JPH03132344A - Lining film, preparation thereof and execution thereof - Google Patents

Abstract

PURPOSE:To efficiently perform lining work for enhancing waterproof, corrosionproof and water-blockign effects by infiltrating a part of a vulcanized rubber sheet in the void parts of the nonwoven fabrics placed on both surfaces of the vulcanized rubber sheet and solidifying the same to form a film body. CONSTITUTION:A part of a vulcanized rubber sheet 5 is infiltrated in the void parts 4 of the nonwoven fabrics 1 composed of a glass fiber, a polyester fiber or other material placed on both front and rear surfaces of the vulcanized rubber sheet 5 and solidified to form a film body. By this constitution, the vulcanized rubber sheet 5 and the nonwoven fabrics 1 can be integrally formed by a simple process without using a plurality of adhesives such as primers. Further, the film body is pressed to and rolled on a submerged steel structure or an adherend such as a dam or a water storage tank to be capable of being bonded thereto and the water interposed between the adherend and the lining film 7 composed of the film body is entirely excluded to perfectly bond the adherend and the lining film 7 and corrosionproof or water-blocking action can be perfectly performed.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a lining film used for adherends such as oceans, rivers, and other underwater steel structures, dams, and water tanks, and a method for producing the same and a method for applying the same. .

[Prior Art] Many anticorrosion materials, lining films, and the like have been provided for preventing corrosion or water leakage of adherends such as oceans, rivers, and other underwater steel structures, dams, and water tanks.

Regarding this lining film, Japanese Patent Application Laid-Open No. 61-2169
The method shown in Publication No. 34 has been proposed, in which an adhesive is applied in the air to the other side of a waterproof sheet having an antifouling resin coating on one side, and then the surface to which the adhesive is applied is applied. in contact with the surface of an underwater steel structure or a wet surface above the water surface,
The waterproof sheet is spread over the surface of the underwater steel structure, and the sheet is attached to the surface by magnetic force.

Also, as shown in Figure 5, a non-woven fabric is adhered to a vulcanized rubber sheet with excellent corrosion resistance using an adhesive such as brimer, this non-woven fabric is impregnated with an epoxy resin, etc., and this is used as a lining film. This conventional technique first includes: - a rubber brimer 21 on a rubber sheet 20;
Further, on this rubber brimer 21, an epoxy resin brimer 22 is applied, and a nonwoven fabric 23 is pasted on this epoxy resin brimer 22.
was impregnated with epoxy resin.

[Problems to be Solved by the Invention] Since the technology described in the above-mentioned Japanese Patent Application Laid-Open No. 61-216934 is for extending a waterproof sheet onto an underwater steel structure,
Although its anti-corrosion effect appears to be increasing, waterproof sheets have a fixed shape and always try to return to their original shape even when adhered to an adherend. Since it did not conform to the shape of the adherend, it was not possible to displace water and apply pressure.

In particular, there are few flat adherends such as underwater steel structures, and there are problems with their adhesive strength.

That is, since the waterproof sheet has a thickness of around 1 mm, when adhering the sheet, it is necessary to press the sheet from the outer surface, but it is difficult to apply pressure effectively to expel water.

In addition, when a waterproof sheet is spread over a cylindrical underwater steel structure, the sheet is constantly subjected to a force that tries to return to its original flat state, making it difficult to adhere to the shape of the adherend because it does not conform to the shape of the adherend. There was a point.

Furthermore, even when it is spread on a flat surface, there is a problem in that it moves downward under its own weight.

As a means to solve these problems, a waterproof sheet contains magnetic particles and is attached to the surface of an underwater steel structure using magnetic force, but such magnetic force has a weak adsorption force, so this problem cannot be solved. There was no way to do that.

At the same time, water intervening between the adherend and the sheet cannot be completely eliminated, so in some cases, after the sheet is bonded,
There was a problem in that the adhesive surface easily peeled off due to the presence of water.

