JP2006291085A - Additive for anti-fouling coating - Google Patents
Additive for anti-fouling coating Download PDFInfo
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本発明は、船舶，海上ブイ，航行安全浮標識，防波用テトラポット（登録商標），護岸壁，養殖用構造物，海洋資源掘削基礎構造物等への水棲生物の付着を抑制する防汚塗料に添加されて、当該防汚塗料の効果の持続期間を延長する防汚塗料用添加剤に関する。 The present invention is an antifouling agent that suppresses the adhesion of aquatic organisms to ships, marine buoys, navigational safety floating signs, wave protection tetrapots (registered trademark), revetments, aquaculture structures, marine resource drilling foundation structures, etc. The present invention relates to an antifouling paint additive which is added to a paint to extend the duration of the effect of the antifouling paint.
船舶の船底等の長期間水にさらされる没水部には、フジツボ，ムラサキガイ，ユウレイボヤ等の動物系または青藻や黒藻等の植物系の水棲生物が短期間で付着し繁殖して、その外観を損ねたり機能が害されるという問題があるが、特に船舶の場合、船底への水棲生物の付着による船速低下や燃費悪化等を防ぐため、付着した水棲生物を定期的に除去せざるを得ず、その作業に多大の費用と労力を要することとなっていた。 Aquatic organisms of animal systems such as barnacles, mussels and flounders, or plant-based aquatic organisms such as blue algae and black algae adhere to and propagate in a short period of time on the submerged areas exposed to water for a long time, such as the ship's bottom. Although there is a problem that the appearance is impaired and the function is impaired, especially in the case of a ship, the attached aquatic organisms must be periodically removed in order to prevent a decrease in ship speed and deterioration of fuel consumption due to the attachment of aquatic organisms to the bottom of the ship. Therefore, the work required a great deal of cost and labor.
そこで従来より、水棲生物の付着を抑制してその除去作業の労力を軽減しその費用を低減するために、亜酸化銅を含有させた防汚塗料を塗布しフジツボ等動物系水生生物の付着を抑制したり、あるいは有機系の防汚塗料を塗布し藻類等植物系の水棲生物の付着を抑制することが行われている。 Therefore, conventionally, in order to suppress the attachment of aquatic organisms, reduce the labor of the removal work, and reduce the cost, an antifouling paint containing cuprous oxide is applied to prevent the attachment of animal aquatic organisms such as barnacles. It has been practiced to suppress adhesion of organic aquatic organisms such as algae by applying organic antifouling paints.
その防汚塗料は、塗膜自体が溶解してゆくことにより水棲生物の付着を防ぐ自己研磨型のものと、塗膜表面の合成高分子樹脂が加水分解により水中に均一に溶解していくことにより水棲生物の付着を防ぐ加水分解型のものとに大別されるが、近年普及しているＦＲＰ素材を使用した小型船舶には加水分解型のものが多く用いられるようになっている（たとえば、非特許文献１〜５参照）。
しかし、その防汚塗料の溶解速度は海水温度の影響を大きく受けるもので、近年の世界的な海水温度の上昇等のために水棲生物付着を抑制する効果が薄れやすくなっているという問題があり、また、河川からの水が流入する入江や湾の汽水域でもその効果が薄れやすく、実際には、数ヶ月程度の短期間でフジツボ等が付着してしまっていた。 However, the dissolution rate of the antifouling paint is greatly affected by seawater temperature, and there is a problem that the effect of suppressing the adhesion of aquatic organisms tends to fade due to the recent rise in seawater temperature worldwide. In addition, the effectiveness of the bay and the brackish water area where the water from the river flows in is easily diminished, and in fact, barnacles and the like were attached in a short period of several months.
そこで、本発明は、従来の防汚塗料に添加して、その水棲生物の付着抑制効果の持続期間を延長する防汚塗料用添加剤の提供を課題とする。 Then, this invention makes it a subject to provide the additive for antifouling paints which add to the conventional antifouling paint and extend the duration of the adhesion suppression effect of the aquatic organism.
請求項１記載の本発明防汚塗料用添加剤は、珪藻土粉に溶剤と分散剤とを加えて混合調整したものである。 The additive for an antifouling paint of the present invention according to claim 1 is prepared by adding a solvent and a dispersant to diatomaceous earth powder and mixing and adjusting it.
請求項２記載の本発明は、ベントナイト粉を配合した請求項１記載の防汚塗料用添加剤である。 The present invention according to claim 2 is the antifouling paint additive according to claim 1 in which bentonite powder is blended.
請求項３記載の本発明は、フライアッシュを配合した請求項１または２記載の防汚塗料用添加剤である。 The present invention described in claim 3 is the antifouling paint additive according to claim 1 or 2, wherein fly ash is blended.
請求項４記載の本発明は、炭素粉を配合した請求項１，２または３記載の防汚塗料用添加剤である。 The present invention according to claim 4 is the additive for antifouling paint according to claim 1, 2 or 3, wherein carbon powder is blended.
請求項５記載の本発明は、セラミック粉を配合した請求項１，２，３または４記載の防汚塗料用添加剤である。 The present invention according to claim 5 is the additive for antifouling paint according to claim 1, 2, 3 or 4, wherein ceramic powder is blended.
請求項６記載の本発明は、上記珪藻土粉が、約1000℃で焼成した焼成珪藻土を粉砕して粒度２〜50μｍの微粒子状にしたもので、SiO2を65〜80％含有している請求項１，２，３，４または５記載の防汚塗料用添加剤である。 The present invention according to claim 6 is characterized in that the diatomaceous earth powder is obtained by pulverizing calcined diatomaceous earth calcined at about 1000 ° C. into fine particles having a particle size of 2 to 50 μm, and containing 65 to 80% of SiO 2 . Item 6. An antifouling paint additive according to Item 1, 2, 3, 4 or 5.
