JP2019143101A - Composite particle - Google Patents

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JP2019143101A
JP2019143101A JP2018031092A JP2018031092A JP2019143101A JP 2019143101 A JP2019143101 A JP 2019143101A JP 2018031092 A JP2018031092 A JP 2018031092A JP 2018031092 A JP2018031092 A JP 2018031092A JP 2019143101 A JP2019143101 A JP 2019143101A
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composite particle
general formula
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group
integer
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JP7123315B2 (en
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哲史 木島
Satoshi Kijima
哲史 木島
吉山 金海
Yoshiyama Kaneumi
吉山 金海
英夫 澤田
Hideo Sawada
英夫 澤田
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Unimatec Co Ltd
Hirosaki University NUC
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Unimatec Co Ltd
Hirosaki University NUC
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Abstract

To provide a composite particle that is effectively used for the recovery of water from a fluorine-containing surface treatment agent or an oil-water mixed liquid, and the like.SOLUTION: The composite particle comprises a fluoroether alcohol represented by the general formula HO-A-R-A-OH (in which Ris a group having a 6C or less linear or branched perfluoroalkylene group or polyfluoroalkylene group and an ether bond and A is a 1-6C alkylene group), a magnetic particle and a compound having at least one phosphonic acid moiety.SELECTED DRAWING: None

Description

本発明は、コンポジット粒子に関する。さらに詳しくは、含フッ素表面処理剤や油水混合液中からの水の回収等に有効に用いられるコンポジット粒子に関する。   The present invention relates to composite particles. More specifically, the present invention relates to composite particles that are effectively used for recovering water from a fluorine-containing surface treatment agent or an oil / water mixture.

基材表面に撥油性を付与するために、主としてフッ素化合物、特にパーフルオロアルキル基含有化合物の重合体を表面処理剤として用いる方法が知られているが、含フッ素化合物重合体は撥油性と同時に撥水性をも示し、親水化されていないため、基材表面に汚れだけが残る状態が生じることがあり、問題となっている。   In order to impart oil repellency to the substrate surface, a method is known in which a polymer of a fluorine compound, particularly a perfluoroalkyl group-containing compound, is used as a surface treatment agent. Since it also exhibits water repellency and is not hydrophilized, there may be a situation in which only dirt remains on the surface of the substrate, which is a problem.

このことから、水洗による自動洗浄を可能にする表面処理剤としては、撥油性と親水性とを併せ持つ撥油親水剤が必要とされ、すぐれた撥油親水剤であれば、防汚性能を示す表面処理剤としてだけではなく、濡れ性の向上により、水の速乾性や油水分離性なども期待できる。   For this reason, an oil repellent hydrophilic agent having both oil repellency and hydrophilicity is required as a surface treatment agent that enables automatic cleaning by water washing, and if it is an excellent oil repellent hydrophilic agent, it exhibits antifouling performance. Not only as a surface treating agent, but also by improving wettability, quick drying of water and oil / water separation can be expected.

また従来、油ガス田、化学プラント、ガソリンスタンド、飲食店から排出される油を含んだ汚染水を処理するため、比重分離、微生物処理、化学処理等で油と水の分離を行なっているが、これは処理時間、コストが掛かるなどの問題があることから、産業用から一般家庭までの分野では、油水混合液からの水の有効な回収が必要とされている。   Conventionally, oil and water are separated by specific gravity separation, microbial treatment, chemical treatment, etc. in order to treat contaminated water containing oil discharged from oil and gas fields, chemical plants, gas stations and restaurants. Since this involves problems such as processing time and cost, effective recovery of water from the oil / water mixture is required in the fields from industrial use to general households.

特開2008−38015号公報JP 2008-38015 A 米国特許第3,574,770号公報U.S. Pat. No. 3,574,770

本発明の目的は、含フッ素表面処理剤や油水混合液中からの水の回収等に有効に用いられるコンポジット粒子を提供することにある。   An object of the present invention is to provide composite particles that are effectively used for recovering water from a fluorine-containing surface treatment agent or an oil-water mixture.

