JP2001131413A - Rubber composition for preventing attachment of marine organism and process for preventing attachment of marine organism using this - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rubber composition for preventing the fouling by marine organisms which surely prevents the fouling by marine organisms of marine constructions and ships, requires no operation for the removal of marine organisms nor their disposal after removal and allows no pollution of the sea caused by toxic ions nor environmental destruction. SOLUTION: A rubber composition for preventing the attachment of marine organisms contains a mixture of from 30 to 100 pts.wt. silicone rubber with <=70 pts.wt. polymer having a chain-form main chain, a lubricant which prevents the attachment of marine organisms such as a fatty acid, a paraffin oil, a fluorine oil, a silicone oil, etc., and/or a surface modifier such as a polyethylene wax, a massive clay, a tetrafluoroethylene powder, a silicone powder, a ceramic powder, a silane coupling agent, etc. Here, the water contact angle after vulcanization or curing is >100 deg., and the peel force is <30 g/cm.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rubber composition for preventing marine organisms from adhering to sea, and a method for preventing adhesion of marine organisms using the same. More specifically, the present invention relates to a marine organism adhesion-preventing rubber composition which does not pollute the ocean, has no risk of destruction of the environment, and can reliably prevent the attachment of marine organisms, and a method of preventing marine organism adhesion using the same. is there.

[0002]

2. Description of the Related Art Quays, piers, seawalls, intakes of power plants, props for cultured seaweed nets, buoys, fenders, transportation hoses, etc. (in the present specification, the above are collectively referred to as marine structures), Marine organisms such as barnacles, mussels, and seaweeds adhere to parts of ships that are immersed in seawater. In particular, it adheres in large quantities at times and places where the water temperature is high. If marine organisms adhere to marine structures or ships, they will impair their function and aesthetics, and must be removed. However, the adhesive force is so strong that it is difficult to remove, and even if it is removed, it is difficult to dispose of it.

In order to prevent marine organisms from adhering to marine structures and ships, a low surface tension polymer having a general composition, such as rubber or plastic, is adhered to the surface in the form of a sheet. A method or a method of applying a coating material or the like to which a cuprous oxide, an organotin compound, or another compound that separates toxic ions is added to the surface is known.

[0004]

However, the above-mentioned conventional method has the following problems. That is, a method of attaching a low surface tension polymer having a general composition to a sheet in a sheet form and sticking it to the surface has an effect of preventing adhesion in the ocean where marine organisms are relatively inhabited. In the ocean, it often adhered.

A method of applying a paint or the like to which a compound that separates toxic ions has been added to the surface is to kill marine organisms attached to a marine structure or the like or a ship by the toxic ions separated from the paint, thereby preventing the adhesion. However, at the same time, the toxic ions may contaminate the ocean and destroy the environment.

The present invention solves the above-mentioned problems, and can reliably prevent marine organisms from adhering to marine structures and ships.
This eliminates the need for work to remove marine organisms and disposal after removal, and furthermore, does not pollute the ocean with toxic ions and has no danger of damaging the environment. It is an object of the present invention to provide a method for preventing the use of marine organisms.

[0007]

Means of the present invention taken to achieve the above object are as follows. In the first invention, silicone rubber or a mixture of silicone rubber and a polymer having a chain-like main chain, a lubricant and / or a surface modifier capable of preventing marine organisms from adhering, It is a marine organism adhesion prevention rubber composition characterized by including the following.

In the second invention, the silicone rubber 3
A mixture of 0 to 100 parts by weight and 70 parts by weight or less of a polymer having a main chain, and a lubricant and / or a surface modifier capable of preventing marine organisms from adhering. It is a rubber composition for preventing marine organism adhesion.

In a third aspect of the present invention, the lubricant is one or more selected from fatty acids, paraffin oil, fluorine oil and silicone oil.
A marine organism adhesion preventing rubber composition according to the first or second invention.