請求項７記載の本発明は、上記珪藻土粉が、風乾した非焼成珪藻土を粉砕して粒度２〜50μｍの微粒子状にしたもので、SiO2を65〜80％含有している請求項１，２，３，４または５記載の防汚塗料用添加剤である。 The present invention according to claim 7 is characterized in that the diatomaceous earth powder is obtained by pulverizing air-dried unfired diatomaceous earth into fine particles having a particle size of 2 to 50 μm, and containing 65 to 80% of SiO 2 . 2. The antifouling paint additive according to 2, 3, 4 or 5.
請求項８記載の本発明防汚塗料用添加剤は、40〜60重量％の焼成珪藻土粉と、30〜50重量％のベントナイト粉に、３〜７重量％のミネラルスピリットを溶剤として加え、また、1.5〜3.5重量％のソルビタンモノオレートおよび1.5〜3.5重量％のソルビタンエステルを分散剤として加え、これらを混合してコロイダル化してなる。 The additive for an antifouling paint of the present invention according to claim 8 is obtained by adding 3 to 7% by weight of mineral spirit as a solvent to 40 to 60% by weight of calcined diatomaceous earth powder and 30 to 50% by weight of bentonite powder, 1.5 to 3.5% by weight of sorbitan monooleate and 1.5 to 3.5% by weight of sorbitan ester are added as dispersing agents, and these are mixed to be colloidalized.
請求項９記載の本発明防汚塗料用添加剤は、40〜70重量％の非焼成珪藻土粉と、20〜40重量％のフライアッシュ粉に、5〜10重量％のミネラルスピリットを溶剤として加え、また、３〜７重量％のソルビタンモノオレートおよび３〜７重量％のソルビタンエステルを分散剤として加え、これらを混合してコロイダル化してなる。 The additive for antifouling paint of the present invention according to claim 9 is obtained by adding 5 to 10% by weight of mineral spirit as a solvent to 40 to 70% by weight of non-fired diatomaceous earth powder and 20 to 40% by weight of fly ash powder. Further, 3 to 7% by weight of sorbitan monooleate and 3 to 7% by weight of sorbitan ester are added as a dispersant, and these are mixed to be colloidalized.
本発明防汚塗料用添加剤は珪藻土粉を含有しているから、これを防汚塗料に添加すれば、当該防汚塗料をそのまま使用する場合に比べて、水棲生物の付着抑制効果の持続期間を大幅に延長することができる。 Since the additive for antifouling paint according to the present invention contains diatomaceous earth powder, if this is added to the antifouling paint, the duration of the effect of suppressing the adhesion of aquatic organisms compared to the case of using the antifouling paint as it is. Can be extended significantly.
以下、本発明について実施例を挙げて詳しく説明するが、本発明はそれらの実施例に限定されるものではない。 EXAMPLES Hereinafter, although an Example is given and this invention is demonstrated in detail, this invention is not limited to those Examples.
100g(50重量％)の焼成珪藻土粉と、80g(40重量％)のベントナイト粉に、10g(5重量％)のミネラルスピリットを溶剤として加え、また、５g(2.5重量％)のソルビタンモノオレートおよび５g(2.5重量％)のソルビタンエステルを分散剤として加え、これらを混合してコロイダル化し本発明に係る防汚塗料用添加剤ａを0.2kg調製した。その配合を表１に示した。 To 100 g (50 wt%) calcined diatomaceous earth powder and 80 g (40 wt%) bentonite powder, 10 g (5 wt%) mineral spirit is added as a solvent, and 5 g (2.5 wt%) sorbitan monooleate and 5 g (2.5% by weight) of sorbitan ester was added as a dispersant, and these were mixed to colloidal to prepare 0.2 kg of antifouling paint additive a according to the present invention. The formulation is shown in Table 1.
なお、上記焼成珪藻土粉の配合量は40〜60重量％の範囲で増減することができる。また、ベントナイト粉の配合量は、30〜50重量％の範囲で増減してもよいが、これを全く配合しないこととしてもよい。
また、溶剤および分散剤の配合量もたとえば１〜５重量％の範囲で適宜増減することができる。
In addition, the compounding quantity of the said baked diatomaceous earth powder can be increased / decreased in the range of 40 to 60 weight%. Moreover, although the compounding quantity of bentonite powder may be increased / decreased in the range of 30-50 weight%, it is good also as not mix | blending this at all.
Moreover, the compounding quantity of a solvent and a dispersing agent can also be increased / decreased suitably in the range of 1 to 5 weight%, for example.
上記焼成珪藻土粉は、珪藻土を1000〜1500℃で焼成後、２〜50μｍ、好ましくは３〜５μｍの球形微粒子状に破砕し粒度調整して得られたものである。これは多孔質ガラス体のもので、その成分としては、SiO2（熱酸化シリコン（ケイ素））を70.3％，Al2O3（酸化アルミニウム（アルミナ））を25.0％，TiO2（酸化チタン）を0.97％，Fe2O3（酸化鉄（三酸化二鉄））を1.51％，CaO（酸化カルシウム（生石灰））を0.25％，MgO（酸化マグネシウム）を0.52％，K2O（酸化カリウム）を1.19％，Na2O（酸化ナトリウム）を0.15％含有し、吸放湿特性，遠赤外線放射特性等に優れているものである。 The calcined diatomaceous earth powder is obtained by calcining diatomaceous earth at 1000 to 1500 ° C., crushing it into spherical fine particles of 2 to 50 μm, preferably 3 to 5 μm, and adjusting the particle size. This is a porous glass body, and its components are SiO 2 (thermally oxidized silicon (silicon)) 70.3%, Al 2 O 3 (aluminum oxide (alumina)) 25.0%, TiO 2 (titanium oxide) 0.97%, Fe 2 O 3 (iron oxide (ferric trioxide)) 1.51%, CaO (calcium oxide (quicklime)) 0.25%, MgO (magnesium oxide) 0.52%, K 2 O (potassium oxide) 1.19% and 0.15% Na 2 O (sodium oxide), it has excellent moisture absorption and release characteristics, far-infrared radiation characteristics, etc.