かかる本発明の目的は、一般式
HO-A-RF-A-OH 〔I〕
(ここで、RFは炭素数6以下の直鎖状または分岐状のパーフルオロアルキレン基またはポリフルオロアルキレン基およびエーテル結合を有する基であり、Aは炭素数1〜6のアルキレン基である)で表されるフルオロエーテルアルコール、磁性粒子および少なくとも1個のホスホン酸部位を有する化合物よりなるコンポジット粒子によって達成される。
The object of the present invention is to provide a general formula
HO-AR F -A-OH (I)
(Wherein R F is a linear or branched perfluoroalkylene group or polyfluoroalkylene group having 6 or less carbon atoms and a group having an ether bond, and A is an alkylene group having 1 to 6 carbon atoms) It is achieved by a composite particle comprising a fluoroether alcohol represented by the formula (1), a magnetic particle and a compound having at least one phosphonic acid moiety.

本発明に係るコンポジット粒子は、これを有機溶媒に分散してガラス、金属等の基質の表面を処理することで、撥油親水性を有する薄膜を形成させることができる。すなわち、含フッ素表面処理剤として有効に用いられる。   The composite particles according to the present invention can be dispersed in an organic solvent and treated on the surface of a substrate such as glass or metal to form a thin film having oil-repellent hydrophilicity. That is, it is effectively used as a fluorine-containing surface treatment agent.

また、フルオロエーテルアルコール由来の撥油性に加えて、ホスホン酸部位を有する化合物を用いることにより親水性を得ることができ、マグネタイト微粒子等の磁性粒子を用いることで、コンポジット粒子に磁性を持たせることができる。   In addition to oil repellency derived from fluoroether alcohol, hydrophilicity can be obtained by using a compound having a phosphonic acid moiety, and magnetism can be imparted to composite particles by using magnetic particles such as magnetite fine particles. Can do.

このように、コンポジット粒子が撥油親水性および磁性を持つことにより、コンポジット粒子を水と油の混合液に溶かした状態において、磁石によってコンポジット粒子および水を引き寄せることで水と油とを分離することができ、油との混合液から水を回収することを可能とする。   In this way, the composite particles have oil-repellent hydrophilicity and magnetism, and in a state where the composite particles are dissolved in a mixed liquid of water and oil, the composite particles and water are separated by pulling the composite particles and water with a magnet. And makes it possible to recover water from the mixture with oil.

具体的には、油ガス田、化学プラント、ガソリンスタンド、飲食店から排出される油を含んだ汚染水等からの水分の有効な回収を有効にするという効果がもたらされる。   Specifically, an effect of enabling effective recovery of moisture from contaminated water containing oil discharged from an oil and gas field, a chemical plant, a gas station, or a restaurant is brought about.

本発明のコンポジット粒子は、フルオロエーテルアルコール、磁性粒子およびホスホン酸部位含有化合物からなる。   The composite particle of the present invention comprises fluoroether alcohol, magnetic particles and a phosphonic acid moiety-containing compound.

フルオロエーテルアルコールとしては、一般式
HO-A-RF-A-OH 〔I〕
RF:C6以下のパーフルオロアルキレン基およびエーテル結合を有し、具体的には
炭素数5〜160の直鎖状または分岐状のパーフルオロアルキレンエーテル基ま
たはそれのフッ素原子の一部が水素原子で置換されたポリフルオロアルキレ
ンエーテル基
A:C1〜C6のアルキレン基
で表される化合物で用いられる。
Fluoroether alcohols have the general formula
HO-AR F -A-OH (I)
R F : has a C 6 or less perfluoroalkylene group and an ether bond, specifically
A linear or branched perfluoroalkylene ether group having 5 to 160 carbon atoms.
Or a polyfluoroalkylene in which some of its fluorine atoms are replaced by hydrogen atoms.
Ether group
A: Used in a compound represented by a C 1 to C 6 alkylene group.

