JP5063991B2 - W/oエマルション型難燃性油圧作動油 - Google Patents
W/oエマルション型難燃性油圧作動油 Download PDFInfo
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- JP5063991B2 JP5063991B2 JP2006311627A JP2006311627A JP5063991B2 JP 5063991 B2 JP5063991 B2 JP 5063991B2 JP 2006311627 A JP2006311627 A JP 2006311627A JP 2006311627 A JP2006311627 A JP 2006311627A JP 5063991 B2 JP5063991 B2 JP 5063991B2
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[式中、Rは、それぞれ独立して炭素数1〜10の炭化水素基である]で表わされる化合物が0.01〜10質量%添加され、前記界面活性剤の添加量が、前記基油に対して0.5〜20質量%の範囲であることを特徴とする。
本発明のW/Oエマルション型難燃性油圧作動油において、前記一般式(1)で表される化合物はRがメチル基であることが好ましい。
a)基油:動粘度(40℃)が20mm2/s、粘度指数が105、流動点が−15℃のパラフィン系鉱油。
b)水:精製水
c)添加剤:
i)抗菌剤A:4,4−ジメチル−オキサゾリジン
抗菌剤B:モルホリン誘導体[ニトロブチルモルホリン]
抗菌剤C:トリアジン系化合物
ii)アルカリ維持剤:トリエタノールアミン
iii)乳化剤:Caスルフォネート系ほか
iv)摩耗防止剤:ZnDTP
v)腐食防止剤:チアジアゾール
100mlのガラス製密閉容器に試料を50ml入れ、80℃で6日間静置した。次に、静置後の試料中の抗菌剤残存率を液体クロマトグラフィー法にて定量した。
試験a)の80℃,6日間静置した試料にバクテリア(シュードモナス,106個/ml)を10ml接種し,38℃で1日静置した。静置後の試料を簡易バクテリア定量キット(バイオチェッカー)に塗布し、38℃で2日間静置し、バクテリアの定量を行い、抗菌性の有無を評価した。
内径6mm、長さ200mmの純銅製細管に、流量20L/min、油温60℃で、試料を500hr循環させ、試験前後の重量変化より、単位面積当りの銅腐食量を測定した。
摩耗痕(mm)の計測
エマルション100mlにおける水−油分離量(ml)
Claims (5)
- 界面活性剤を用いて基油に水を分散させたW/Oエマルション型難燃性油圧作動油において、下記一般式(1):
[式中、Rは、それぞれ独立して炭素数1〜10の炭化水素基である]で表わされる化合物を0.01〜10質量%添加し、前記界面活性剤の添加量が、前記基油に対して0.5〜20質量%の範囲であることを特徴とするW/Oエマルション型難燃性油圧作動油。 - 前記一般式(1)で表される化合物のRがメチル基であることを特徴とする請求項1に記載のW/Oエマルション型難燃性油圧作動油。
- 更に、前記水に対しトリエタノールアミンを0.2〜7質量%添加したことを特徴とする請求項1に記載のW/Oエマルション型難燃性油圧作動油。
- 前記基油は、40℃での動粘度が10〜100mm2/sであることを特徴とする請求項1に記載のW/Oエマルション型難燃性油圧作動油。
- 前記水が5〜60容積%分散していることを特徴とする請求項1に記載のW/Oエマルション型難燃性油圧作動油。
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JP2008127427A JP2008127427A (ja) | 2008-06-05 |
JP5063991B2 true JP5063991B2 (ja) | 2012-10-31 |
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US9738848B2 (en) | 2013-06-03 | 2017-08-22 | Adeka Corporation | Polyfunctional lubricant composition |
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DE2218417A1 (de) * | 1972-04-15 | 1973-10-25 | Henkel & Cie Gmbh | Verwendung substituierter oxazolidine als antimikrobielle wirkstoffe |
JPH07305084A (ja) * | 1994-05-13 | 1995-11-21 | Daido Kagaku Kogyo Kk | 水溶性高速切削油組成物 |
JP3919444B2 (ja) * | 2000-12-01 | 2007-05-23 | 株式会社ジャパンエナジー | W/oエマルション型難燃性油圧作動油 |
JP3919449B2 (ja) * | 2001-02-09 | 2007-05-23 | 株式会社ジャパンエナジー | W/oエマルション型難燃性油圧作動油 |
JP4236604B2 (ja) * | 2004-03-17 | 2009-03-11 | 株式会社ジャパンエナジー | W/oエマルション型難燃性油圧作動油 |
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