In addition, a non-woven fabric is bonded to a vulcanized rubber sheet with excellent corrosion resistance using an adhesive such as Bly, and this non-woven fabric is impregnated with an epoxy resin, etc., and this is used as a lining film. When applying non-woven fabric to
Two types of brimers: one for rubber and one for epoxy resin.
Not only is the process complicated, but also the application process is time-consuming and uneconomical, since different types of brimer have to be applied.

Therefore, the rubber sheet and nonwoven fabric can be applied in a simple process without using adhesives such as multiple brimers, and can be applied by pressing and spreading pressure onto the adherend such as underwater steel structures. It can be attached and bonded, eliminating any water intervening between the adherend and the lining film such as non-woven fabric, completely adhering the adherend and the lining film such as non-woven fabric, and providing anti-corrosion and water-blocking effects. There has been a strong desire to develop a lining film for use on adherends such as underwater steel structures, a method for manufacturing the same, and a method for applying the same, which can completely perform the following.

[Summary of the invention] The present invention has been made to solve the above problems, and consists of integrally forming a nonwoven fabric and a vulcanized rubber sheet, and uniformly applying an adhesive such as epoxy resin to the nonwoven fabric to impregnate it. The object of the present invention is to provide a lining film which is used as a lining film for adherends such as underwater steel structures, dams, water tanks, etc., a method for producing the same, and a method for constructing the same.

[Means for Solving the Problems] In order to solve the above problems, the present invention employs the means described below.

First, the present invention allows a part of the vulcanized rubber sheet 5 to penetrate into the void 4 of the nonwoven fabric 1 made of glass fiber, polyester fiber, or other material, which is placed on both the front and back surfaces of the vulcanized rubber sheet 5. It is characterized in that it is solidified to form a coating body 6.

The present invention is also characterized in that the lining film 7 is formed by uniformly applying and impregnating the adhesive 9 such as epoxy resin, urethane resin, or acrylic resin onto the nonwoven fabric 1 on the front or back surface of the film body 6.

Furthermore, in the present invention, a nonwoven fabric 1 made of glass fiber, polyester fiber, or other material is placed on both the front and back sides of an unvulcanized rubber sheet 2, and the unvulcanized rubber sheet 2 on which this nonwoven fabric 1 is placed is vulcanized. The vulcanization device 3 performs a vulcanization reaction at a predetermined pressure and temperature, and at the same time, a portion of the rubber enters the void 4 on the surface of the nonwoven fabric 1 that is in contact with the unvulcanized rubber sheet 2 and solidifies. The lining film 7 is formed by applying an adhesive 9 such as epoxy resin, urethane resin, or acrylic resin to the nonwoven fabric 1 on the front or back surface of the film 6 to impregnate it. shall be.

Furthermore, in the present invention, a non-woven fabric 1 made of glass fiber, polyester fiber, or other material is placed on both the front and back sides of an unvulcanized rubber sheet 2, and an unvulcanized rubber sheet 2 on which this non-woven fabric 1 is placed is prepared. A vulcanization device 3 performs a vulcanization reaction at a predetermined pressure and temperature, and at the same time unvulcanized rubber sheet 2 of nonwoven fabric 1.
A part of the rubber enters the cavity 4 on the surface that is in contact with the rubber and solidifies to form a coating 6, and the nonwoven fabric 1 on the front or back side of the coating 6 is coated with epoxy resin, urethane resin, acrylic, etc. The adhesive 9 such as resin is uniformly applied and impregnated to form a lining film 7, and the surface of the adherend 8 is lined with this lining film 7.

[Function] By having the above-described structure, the present invention allows a vulcanized rubber sheet and a nonwoven fabric to be integrally formed in a simple process without using multiple adhesives such as primers, Moreover, it can be applied to adherends such as underwater steel structures, dams, and water storage tanks by pressing and spreading pressure, and can be adhered by eliminating any water intervening between the adherend and the lining film. It is capable of completely adhering the wearer and the lining film to provide complete anti-corrosion and water-blocking effects.