なお、焼成珪藻土粉は、上に示したものとは含有成分比を異にするものを用いてもよく、その粒度も適宜変更できる。 The baked diatomaceous earth powder may have a different component ratio from that shown above, and the particle size can be changed as appropriate.
上記ベントナイト粉は、止水性，吸着性，安定性，粘性等に富むものである。 The bentonite powder is rich in water-stopping property, adsorptivity, stability, viscosity and the like.
また、上記に加えて、炭素粉を２〜５重量％、または／および、セラミック粉を１〜３重量％配合するようにしてもよい。これにより微粒子状の上記珪藻土粉の分子間結合の安定性を向上させることができる。 In addition to the above, 2 to 5% by weight of carbon powder and / or 1 to 3% by weight of ceramic powder may be blended. Thereby, stability of the intermolecular bond of the fine diatomaceous earth powder can be improved.
上記の防汚塗料用添加剤ａ0.2kgを、比重1.80，粘度85〜100KUの市販の加水分解型ＦＲＰ船用防汚塗料Ｐ１（大日本塗料「シーブルーエース」，油性，色＝ブルー）4kgに添加して混合し防汚塗料Ａを得た（表２）。 Add 0.2kg of the above antifouling paint additive a to 4kg of commercially available hydrolyzable FRP ship antifouling paint P1 (Dainippon Paint "Sea Blue Ace", oily, color = blue) with a specific gravity of 1.80 and a viscosity of 85-100KU. Antifouling paint A was obtained by adding and mixing (Table 2).
上記防汚塗料用添加剤ａの防汚塗料Ｐ１に対する添加量は、適宜増減変更することができる。 The amount of the antifouling paint additive a added to the antifouling paint P1 can be appropriately increased or decreased.
上記実施例１で用いたのと同じ、本発明に係る防汚塗料用添加剤ａを0.2kg、市販の防汚塗料Ｐ２（アサヒペイント「多用途ペイント」，水性，色＝ブルー）4kgに添加して混合し防汚塗料Ｂを得た（表２）。 The same antifouling paint additive a according to the present invention as used in Example 1 above is added to 0.2 kg, and commercially available antifouling paint P2 (Asahi Paint “Multipurpose Paint”, aqueous, color = blue) is added to 4 kg. And mixed to obtain an antifouling paint B (Table 2).
上記防汚塗料用添加剤ａの防汚塗料Ｐ２に対する添加量は、適宜増減変更することができる。 The amount of the antifouling paint additive a added to the antifouling paint P2 can be appropriately increased or decreased.
100g(50重量％)の非焼成珪藻土粉と、60g(30重量％)のフライアッシュ粉に、溶剤として20g(10重量％)のミネラルスピリットを、また、分散剤として10g(5重量％)のソルビタンモノオレートおよび10g(5重量％)のソルビタンエステルを加えて混合しコロイダル化し、本発明に係る防汚塗料用添加剤ｂを0.2kg調製した。その配合を表１に示した。 100g (50% by weight) unfired diatomaceous earth powder, 60g (30% by weight) fly ash powder, 20g (10% by weight) mineral spirit as solvent, and 10g (5% by weight) as dispersant Sorbitan monooleate and 10 g (5% by weight) of sorbitan ester were added and mixed to make a colloid, whereby 0.2 kg of the antibacterial paint additive b according to the present invention was prepared. The formulation is shown in Table 1.
なお、上記非焼成珪藻土粉の配合量は40〜70重量％の範囲で増減できる。また、フライアッシュ粉の配合量は、5重量％〜45重量％の範囲で増減してもよいが、これを全く配合しないこととしてもよい。
ソルビタンモノオレートおよびソルビタンエステルは、それぞれ３〜７重量％の範囲で増減できる。
In addition, the compounding quantity of the said non-baking diatomaceous earth powder can be increased / decreased in the range of 40 to 70 weight%. Moreover, although the compounding quantity of fly ash powder may increase / decrease in the range of 5 weight%-45 weight%, it is good also as not mix | blending this at all.
Sorbitan monooleate and sorbitan ester can be increased or decreased in the range of 3 to 7% by weight, respectively.
上記非焼成珪藻土粉は、珪藻土を常温で風乾させて粉砕した粒度２〜50μｍ、好ましくは３〜５μｍの球形微粒子状のものである。それは、SiO2（熱酸化シリコン（ケイ素））を79.3％，Al2O3（酸化アルミニウム（アルミナ））を10.4％，TiO2（酸化チタン）を0.54％，Fe2O3（酸化鉄（三酸化二鉄））を4.12％，CaO（酸化カルシウム（生石灰））を0.86％，MgO（酸化マグネシウム）を1.24％，K2O（酸化カリウム）を1.46％，Na2O（酸化ナトリウム）を0.88％含有し、吸放湿特性，遠赤外線放射特性等に優れているものである。 The non-fired diatomaceous earth powder is in the form of spherical fine particles having a particle size of 2 to 50 μm, preferably 3 to 5 μm, obtained by air-drying and pulverizing diatomaceous earth at room temperature. It is composed of 79.3% SiO 2 (thermally oxidized silicon (silicon)), 10.4% Al 2 O 3 (aluminum oxide (alumina)), 0.54% TiO 2 (titanium oxide), Fe 2 O 3 (iron oxide (three) Ferric oxide)) 4.12%, CaO (calcium oxide (quick lime)) 0.86%, MgO (magnesium oxide) 1.24%, K 2 O (potassium oxide) 1.46%, Na 2 O (sodium oxide) 0.88% %, And has excellent moisture absorption / release characteristics, far-infrared radiation characteristics, and the like.
