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JPH0822944B2 - Perfluoropolyether compound composition - Google Patents
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JPH0822944B2 - Perfluoropolyether compound composition - Google Patents

Perfluoropolyether compound composition

Info

Publication number
JPH0822944B2
JPH0822944B2 JP8301987A JP8301987A JPH0822944B2 JP H0822944 B2 JPH0822944 B2 JP H0822944B2 JP 8301987 A JP8301987 A JP 8301987A JP 8301987 A JP8301987 A JP 8301987A JP H0822944 B2 JPH0822944 B2 JP H0822944B2
Authority
JP
Japan
Prior art keywords
perfluoropolyether
weight
compound composition
conductive filler
consistency
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP8301987A
Other languages
Japanese (ja)
Other versions
JPS63251455A (en
Inventor
清司 水島
秀樹 中原
博之 山田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DuPont Toray Specialty Materials KK
Original Assignee
Dow Corning Asia Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dow Corning Asia Ltd filed Critical Dow Corning Asia Ltd
Priority to JP8301987A priority Critical patent/JPH0822944B2/en
Publication of JPS63251455A publication Critical patent/JPS63251455A/en
Publication of JPH0822944B2 publication Critical patent/JPH0822944B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Compositions Of Macromolecular Compounds (AREA)

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、パーフルオロポリエーテルコンパウンド組
成物に関し、特に熱伝導性の良好なパーフルオロポリエ
ーテルコンパウンド組成物に関するものである。
TECHNICAL FIELD The present invention relates to a perfluoropolyether compound composition, and more particularly to a perfluoropolyether compound composition having good thermal conductivity.

〔発明の背景〕[Background of the Invention]

単独で良好な電気絶縁性を有するパーフルオロポリエ
ーテルは、一般に油状のものとして市販されているが、
この油状のパーフルオロポリエーテルは、そのままでは
流動性を有するために電気機器に適用することが困難で
ある。このため、ポリテトラフルオロエチレンで増稠さ
れたパーフルオロポリエーテルよりなるグリースも市販
されているが、この増稠されたパーフルオロポリエーテ
ルは、潤滑剤としては有用であっても、熱伝導性が低い
ため、電気機器において、電気絶縁性を確保しながらか
つ電気機器内で発生した熱を速やかに放散させる必要が
ある用途には不適格である。
Perfluoropolyether, which alone has good electrical insulation, is generally marketed as an oil,
Since this oily perfluoropolyether has fluidity as it is, it is difficult to apply it to electric equipment. For this reason, greases consisting of perfluoropolyether thickened with polytetrafluoroethylene are also commercially available, but this thickened perfluoropolyether is useful as a lubricant but has a thermal conductivity. Therefore, it is unsuitable for applications in which it is necessary to quickly dissipate heat generated in the electric device while ensuring electric insulation in the electric device.

一方、従来、電気機器に使用される熱伝導率の大きい
絶縁性グリースとしては、ポリジメチルシロキサンまた
はポリメチルフェニルシロキサンなどのポリオルガノシ
ロキサンよりなるシリコーンオイルに熱伝導性充填剤を
添加配合したシリコーングリースが公知である。
On the other hand, conventionally, as an insulating grease having a high thermal conductivity used in electric equipment, a silicone grease prepared by adding a thermally conductive filler to a silicone oil made of polyorganosiloxane such as polydimethylsiloxane or polymethylphenylsiloxane. Is known.

しかしながら、以上の如きシリコーングリースを、接
点部分のあるリレー回路やマイクロモーター周辺に使用
した場合には、シリコーンオイルに含まれる低分子量の
シロキサンまたはシリコーングリースより分離したシリ
コーンオイルが接点部のスパークによって燃焼して二酸
化珪素(SiO2)、炭化珪素(SiC)等が生成して絶縁膜
を形成するため、接点の接続不良を生じ、結局電気機器
に好適に使用することができないという問題点を有して
いる。
However, when the silicone grease as described above is used in the vicinity of relay circuits or micromotors that have contact points, the low-molecular-weight siloxane contained in the silicone oil or the silicone oil separated from the silicone grease is burned by the sparks at the contact points. As a result, silicon dioxide (SiO 2 ), silicon carbide (SiC), etc. are generated to form an insulating film, resulting in poor contact connection, and eventually there is a problem that it cannot be suitably used for electrical equipment. ing.

