JPH11321779A - Floating buoy coated by glass coating layer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a floating buoy simply structured and protected from adhesion of marine creatures on its surface. SOLUTION: A floating buoy 1 is coated by a glass coating layer 3. When the floating buoy 1 is provided with a painted face 2, the glass coating layer 3 is applied over the painted face 2 desirably The glass coating layer 3 is formed preferably by heating and drying a mixture of an organic metal compound, organosiloxane, and organopolysiloxane at 50 deg.C or less in the presence of boronic ions and halogenous ions.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a marine buoy used for displaying a specific area on the sea, and more particularly,
The present invention relates to a marine buoy capable of avoiding the attachment of marine organisms such as shellfish and seaweed.

[0002]

2. Description of the Related Art Conventionally, various sizes of hollows have been used to display the navigation route of a ship while avoiding shallow water on the sea floor, confirm the position of a submarine structure, and support a marine structure. A marine buoy with a body shape is used.

[0003] Marine buoys are usually moored at predetermined locations on the sea floor and used for long periods of months to years.
Due to such long-term use, marine organisms such as shellfish or seaweed may adhere to the surface of the buoy below the waterline.
These marine organisms are those in which eggs and spores floating in the sea settle on the surface of the buoy.

[0004]

When such marine organisms are attached, the weight of the marine buoy increases, but when the attached amount exceeds a predetermined amount, most of the buoy is buried in the sea, or
The buoy surface may be covered with marine organisms, making it invisible from the sea and may not be able to function as a buoy. The removal of living creatures by hand is performed.

However, the above marine organisms are firmly attached to the surface of the buoy, so it is difficult to remove them, and the work efficiency is low due to manual work. In addition, when marine organisms are mechanically scraped off the buoy surface using a member such as a knife or a scraper, the work itself is dangerous and the buoy may be damaged. And even if marine organisms can be removed from the buoy surface, when they are used at sea, it is inevitable that marine organisms will reattach to the buoy surface.

An object of the present invention is to solve the above-mentioned conventional problems. That is, the object of the present invention is:
An object of the present invention is to provide a marine buoy having a simple structure and having no marine organisms attached to the surface.

[0007]

The above objects of the present invention are attained by a marine buoy characterized by being coated with a glass coating layer. When the marine buoy has a painted surface, the glass coating layer is preferably coated on the painted surface. Further, the glass coating layer is formed by mixing a mixture of an organometallic compound, an organosiloxane, and an organopolysiloxane in the presence of boron ions and halogen ions.
It is preferably formed by heating and drying at a temperature of not more than ° C.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to the drawings, but the present invention is by no means limited to these embodiments.

FIG. 1 is a schematic sectional view showing a layer structure of a marine buoy according to the present invention. As illustrated, the marine buoy according to the present embodiment has a substantially spherical shape, and the inside is hollow. In addition, as the shape of the marine buoy, in addition to a spherical shape, a cylindrical shape, a cubic shape, a rectangular parallelepiped, a conical shape, a pyramid shape, various polyhedrons, and various other irregular shapes can be adopted as necessary. Further, the interior of the marine buoy in the present invention may not be hollow, and may have a shape in which a light material having a specific gravity smaller than that of seawater is filled.

The marine buoy according to the present embodiment includes a buoy main body 1 having a layer having a predetermined thickness, a painted surface 2 and a glass coating layer 3. The painted surface 2 is formed on the surface of the buoy main body 1. Further, the outer surface is covered with a glass coating layer 3.

Various structural materials can be used as the material for the buoy body 1, but plastic materials are preferable in terms of lightness and cost, and known plastic materials such as polyethylene, polypropylene, polyvinyl chloride, and polyester are used. Material can be used. Further, a coloring agent may be added to these plastic materials to be colored to a predetermined color.

As a method for molding the buoy main body 1, known molding methods such as blow molding and injection molding can be used.
Blow molding is preferable in that the thickness of the layer of the buoy main body 1 can be easily controlled and the hollow portion inside can be manufactured integrally.

The painted surface 2 on the surface of the buoy main body 1 is composed of an extremely thin coating film, and decorates the buoy main body 1.
Has a function to prevent corrosion. It is preferable to use an acrylic or urethane-based curable paint as a paint for forming the painted surface 2 from the viewpoint of securing adhesion to the buoy body 1 and a glass coating layer 3 described later. The paint may be used not only one kind but also plural kinds at the same time.
Further, it is not necessary to paint the entire surface of the buoy main body 1, and it may be partially painted as needed. Further, the painted surface 2 may be a laminate of a coating film composed of a plurality of coating film layers.

In this embodiment, a glass coating layer 3 is formed on the painted surface 2. As described above, by separating the buoy main body 1 from seawater by the glass coating layer 3, it is possible to prevent marine organisms from adhering to the buoy main body 1 or its painted surface 2. Moreover, since marine organisms do not usually adhere to the glass surface, there is no adverse effect such as the increase in the weight of the buoy due to the attachment of marine organisms to the surface of the buoy and the deterioration of visibility at sea.