[Example] Hereinafter, one example of the lining film used for adherends such as underwater steel structures, dams, water tanks, etc., the manufacturing method thereof, and the construction method of the present invention will be described in detail based on the drawings.

As shown in FIG. 1, the present invention is a non-vulcanized rubber sheet made by placing a non-woven fabric 1 made of glass fiber, polyester fiber or other material on both the front and back surfaces of an unvulcanized rubber sheet 2, and placing this non-woven fabric 1 on an unvulcanized rubber sheet 2. The rubber sheet 2 is introduced into a vulcanizing device 3 consisting of a heated roller, a heated press, etc., and is pressurized and heated at a predetermined pressure and temperature to perform a vulcanization reaction.

The predetermined pressure and temperature in this step mean that the vulcanization reaction for forming an unvulcanized rubber sheet into a vulcanized rubber sheet is carried out, and at the same time, the void on the surface of the nonwoven fabric 1 that is in contact with the unvulcanized rubber sheet 2 is applied. It is necessary to infiltrate a part of the rubber into the partition 4 and solidify it to form the coating 6. For example, the heating temperature is preferably about 130 to 210°C.

That is, CR, NR, etc. can be vulcanized as low as 130'C, while polyester fibers can be vulcanized at a temperature of about 22°C.
This is because the temperature is around 0°C. In addition, when using glass fiber, the upper limit temperature may be further increased.

In addition, in pressurization, the vulcanization reaction is promoted, and the nonwoven fabric 1
A part of the rubber enters the cavity 4 and hardens to form a coating 6.
0.5 to 100 kg is desirable.

During this pressurization and heating, a portion of the rubber enters into the spaces 4 of the numerous piles of the fibers constituting the nonwoven fabric 1, and the piles and the vulcanized rubber sheet 5 are integrally fused. By solidifying, the nonwoven fabric 1 and the vulcanized rubber sheet 5 are strongly formed integrally.

The vulcanized rubber sheet 5 formed by integrally fixing the nonwoven fabric 1 to both its front and back surfaces is formed as a coating 6.

Nonwoven fabric 1 integrally fixed to both the front and back surfaces of this coating 6
The lining film 7 is obtained by uniformly applying and impregnating an adhesive 9 such as an underwater curable epoxy resin, urethane resin, or acrylic resin on the front or back surface of the lining film 7 .

This lining film 7 consists of a vulcanized rubber sheet 5 and a film body 6 made of a nonwoven fabric 1 integrally fixed to both the front and back surfaces of the vulcanized rubber sheet 5; It is formed by uniformly applying and impregnating an adhesive 9 such as resin or acrylic resin.

Further, by applying a large amount of adhesive 9 to only one side of the coating 6 of the present invention and rolling it into a roll with the side coated with adhesive 9 inside, the adhesive can be applied to one non-coated side. Since it is applied automatically, the application work is simplified.

Furthermore, since the surface to be adhered of the lining film 7 of the present invention is composed of the nonwoven fabric 1, the surface to be adhered is flexible, and when the base of the adherend 8 is relatively good, the base of the adherend 8 can be Painting can be omitted.

Furthermore, conventionally, each adherend 8 has been given a desired color, and when anti-corrosion lining is applied to this, a lining film that matches the color of the adherend 8 has been desired, but the rubber sheet surface However, in the present invention, applying various colors to the nonwoven fabric 1 forming the surface layer of the lining film 7 is expensive. It is easy to use and can provide anti-corrosion or water-shielding lining in a desired color.

The lining construction procedure for this lining film 7 is as follows:
First, the surface of the adherend 8 such as an underwater steel structure, dam, water tank, etc. is treated.

This surface treatment work uses surface treatment equipment such as sandblasting and sanding to finish the work to, for example, SIS standard Sa2. If necessary, corrosion holes, cracks, etc. will be repaired using prescribed means in accordance with standard repair standards.

Next, the lining film 7 is treated on land.

First, the lining film 7 is processed by cutting it into a desired area according to the shape of the adherend 8 such as an underwater steel structure at the construction site where the film body 6 is to be constructed.