〔発明の目的〕[Object of the Invention]

本発明は、以上の如き事情に基づいてなされたもので
あって、その目的は、熱伝導性が良好なパーフルオロポ
リエーテルコンパウンド組成物を提供することにある。
The present invention has been made based on the above circumstances, and an object thereof is to provide a perfluoropolyether compound composition having good thermal conductivity.

〔発明の構成〕[Structure of Invention]

本発明のパーフルオロポリエーテルコンパウンド組成
物は、10〜90重量%のパーフルオロポリエーテルと、90
〜10重量%の熱伝導性充填剤とからなり、その稠度が10
0〜500であることを特徴としている。
The perfluoropolyether compound composition of the present invention comprises 10 to 90% by weight of perfluoropolyether and 90
Consists of ~ 10% by weight of thermally conductive filler and has a consistency of 10
It is characterized by 0 to 500.

〔発明の作用効果〕[Effects of the Invention]

本発明のパーフルオロポリエーテルコンパウンド組成
物は、熱伝導性充填剤が含有されるために高い熱伝導率
を有し、しかもその稠度が100〜500であるので、例えば
熱の発生を伴う電気機器における絶縁用グリースとして
好適に使用することができる。
The perfluoropolyether compound composition of the present invention has a high thermal conductivity due to the inclusion of the thermally conductive filler, and since its consistency is 100 to 500, for example, electrical equipment accompanying the generation of heat. It can be suitably used as an insulating grease.

〔発明の具体的構成〕[Specific configuration of the invention]

以下、本発明を具体的に説明する。 Hereinafter, the present invention will be specifically described.

本発明のパーフルオロポリエーテルコンパウンド組成
物は、次のパーフルオロポリエーテルおよび熱伝導
性充填剤成分からなっている。
The perfluoropolyether compound composition of the present invention comprises the following perfluoropolyether and thermally conductive filler components.

パーフルオロポリエーテル 本発明に用いられるパーフルオロポリエーテルとして
は、例えば下記のものが例示される。
Perfluoropolyether Examples of the perfluoropolyether used in the present invention include the following.

XC3F6OCF2−OC2F4−ORY ここに、P,Q,Rは0または正の整数であってP+Q+
R>1である。またX,Yは分子鎖末端基であり、その例
としては、 −F、−CF3、−C2F5、−C3F7 −OF、−OCF3、−OC2F5、−OC3F7などが挙げられる。
XC 3 F 6 O P CF 2 -O Q C 2 F 4 -O R Y here, P, Q, R is 0 or a positive integer P + Q +
R> 1. The X, Y is the molecular chain terminal groups, and examples thereof, -F, -CF 3, -C 2 F 5, -C 3 F 7, -OF, -OCF 3 , -OC 2 F 5 , -OC 3 F 7 , And the like.

パーフルオロポリエーテルの具体例としては、次のも
のがある。
The following are specific examples of the perfluoropolyether.

(ロ)CF3−OC2F4−OCF2−OQCF3 熱伝導性充填剤 本発明に用いられる熱伝導性充填剤は、パーフルオロ
ポリエーテルに適度の稠度を与えると共に、熱伝導性を
付与するための成分である。このような熱伝導性充填剤
としては、金属酸化物、石英粉、炭化シリコン、チッ化
ボロン、チッ化アルミニウムおよびチッ化ケイ素のうち
の少なくとも1種以上を挙げることができる。金属酸化
物としては酸化亜鉛、二酸化チタン、酸化ベリリウム、
酸化マグネシウム、酸化ニッケル、酸化バナジウム、酸
化銅、酸化鉄および酸化銀等が例示される。また、電気
絶縁性が要求されない用途においては、金属粉、例えば
金(Au)、銅(Cu)、銀(Ag)、ニッケル(Ni)、鉄
(Fe)、コバルト(Co)、鉛(Pb)、マグネシウム(M
g)およびチタン(Ti)などを用いることもできる。
(B) CF 3 -OC 2 F 4 -O R CF 2 -O Q CF 3 Thermally Conductive Filler The thermally conductive filler used in the present invention is a component for imparting an appropriate consistency to perfluoropolyether and imparting thermal conductivity. Examples of such a heat conductive filler include at least one or more of metal oxide, quartz powder, silicon carbide, boron nitride, aluminum nitride and silicon nitride. Metal oxides include zinc oxide, titanium dioxide, beryllium oxide,
Examples thereof include magnesium oxide, nickel oxide, vanadium oxide, copper oxide, iron oxide and silver oxide. Also, in applications where electrical insulation is not required, metal powders such as gold (Au), copper (Cu), silver (Ag), nickel (Ni), iron (Fe), cobalt (Co), lead (Pb). , Magnesium (M
g) and titanium (Ti) can also be used.