[0010] In the fourth aspect, the surface modifier is at least one selected from polyethylene wax, bulk clay, ethylene tetrafluoride powder, silicone powder, ceramic powder, and silane coupling agent. A marine organism adhesion preventing rubber composition according to the first or second invention, characterized in that:

In the fifth aspect, the contact angle with water after vulcanization or curing exceeds 100 ° and the peeling force is 30%.
A marine organism adhesion preventing rubber composition according to the first, second, third or fourth invention, wherein the rubber composition is less than g / cm.

According to a sixth aspect of the present invention, there is provided a step of forming the marine organism adhesion-preventing rubber composition according to the first, second, third, fourth or fifth aspect into a sheet, wherein the sheet is a marine structure or Attaching to a ship.

[0013] In the seventh invention, the sheet to be attached to a marine structure or a ship is a sheet to which marine organisms are unlikely to adhere, a sheet to which the marine organisms are unlikely to adhere, and a marine structure or ship. A method for preventing adhesion of marine organisms according to the sixth invention, wherein a sheet having good adhesiveness is overlapped to form a multilayer.

According to an eighth aspect of the present invention, there is provided a step of using the marine organism adhesion preventing rubber composition according to the first, second, third, fourth or fifth aspect as a solution, Forming a coating film on a ship.

As the marine organism adhesion preventing rubber composition, it is possible to use only silicone rubber or a mixture of silicone rubber and a polymer having a main chain.
As the silicone rubber, the degree of polymerization is 5,000 to 10,000.
Is mainly used, and has water repellency due to participation of a siloxane portion constituting a main chain. On the other hand, adhesion to other objects is poor.

Examples of the polymer having a main chain are natural rubber, polyisoprene rubber, styrene-butadiene copolymer rubber, acrylonitrile-butadiene copolymer rubber, polychloroprene rubber, ethylene-propylene copolymer rubber, polyethylene, polypropylene and the like. Can be mentioned. Adhesion is superior to silicone rubber. The polymer having a main chain is not limited to the above.

The polymer having a main chain is used by mixing with a silicone rubber. The mixing ratio is 70 parts by weight or less for a polymer having a main chain, and 30 to 100 parts by weight for a silicone rubber. If the amount of the polymer whose main chain is in a chain form exceeds 70 parts by weight, the water repellency and the releasability of the mixture are reduced, and marine organisms may be attached. still,
It is empirically known that if the water repellency is high, marine organisms are difficult to adhere to, and the water repellency is indicated by measuring the contact angle with water.

As the lubricant, one or a combination of two or more selected from fatty acids, paraffin oils, fluorine oils and silicone oils (the above lubricants may be used alone or in combination of two or more) The same applies to the following surface modifiers). However, it is not limited to the above. The above-mentioned lubricant has a property that it has low compatibility with silicone rubber or a mixture of silicone rubber and a polymer whose main chain is chain-like, and, over time, blooms or bleeds to increase water repellency and releasability. .

The lubricant is used in an amount of 0.5 to 100 parts by weight based on 100 parts by weight of silicone rubber or 100 parts by weight of a mixture of silicone rubber and a polymer having a main chain. When the amount of the lubricant is less than 0.5 part by weight, marine organisms are liable to adhere and become difficult to peel off, and when the amount is more than 100 parts by weight, it is added to the silicone rubber or a mixture of a polymer having a main chain and a silicone rubber. When doing so, the whole becomes sticky on the roll machine, and the lubricant cannot be added.

Examples of the surface modifier include polyethylene wax, bulk clay, ethylene tetrafluoride powder, silicone powder, ceramic powder, and a combination of two or more selected from silane coupling agents. it can. However, it is not limited to the above. The surface modifier is a powder having a particle size of 5 to 50 microns, whereby after crosslinking or curing,
Microscopic uneven surfaces are formed on the surface of the silicone rubber or a mixture of the polymer having a chain-like main chain and the silicone rubber, so that even if marine organisms come into contact, the contact area is reduced.