一般式〔I〕で表されるフルオロエーテルアルコールとしては、一般式
HO(CH2)aCmF2m(OCnF2n)bO(CF2)cO(CnF2nO)dCmF2m(CH2)aOH 〔II〕
a:1〜6
b+d:0〜50
c:1〜6
m:1〜2
n:1〜3
で表される化合物が挙げられる。
As the fluoroether alcohol represented by the general formula [I], the general formula
HO (CH 2 ) a C m F 2m (OC n F 2n ) b O (CF 2 ) c O (C n F 2n O) d C m F 2m (CH 2 ) a OH (II)
a: 1-6
b + d: 0 to 50
c: 1-6
m: 1-2
n: 1 to 3
The compound represented by these is mentioned.

一般式〔II〕で表されるフルオロエーテルアルコールとしては、例えば一般式
HO(CH2)aCF(CF3)〔OCF2CF(CF3)〕bO(CF2)cO〔CF(CF3)CF2O〕dCF(CF3)(CH2)aOH 〔III〕
a:1〜6、好ましくは1〜3、特に好ましくは1
b+d:0〜50、好ましくは1〜20
b+dの値に関しては、分布を有する混合物であってもよい
c:1〜6、好ましくは2〜4
で表される化合物等が用いられる。
As the fluoroether alcohol represented by the general formula [II], for example, the general formula
HO (CH 2 ) a CF (CF 3 ) [OCF 2 CF (CF 3 )] b O (CF 2 ) c O [CF (CF 3 ) CF 2 O] d CF (CF 3 ) (CH 2 ) a OH [III]
a: 1 to 6, preferably 1 to 3, particularly preferably 1
b + d: 0 to 50, preferably 1 to 20
For the value of b + d, it may be a mixture with distribution
c: 1-6, preferably 2-4
The compound etc. which are represented by these are used.

一般式〔III〕で表されるフルオロエーテルアルコールにおいて、a=1の化合物は特許文献1〜2に記載されており、次のような一連の工程を経て合成される。
FOCRfCOF → H3COOCRfCOOCH3 → HOCH2RfCH2OH
Rf:-CF(CF3)〔OCF2CF(CF3)〕bO(CF2)cO〔CF(CF3)CF2O〕dCF(CF3)-
In the fluoroether alcohol represented by the general formula [III], compounds with a = 1 are described in Patent Documents 1 and 2, and are synthesized through the following series of steps.
FOCR COF → H 3 COO CR COOCH 3 → HOCH 2 RfCH 2 OH
Rf: -CF (CF 3 ) [OCF 2 CF (CF 3 )] b O (CF 2 ) c O [CF (CF 3 ) CF 2 O] d CF (CF 3 )-

一般式〔I〕で表される、ポリフルオロアルキレンエーテル基を有するフルオロエーテルアルコールとしては、例えば一般式
HO(CH2CH2O)pCH2CF2(OCF2CF2)q(OCF2)rOCF2CH2(OCH2CH2)pOH 〔IV〕
p:0〜6、好ましくは1〜4
q+r:0〜50、好ましくは10〜40
で表される化合物等が用いられる。
Examples of the fluoroether alcohol having a polyfluoroalkylene ether group represented by the general formula [I] include, for example, the general formula
HO (CH 2 CH 2 O) p CH 2 CF 2 (OCF 2 CF 2 ) q (OCF 2 ) r OCF 2 CH 2 (OCH 2 CH 2 ) p OH (IV)
p: 0 to 6, preferably 1 to 4
q + r: 0-50, preferably 10-40
The compound etc. which are represented by these are used.

磁性粒子としては、例えばマグネタイト、フェライト、マグヘマイト、けい素鉄、パーマロイ、アモルファス金属等の微粒子、好ましくはマグネタイトのナノ粒子等が用いられる。   Examples of magnetic particles include fine particles such as magnetite, ferrite, maghemite, silicon iron, permalloy, and amorphous metal, preferably magnetite nanoparticles.