パーフルオロポリエーテルと熱伝導性充填剤との配合
割合は、パーフルオロポリエーテルの分子量、熱伝導性
充填剤の粒度分布または要求される稠度の大きさによっ
ても変わるが、パーフルオロポリエーテル10〜90重量%
に対して、熱伝導性充填剤は90〜10重量%であることが
好ましい。パーフルオロポリエーテルが10重量%未満で
は、得られるコンパウンド自体が非常に固くなり過ぎて
使用が不便であり、また90重量%を超えると、十分な熱
伝導性が得られない。
The mixing ratio of the perfluoropolyether and the thermally conductive filler varies depending on the molecular weight of the perfluoropolyether, the particle size distribution of the thermally conductive filler, or the required consistency, but the perfluoropolyether 10 to 10- 90% by weight
On the other hand, it is preferable that the heat conductive filler is 90 to 10% by weight. If the content of perfluoropolyether is less than 10% by weight, the resulting compound itself becomes too hard and it is inconvenient to use, and if it exceeds 90% by weight, sufficient thermal conductivity cannot be obtained.

そして、組成物の稠度は、100〜500の範囲がよいが特
に200〜400が好ましい。この値が100未満ではコンパウ
ンドが固すぎて電気機器等に適用することができない一
方、500を超えると、コンパウンドの流動性が高過ぎて
好ましくない。
The consistency of the composition is preferably in the range of 100 to 500, and particularly preferably 200 to 400. If this value is less than 100, the compound is too hard to be applied to electrical equipment and the like, while if it exceeds 500, the fluidity of the compound is too high, which is not preferable.

ここに稠度の値は、混和器に試料を入れて25℃に保持
した後、試料を60往復混和した直後を測定したものであ
る(JIS K2220)。
The value of the consistency is measured immediately after the sample was placed in a mixer and kept at 25 ° C, and then the sample was mixed 60 times back and forth (JIS K2220).

〔実施例1〕 式 で表される分子量が4100、20℃での粘度が450cstのパー
フルオロポリエーテル「フォンブリンY−45」(モンテ
フルオス社製)100重量部と、チッ化ホウ素「ボロンナ
イトライドGP」(電気化学工業社製)41重量部とを混練
した後、三本ロールで均質化して稠度300の本発明のパ
ーフルオロポリエーテルコンパウンド組成物(試料No.
1)を得た。
Example 1 Formula 100 parts by weight of a perfluoropolyether “Fomblin Y-45” (made by Montefluos) having a molecular weight of 4100 and a viscosity of 450 cst at 20 ° C. and boron nitride “boron nitride GP” (electrochemical industry) (Manufactured by K.K.) 41 parts by weight and then homogenized with a three-roll mill to give a perfluoropolyether compound composition of the present invention having a consistency of 300 (Sample No.
1) got.

〔実施例2〜4〕 熱伝導性充填剤以外の条件は実施例1と同様にして、
チッ化ホウ素の代わりに酸化アルミニウム「AL−43PC
A」(昭和軽金属社製)145重量部を用いて稠度294の本
発明パーフルオロポリエーテルコンパウンド組成物(試
料No.2)を得た。また同様に酸化亜鉛「1号亜鉛華」
(白水化学工業社製)130重量部を用いて稠度302の本発
明パーフルオロポリエーテルコンパウンド組成物(試料
No.3)を得た。
[Examples 2 to 4] The conditions other than the thermally conductive filler were the same as in Example 1,
Aluminum oxide "AL-43PC" instead of boron nitride
145 parts by weight of "A" (manufactured by Showa Light Metal Co., Ltd.) was used to obtain a perfluoropolyether compound composition of the present invention (Sample No. 2) having a consistency of 294. Similarly, zinc oxide "No. 1 zinc flower"
130 parts by weight (manufactured by Hakusui Chemical Co., Ltd.) of the present invention having a consistency of 302, the perfluoropolyether compound composition (sample
No.3) was obtained.