The surface modifier is used in an amount of 0.5 to 100 parts by weight based on 100 parts by weight of silicone rubber or 100 parts by weight of a mixture of silicone rubber and a polymer having a main chain. When the amount of the lubricant is less than 0.5 part by weight, marine organisms are liable to adhere and are difficult to peel off. When the amount exceeds 100 parts by weight, when the silicone rubber or a polymer having a main chain in the form of a chain is added to the mixture of the silicone rubber, the mixture is cut on a roll machine to be separated, and so-called,
Roll operation becomes impossible and the surface modifier cannot be added.

In order to vulcanize (crosslink) or cure a mixture of silicone rubber or a polymer having a main chain in the form of a chain and silicone rubber, crosslinking of dicumyl peroxide, di-tert-butyl peroxide, a modified amine complex or the like is performed. 0.1 to 20 parts by weight of an agent or a curing agent is added. 0.1
If the amount is less than 10 parts by weight, the mixture cannot be cross-linked or cured. If the amount exceeds 20 parts by weight, so-called over vulcanization occurs, and the tensile strength and elongation decrease, and as a result,
Cracks and cracks occur.

An uncrosslinked or uncured rubber composition obtained by adding a lubricant, a surface modifier, a crosslinking agent or a curing agent to a silicone rubber or a mixture of a polymer having a main chain and a silicone rubber is as follows: The sheet is formed into a sheet by a calender or the like, and attached to a marine structure or the like or the bottom of a ship, and vulcanized or cured. Also, dissolved in a solvent to make a paint,
Coated and vulcanized or cured. In the present specification, the term "sticking" is used as a term including the case where a liner is formed by lining (adhesion, loose lining, fusion, or the like).

When a sheet is to be attached to the bottom of a marine structure or ship, it may be used as a single layer or multiple layers.
When used in a single layer, a composition containing only silicone rubber or a composition having a high mixing ratio of silicone rubber is used.
In the above case, among silicone rubbers, silicone rubber having high water repellency and releasability, hardly adhere to marine organisms, and having good adhesion to marine structures and ships is selected and used. Is preferred.

When used in multiple layers, for example, the following is the case. That is, when used in the ocean where the marine life is very easy to attach (for example, when the temperature of the seawater is high and the tide is slow), or in addition to the above environment, the marine structure And ships are made of materials with poor adhesion.

As a specific example of the above-mentioned multi-layer, the upper layer (the layer in contact with marine organisms) is provided to increase water repellency and releasability.
Use a silicone rubber alone or a composition having a high mixing ratio of the silicone rubber to prevent marine organisms from adhering. The lower layer (layer in contact with the offshore structure or ship) is located between the upper layer and the offshore structure or ship, and has a large mixing ratio of a polymer having a main chain in order to ensure adhesion between the two. Use

(Function) The marine organism adhesion preventing rubber composition according to the present invention can prevent marine organisms from adhering to silicone rubber or a mixture of silicone rubber and a polymer having a main chain. A lubricant and / or a surface modifier. In addition to the silicone rubber itself having water repellency, the above lubricant, after vulcanization or hardening, blooms or bleeds on the surface over time, increasing the water repellency and releasability.

Also, the surface modifier forms a microscopic uneven surface on the surface, and even if marine organisms come into contact, the contact area is reduced and the releasability is increased. Accordingly, the rubber composition for preventing marine organisms from adhering hardly adheres to the marine organisms, and even if they adhere, they can immediately be peeled off and fall into the sea, substantially preventing the marine organisms from adhering. In addition, since no compound that emits toxic ions is used, there is no danger of polluting the ocean and destroying the environment. In addition, in this specification, the usage of "lubricant and / or surface modifier" is used to represent the mode of "lubricant and surface modifier" and the mode of "lubricant or surface modifier". .

