JP2631246B2 - Coating composition with excellent heat resistance and sliding performance - Google Patents
Coating composition with excellent heat resistance and sliding performanceInfo
- Publication number
- JP2631246B2 JP2631246B2 JP31605390A JP31605390A JP2631246B2 JP 2631246 B2 JP2631246 B2 JP 2631246B2 JP 31605390 A JP31605390 A JP 31605390A JP 31605390 A JP31605390 A JP 31605390A JP 2631246 B2 JP2631246 B2 JP 2631246B2
- Authority
- JP
- Japan
- Prior art keywords
- heat resistance
- coating composition
- weight
- group
- sliding performance
- 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 - Fee Related
Links
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- Manufacture Of Macromolecular Shaped Articles (AREA)
- Paints Or Removers (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は基材に塗布することにより、高温下での、潤
滑性、耐摩耗性などの摺動特性を付与できる塗布組成物
に関し、特に高温下で使用する回転運動や往復運動をす
る軸部、軸受、弁、弁座等の摺動部や摺動シール部など
の用途に好適なものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a coating composition capable of imparting sliding properties such as lubricity and abrasion resistance at high temperatures by being applied to a substrate, and in particular, It is suitable for applications such as a sliding portion such as a shaft portion, a bearing, a valve, a valve seat and the like that performs a rotary motion and a reciprocating motion used at a high temperature and a sliding seal portion.
［従来の技術］ 従来から200℃程度の高温下における耐熱性を有する
塗料としては、シリコーン樹脂塗料，チタン酸エステル
塗料などが広く使用されているが、この種の塗料は、高
温下での潤滑性，耐摩耗性などの摺動性能の面では、十
分でなくて、高温下で摺動性能を要する用途には使用で
きない。[Prior art] Conventionally, silicone resin paints, titanate paints, and the like have been widely used as paints having heat resistance at a high temperature of about 200 ° C., but this kind of paint is lubricated at a high temperature. It is not sufficient in terms of sliding performance such as wearability and wear resistance, and cannot be used for applications requiring sliding performance at high temperatures.
一方、グリース，潤滑油などの摺動性能を有する塗布
材料は、耐熱性に劣るばかりでなく、基材への被覆結合
力に欠点があった。On the other hand, coating materials having sliding performance, such as grease and lubricating oil, not only have poor heat resistance, but also have a drawback in the bonding strength to the base material.
最近、家電、産業機械などの分野において、耐熱性並
びに摺動性能に優れた塗料（塗布組成物）を基材に塗布
して使用する用途が増加しつつある。2. Description of the Related Art In recent years, in the fields of home electric appliances, industrial machines, and the like, applications in which a paint (application composition) having excellent heat resistance and sliding performance is applied to a substrate and used are increasing.
［発明が解決しようとする課題］ 本発明は、500℃以上の高温下でも摺動性能を保持で
き、かつ長時間の使用においても基材と強固な被覆結合
力を保持する塗布組成物を提供することを目的とする。[Problems to be Solved by the Invention] The present invention provides a coating composition that can maintain sliding performance even at a high temperature of 500 ° C. or higher and retains a strong coating bond with a substrate even when used for a long time. The purpose is to do.
［課題を解決するための手段］ 前記本発明の目的は、下記（Ａ）〜（Ｄ）の成分を混
合してなる組成物により達成される。[Means for Solving the Problems] The object of the present invention is achieved by a composition obtained by mixing the following components (A) to (D).