また、上記フライアッシュ粉は、粒度１〜20μｍ、好ましくは7μｍに粉砕されたもので、それはSiO2（熱酸化シリコン（ケイ素））を70.9％，Al2O3（酸化アルミニウム（アルミナ））を19.9％，TiO2（酸化チタン）を1.08％，Fe2O3（酸化鉄（三酸化二鉄））を3.14％，CaO（酸化カルシウム（生石灰））を0.96％，MgO（酸化マグネシウム）を0.74％，K2O（酸化カリウム）を1.05％，Na2O（酸化ナトリウム）を0.28％含有し、珪藻土粉に似た孔隙構造を有するとともにポゾラン活性を呈し、分子間の安定結合作用による長期強度保持作用や通気性に優れたものである。 The fly ash powder is pulverized to a particle size of 1 to 20 μm, preferably 7 μm. It contains 70.9% SiO 2 (thermally oxidized silicon (silicon)) and Al 2 O 3 (aluminum oxide (alumina)). 19.9%, TiO 2 (titanium oxide) 1.08%, Fe 2 O 3 (iron oxide (diiron trioxide)) 3.14%, CaO (calcium oxide (quick lime)) 0.96%, MgO (magnesium oxide) 0.74 %, K 2 O (potassium oxide) 1.05%, Na 2 O (sodium oxide) 0.28%, having a pore structure similar to diatomaceous earth powder and exhibiting pozzolanic activity, long-term strength due to stable intermolecular bonding It has excellent retention and breathability.
なお、焼成珪藻土粉およびフライアッシュ粉としては、上に示したものとは含有成分比を異にするものを用いてもよい。 In addition, as a baked diatomaceous earth powder and a fly ash powder, you may use what differs in a component ratio from what was shown above.
この防汚塗料用添加剤ｂ0.2kgを、上記実施例１と同じく、４kgの防汚塗料Ｐ１に添加して混合し防汚塗料Ｃを得た（表２）。 As in Example 1 above, 0.2 kg of this antifouling paint additive b was added to 4 kg of the antifouling paint P1 and mixed to obtain an antifouling paint C (Table 2).
なお、防汚塗料用添加剤ｂの防汚塗料Ｐ１に対する添加量は、適宜増減変更することができる。 In addition, the addition amount with respect to the antifouling paint P1 of the antifouling paint additive b can be appropriately increased or decreased.
上記実施例１および２で用いたのと同じ、本発明に係る防汚塗料用添加剤ａを0.2kg、上記防汚塗料Ｐ１およびＰ２とは別製品である市販の防汚塗料Ｐ３（4kg）に添加して混合し防汚塗料Ｄを得た（表２）。 0.2 kg of the antifouling paint additive a according to the present invention, which is the same as that used in Examples 1 and 2, and a commercially available antifouling paint P3 (4 kg) which is a separate product from the antifouling paints P1 and P2. Antifouling paint D was obtained (Table 2).
上記防汚塗料用添加剤ａの防汚塗料Ｐ３に対する添加量は、適宜増減変更することができる。 The amount of the antifouling paint additive a added to the antifouling paint P3 can be increased or decreased as appropriate.
なお、上記実施例１〜３における、防汚塗料用添加剤ａまたはｂの添加によって、防汚塗料Ｐ１〜Ｐ３の色を変化させたりその組成に悪影響を与えることはなかった。また、防汚塗料用添加剤ａまたはｂをその他の市販の防汚塗料に添加した場合も、当該防汚塗料の色を変化させたりその組成に悪影響を与えることはなかった。
〈比較例１〉
In addition, the color of the antifouling paints P1 to P3 was not changed or the composition was not adversely affected by the addition of the antifouling paint additive a or b in Examples 1 to 3. Further, when the antifouling paint additive a or b was added to other commercially available antifouling paints, the color of the antifouling paints was not changed or the composition thereof was not adversely affected.
<Comparative example 1>
上記防汚塗料Ｐ１〜Ｐ３とは別製品である市販の防汚塗料Ｐ４を用意した。これには本発明防汚塗料用添加剤を添加しなかった（表２）。
〈比較例２〉
A commercially available antifouling paint P4, which is a separate product from the antifouling paints P1 to P3, was prepared. The additive for antifouling paint of the present invention was not added to this (Table 2).
<Comparative example 2>
上記防汚塗料Ｐ１〜Ｐ４とは別製品であるアメリカ製の市販の防汚塗料Ｐ５を用意した。これには本発明防汚塗料用添加剤を添加しなかった（表２）。
〈比較例３〉
A commercially available antifouling paint P5 made in the USA, which is a separate product from the antifouling paints P1 to P4, was prepared. The additive for antifouling paint of the present invention was not added to this (Table 2).
<Comparative Example 3>
上記防汚塗料Ｐ１〜Ｐ５とは別製品であるカナダ製の市販の防汚塗料Ｐ６を用意した。これには本発明防汚塗料用添加剤を添加しなかった（表２）。 A commercially available antifouling paint P6 made in Canada, which is a separate product from the antifouling paints P1 to P5, was prepared. The additive for antifouling paint of the present invention was not added to this (Table 2).
＜防汚塗料の性能評価実験１＞
上記の各実施例に係る４種類の防汚塗料Ａ〜Ｄ、および、上記の各比較例に係る３種類の防汚塗料Ｐ４〜Ｐ６計７種類を、それぞれ300mm×150mmのＦＲＰ板の一面に、刷毛とローラーを用いて１回塗りで塗布し４時間乾燥させた。いずれのＦＲＰ板についても、反対面には塗料を塗布しなかった。図１は、実験開始前の各ＦＲＰ板の塗料塗布面の状態を示した写真である。
そして、上記ＦＲＰ板を水中に10〜15cmほど沈めた状態にして船着き場に係留し、その経過を観察した。
<Performance evaluation experiment 1 of antifouling paint>
Four types of antifouling paints A to D according to each of the above examples and three types of antifouling paints P4 to P6 according to each of the above comparative examples are each provided on one surface of a 300 mm × 150 mm FRP plate. Using a brush and a roller, it was applied once and dried for 4 hours. In any FRP plate, no coating was applied to the opposite surface. FIG. 1 is a photograph showing the state of the coating surface of each FRP plate before the start of the experiment.