According to the method for preventing the adhesion of marine organisms to a sheet made of a rubber composition for preventing the adhesion of marine organisms to a marine structure or a ship, the sheet is thicker than the coating film, so that a lubricant or a surface modifier is added. Since it has a large amount and has sufficient water repellency and releasability, it is possible to sufficiently prevent marine organisms from attaching to marine structures and ships that are immersed in the sea for a long time.

The sheet to be attached to a marine structure or a ship is a multi-layer, and a sheet to which marine organisms are unlikely to adhere is used as an upper layer (a layer in contact with a marine organism), and a lower layer (a layer in contact with a marine structure or a ship). The above-mentioned sheet using the upper layer and a sheet with good adhesiveness to marine structures and ships can be used even in the marine environment where marine organisms are very easy to adhere to. Can be reliably prevented. Further, even if the upper sheet itself has poor adhesion to the marine structure or the ship due to the lower sheet, the upper layer sheet can be securely bonded to the marine structure or the ship.

According to the method of forming a coating film on a marine structure or ship by using the marine organism adhesion preventing rubber composition according to the present invention as a solution and preventing the adhesion of marine organisms, a simple operation can be carried out in a short time. A coating film can be formed on the structure, and the cost can be reduced. And compared to sheets, etc., the coating film is thin, so the amount of lubricant and surface modifier added is small, but it exhibits water repellency and releasability for marine structures that are immersed in the sea for a short period of time. Marine organisms can be prevented from attaching. Further, even if the shape of the marine structure is complicated, a coating film having a uniform thickness can be formed by applying the solution, so that the application range is wider than when a sheet or the like is attached.

[0032]

Example 1 A masticated product was prepared by masticating with a roll machine at the following five ratios. Silicone rubber (manufactured by Toshiba Silicone Co., Ltd.) only (referred to as masticate 1), Silicone rubber (manufactured by Shin-Etsu Chemical Co., Ltd.) only (referred to as masticate 2), 70 parts by weight of silicone rubber and ethylene-propylene copolymer 30 parts by weight of rubber (manufactured by Sumitomo Chemical Co., Ltd.) (referred to as masticate 3), 50 parts by weight of silicone rubber and 50 parts by weight of ethylene-propylene copolymer rubber (referred to as masticate 4), 30 parts by weight of silicone rubber And 70 parts by weight of ethylene-propylene copolymer rubber (referred to as masticated material 5).

To the above masticated products 1 to 5, 2 parts by weight of dicumyl peroxide as a crosslinking agent, 10 parts by weight of paraffin oil as a lubricant, and silicone powder 1 as a surface modifier
0 parts by weight, kneading while adding with a roll machine, kneaded material 1
5 was obtained. The above kneaded materials 1 to 5 are aged at room temperature for 24 hours,
Sheeting was performed to a thickness of 5 mm using a calender to obtain a sheet. This sheet was prepared by cleaning the surface with toluene.
Affixed to a 20mm, 120mm wide iron plate, 160 ℃, 6
Samples were prepared by press vulcanization under the conditions of ２０20 minutes, which were designated as samples 1 to 5 of the present invention. The samples 1 and 2 of the present invention were pretreated by applying a butyl rubber-based primer to an iron plate in advance in consideration of adhesiveness.

As a comparative example, ethylene-propylene copolymer rubber, polychloroprene rubber, natural rubber, and fluorine rubber were individually kneaded, and a kneaded product having a general composition was obtained from each of the kneaded materials. These kneaded materials were aged at room temperature for 24 hours, and sheeted to a thickness of 5 mm with a calender to obtain a sheet. These sheets were adhered to a 120 mm long, 120 mm wide iron plate whose surface was cleaned with toluene, press-vulcanized under the conditions of 160 ° C. and 6 to 20 minutes to prepare samples, and samples 1 to 4 of comparative examples were prepared. And

After measuring the contact angles and peeling forces of the vulcanized rubber surfaces of the samples 1 to 5 of the present invention and the samples 1 to 4 of the comparative example with water, the samples were hung on a rope, and were measured from an observation tower in a laver farm. It was immersed in the sea, and the degree of adhesion of barnacles was examined.