For example, 0 cut into 300mm x 300mm,
A coating body 6 having a thickness of around 5 mm is spread on a sheet with good mold releasability or a plate-like body such as a glass plate or an acrylic plate, and
An adhesive 9 such as an underwater curable epoxy resin, urethane resin, or acrylic resin is uniformly applied to both surfaces of the coating 6 to be impregnated.

The amount of adhesive 9 applied is usually 1,200 to 1,500 g/
% is sufficient, but if necessary, 2.000 to 3,000
It can also be set to 0 g/m, and in such a case, the uneven surface of the adherend 8 can be sufficiently coped with.

The feature of the present invention is that the adhesive 9 is uniformly applied and impregnated on both sides of the coating 6 to form a cloth of the adhesive 9, and the lining coating 7 made of the cloth of the adhesive 9 can be used to construct underwater steel structures. The purpose is to achieve waterproof, anticorrosion, and water-blocking effects by making the adherend 8 in the same state as when it is coated with a conventional adhesive.In order to more effectively achieve these purposes, the coating 6 When a low clay type adhesive 9 is used as the adhesive 9 to be applied first, the coating body 6 can be sufficiently impregnated with the adhesive 9 more quickly and effectively.

Then, when the impregnation action is completed, a clay-type adhesive 9 is further applied thereon, thereby allowing a desired amount of the adhesive 9 to be recoated.

Of course, even if a clay-type adhesive 9 is applied from the beginning, the adhesive 9 can be effectively impregnated into the coating 6, and even if a low-clay type adhesive 9 is applied, the desired amount can be applied. Repainting is possible.

The lining film 7 formed by coating and impregnating the coating body 6 with an adhesive 9 is carried into water within 30 minutes of application and is attached to an adherend 8 such as an underwater steel structure, and is bonded by spreading pressure. .

Since the adhesive force of the adhesive 9 decreases as time passes after application, it is necessary to proceed to the bonding work immediately.

In the underwater bonding work, first, the lining film 7 impregnated and applied with adhesive 9 is pasted on the desired location of the adherend 8 such as an underwater steel structure that has been prepared in advance, and then released from the mold using a rubber spatula or the like. Using a good leveling tool, press outward from the center of the lining film 7 to bond by spreading pressure.

That is, the lining film 7 is pressed against the adherend 8 and further expanded to eliminate any presence of water. If water is present during this pressure bonding, not only will the adhesive force be weakened, but also the anti-corrosion and water-shielding effects will be reduced.

In this pasting process, the adhesive 9 is also applied to the outer surface of the lining film 7, but since water is always present on the outer surface and it is partially touched and held by fingers, etc., etc., there is little possibility that problems will occur when adhering to the outer surface part.

Moreover, since the pressing operation is performed using a leveling tool with good mold release properties, such as a rubber spatula, it can be performed efficiently and quickly.

The plurality of lining films 7 are jointed together, and the gaps that occur at each joint are filled by smoothing the adhesive 9 applied to the outer surface of the lining film 7. 7 has a smooth finish as if it were lined with a single film.

This lining film 7 is applied to an adherend 8 as shown in FIG.
A desired number of layers can be laminated depending on the situation, and by doing so, the anti-corrosion and water-blocking effects of the layer can be exhibited.

By lining the adherend 8 such as an underwater steel structure with the lining film 7 in this manner, anti-corrosion and water-shielding effects can be obtained.

Depending on the environment of the adherend 8 such as an underwater steel structure, advanced functions such as abrasion resistance and impact resistance may be required. Since it is composed of the sheet 5, it can easily exhibit advanced functions such as abrasion resistance and impact resistance.

The lining coating 7 of the present invention may also be a separate lining coating 7.
Alternatively, an anticorrosion coating made of a vulcanized rubber sheet, a vinyl chloride sheet, a stainless steel foil, or the like can be applied onto the lining coating 7 and bonded by rolling pressure, thereby providing even stronger anticorrosion and water-shielding effects.