Then, the FRP plate was submerged 10-15 cm in water, moored at the dock, and the progress was observed.
「実験開始から14日経過時」
防汚塗料Ｐ４を塗布したＦＲＰ板の塗料塗布面には、１mm大のフジツボが50ヶほど付着していた。
また、防汚塗料Ｐ５を塗布したＦＲＰ板の塗料塗布面には、１mmほどの緑藻が付着していた。
その他のＦＲＰ板の塗料塗布面には、水棲生物の付着は認められなかった。
“When 14 days have passed since the start of the experiment”
About 50 barnacles with a size of 1 mm adhered to the coating surface of the FRP plate to which the antifouling coating P4 was applied.
Further, about 1 mm of green algae was adhered to the coating surface of the FRP plate to which the antifouling coating P5 was applied.
No adhesion of aquatic organisms was observed on the other FRP plates with the paint applied.
「実験開始から35日経過時」
防汚塗料Ｐ４を塗布したＦＲＰ板に付着していたフジツボは５mm大にまで成長しており、また、このＦＲＰ板の塗料塗布面全面に藻が付着していた。
防汚塗料Ｐ５を塗布したＦＲＰ板には、その塗料塗布面全面に１mm大のフジツボが付着し、藻も20mmに成長していた。
防汚塗料Ｐ６を塗布したＦＲＰ板の塗料塗布面には、スライムが付着し、当該塗料の色が褪せていた。
防汚塗料Ａを塗布したＦＲＰ板および防汚塗料Ｃを塗布したＦＲＰ板の塗料塗布面には、全く付着物は認められかった。
防汚塗料Ｂを塗布したＦＲＰ板には、その塗料塗布面全面に若干の水垢，スライムが付着していた。
防汚塗料Ｄを塗布したＦＲＰ板には、その塗料塗布面下部にスライムが若干付着していたが、フジツボの付着は認められかった。
"When 35 days have passed since the start of the experiment"
Barnacles that had adhered to the FRP plate coated with the antifouling paint P4 had grown to a size of 5 mm, and algae had adhered to the entire surface of the FRP plate where the paint was applied.
The FRP plate coated with the antifouling paint P5 had 1 mm large barnacles attached to the entire surface of the paint application surface, and the algae had grown to 20 mm.
The slime adhered to the paint application surface of the FRP plate to which the antifouling paint P6 was applied, and the color of the paint was faded.
No deposits were observed on the coating surfaces of the FRP plate coated with the antifouling coating A and the FRP plate coated with the antifouling coating C.
On the FRP plate to which the antifouling paint B was applied, some scale and slime adhered to the entire surface of the paint application surface.
On the FRP plate to which the antifouling paint D was applied, some slime adhered to the lower part of the paint application surface, but no barnacles were observed.
「実験開始から43日経過時」
防汚塗料Ｐ４を塗布したＦＲＰ板には、塗料塗布面全面にフジツボ（5mm大）が付着し藻も全面に付着して、もとの防汚塗料の色が全く看取できなくなっていた。
防汚塗料Ｐ５を塗布したＦＲＰ板には、塗料塗布面全面にフジツボと藻が付着し、もとの防汚塗料の色がほとんど看取できなかった。
防汚塗料Ｐ６を塗布したＦＲＰ板の塗料塗布面には、フジツボは付着していなかったが、スライムが付着し、また全体に防汚塗料の色が褪せていた。
防汚塗料Ａ，Ｃ，およびＤを塗布した各ＦＲＰ板の塗料塗布面には、フジツボ，藻，スライムの付着は全く認められなかった。
防汚塗料Ｂを塗布したＦＲＰ板の塗料塗布面には、若干の水垢，スライムが付着していた。
"When 43 days have passed since the start of the experiment"
On the FRP plate coated with the antifouling paint P4, barnacles (5 mm in size) adhered to the entire paint application surface, and algae also adhered to the entire surface, making it impossible to observe the original antifouling paint color at all.
Barnacles and algae adhered to the entire coated surface of the FRP plate coated with the antifouling paint P5, and the color of the original antifouling paint could hardly be observed.
Barnacles did not adhere to the paint application surface of the FRP plate to which antifouling paint P6 was applied, but slime adhered, and the color of the antifouling paint faded out as a whole.
No adhesion of barnacles, algae and slime was observed on the coating surface of each FRP plate to which antifouling coatings A, C and D were applied.
Some scale and slime adhered to the coating surface of the FRP plate to which the antifouling coating B was applied.
「実験開始から50日経過時」
防汚塗料Ｐ４〜Ｐ６を塗布した各ＦＲＰ板の塗料塗布面は、いずれもフジツボが付着していたが、防汚塗料Ａ〜Ｄを塗布した各ＦＲＰ板の塗料塗布面は、若干の水垢，スライムが付着していたもののフジツボ，藻の付着は全く認められなかった。また、防汚塗料Ａ〜Ｄを塗布した各ＦＲＰ板の塗料塗布面は、防汚塗料Ｐ６を塗布したもののような塗料自体の色褪せも認められなかった。
このときの各ＦＲＰ板の塗料塗布面の状態を図２の写真に示す。
"When 50 days have passed since the start of the experiment"
Barnacles were attached to the coating surfaces of the FRP plates to which the antifouling paints P4 to P6 were applied, but the coating surfaces of the FRP plates to which the antifouling paints A to D were applied were slightly stained. Although the slime had adhered, barnacles and algae did not adhere at all. Further, the fading of the coating itself of the FRP plate to which the antifouling paints A to D were applied, such as that applied with the antifouling paint P6, was not recognized.