少なくとも1個のホスホン酸部位を有する化合物として、例えば
1-ヒドロキシエタン-1,1-ジホスホン酸〔HEDP〕

Figure 2019143101
2-ホスホノブタン-1,2,4-トリカルボン酸〔PBTC〕
Figure 2019143101
等が挙げられる。 As a compound having at least one phosphonic acid moiety, for example
1-hydroxyethane-1,1-diphosphonic acid [HEDP]
Figure 2019143101
2-phosphonobutane-1,2,4-tricarboxylic acid (PBTC)
Figure 2019143101
Etc.

これらのホスホン酸部位含有化合物は、フルオロエーテルアルコールに対する重量比で目的の撥油親水性を示す限り、1〜99重量%の範囲内で任意に設定されるが、好ましくはフルオロエーテルアルコール45〜80重量%に対して55〜20重量%の割合で用いられる。ホスホン酸部位含有化合物が用いられないと、後記比較例2の結果に示されるように、親水性が殆ど発揮されない。   These phosphonic acid moiety-containing compounds are arbitrarily set within the range of 1 to 99% by weight as long as they exhibit the desired oil-repellent hydrophilicity in a weight ratio with respect to the fluoroether alcohol, preferably 45 to 80 fluoroether alcohol. It is used at a ratio of 55 to 20% by weight with respect to weight%. If the phosphonic acid moiety-containing compound is not used, hydrophilicity is hardly exhibited as shown in the results of Comparative Example 2 described later.

磁性粒子は、フルオロエーテルアルコールとホスホン酸部位含有化合物との合計量に対し10〜90重量%の割合で用いられる。   The magnetic particles are used in a proportion of 10 to 90% by weight based on the total amount of the fluoroether alcohol and the phosphonic acid moiety-containing compound.

コンポジット粒子の調製は、フルオロエーテルアルコールおよび磁性粒子をテトラヒドロフラン中約40℃以下で約3〜5時間超音波攪拌した後、ホスホン酸部位含有化合物を加え、同様の条件下で超音波攪拌することにより行われる。   The composite particles were prepared by ultrasonically stirring fluoroetheralcohol and magnetic particles in tetrahydrofuran at about 40 ° C. or lower for about 3 to 5 hours, adding a phosphonic acid moiety-containing compound, and then ultrasonically stirring under the same conditions. Done.

溶媒を除去した粗生成物は、一晩テトラヒドロフラン中に分散させた後、磁石により生成物を沈殿させ、分離された生成物を数回テトラヒドロフランで洗浄し、溶媒除去後約50〜70℃で減圧乾燥することにより、生成物が取得される。   The crude product from which the solvent has been removed is dispersed in tetrahydrofuran overnight, and then the product is precipitated with a magnet. The separated product is washed several times with tetrahydrofuran, and after removing the solvent, the pressure is reduced to about 50 to 70 ° C. By drying, the product is obtained.

金属、ガラス等の無機質基材、合成樹脂、ゴム等の有機質基材への撥油親水性コンポジット粒子の適用は、例えばコンポジット粒子テトラヒドロフラン分散液中に任意の塗布手段、例えばディップコート、スプレーコート、刷毛塗り、ローラー塗布、スピンコート等の手段で行われる。   Application of oil-repellent hydrophilic composite particles to inorganic substrates such as metal and glass, synthetic resins, and organic substrates such as rubber can be performed by any coating means such as dip coating, spray coating, etc. in a composite particle tetrahydrofuran dispersion. It is performed by means such as brush coating, roller coating, spin coating and the like.

コンポジット粒子のテトラヒドロフラン分散液を用いて基材表面にこれを適用し、撥油親水性を発現せしめるためには、室温条件下で乾燥させた後、約100〜200℃、好ましくは約120〜150℃で焼成せしめることが望ましく、その焼成時間は約1〜24時間である。   In order to apply this to a substrate surface using a tetrahydrofuran dispersion of composite particles to develop oil repellency and hydrophilicity, after drying at room temperature, the temperature is about 100 to 200 ° C., preferably about 120 to 150. It is desirable to bake at a temperature of about 1 to 24 hours.