First, a lining film 7 is applied to an adherend 8 such as an underwater steel structure.
Immediately after lining, an anti-corrosive coating such as a vulcanized rubber sheet cut into a desired area or another lining coating 7 is pasted onto the surface of the lining coating 7 and pressed to bond by spreading pressure.

The bonding process is performed by pressing outward from the center using a leveling tool such as a roller to eliminate any intervening water.

The plurality of lining films 7 or anticorrosive films are each formed into a lap joint, and the minimum value of the lap distance is approximately as follows, but it is optimal.

Sheet thickness Minimum value of lap allowance 1.0 mm 30 mm 1.2 mm 40 mm 1.5 mm 50 mm 2.0 mm 80 mm As for the treatment of the lap allowance, the surface of the lower lining film 7 is coated with water-curable epoxy resin, etc. For example, glue
Apply the upper lining film 7 to a thickness of approximately 0.5 mm.
Alternatively, the anticorrosion coating is pressed and adhered, and the end is coated with the same type of adhesive.

The anticorrosive coating such as the lining coating 7 or a vulcanized rubber sheet has a fixed shape and tends to return to its original shape, so it is temporarily fixed.

As a means of temporary fixing, a magnet is used to fix the lining coating 7 or the anticorrosive coating until the adhesive hardens, or if a magnet cannot be used, a fastener such as a stud bolt is attached to the base to fix it.

When a water-curable epoxy resin is used as an adhesive, curing is completed in about 24 hours when the water temperature is 10°C or higher, and about 48 hours when the water temperature is 5°C to 10°C. As a guide, remove the temporary fixing.

A predetermined amount of adhesive, for example, 20
It may be applied at a weight of 0 to 250 g/uniform and adhered to the lower lining coating 7 within about 30 minutes of application, in which case a stronger adhesion can be achieved.

When a vulcanized rubber sheet is used as the anti-corrosion coating, the adhesive strength between the rubber sheet and an adhesive such as epoxy resin is weak, so it is necessary to apply a rubber brimer to the adhesive-coated surface of the rubber sheet in advance and let it dry. After that, if an adhesive is applied, the adhesion between the two will be good.

Example (1) The underwater lining construction method of the present invention and the lining film 7 used therein were tested for adhesion to steel materials, and the following results were obtained.

(1) Preparation of the surface of an iron plate as a test piece A sandblasting machine was used to prepare the surface to an SIs standard Sa of about 2.5, but since it had been left for -day, the Sa was about 2 at the time of the test.

The anchor pattern was measured by a roughness tester and was 8MIL.
It became a degree. Incidentally, in actual construction, it is usually about 2MIL.

(2) Treatment of nonwoven fabric A coating body 6 integrally formed with a nonwoven fabric 1 made of glass fiber and having a thickness of 0.5 mm is 300 mm x 300 m
m, spread it on an acrylic plate with good mold releasability, add specified amounts of Aquabond (epoxy resin) paste A and B, stir well to mix thoroughly, and coat both the front and back of the coated body 6. A lining film 7 was formed by uniformly coating both surfaces of the nonwoven fabric 1 to be formed. The amount of paste applied is 1,200g/
rr? Met.

(3) Attach the lining film 7 coated with Aquabond paste to the iron plate, which is the adherend 8, which has been subjected to underwater adhesive base treatment, before 10 minutes have passed after application, and press it sequentially from the center outward with a rubber spatula. , pressure-adhesive.

In this spread-pressure bonding, in order to completely eliminate the water interposed between the adherend 8 and the lining film 7, the center of the lining film 7 is first strongly pressed and bonded, and then the center of the lining film 7 is bonded in order. I glued it under pressure to push out water.

The lining films 7 are made into joints where they butt each other, and the gaps that occur at the butting parts are filled by smoothing the aquabond paste applied to the surface of the lining film 7, smoothing the entire lining film into one layer. Finished.