The state of the coating surface of each FRP plate at this time is shown in the photograph of FIG.
なお、上記各ＦＲＰ板の塗料塗布面の反対面には塗料を塗布しなかったので、いずれのものも実験開始より14日を経過した頃からフジツボが付着しはじめ、30日経過時にはその全面に付着していた。 In addition, since no paint was applied to the surface opposite to the paint application surface of each of the FRP plates, barnacles began to attach from the start of the experiment on the 14th day, and on the entire surface after 30 days. It was attached.
この実験により、従来市販の各種の防汚塗料に本発明防汚塗料用添加剤を添加することで、当該防汚塗料の効果の持続期間を延長できることが確認された。 From this experiment, it was confirmed that the duration of the effect of the antifouling paint can be extended by adding the antifouling paint additive of the present invention to various commercially available antifouling paints.
＜防汚塗料の性能評価実験２＞
２トンのＦＲＰ製つり船の船底に付着した貝類、藻類を除去して、この船底を水洗いした後乾燥させた。
そして、経過観察の便宜のために、その船底を図３に示したブロック１〜６の６つのブロックに分けるとともに、そのブロック１〜３には防汚塗料Ａを、刷毛とローラーを用いて１ｍ２あたり180〜185g、ウェット膜厚80μｍ（ドライ膜厚40μｍ）にして１回塗りで塗布した。
また、ブロック４〜６には防汚塗料Ｂを同じくウェット膜厚80μｍ（ドライ膜厚40μｍ）にして１回塗りで塗布し、４時間乾燥させた。
その後、船体を着水させ船着き場に長期係留し経過を観察した。
なお、ここで使用した防汚塗料Ａ，Ｂは、上記の通り焼成珪藻土粉とベントナイト粉を配合しているもので、防汚塗料Ａは油性の、防汚塗料Ｂは水性のものである。
<Performance evaluation experiment 2 of antifouling paint>
Shells and algae attached to the bottom of the 2-ton FRP fishing boat were removed, and the bottom was washed with water and dried.
For the convenience of follow-up, the bottom of the ship is divided into six blocks 1 to 6 shown in FIG. 3, and antifouling paint A is applied to blocks 1 to 3 using a brush and a roller. 180 to 185 g per 2 and a wet film thickness of 80 μm (dry film thickness of 40 μm) were applied by a single coating.
Further, the antifouling paint B was similarly applied to the blocks 4 to 6 with a wet film thickness of 80 μm (dry film thickness of 40 μm) and dried for 4 hours.
After that, the hull was landed and moored at the dock for a long time, and the progress was observed.
The antifouling paints A and B used here are a mixture of calcined diatomaceous earth powder and bentonite powder as described above. The antifouling paint A is oily and the antifouling paint B is aqueous.
「実験開始から６ヶ月経過時」
ブロック１〜３には、水垢が付着していたが、貝類，藻類の付着は認められなかった。
ブロック４〜６にはも、ヌルヌルした水垢が付着していたが、貝類，藻類の付着は認められなかった。
“When 6 months have passed since the start of the experiment”
Scales were attached to blocks 1 to 3, but shellfish and algae were not observed.
Blocks 4 to 6 also had a slimy scale adhering thereto, but no shellfish or algae were observed.
「実験開始から12ヶ月経過時」
ブロック１〜３には、長期係留による水垢が付着していたが、貝類，藻類の付着は認められなかった。
ブロック４〜６についても、実験開始から６ヶ月経過時と同様、水垢の付着はあったが、貝類，藻類の付着は認められなかった。
“When 12 months have passed since the start of the experiment”
Blocks 1 to 3 were contaminated with scales due to long-term mooring, but no shellfish or algae were observed.
In blocks 4 to 6, as in the case of 6 months from the start of the experiment, scales adhered, but shellfish and algae did not adhere.
「実験開始から18ヶ月経過時」
ブロック１〜３については、ブロック１の船首側舳部は波の影響で水垢が黒ずんでいたが、その他の部位には貝類，藻類の付着は認められなかった。
また、ブロック６の船尾寄りの部分には、１〜1.5mm大のフジツボが32〜35個付着していた。
“When 18 months have passed since the start of the experiment”
As for blocks 1 to 3, the bow side of block 1 was darkened due to waves, but shellfish and algae were not observed on other parts.
Further, 32 to 35 barnacles having a size of 1 to 1.5 mm were attached to the stern portion of the block 6.
「実験開始から24ヶ月経過時」
ブロック３の船尾部ヘリに、１mm以下のフジツボが２個付着していた。
ブロック４の船首寄りの部分以外の部分およびブロック５，６の全面に５mm大の成長したフジツボが重なり合って付着していた。
"When 24 months have passed since the start of the experiment"
Two barnacles of 1 mm or less were attached to the stern helicopter of Block 3.
Grown barnacles with a size of 5 mm overlapped and adhered to portions other than the portion near the bow of block 4 and the entire surfaces of blocks 5 and 6.
このように、防汚塗料Ａを塗布したブロック１〜３には、長期間の係留であっても少なくとも18ヶ月もの長期間、水垢の付着はあっても貝類（フジツボ）の付着はほとんど見られなかった。
ちなみに、実験開始から28ヶ月経過後には、ブロック３の船尾側から、２mm大のフジツボ貝が付着し始めた。
In this way, the blocks 1 to 3 coated with the antifouling paint A are almost free of shellfish (barnacles) even though they are moored for a long period of at least 18 months. There wasn't.
By the way, after 28 months from the start of the experiment, barnacles 2mm in size began to attach from the stern side of Block 3.
