim 21,
And a fixing member for fixing the end of the first sheet and the second sheet to the floor. 15. The method of claim 14,
In the portion where the bottom surface intersects the bottom and two side walls at right angles,
A first sheet is applied to the floor,
A second sheet and a third sheet are respectively installed on the two side walls,
The second sheet and the third sheet
Wherein the first and second sheets are folded at the bottom side so as to be overlapped with the first sheet. 24. The method of claim 23,
Further comprising a fourth finishing member attached with three surfaces corresponding to the intersection structure of the first sheet, the second sheet and the third sheet. delete delete delete delete delete

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