JP6452134B2 - 水生生物付着防止材 - Google Patents
水生生物付着防止材 Download PDFInfo
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- JP6452134B2 JP6452134B2 JP2016527894A JP2016527894A JP6452134B2 JP 6452134 B2 JP6452134 B2 JP 6452134B2 JP 2016527894 A JP2016527894 A JP 2016527894A JP 2016527894 A JP2016527894 A JP 2016527894A JP 6452134 B2 JP6452134 B2 JP 6452134B2
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- fiber
- aquatic
- aquatic organism
- organism adhesion
- fluororesin
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-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0051—Including fibers
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0051—Including fibers
- E02D2300/0053—Including fibers made from glass
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0051—Including fibers
- E02D2300/0064—Including fibers made from metal
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0051—Including fibers
- E02D2300/0068—Including fibers made from carbon
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Description
(イ)真空蒸着によって膜を形成することができる。
(ロ)30℃において水に対する接触角が141°±8°である。
橋梁、コンクリートブロック、消波ブロック、防波堤、パイプライン等の水中構築物;
水門門扉、海上タンク、浮き桟橋等の港湾施設;
海底掘削設備、海中通信ケーブル施設等の海底作業施設;
導水路、覆水管、水室、取水口、放水口等の火力、原子力、潮力、海洋温度差発電施設;
プール、水槽、給水塔、下水道、雨どい等の給排水および貯蔵施設;
システムキッチン、水洗便器、浴室、浴槽等の家庭内設備;
船舶の吃水部または船底、潜水艦の外装、スクリュー、プロペラ、錨等の船舶構造物または付属物;
水面または水中で使用する物品;
水上飛行機などのフロート材;
定置網等の魚網、ブイ、生簀、ロープ等の漁業用物品;
覆水器、水室等の火力、原子力、潮力、洋上風力、海洋温度差発電用物品;
海中(水中)ケーブル等の海底(水底)敷設物品;
移動型:
底引き網、はえなわ等の漁業用物品;
ポリテトラフルオロエチレン(PTFE)分散液(D−210C、固形分62.3%(ダイキン工業株式会社製、融点327℃、フッ素含有量76%)100.0重量部と、フッ化ピッチ(オグソールFP−S、大阪ガスケミカル株式会社製)1.25重量部を混合し、これらが均一に分散した混合液を得た。
上記製造例1で作製した混合液50重量部を、ポリアクリロニトル(PAN)を原料にした高性能炭素繊維からなる炭素繊維織布50重量部 T300(東レ株式会社製)に含浸させ風乾後、360℃で5分間加熱した。その後、320℃まで冷却して過冷却状態とし、電子線加速器を用いて、加速電圧250kV、加速電流1mA、150kGyの電子線を1分間照射して架橋処理を行い、シート状の水生生物付着防止材を得た。
実施例1において照射線量を500kGy(加速電圧250kV、加速電流1mA)とした以外は実施例1と同様にして、シート状の水生生物付着防止材を得た。
上記の実施例1および2で得られた水生生物付着防止材を用いて、下記の試験を行った。また、比較例として、市販のポリテトラフルオロエチレン(PTFE)シート(比較例1、ニチアス社製)および塩化ビニルシート(比較例2、住友ベークライト社製)を用いて同様の試験を行った。
上記の各シートについて、水の初期接触角を測定した。具体的には、初期静的接触角は、接触角測定装置を用いて、水2μLにて実施した。
海水循環式水槽内にメッシュ式試験容器と共に上記の各シートを垂下し、試験容器中に移入したフジツボ付着期幼生の試験品への付着状況を観察することによって、流水下における各種試験品の付着阻害効果を試験した。
具体的には、移入したフジツボ付着期幼生の個数(n0)に対する、試験品に付着したフジツボ付着期幼生の個数(n)の割合を算出することにより評価した。付着率は、下記式により算出した。
n/n0×100(%)
上記の各シートをステンレス製金属パネル基材にあてがい、ヒートガンで300℃に加熱し密着施工し、シートパネルを得た。その後、シートパネルをアンカーボルトを使用して水中構造物に取り付けて、水中に浸し、数日放置後に観察した。施工後のシートと基材パネルとの密着耐久性を目視にて以下により評価した。
〇・・・剥がれない
△・・・やや剥がれ
×・・・剥がれる
Claims (7)
- フッ素樹脂およびフッ化ピッチから形成される成形体である水生生物付着防止材。
- フッ素樹脂が、ポリテトラフルオロエチレンまたはテトラフルオロエチレン系共重合体である、請求項1に記載の水生生物付着防止材。
- フッ化ピッチの含有量が、フッ素樹脂100重量部に対して、0.05〜50重量部である、請求項1または2に記載の水生生物付着防止材。
- さらに、繊維材料を含んで成る、請求項1〜3のいずれかに記載の水生生物付着防止材。
- 繊維材料が、ポリテトラフルオロエチレン繊維、ガラス繊維、炭素繊維、炭化ケイ素繊維、窒化ケイ素繊維、アラミド繊維、ポリ−パラフェニレンベンゾビスオキサゾール繊維、および金属繊維からなる群から選択される1種または2種以上の繊維である、請求項4に記載の水生生物付着防止材。
- 基材と、該基材に密着した請求項1〜5のいずれかに記載の水生生物付着防止材を含む物品。
- 請求項1〜5のいずれかに記載の水生生物付着防止材または請求項6に記載の物品を有して成る、水中構造物。
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JP2014122670 | 2014-06-13 | ||
PCT/JP2015/067032 WO2015190597A1 (ja) | 2014-06-13 | 2015-06-12 | 水生生物付着防止材 |
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JP7347236B2 (ja) | 2020-01-24 | 2023-09-20 | 株式会社プロテリアル | 架橋フッ素樹脂及びその管理方法 |
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JP2969201B2 (ja) * | 1991-03-04 | 1999-11-02 | 大阪瓦斯株式会社 | 防汚塗料 |
JPH11189770A (ja) * | 1997-12-26 | 1999-07-13 | Osaka Gas Co Ltd | 撥水化処理剤、金属体の撥水化方法および撥水性金属体 |
JP3679043B2 (ja) * | 2001-10-12 | 2005-08-03 | 株式会社レイテック | 架橋フッ素樹脂複合材料およびその製造方法 |
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