本発明のコンポジット粒子は、撥油性と親水性とを併せ持つ撥油親水剤として有効である。すぐれた撥油親水性を有する表面処理剤は、水洗による自動洗浄を可能とするばかりではなく、防汚性能や濡れ性の向上により、水の速乾性用途や油水の分離用途にも有効に用いることもできる。   The composite particles of the present invention are effective as an oil repellent hydrophilic agent having both oil repellency and hydrophilicity. A surface treatment agent with excellent oil repellency and hydrophilicity not only enables automatic washing by washing with water, but also effectively uses it for quick drying of water and separation of oil and water by improving antifouling performance and wettability. You can also.

また、このコンポジット粒子は、撥油親水性および磁性を持つことにより、コンポジット粒子を水と油の混合液に分散させた状態において、磁石によってコンポジット粒子および水を引き寄せることで水と油とを分離することができ、油との混合液から水を回収することを可能とする。   In addition, this composite particle has oil-repellent hydrophilicity and magnetism, so that when the composite particle is dispersed in a mixture of water and oil, the composite particle and water are separated by a magnet to separate water and oil. And makes it possible to recover water from the mixture with oil.

次に、実施例について本発明を説明する。   Next, the present invention will be described with reference to examples.

実施例1
容量13.5mlの反応容器に、フルオロエーテルアルコール〔OXF9PO-OH (b+d=7)〕
HO(CH2)CF(CF3)〔OCF2CF(CF3)〕bO(CF2)2O〔CF(CF3)CF2O〕dCF(CF3)(CH2)OH
100mg、マグネタイトナノ粒子(戸田工業製品、平均粒径10nm)100mgおよびテトラヒドロフラン5mlを仕込み、30℃以下で3時間超音波攪拌した。その後、1-ヒドロキシエタン-1,1-ジホスホン酸〔HEDP〕(60重量%水溶液)を純分として30mgを加え、さらに3時間超音波攪拌した。
Example 1
Fluoroether alcohol (OXF9PO-OH (b + d = 7)) in a reaction vessel with a capacity of 13.5 ml
HO (CH 2 ) CF (CF 3 ) [OCF 2 CF (CF 3 )] b O (CF 2 ) 2 O [CF (CF 3 ) CF 2 O] d CF (CF 3 ) (CH 2 ) OH
100 mg, 100 mg of magnetite nanoparticles (Toda Kogyo Co., Ltd., average particle size 10 nm) and 5 ml of tetrahydrofuran were charged, and ultrasonically stirred at 30 ° C. or lower for 3 hours. Thereafter, 30 mg of pure 1-hydroxyethane-1,1-diphosphonic acid [HEDP] (60 wt% aqueous solution) was added, and the mixture was further ultrasonically stirred for 3 hours.

超音波攪拌後、85℃、減圧条件下で溶媒を除去し、粗生成物を新たなテトラヒドロフラン中に一夜分散させた。その後、磁石で生成物を沈殿させ、分離された生成物をテトラヒドロフランで数回洗浄した。溶媒除去後に、50℃で減圧乾燥させることにより、目的とするコンポジット粒子を得た。   After ultrasonic stirring, the solvent was removed under reduced pressure at 85 ° C., and the crude product was dispersed in fresh tetrahydrofuran overnight. Thereafter, the product was precipitated with a magnet, and the separated product was washed several times with tetrahydrofuran. After removal of the solvent, the desired composite particles were obtained by drying under reduced pressure at 50 ° C.

実施例2
実施例1において、HEDP量が90mgに変更された。
Example 2
In Example 1, the HEDP amount was changed to 90 mg.

実施例3
実施例1において、HEDP量が120mgに変更された。
Example 3
In Example 1, the HEDP amount was changed to 120 mg.

実施例4
実施例1において、HEDPの代わりに、2-ホスホノブタン-1,2,4-トリカルボン酸〔PBTC〕(50重量%水溶液)が25mg用いられた。
Example 4
In Example 1, 25 mg of 2-phosphonobutane-1,2,4-tricarboxylic acid [PBTC] (50% by weight aqueous solution) was used instead of HEDP.