（Ａ）黒鉛，炭素，二硫化モリブデン，チッ化ホウ素，
フッ化炭素からなる群から選ばれた粉末の１種または２
種以上の混合物 （Ｂ）クロム，コバルト，ニッケル，チタン，亜鉛，ア
ルミニウム，ケイ素，鉄の各酸化物の群から選ばれた酸
化物粉末の１種または２種以上の混合物 （Ｃ）シリコーン樹脂，変性シリコーン樹脂，ポリカル
ボシラン,M（OR）l,M（OR）ｍ（SiRCH2）nR （ただし、ＭはZr,Al,Si,Ti,Rはアルキル基，フェニル
基，水素,lは３または4,mは２または3,nは５〜50の整
数）の群から選ばれた化合物の１種または２種以上の混
合物 （Ｄ）有機溶剤 （Ａ）の配合粉末は粒子径（直径）0.1〜100μでかつ
全体の0.1〜20重量％配合することが特に好ましい。粒
子径および配合割合が上限をこえると、均一な混合、分
散がなされにくく、また粒子径および配合割合が下限未
満では、摺動性能が低下してくる。(A) graphite, carbon, molybdenum disulfide, boron nitride,
One or two powders selected from the group consisting of fluorocarbons
A mixture of two or more oxide powders selected from the group consisting of oxides of chromium, cobalt, nickel, titanium, zinc, aluminum, silicon, and iron; (C) a silicone resin; modified silicone resins, polycarbosilane, M (OR) l, M (OR) m (SiRCH 2) nR ( provided that, M is Zr, Al, Si, Ti, R is an alkyl group, a phenyl group, hydrogen, l is 3 Or 4, m is 2 or 3, n is an integer of 5 to 50) 1 or a mixture of two or more compounds selected from the group of (D) Organic solvent (A) Compounded powder has a particle diameter (diameter) It is particularly preferable to add 0.1 to 100 μm and 0.1 to 20% by weight of the whole. When the particle size and the mixing ratio exceed the upper limits, uniform mixing and dispersion are difficult to be performed, and when the particle size and the mixing ratio are less than the lower limits, the sliding performance decreases.
（Ｂ）の配合粉末としては、Al2O3,NiO,ZnO,SiO2,Ti
O,TiO2,CoO,Co2O3,Cr2O3,Fe2O3が特に好ましい。As the compounding powder of (B), Al 2 O 3 , NiO, ZnO, SiO 2 , Ti
O, TiO 2, CoO, Co 2 O 3, Cr 2 O 3, Fe 2 O 3 is particularly preferred.
これは粒子径0.1〜100μでかつ全体の0.1〜30重量％
配合することが特に好ましい。It has a particle size of 0.1-100μ and a total weight of 0.1-30%
It is particularly preferable to mix them.
粒子径が上限をこえると、均一に混合，分散がさせれ
にくく、また下限未満では塗布後の基材への被覆結合
力、および塗膜の硬度が低下してくる。If the particle size exceeds the upper limit, it is difficult to uniformly mix and disperse the particles. If the particle size is less than the lower limit, the coating bond strength to the substrate after coating and the hardness of the coating film decrease.
また配合割合が上限をこえると、塗布後の基材への被
覆結合力が低下し、下限未満では塗膜の硬度が低下して
くる。On the other hand, if the mixing ratio exceeds the upper limit, the coating bonding strength to the base material after application decreases, and if it is less than the lower limit, the hardness of the coating film decreases.
（Ｃ）は結合材として作用するもので、（Ｄ）の有機
溶剤とともに（Ａ），（Ｂ）の混合物に配合し、本発明
の組成物を得る。シリコーン樹脂、変性シリコーン樹脂
は重合度20〜4,000のものが好ましく、またポリカルボ
シランは重合度300〜10,000のものが好ましい。(C) acts as a binder, and is mixed with the mixture of (A) and (B) together with the organic solvent of (D) to obtain the composition of the present invention. The silicone resin and the modified silicone resin preferably have a degree of polymerization of 20 to 4,000, and the polycarbosilane preferably has a degree of polymerization of 300 to 10,000.
また、有機金属アルコレートとしては、特にテトラブ
トキシチタンTi（OC4H9）4,テトラブトキシジルコニウ
ムZr（OC4H9）4,トリプロポキシアルミニウムAl（OC
3H7）３あるいはこれらとポリカルボシランの共重合物
が好ましい。Examples of the organometallic alcoholate include tetrabutoxytitanium Ti (OC 4 H 9 ) 4 , tetrabutoxy zirconium Zr (OC 4 H 9 ) 4 , and tripropoxy aluminum Al (OC
3 H 7 ) 3 or a copolymer of these with polycarbosilane is preferred.
（Ｄ）の有機溶剤はキシレン，トルエン，ベンゼン，
ブタノール，アセトン，アルカンが好ましく使用され
る。The organic solvent of (D) is xylene, toluene, benzene,
Butanol, acetone and alkanes are preferably used.