(4) A test piece made by adhering the curing lining film 7 underwater is placed in water for 3
I cured it for a month. The water temperature during construction and curing period is 25~
The temperature was 25.5°C.

(5) Results of tensile test (Kenken type tensile test, hydraulic adhesive force test, attachment shape φ45) 20 kg on the test piece
When a tensile force of /cnf was applied, the adhesive layer and the iron plate separated. It is considered that the adhesion force is sufficient since the normal standard requires an adhesion force of about 10 kg/cnt.

Next, under the same conditions as in Test Example (1), two sheets of lining film 7 were pasted on the test piece and an adhesion test was conducted when they were spread and bonded. The adhesive layer and the steel plate peeled off at the stage of addition. From this result, it is understood that the adhesion force is stronger when two lining films 7 are adhered than when one is adhered.

Example (2) Next, a lining film 7 was further applied to the surface of the lining film 7, and the results were as follows.

(1) The lined test specimen prepared in Example (1) was left in water for three months to completely harden. After rubbing the surface of the lined test piece with a wire brush to remove algae and microorganisms generated on the surface, an underwater curable epoxy resin was uniformly applied to the lining film 7, and the epoxy resin was applied before 10 minutes had elapsed.

(2) Surface treatment of the underwater adhesion test piece, treatment of the lining film 7, and underwater adhesion of the lining film 7 were performed under the same conditions as in Example (1).

The surface of the lining film 7 coated with the Aquabond paste was pasted on the surface of the lining film 7, and was pressed outward from the center with a roller to push out any intervening water to form an adhesive bond.

To process the wrap section, apply Aquabond paste to a thickness of approximately 0.5 mm on the surface of the lower sheet with a wrap margin of 30 mm.
mm was applied, the upper sheet was pressed, and the ends were caulked.

The sheet was held in place using a magnet as a temporary fix until the Aquabond paste hardened. The temporary fixing was removed 24 hours after fixing.

(3) Curing The test pieces were cured in water for 3 months.

The water temperature during construction and during the curing period was 25 to 25.5°C.

(4) Results of tensile test When the same tensile test as in test example (1) was conducted, the adhesive layer and the steel plate separated when a tensile force of 20 kg/crrr was applied to the test piece, and the lining film 7 and the lining film separated. No peeling was observed between 7.

From this result, it is understood that the adhesive force of the lining film 7 applied on the lining film 7 is strong. This shows that even if the lining film 7 were to be damaged by external force, it would be extremely easy to repair it.

[Effects of the Invention] The present invention applies an adhesive to the nonwoven fabric forming both the front and back surfaces of the coating body, sufficiently impregnates the nonwoven fabric with the adhesive, forms the adhesive into a tangible form, and forms the adhesive into a tangible form. Adhesive is applied as a lining film to the adherend and bonded by rolling pressure.It not only strengthens the adhesive force but also has high waterproofing, anti-corrosion, and water-blocking effects, and allows for efficient lining work. It is something. In particular, lining work underwater can be accomplished much more easily and efficiently than in the past.

First, since the nonwoven fabric forming the surface layer of the lining film in the present invention is fabric, it is easily impregnated with an adhesive and is a durable material, making it ideal as the surface layer of the lining film.

In addition, since non-woven fabric is a fabric, it has a fixed shape like a rubber sheet, so it does not try to return to its original shape at all, and is suitable for use in underwater steel structures, dams, water tanks, etc. It adapts well to any shape, and as a result, strong adhesive strength can be easily obtained, and it can exhibit high anti-corrosion and water-shielding effects.

In other words, in the past, when applying an adhesive or adhering a corrosion-resistant sheet, it was not possible to effectively push out and eliminate water interposed between the adhesive and the adherend; The cause is thought to be that the pressure between the anti-corrosion sheet and the anti-corrosion sheet could not be properly applied.

However, in the present invention, since the adhesive itself is formed as a tangible substance and can be pressed uniformly over the entire surface, this spreading pressure work can be carried out sequentially from the center of the nonwoven fabric outward. As this spreading pressure progresses, any water present between the adhesive and the adherend is pushed away and reliably removed, allowing the coating to be applied without any water intervening on the adhesive surface. It has strong adhesion and high waterproof and anti-corrosion effects.