実施例5
実施例1において、HEDPの代わりに、2-ホスホノブタン-1,2,4-トリカルボン酸〔PBTC〕(50重量%水溶液)が50mg用いられた。
Example 5
In Example 1, 50 mg of 2-phosphonobutane-1,2,4-tricarboxylic acid [PBTC] (50 wt% aqueous solution) was used in place of HEDP.

実施例6
実施例1において、HEDPの代わりに、2-ホスホノブタン-1,2,4-トリカルボン酸〔PBTC〕(50重量%水溶液)が75mg用いられた。
Example 6
In Example 1, instead of HEDP, 75 mg of 2-phosphonobutane-1,2,4-tricarboxylic acid [PBTC] (50 wt% aqueous solution) was used.

実施例7
実施例1において、HEDPの代わりに、2-ホスホノブタン-1,2,4-トリカルボン酸〔PBTC〕(50重量%水溶液)が100mg用いられた。
Example 7
In Example 1, 100 mg of 2-phosphonobutane-1,2,4-tricarboxylic acid [PBTC] (50% by weight aqueous solution) was used instead of HEDP.

比較例1
カバーガラス自体の接触角が測定された。
Comparative Example 1
The contact angle of the cover glass itself was measured.

比較例2
実施例1において、HEDPが用いられなかった。
Comparative Example 2
In Example 1, HEDP was not used.

比較例3
実施例3において、OXF9PO-OHが用いられなかった。
Comparative Example 3
In Example 3, OXF9PO-OH was not used.

比較例4
実施例7において、OXF9PO-OHが用いられなかった。
Comparative Example 4
In Example 7, OXF9PO-OH was not used.

以上の各実施例および比較例で得られたコンポジット粒子のテトラヒドロフラン分散液について、次のようにして液滴の接触角(単位:°)の測定が行われた。   With respect to the tetrahydrofuran dispersion of the composite particles obtained in the above Examples and Comparative Examples, the contact angle (unit: °) of the droplets was measured as follows.

乾燥して得られたコンポジット粒子の全量を5mlのテトラヒドロフラン中に加え、超音波照射して5時間分散させ、コンポジット粒子のテトラヒドロフラン分散液を得た。このコンポジット粒子分散液をマイクロピペットで0.30ml取り、これをカバーガラス(松浪ガラス工業製品硼ケイ酸ガラス;18×18mm)に滴下し、室温下で溶媒を蒸発させた後、真空下で一日乾燥させた。得られた改質基材に、n-ドデカンまたは水の液滴4μlを静かに接触させ、付着した液滴の接触角をθ/2法により、接触角計(協和界面化学製Drop Master 300)を用いて経時的な測定を行った。   The total amount of the composite particles obtained by drying was added to 5 ml of tetrahydrofuran and dispersed by sonication for 5 hours to obtain a tetrahydrofuran dispersion of composite particles. Take 0.30 ml of this composite particle dispersion with a micropipette, drop it onto a cover glass (Matsunami Glass Industrial Products Borosilicate Glass; 18 × 18 mm), evaporate the solvent at room temperature, and then under vacuum for one day. Dried. Gently contact 4 μl of n-dodecane or water droplets on the resulting modified substrate, and contact angle meter (Drop Master 300 manufactured by Kyowa Interface Chemical) using the θ / 2 method for the contact angle of the adhered droplets. Was used to measure over time.