また（Ｃ）は全体に対し10〜50重量％、（Ｄ）は10〜
50重量％配合するのが特に好ましく、これらの配合量の
範囲内では、（Ａ），（Ｂ）と均一に混合，分散でき、
基材への被覆結合状態も十分となる。(C) is 10 to 50% by weight based on the whole, and (D) is 10 to 50% by weight.
It is particularly preferable to mix 50% by weight, and within the range of these mixing amounts, (A) and (B) can be uniformly mixed and dispersed.
The state of coating and bonding to the substrate is also sufficient.
さらに前記（Ａ）〜（Ｄ）の群の物質は、２種以上を
混合して配合してもよい。Further, the substances of the above-mentioned groups (A) to (D) may be mixed as a mixture of two or more.
前記（Ａ）〜（Ｄ）の混合は回転羽根型カク拌機に
（Ｄ），（Ｃ），（Ａ），（Ｂ）の順で投入カク拌した
のち、さらにサンドミル中で混合し、粉末粒子を十分分
散させることが好ましい。The above (A) to (D) were mixed in a rotary blade type stirrer in the order of (D), (C), (A), and (B), followed by stirring and mixing in a sand mill. Preferably, the particles are sufficiently dispersed.
サンドミルは、混合中の発熱をおさえるために冷却す
ることが好ましい。こうして得た混合組成物はフィルタ
ーにより，異物、凝集物を除去して本発明の塗布組成物
とする。The sand mill is preferably cooled to suppress heat generation during mixing. The thus obtained mixed composition is filtered to remove foreign substances and aggregates to obtain a coating composition of the present invention.
本発明の組成物の基材への塗布は以下の様に行う。 The composition of the present invention is applied to a substrate as follows.
基材が金属などの場合、まず基材にサンドブラストな
どによるブラスト処理および有機溶剤などによる脱脂処
理を行なう。これらの処理はカーボン等のように表面が
充分な面粗さを有している基材については不要である。
ついで本発明の組成物をエアースプレーなどで均一に塗
布し、さらに自然乾燥するか、好ましくは、１時間程度
の自然乾燥で溶剤を除去したのち空気中200〜250℃で30
分程度加熱硬化すれば十分である。When the base material is a metal or the like, first, the base material is subjected to a blast treatment with sand blast or the like and a degreasing treatment with an organic solvent or the like. These treatments are not necessary for a substrate having a sufficient surface roughness such as carbon.
Then, the composition of the present invention is uniformly applied by air spray or the like, and further air-dried, or preferably, the solvent is removed by air-drying for about 1 hour, and then dried in air at 200 to 250 ° C. for 30 hours.
Heat curing for about a minute is sufficient.
［作用］ 本発明の塗布組成物は成分（Ａ）により潤滑性能が付
与され、成分（Ｂ）と成分（Ｃ）により耐熱性，被覆結
合力が付与されるので500℃以上1,000℃までの高温下で
も摺動性能を保持できる。[Action] The coating composition of the present invention is provided with lubricating performance by the component (A), and is provided with heat resistance and coating bonding strength by the components (B) and (C). Sliding performance can be maintained even below.
また、この塗布組成物は高温下での粉体、流体ならび
に溶融金属に対しても、耐食性、耐摩耗性を有する。The coating composition also has corrosion resistance and abrasion resistance to powders, fluids and molten metals at high temperatures.