Furthermore, since adhesives made of resin are of the underwater curing type, they have high adhesive strength, but when cured, they have low elongation and low elasticity, making them susceptible to cracking and the like.

However, in the case of the present invention, there is a nonwoven fabric forming the surface layer of the lining film, so it is flexible,
Cracks are less likely to occur in the adhesive.

Furthermore, since the lining film of the present invention, which has the nonwoven fabric as its surface layer, has adhesive applied not only to the inner adhesive surface but also to its outer surface, its waterproof, anticorrosion, and water-shielding effects are even more effective. Furthermore, a desired number of other lining films can be easily laminated on top of the lining film, and more effective anti-corrosion and water-blocking effects can be achieved.

Furthermore, in the present invention, since the adhesive is applied on land, there is no adhesive scattering in the water unlike in the past, making it economical, and since there is less work to be done underwater, the work can be done faster. It is something.

Furthermore, since the present invention includes an anticorrosive coating made of a vulcanized rubber sheet, it can be applied satisfactorily even in environments where wear resistance and impact resistance are required.

Furthermore, the present invention is not limited to underwater linings;
Lining in air can be carried out efficiently and effectively without any problems.

[Brief explanation of the drawing]

Figure 1 is an explanatory diagram showing the manufacturing process of the lining film of the present invention, Figure 2 is a partially cutaway enlarged cross-sectional view of the lining film of the present invention, and Figures 3 and 4 are adhesives of the lining film of the present invention to an adherend. FIG. 5 is an enlarged partially cutaway sectional view of a conventional nonwoven fabric bonded to an anticorrosive coating. 1--...--Nonwoven fabric 2--Unvulcanized rubber sheet 3--Vulcanizing device 4--Vacancy 5--Vulcanization Sulfur rubber sheet roller --- Coating body 7 --- Lining coating 8 --- One adherend 9 --- One Adhesive

Claims (1)

[Claims] 1. Vulcanized rubber is placed in the cavity (4) of a nonwoven fabric (1) made of glass fiber, polyester fiber, or other material, which is placed on both the front and back surfaces of a vulcanized rubber sheet (5). A lining film characterized in that a part of the sheet (5) is penetrated and solidified to form a film body (6). 2. Adhesive (9) such as epoxy resin, urethane resin, acrylic resin, etc.
2. The lining film (7) according to claim 1, wherein the lining film (7) is formed by uniformly applying and impregnating the lining film (7). 3. An unvulcanized rubber sheet made by placing a nonwoven fabric (1) made of glass fiber, polyester fiber, or other material on both the front and back sides of an unvulcanized rubber sheet (2), and placing this nonwoven fabric (1) on both sides. (2) is subjected to a vulcanization reaction using a vulcanization device (3) at a predetermined pressure and temperature, and at the same time, the voids (4) on the surface of the nonwoven fabric (1) in contact with the unvulcanized rubber sheet (2) are ) and solidify it to form a coating (6),
Adhesive (9) such as epoxy resin, urethane resin, acrylic resin, etc.
) is uniformly applied and impregnated to form the lining film (7). 4. An unvulcanized rubber sheet made by placing a nonwoven fabric (1) made of glass fiber, polyester fiber, or other material on both the front and back sides of an unvulcanized rubber sheet (2), and placing the nonwoven fabric (1) thereon. (2) is subjected to a vulcanization reaction using a vulcanization device (3) at a predetermined pressure and temperature, and at the same time, the voids (4) on the surface of the nonwoven fabric (1) in contact with the unvulcanized rubber sheet (2) are ) and solidify it to form a coating (6),
An adhesive such as epoxy resin, urethane resin, acrylic resin, etc. (9
) is uniformly applied and impregnated to form a lining film (7), and the surface of an adherend (8) is lined with this lining film (7).