一方、比較のために、以下に示す式からなる20℃での
粘度が500cstであるポリジメチルシロキサン100重量部
と酸化亜鉛「1号亜鉛華」250重量部とを混練した後
に、三本ロールで均質化して稠度290の比較用組成物
(試料No.4)を得た。
On the other hand, for comparison, after kneading 100 parts by weight of polydimethylsiloxane having a viscosity of 500 cst at 20 ° C. and 250 parts by weight of zinc oxide “No. The composition was homogenized to obtain a comparative composition (Sample No. 4) having a consistency of 290.

上述した試料No.1〜No.4について熱伝導率を測定し、
また、耐熱/耐酸試験を実施したところ、第1表に示す
結果が得られた。
formula Measuring the thermal conductivity of the above-mentioned sample No. 1 ~ No. 4,
When the heat / acid resistance test was conducted, the results shown in Table 1 were obtained.

耐熱/耐酸試験は次の要領で実施した。すなわち、電
気分解槽でアルマイト処理したアルミダイキャスト上に
各試料を塗布し、150℃で24時間放置してその耐熱/耐
酸性を調査した。
The heat / acid resistance test was carried out as follows. That is, each sample was applied on aluminum die-cast which was anodized in an electrolysis tank and left at 150 ° C. for 24 hours to examine its heat resistance / acid resistance.

以上の結果から明らかなように、比較用の試料No.4
は、耐熱/耐酸試験においてオイル分がほとんど蒸発し
てしまい、グリース状を失ったのに対して、本発明に係
る試料No.1〜No.3では実質上変化が見られなかった。
As is clear from the above results, comparative sample No. 4
In the heat resistance / acid resistance test, the oil content was almost evaporated and the grease was lost, whereas in Samples No. 1 to No. 3 according to the present invention, substantially no change was observed.

〔発明の効果〕〔The invention's effect〕

以上説明したように、本発明のパーフルオロポリエー
テルコンパウンド組成物は、10〜90重量%のパーフルオ
ロポリエーテルと、90〜10重量%の熱伝導性充填剤とか
らなり、その稠度が100〜500であるので、熱伝導性が高
くてしかも高温下での耐薬品性が大きく、従って発熱を
伴う機器における放熱性グリースとして有用であり、特
に熱伝導性充填剤として絶縁性物質よりなるものを用い
ることにより、耐熱性を犠牲にすることなしに電気絶縁
性の優れたグリースとして電気機器に好適に使用するこ
とができる。
As explained above, the perfluoropolyether compound composition of the present invention comprises 10 to 90% by weight of perfluoropolyether and 90 to 10% by weight of a thermally conductive filler, and has a consistency of 100 to 100%. Since it is 500, it has high thermal conductivity and high chemical resistance at high temperatures, so it is useful as a heat-dissipating grease in devices that generate heat. By using the grease, it can be suitably used for electric equipment as grease having excellent electric insulation without sacrificing heat resistance.

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】10〜90重量%のパーフルオロポリエーテル
と、90〜10重量%の熱伝導性充填剤とからなり、その稠
度が100〜500であることを特徴とするパーフルオロポリ
エーテルコンパウンド組成物。
1. A perfluoropolyether compound comprising 10 to 90% by weight of perfluoropolyether and 90 to 10% by weight of a thermally conductive filler, the consistency of which is 100 to 500. Composition.
JP8301987A 1987-04-06 1987-04-06 Perfluoropolyether compound composition Expired - Lifetime JPH0822944B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8301987A JPH0822944B2 (en) 1987-04-06 1987-04-06 Perfluoropolyether compound composition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8301987A JPH0822944B2 (en) 1987-04-06 1987-04-06 Perfluoropolyether compound composition

Publications (2)

Publication Number Publication Date
JPS63251455A JPS63251455A (en) 1988-10-18
JPH0822944B2 true JPH0822944B2 (en) 1996-03-06

Family

ID=13790528

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8301987A Expired - Lifetime JPH0822944B2 (en) 1987-04-06 1987-04-06 Perfluoropolyether compound composition

Country Status (1)

Country Link
JP (1) JPH0822944B2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69125917T2 (en) * 1990-11-28 1997-09-25 Hitachi Ltd Electrical device containing a lubricant or a thermally conductive composition.
JP4603700B2 (en) 2001-01-04 2010-12-22 株式会社日立製作所 High thermal conductive grease composition and cooling device using the same
JP2005325929A (en) * 2004-05-14 2005-11-24 Yaskawa Electric Corp Rolling bearing and method of using the same

Also Published As

Publication number Publication date
JPS63251455A (en) 1988-10-18

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