防汚塗料Ｂを塗布したブロック４〜６にも、少なくとも15ヶ月程度は貝類の付着が認められなかったが、18ヶ月経過後には塗料の剥離に伴ってフジツボの付着が始まった。 The adhesion of shellfish to the blocks 4 to 6 to which the antifouling paint B was applied was not observed for at least about 15 months, but after 18 months, the attachment of barnacles began with the peeling of the paint.
従来の防汚塗料は、これを単体でそのまま船底に塗布した場合、早くて３ヶ月、遅くとも６ヶ月程度でフジツボ等が付着してしまっており、通常６ヶ月程度ごとに付着したフジツボ等を除去して防汚塗料を塗り直す必要が生じていたが、これに対して、従来の防汚塗料に本発明防汚塗料用添加剤を添加すると、１回塗りであっても少なくとも１年は水棲生物付着抑制の効果が維持される。
したがって、船底に付着した水棲生物の除去作業および再度の防汚塗料の塗布作業を行う頻度を減らすことができ、その作業費用の節減と作業労力の低減を図ることができる。
When the conventional antifouling paint is applied to the bottom of the ship as it is, barnacles etc. have adhered to it in about 3 months at the earliest and about 6 months at the latest. However, if the antifouling paint additive of the present invention is added to the conventional antifouling paint, it is necessary to repaint the antifouling paint for at least one year even if it is applied once. The effect of suppressing biofouling is maintained.
Therefore, it is possible to reduce the frequency of removing the aquatic organisms adhering to the ship bottom and applying the antifouling paint again, thereby reducing the work cost and the work labor.
＜防汚塗料の性能評価実験３＞
３トンのＦＲＰ製つり船の船底に付着した貝類、藻類を除去し、その船底を水洗いした後乾燥させ全面に防汚塗料Ｃを塗布し６時間乾燥させた。
その後、船体を海上に着水させて週３日ないし５日運行しその経過を観察した。
なお、ここで使用した防汚塗料Ｃは、上記の通り非焼成珪藻土粉とフライアッシュ粉を配合しているものである。
<Performance evaluation experiment 3 of antifouling paint>
Shells and algae attached to the bottom of a 3-ton FRP fishing boat were removed, the bottom of the boat was washed with water, dried, and antifouling paint C was applied to the entire surface and dried for 6 hours.
After that, the hull landed on the sea and operated three to five days a week and observed the progress.
In addition, the antifouling paint C used here mix | blends non-baking diatomaceous earth powder and fly ash powder as above-mentioned.
「実験開始から６ヶ月経過時」
船体をクレーンで吊り上げて船底の状態を検証したが、貝類，藻類とも付着は認められなかった。
“When 6 months have passed since the start of the experiment”
The state of the bottom of the ship was verified by lifting the hull with a crane, but no shells or algae were found attached.
「実験開始から12ヶ月経過時」
再び船体をクレーンで吊り上げて船底の状態を検証したが、貝類，藻類等、水棲生物の付着は全く認められなかった。
ただし、防汚塗料Ｃを塗布しなかったスクリュー回転羽の固定部には５〜８mm大のフジツボが多数、びっしりと付着していた。
“When 12 months have passed since the start of the experiment”
The hull was lifted again with a crane and the condition of the bottom of the ship was verified, but no attachment of aquatic organisms such as shellfish and algae was observed.
However, a large number of barnacles having a size of 5 to 8 mm were firmly attached to the fixed part of the screw rotating blades to which the antifouling paint C was not applied.
「実験開始から16ヶ月経過時」
船底への貝類，藻類の付着は依然として認められなかった。ただし、エンジン固定部の金属部分の、防汚塗料Ｃを塗布しなかった部位にはフジツボが隙間無く付着していた。
"When 16 months have passed since the start of the experiment"
There was still no shellfish or algae attached to the bottom of the ship. However, barnacles adhered to the portions of the metal portion of the engine fixing portion where the antifouling paint C was not applied without any gaps.
上記の各性能評価実験より明らかなとおり、本発明防汚塗料用添加剤を添加した防汚塗料を船舶の船底に塗布すれば、水棲生物の付着抑制効果の持続期間を、防汚塗料を単体でそのまま塗布した場合に比べて大幅に延長することができる。
これは、本発明防汚塗料用添加剤に配合されている珪藻土粉が多孔質で吸放熱特性に優れたものであり、船底にたまった熱を効率的に吸収して放出することにより、当該防汚塗料に接触する海水温度の上昇を抑制する、という温度コントロールの作用を有するからであると考えられる。
As is clear from each performance evaluation experiment described above, if the antifouling paint added with the antifouling paint additive of the present invention is applied to the bottom of the ship, the duration of the aquatic organism adhesion control effect is reduced. It can be extended significantly compared with the case where it is applied as it is.
This is because the diatomaceous earth powder blended in the antifouling paint additive of the present invention is porous and has excellent heat absorption and heat dissipation characteristics, and efficiently absorbs and releases heat accumulated in the ship bottom, This is considered to be due to the temperature control action of suppressing the rise in seawater temperature in contact with the antifouling paint.
したがって、海水温度上昇の影響により水棲生物の付着抑制効果の持続期間が短縮されてしまう従来の防汚塗料も、本発明防汚塗料用添加剤を添加することで、その効果の持続期間を簡単にしかも大幅に延長することができる。 Therefore, conventional antifouling paints that reduce the duration of the aquatic organism adhesion control effect due to the rise in seawater temperature can be easily reduced by adding the antifouling paint additive of the present invention. Moreover, it can be extended significantly.