[0036]

[Table 1]

In Table 1, the hardness is JIS K630.
1 Measured by the spring hardness test method specified in the vulcanized rubber test method. The contact angle with water was measured by Kyowa Interface Science Co., Ltd. “Wafer processing evaluation device” CA-S150. As the liquid, distilled water was used.

The peel force was measured as follows. First, the surface of the sample was washed with isopropyl alcohol and dried at room temperature for 5 hours. Dried sample and Nitto Denko Corporation
A pressure-sensitive adhesive tape (product number 31B) was overlaid and pressed with a metal roll having a weight of 1 kgf to attach and adhere. A load of 20 kg / cm ² was applied to the attached sample, and 25 ° C.
Hold for time and adjust. Prepare the adjusted sample with Shinto Kagaku Co., Ltd.
The peeling force was measured using a Tribokia HEIDON type 14DR manufactured by Toshiba Corporation. In the column of color tone, the description “transparent” indicates colorless and transparent, the description “white” indicates white opaque, and the description “black” indicates black opaque. In addition, hardness and color tone are described as reference for knowing approximate physical properties.

(Discussion) In the samples 1 to 5 of the present invention, no barnacles adhered during the immersion period of 1 to 3 years. However, the barnacles adhered to the samples 1-4 of the comparative example during the immersion period of one year. From this, the contact angle with water exceeds 100 °, and the peel force is 30 g / cm.
If it is less than the above, it can be seen that the adhesion of marine organisms can be prevented. Since the rubber composition does not use a compound that emits toxic ions, it naturally does not pollute the ocean and destroy the environment.

[0040]

Example 2 The above kneaded material 3 was thickened by a calender machine.
Sheeting was performed to 5 mm to obtain a sheet. Further, in the kneaded material 5, ethylene tetrafluoride powder was used in place of the silicone powder, and the kneaded material was sheeted to a thickness of 2.5 mm with a calender. The former sheet has good water repellency and releasability, and the latter sheet has relatively good adhesion to the former sheet and FRP described below.

First, the latter sheet is adhered to FRP (glass fiber reinforced unsaturated polyester) 120 mm long and 120 mm wide, the surface of which is cleaned with toluene, and then the former sheet is adhered to the surface of the adhered latter sheet. Was affixed. This was press-vulcanized at 160 ° C. for 6 to 20 minutes to produce a sample, which was designated as Sample 6 of the present invention.

After measuring the contact angle with water and the peeling force of the vulcanized rubber surface of the sample 6 of the present invention, it was hung on a rope and placed in the sea near the quay in a power plant where the temperature of seawater was high due to drainage. After immersion, the degree of adhesion of barnacles was examined.

[0043]

[Table 2]

(Consideration) Since the upper layer has the same composition as the sample 3 of the present invention in Example 1, the same result as that of the sample 3 of the present invention is obtained. FR with poor adhesion
Although the kneaded material 5 in the lower layer, that is, the kneaded material in which the mixing ratio of the polymer having the main chain is large is used, the upper layer sheet (the former sheet) and the FRP It has been found that the adhesive strength between them is sufficient. In addition, since the rubber composition does not use a compound that emits toxic ions, it naturally does not pollute the ocean and destroy the environment.

[0045]

Example 3 In the masticated products 3 to 5 in Example 1,
Styrene instead of ethylene-propylene copolymer rubber
The same operation was performed using butadiene copolymer rubber, and the obtained masticated materials were used as masticated materials 7 to 9. Furthermore, kneaded material 3 ~
5, a mixture of fluorine oil and silicone oil is used in place of paraffin oil, and a mixture of ceramic powder and polyethylene wax is used in place of silicone powder, and the same operation is performed. -9. 20 parts by weight of the kneaded materials 7 to 9 are dissolved in 80 parts by weight of toluene, and the paints 1 to 3 of the present invention are dissolved.
And

As a comparative example, ethylene-propylene copolymer rubber, polychloroprene rubber, natural rubber, and fluororubber were individually kneaded, and a kneaded product having a general composition was obtained from each of the kneaded materials. 20 parts by weight of them are
It was dissolved in parts by weight to obtain paints 1 to 4 of comparative examples.