得られた結果は、次の表1に示される。
表1
n-ドデカン
0分 5分 0分 5分 10分 15分 20分 25分 30分
実施例1 59 56 70 0 0 0 0 0 0
〃 2 29 29 12 0 0 0 0 0 0
〃 3 74 66 11 0 0 0 0 0 0
〃 4 22 17 10 0 0 0 0 0 0
〃 5 24 20 9 0 0 0 0 0 0
〃 6 33 26 37 0 0 0 0 0 0
〃 7 26 22 11 0 0 0 0 0 0
比較例1 0 0 54 42 35 24 20 20 20
〃 2 65 54 138 114 110 107 105 98 96
〃 3 0 0 0 0 0 0 0 0 0
〃 4 3 0 25 13 8 0 0 0 0
The results obtained are shown in the following Table 1.
Table 1
n-dodecane water
Example 0 min 5 min 0 min 5 min 10 min 15 min 20 min 25 min 30 min Example 1 59 56 70 0 0 0 0 0 0
〃 2 29 29 12 0 0 0 0 0 0
3 3 74 66 11 0 0 0 0 0 0
4 4 22 17 10 0 0 0 0 0 0
5 5 24 20 9 0 0 0 0 0 0
〃 6 33 26 37 0 0 0 0 0 0 0
7 7 26 22 11 0 0 0 0 0 0
Comparative Example 1 0 0 54 42 35 24 20 20 20
〃 2 65 54 138 114 110 107 105 98 96
3 3 0 0 0 0 0 0 0 0 0
〃 4 3 0 25 13 8 0 0 0 0

実施例8
実施例3で得られたコンポジット粒子を用いて、磁石による油中の水分の回収についての評価を行った。
容量9mlのスクリュー管にn-ドデカン2mlおよび青色に着色した水0.1mlを加えて混合溶液を調製し、この溶液中にコンポジット粒子10mgを加えて10秒間攪拌させた。その後、スクリュー管の側面から磁石を近づけ、そのままスクリュー管を傾けてn-ドデカンを空のスクリュー管にデカンテーションした。デカンテーションしたn-ドデカン中の水を目視で確認し、全くない場合は○、少量ある場合は△、多量ある場合は×と評価した。
Example 8
The composite particles obtained in Example 3 were used to evaluate the recovery of moisture in oil using a magnet.
A mixed solution was prepared by adding 2 ml of n-dodecane and 0.1 ml of blue-colored water to a screw tube having a volume of 9 ml, and 10 mg of composite particles were added to this solution and stirred for 10 seconds. Then, the magnet was brought close to the side of the screw tube, and the screw tube was tilted as it was, and n-dodecane was decanted into an empty screw tube. The water in the decanted n-dodecane was visually confirmed and evaluated as ◯ when there was no water, Δ when there was a small amount, and × when there was a large amount.

比較例5
実施例8において、実施例3で得られたコンポジット粒子の代わりに、同量の比較例3で得られたコンポジット粒子が用いられた。
Comparative Example 5
In Example 8, instead of the composite particles obtained in Example 3, the same amount of composite particles obtained in Comparative Example 3 was used.

比較例6
実施例8において、実施例3で得られたコンポジット粒子の代わりに、同量のマグネタイトナノ粒子が用いられた。
Comparative Example 6
In Example 8, the same amount of magnetite nanoparticles was used instead of the composite particles obtained in Example 3.

以上の実施例および各比較例における評価は、次の表2に示される。
表2
コンポジット粒子 評価結果
実施例8 実施例3 ○
比較例5 比較例3 △
〃 6 Fe3O4 ×
The evaluation in the above Examples and Comparative Examples is shown in the following Table 2.
Table 2
Example: Composite particle evaluation results
Example 8 Example 3 ○
Comparative Example 5 Comparative Example 3
6 6 Fe 3 O 4 ×

Claims (9)