[0015] Usually, the melting temperature of glass is much higher than the softening temperature of plastics, and some plastics can exceed their combustion temperatures. Therefore, when the buoy body 1 is made of a plastic having a relatively low softening temperature such as polyethylene, the glass coating layer 3
Must be formed at 50 ° C. or lower, that is, at room temperature.
Therefore, in the present invention, a mixture of an organometallic compound, an organosiloxane, and an organopolysiloxane is applied onto the buoy body 1 or its painted surface 2 and heated and dried at a temperature of 50 ° C. or less in the presence of boron ions and halogen ions. Thus, the glass coating layer 3 is formed.

As the organometallic compound, MR ² _m (O
R ¹⁾ _nm of the general formula (M is a metal of oxidation number n, R ^1, R ² is an alkyl group, m is 0 to (n-1) a metal alkoxide represented by the representative) integers are preferred. R ¹ and R ² may be the same or different groups, but are particularly preferably an alkyl group having 4 or less carbon atoms. As such a metal alkoxide, for example, zinc propoxide Zn (OP
r) ₂ , tetraethoxysilane Si (OEt) ₄ , aluminum isopropoxide Al (OPr-i) ₄ , triethoxyborane B (OEt) ₃ , magnesium isopropoxide Mg (OPr-i) ₂ , lithium ethoxide LiOE
t and the like.

As the organosiloxane and the polyorganosiloxane, linear alkylsiloxanes having alkoxy groups such as methoxy and ethoxy groups in the side chains and condensates thereof are preferable. Those having a molecular weight are preferred from the viewpoint of coating workability.

As a source of boron ions, trialkoxyborane B (OR) ₃ is suitable.
Triethoxyborane B (OEt) ₃ is preferred. And, as the halogen ion, a fluorine ion F ⁻ , a chloride ion Cl ⁻ or a mixture thereof is preferably used,
The supply sources are ammonium hydrogen fluoride NH ₄ F · HF, sodium fluoride NaF, and NH ₄ Cl, respectively.
And the like. The curing mechanism of the mixture of components is not clear, resulting from the boron ions and halogen ions BX ₄ ^- complex ion (X ^- is a halide ion) acts on ^{_{MR 2 m (OR 1) nm}} MX ^- _{those n + 1} becomes, which organosiloxanes in repeated hydrolysis and dehydration condensation, polyorganosiloxane acts, partially organosiloxanes, metal oxides polyorganosiloxane is contained glass body is formed It is presumed. Such a glass coating agent curable at room temperature is HE Glass manufactured by Fine Glass Technology Co., Ltd.
G of ATLESS GLASS GS-600 series
S-600-1 (A) can be mentioned.

In the present invention, any surface of the buoy main body 1 or its painted surface 2 may be coated with the glass coating layer 3, but the adhesive property of the urethane or acrylic component usually contained in the paint and the polyorganosiloxane. In view of the compatibility, the glass coating layer 3 coated on the painted surface 2 has high durability. Therefore, coating is applied to the entire surface of the buoy main body 1 to form a painted surface 2, and a glass coating agent is further applied thereon and heat-cured to form the glass coating layer 3. It is preferable from the aspect of properties.

[0020]

According to the present invention, the following effects can be obtained.

(1) Since marine organisms do not adhere to marine buoys, it is not necessary to remove marine organisms required for conventional buoys. Therefore, it is not necessary to collect the marine buoy and remove the surface of the marine buoy for removing marine organisms, and it is possible to greatly reduce the cost of maintaining and cleaning the marine buoy.

(2) Since it is only necessary to form a glass coating layer on the surface of a conventional buoy, the construction is simple. In addition, since there is no need to use a coating agent that is toxic to living organisms, there is no risk of environmental pollution.

(3) When a glass coating layer is formed on the painted surface, the adhesion of the glass coating layer to the buoy surface is improved.

(4) When a glass coating layer is formed by heating and drying a mixture of an organometallic compound, an organosiloxane, and an organopolysiloxane in the presence of boron ions and halogen ions,
Since the glass coating layer can be formed on the buoy surface at a temperature of not more than ℃, that is, at room temperature, the construction is further facilitated.

[Brief description of the drawings]

FIG. 1 is a schematic sectional view showing a layer structure of a marine buoy of the present invention.

Claims (3)

[Claims] 1. A marine buoy covered by a glass coating layer. 2. The marine buoy has a painted surface.
The marine buoy according to claim 1, wherein the painted surface is covered with the glass coating layer. 3. The glass coating layer is formed by heating and drying a mixture of an organometallic compound, an organosiloxane, and an organopolysiloxane at a temperature of 50 ° C. or less in the presence of boron ions and halogen ions. The marine buoy according to claim 1 or 2, wherein