Paints 1 to 3 of the present invention and paints 1 to 4 of comparative examples
Are coated with an iron plate having a length of 120 mm and a width of 120 mm which has been cleaned with toluene, coated with a butyl rubber-based primer, and subjected to pretreatment. Next, it is dried, and is at room temperature to 100 ° C for 5 minutes to
Indirect vulcanization was performed under the condition of 7 days to form a coating film having a thickness of 1 mm, and samples 7 to 9 of the present invention and samples 5 to 8 of comparative examples were produced. After measuring the contact angle with water and the peeling force of the vulcanized rubber surface of the samples 7 to 9 of the present invention and the samples 5 to 8 of the comparative examples, the vulcanized rubber was suspended on a rope, and the temperature of the seawater was increased by drainage. They were immersed in the sea near the quay in the facility for one year, and the degree of barnacle adhesion was examined.

(Consideration) The rubber compositions of the samples 7 to 9 of the present invention are almost the same as the rubber compositions of the samples 3 to 5 of the present invention in Example 1, and the rubber compositions of the samples 5 to 8 of the comparative example. Is almost the same as the rubber compositions of Comparative Examples Samples 1 to 4. Although not shown, the contact angles of water on the vulcanized rubber surfaces of samples 7 to 9 of the present invention, the peeling force, and the fact that barnacles do not adhere are almost the same as those of samples 3 to 5 of the present invention in Example 1. there were. Therefore, it is understood that the rubber compositions of Samples 7 to 9 of the present invention can be applied as they are as paints.

On the other hand, Samples 5 to 8 of Comparative Examples were almost the same as Samples 1 to 4 of Comparative Examples, such as the contact angle of the vulcanized rubber surface with water, the peeling force and the adhesion of barnacles. Therefore, sample 5 of the comparative example
It can be seen that the rubber compositions Nos. To 8 cannot be used as paints. Since the rubber compositions of Samples 7 to 9 of the present invention do not use a compound that emits toxic ions, they naturally pollute the ocean and do not destroy the environment.

The terms and expressions used in the present specification are for explanation only, are not restrictive, and do not exclude terms and expressions equivalent to the above-mentioned terms and expressions. Further, the present invention is not limited to the illustrated embodiment, and various modifications are possible within the scope of the claims.

[0051]

The present invention has the above configuration and has the following effects. (A) The marine organism adhesion-preventing rubber composition according to the present invention comprises a silicone rubber or a mixture of silicone rubber and a polymer having a chain-like main chain, a lubricant capable of preventing marine organisms from adhering, and / or Or it contains a surface modifier. Therefore, in addition to the silicone rubber itself having water repellency, the lubricant blooms or bleeds on the surface after crosslinking or curing, increasing the water repellency and releasability, and the surface modifier is A microscopic uneven surface is formed on the surface to reduce the contact area and increase the releasability. As a result, the marine organism adhesion preventing rubber composition can prevent marine organisms from adhering easily, and even if they adhere, they can be immediately peeled off, fall into the sea, and substantially prevent adhesion. In addition, since no compound that emits toxic ions is used, there is no danger of polluting the ocean and destroying the environment.

(B) According to the marine organism adhesion prevention method of forming a sheet with the marine organism adhesion prevention rubber composition and sticking it to a marine structure or ship, the sheet is thicker than the coating film, so that the lubricant or the surface is used. Since the additive amount of the modifier is large and has sufficient water repellency and releasability, it is possible to sufficiently prevent marine organisms from attaching to marine structures and ships that are immersed in the sea for a long time. .