また、船舶の船底だけでなく、海上ブイ，航行安全浮標識，防波用テトラポット（登録商標），護岸壁，養殖用構造，海洋資源掘削基礎等、鋼板，セメント，コンクリート等製の各種の構造物の没水部表面に、本発明防汚塗料用添加剤を添加した防汚塗料を塗布すれば、その塗布した部分の水棲生物の付着を長期にわたって抑制できる。 In addition to the bottom of the ship, various types of products such as marine buoys, navigational safety floating signs, wave protection tetrapots (registered trademark), revetment walls, aquaculture structures, marine resource drilling foundations, steel plates, cement, concrete, etc. If the antifouling paint to which the additive for antifouling paint of the present invention is applied is applied to the surface of the submerged part of the structure, adhesion of aquatic organisms at the applied part can be suppressed over a long period of time.
そのほか、本発明防汚塗料用添加剤を添加した防汚塗料を、入江や湾に据え付けられる防波用テトラポット（登録商標）や護岸壁等のコンクリート構造物の没水部表面に塗布すれば、コンクリートから溶出するアルカリ成分の水中への溶解を抑制することもできる。 In addition, if the antifouling paint to which the additive for antifouling paint of the present invention is added is applied to the surface of a submerged part of a concrete structure such as a tetrapod for wave prevention (registered trademark) installed in a bay or a bay, It is also possible to suppress dissolution of alkaline components eluted from concrete into water.
ａ，ｂ 防汚塗料用添加剤
Ａ，Ｂ，Ｃ，Ｄ 防汚塗料用添加剤を添加した防汚塗料
Ｐ１〜Ｐ６ 従来の防汚塗料
a, b Antifouling paint additive A, B, C, D Antifouling paint P1 to P6 with antifouling paint additive Conventional antifouling paint
Claims (9)
40 to 70% by weight of unfired diatomaceous earth powder and 20 to 40% by weight of fly ash powder, 5 to 10% by weight of mineral spirits are added as solvent, and 3 to 7% by weight of sorbitan monooleate and 3 to An additive for antifouling paints, characterized in that 7% by weight of sorbitan ester is added as a dispersant and mixed to form a colloid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005115534A JP2006291085A (en) | 2005-04-13 | 2005-04-13 | Additive for anti-fouling coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005115534A JP2006291085A (en) | 2005-04-13 | 2005-04-13 | Additive for anti-fouling coating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2006291085A true JP2006291085A (en) | 2006-10-26 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2005115534A Pending JP2006291085A (en) | 2005-04-13 | 2005-04-13 | Additive for anti-fouling coating |
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| JP (1) | JP2006291085A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007088976A1 (en) | 2006-02-03 | 2007-08-09 | Fujikura Ltd. | Light beam path monitoring device and light beam path monitoring method |
| CN102653637A (en) * | 2011-03-02 | 2012-09-05 | 中国矿业大学(北京) | Method for improving expansion character of bentonite in brine |
| US20150376061A1 (en) * | 2014-06-25 | 2015-12-31 | CR Minerals Company, LLC | Pozzolanic compositions containing fly ash and remediation agents for use in cementitious materials |
| JP2019044044A (en) * | 2017-08-31 | 2019-03-22 | 合同会社大丸 | Ship bottom antifouling coating |
| US10457601B2 (en) | 2017-02-24 | 2019-10-29 | CR Minerals Company, LLC | Settable compositions comprising remediated fly ash (RFA) and methods of cementing in subterranean formations |
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2005
- 2005-04-13 JP JP2005115534A patent/JP2006291085A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007088976A1 (en) | 2006-02-03 | 2007-08-09 | Fujikura Ltd. | Light beam path monitoring device and light beam path monitoring method |
| CN102653637A (en) * | 2011-03-02 | 2012-09-05 | 中国矿业大学(北京) | Method for improving expansion character of bentonite in brine |
| CN102653637B (en) * | 2011-03-02 | 2013-11-20 | 中国矿业大学(北京) | Method for improving expansion character of bentonite in brine |
| US11299424B2 (en) | 2014-06-25 | 2022-04-12 | CR Minerals Company, LLC | Pozzolanic compositions containing fly ash and remediation agents for use in cementitious materials |
| US20150376061A1 (en) * | 2014-06-25 | 2015-12-31 | CR Minerals Company, LLC | Pozzolanic compositions containing fly ash and remediation agents for use in cementitious materials |
| US9561983B2 (en) * | 2014-06-25 | 2017-02-07 | CR Minerals Company, LLC | Pozzolanic compositions containing fly ash and remediation agents for use in cementitious materials |
| US10017418B2 (en) | 2014-06-25 | 2018-07-10 | CR Minerals Company, LLC | Pozzolanic compositions containing fly ash and remediation agents for use in cementitious materials |
| US11773018B2 (en) | 2014-06-25 | 2023-10-03 | CR Minerals Company, LLC | Pozzolanic compositions containing coal ash and remediation agents for use in cementitious materials |
| US10370295B2 (en) | 2014-06-25 | 2019-08-06 | CR Minerals Company, LLC | Pozzolanic compositions containing fly ash and remediation agents for use in cementitious materials |
| US10377667B2 (en) | 2014-06-25 | 2019-08-13 | CR Minerals Company, LLC | Pozzolanic compositions containing fly ash and remediation agents for use in cementitious materials |
| US10689292B2 (en) | 2014-06-25 | 2020-06-23 | CR Minerals Company, LLC | Pozzolanic compositions containing fly ash and remediation agents for use in cementitious materials |
| US10457601B2 (en) | 2017-02-24 | 2019-10-29 | CR Minerals Company, LLC | Settable compositions comprising remediated fly ash (RFA) and methods of cementing in subterranean formations |
| US10829414B2 (en) | 2017-02-24 | 2020-11-10 | CR Minerals Company, LLC | Settable compositions comprising remediated fly ash (RFA) and methods of cementing in subterranean formations |
| JP2019044044A (en) * | 2017-08-31 | 2019-03-22 | 合同会社大丸 | Ship bottom antifouling coating |
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