一般式
HO-A-RF-A-OH 〔I〕
(ここで、RFは炭素数6以下の直鎖状または分岐状のパーフルオロアルキレン基またはポリフルオロアルキレン基およびエーテル結合を有する基であり、Aは炭素数1〜6のアルキレン基である)で表されるフルオロエーテルアルコール、磁性粒子および少なくとも1個のホスホン酸部位を有する化合物よりなるコンポジット粒子。
General formula
HO-AR F -A-OH (I)
(Wherein R F is a linear or branched perfluoroalkylene group or polyfluoroalkylene group having 6 or less carbon atoms and a group having an ether bond, and A is an alkylene group having 1 to 6 carbon atoms) A composite particle comprising a fluoroetheralcohol represented by formula (1), a magnetic particle and a compound having at least one phosphonic acid moiety.
一般式〔I〕で表されるフルオロエーテルアルコールが、一般式
HO(CH2)aCmF2m(OCnF2n)bO(CF2)cO(CnF2nO)dCmF2m(CH2)aOH 〔II〕
(ここで、aは1〜6の整数、cは1〜6の整数であり、b+dは0〜50の整数であり、mは1または2であり、nは1、2または3である)で表される化合物である請求項1記載のコンポジット粒子。
The fluoroether alcohol represented by the general formula [I] is represented by the general formula
HO (CH 2 ) a C m F 2m (OC n F 2n ) b O (CF 2 ) c O (C n F 2n O) d C m F 2m (CH 2 ) a OH (II)
(Where a is an integer from 1 to 6, c is an integer from 1 to 6, b + d is an integer from 0 to 50, m is 1 or 2, and n is 1, 2 or 3. The composite particle according to claim 1, which is a compound represented by the formula:
一般式〔II〕で表されるフルオロエーテルアルコールが、一般式
HO(CH2)aCF(CF3)〔OCF2CF(CF3)〕bO(CF2)cO〔CF(CF3)CF2O〕dCF(CF3)(CH2)aOH
〔III〕
(ここで、aは1〜6の整数であり、cは1〜6の整数であり、b+dは0〜50の整数である)で表される化合物である請求項2記載のコンポジット粒子。
The fluoroether alcohol represented by the general formula [II] is represented by the general formula
HO (CH 2 ) a CF (CF 3 ) [OCF 2 CF (CF 3 )] b O (CF 2 ) c O [CF (CF 3 ) CF 2 O] d CF (CF 3 ) (CH 2 ) a OH
[III]
The composite particle according to claim 2, wherein a is an integer of 1 to 6, c is an integer of 1 to 6, and b + d is an integer of 0 to 50. .
磁性粒子がマグネタイトである請求項1記載のコンポジット粒子。   The composite particle according to claim 1, wherein the magnetic particle is magnetite. 少なくとも1個のホスホン酸部位を有する化合物が、1-ヒドロキシエタン-1,1-ジホスホン酸または2-ホスホノブタン-1,2,4-トリカルボン酸である請求項1記載のコンポジット粒子。   The composite particle according to claim 1, wherein the compound having at least one phosphonic acid moiety is 1-hydroxyethane-1,1-diphosphonic acid or 2-phosphonobutane-1,2,4-tricarboxylic acid. フルオロエーテルアルコール45〜80重量%に対し55〜20重量%の割合でホスホン酸部位含有化合物が用いられた請求項1記載のコンポジット粒子。   The composite particle according to claim 1, wherein the phosphonic acid moiety-containing compound is used in a proportion of 55 to 20 wt% with respect to 45 to 80 wt% of the fluoroether alcohol. フルオロエーテルアルコールとホスホン酸部位含有化合物との合計量に対し10〜90重量%の割合で磁性粒子が用いられた請求項1または4記載のコンポジット粒子。   The composite particles according to claim 1 or 4, wherein the magnetic particles are used in a proportion of 10 to 90% by weight based on the total amount of the fluoroetheralcohol and the phosphonic acid moiety-containing compound. 含フッ素表面処理剤として用いられる請求項1記載のコンポジット粒子。   The composite particle according to claim 1, which is used as a fluorine-containing surface treatment agent. 磁石を用い、油水混合物中の水分除去に用いられる請求項1記載のコンポジット粒子。   The composite particle according to claim 1, wherein the composite particle is used for removing water in the oil-water mixture using a magnet.
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US10605085B2 (en) 2015-10-02 2020-03-31 DOOSAN Heavy Industries Construction Co., LTD Gas turbine disk
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CN115210295A (en) * 2020-02-27 2022-10-18 优迈特株式会社 Fluorine-containing alcohol complex
CN115210295B (en) * 2020-02-27 2023-05-23 优迈特株式会社 Fluorine-containing alcohol complex

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