(C) A sheet to be attached to a marine structure or a ship is a multilayer structure, and a sheet to which marine life is unlikely to adhere is used as an upper layer (a layer in contact with marine life), and a lower layer (a marine structure or a ship). The layer using the upper layer and a sheet having good adhesion to marine structures and ships as the layer in contact with
Even in the marine environment where marine life is very easy to attach, the upper sheet can reliably prevent marine life from attaching. Further, even if the upper sheet itself has poor adhesion to the marine structure or the ship due to the lower sheet, the upper layer sheet can be securely bonded to the marine structure or the ship.

(D) According to the method of forming a coating film on a marine structure or ship by using the marine organism adhesion preventing rubber composition according to the present invention as a solution to prevent marine organisms from adhering, a simple operation can be performed in a short time. In the meantime, a coating film can be formed on a marine structure or the like, and the cost can be reduced. And compared to sheets, etc., the coating film is thin, so the amount of lubricant and surface modifier added is small, but it exhibits water repellency and releasability for marine structures that are immersed in the sea for a short period of time. Marine organisms can be prevented from attaching. Further, even if the shape of the marine structure is complicated, a coating film having a uniform thickness can be formed by applying the solution, so that the application range is wider than when a sheet or the like is attached.

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Shimiko Himeno 2432-3 Aikawa-cho, Kurume-shi, Fukuoka Prefecture Inside the Kurume Research Park, Inc. (72) Inventor Kenji Yoshino 215 Takami, Ukiha-cho, Ukiha-gun, Fukuoka Prefecture Inside Unistar Co., Ltd. (72) Inventor Taketo Haraguchi 601 Noda, Tanushimaru-cho, Ukiha-gun, Fukuoka Prefecture F-term (reference) 4J002 AA00X AE05Y BB03Z BD15Z CP03W CP03Y CP03Z DJ037 EB066 EF056 FA08Z FD17Z FD17Y GN00 GT00 4J038 CB022 CD092 CD122 DL031 JA27 JA35 JC32 MA02 NA05 PB07

Claims (8)

[Claims] 1. A method comprising: a silicone rubber or a mixture of a silicone rubber and a polymer having a linear backbone, and a lubricant and / or a surface modifier capable of preventing marine organisms from adhering. A rubber composition for preventing marine organisms from adhering. 2. A mixture of 30 to 100 parts by weight of silicone rubber and 70 parts by weight or less of a polymer having a main chain, and a lubricant and / or surface modifier capable of preventing marine organisms from adhering. And a rubber composition for preventing marine organisms from adhering, comprising: 3. The rubber composition according to claim 1, wherein the lubricant is at least one selected from fatty acids, paraffin oils, fluorine oils and silicone oils. 4. The method according to claim 1, wherein the surface modifier is at least one selected from polyethylene wax, bulk clay, ethylene tetrafluoride powder, silicone powder, ceramic powder and silane coupling agent. 3. The rubber composition for preventing marine organism adhesion according to 1 or 2. 5. A contact angle with water after vulcanization or curing of 10
The marine organism adhesion-preventing rubber composition according to any one of claims 1, 2, 3 and 4, wherein the rubber composition has a peeling force of more than 0 ° and less than 30 g / cm. 6. A step of forming the marine organism adhesion-preventing rubber composition according to claim 1, 2, 3, 4, or 5 into a sheet, and attaching the sheet to a marine structure or a ship. The marine organism adhesion prevention method. 7. A sheet to be attached to a marine structure or a ship is a sheet to which marine organisms are unlikely to adhere, a sheet to which the marine organisms are less likely to adhere, and a sheet having good adhesion to marine structures or ships. The method for preventing marine organisms from adhering according to claim 6, wherein the marine organisms are stacked to form a multilayer. 8. A step of forming the marine organism adhesion-preventing rubber composition according to claim 1, 2, 3, 4, or 5 into a solution, and a step of forming a coating film on a marine structure or a ship using the solution. A method for preventing marine organisms from adhering.