実施例１〜10 成分（Ａ）として使用する粉末として、黒鉛粉（平均
粒子径20μ），チッ化ホウ素（平均粒子径８μ），炭素
粉（平均粒子径10μ），二硫化モリブデン（平均粒子径
10μ），フッ化炭素（平均粒子径８μ）， 成分（Ｂ）として使用する酸化物粉末として、ZnO,
（平均粒子径１μ）,SiO2（平均粒子径３μ）,CoO（平
均粒子径２μ）,Cr2O3（平均粒子径２μ）,Fe2O3（平均
粒子径３μ）,TiO2（平均粒子径２μ）,Al2O3（平均粒
子径20μｍ）,NiO（平均粒子径10μｍ） 成分（Ｃ）として使用する化合物として、ポリカルボ
シラン（重合度1200），シリコーン樹脂（重合度300
0），変性シリコーン樹脂（重合度3500）,Ti（OC
4H9）4,Al（OC3H7）3, 成分（Ｄ）としてキシレン，トルエン，ブタノール，
ベンゼン，アセトン，を各々用意し、第１表に示す割合
で配合混合して、本発明の塗布組成物を得た。Examples 1 to 10 As powders used as the component (A), graphite powder (average particle diameter 20 μ), boron nitride (average particle diameter 8 μ), carbon powder (average particle diameter 10 μ), molybdenum disulfide (average particle diameter)
10μ), fluorocarbon (average particle size 8μ), oxide powder used as component (B), ZnO,
(Average particle diameter 1μ), SiO 2 (average particle diameter 3μ), CoO (average particle diameter 2μ), Cr 2 O 3 (average particle diameter 2μ), Fe 2 O 3 (average particle diameter 3μ), TiO 2 (average particle diameter) Particle diameter 2μ), Al 2 O 3 (average particle diameter 20μm), NiO (average particle diameter 10μm) Compounds used as component (C) include polycarbosilane (polymerization degree 1200), silicone resin (polymerization degree 300
0), modified silicone resin (degree of polymerization 3500), Ti (OC
4 H 9) 4, Al ( OC 3 H 7) 3, xylene as component (D), toluene, butanol,
Benzene and acetone were prepared and mixed in the proportions shown in Table 1 to obtain a coating composition of the present invention.
なお混合は、回転羽根型カク拌機を用い（Ｄ），
（Ｃ），（Ａ），（Ｂ）の順に投入して、羽根回転数50
0r.p.m.（周速500m/分）で10分間カク拌して混合した。The mixing was carried out using a rotary blade type kneader (D),
(C), (A), and (B) in this order, and the blade rotation speed 50
The mixture was stirred at 0 rpm (peripheral speed: 500 m / min) for 10 minutes and mixed.
ついで、サンドミル中で、ミル回転数100r.p.m.で２
分間粒子を分散させたのち200メッシュフイルターに通
して、塗布組成物を得た。Then, in a sand mill, at a mill rotation speed of 100 rpm, 2
After dispersing the particles for one minute, the mixture was passed through a 200 mesh filter to obtain a coating composition.
この塗布組成物をSUS303円筒状基材に（外径25mmφ、
内径20mmφ）の表面にスプレー塗布して250℃で30分、
加熱硬化して第１表に示す厚みの塗布膜を形成せしめ、
エンジンオイルとの接触角を測定した。その結果を第１
表に示す。ついでスラストカラー式摩擦摩耗試験機によ
り、この円筒状基材２個を互いに周速4m/sec,押付荷重4
0kg/cm2,室温（20℃）で摺動させて摩擦係数を得た。This coating composition is applied to a SUS303 cylindrical substrate (outer diameter 25 mmφ,
Spray coated on the surface of inner diameter 20mmφ) at 250 ℃ for 30 minutes,
Heat-cured to form a coating film having the thickness shown in Table 1,
The contact angle with the engine oil was measured. The result is
It is shown in the table. Then, using a thrust collar type friction and wear tester, these two cylindrical base materials were mutually connected at a peripheral speed of 4 m / sec and a pressing load of 4
It was slid at 0 kg / cm 2 at room temperature (20 ° C.) to obtain a coefficient of friction.
ついでこの円筒状基材を電気炉中で800℃で１時間保
持したのち、冷却し、再度前記の摩擦試験を行なった。
その結果を第１表に示す。Then, the cylindrical substrate was kept in an electric furnace at 800 ° C. for 1 hour, cooled, and subjected to the friction test again.
Table 1 shows the results.
比較例１〜２ 前記実施例で使用したと同一の化合物を第１表に示す
割合で配合して実施例１と同一の方法により塗布組成物
を得た。Comparative Examples 1 and 2 The same compounds as used in the above Examples were mixed in the proportions shown in Table 1 to obtain coating compositions in the same manner as in Example 1.
さらに、その塗布組成物を実施例１と同一の方法によ
りSUS303円筒状基材に塗布して評価した。その結果を第
１表に示す。Further, the coating composition was applied to a SUS303 cylindrical base material in the same manner as in Example 1 and evaluated. Table 1 shows the results.
［発明の効果］ 以上の実施例，比較例の結果から明らかなように本発
明は高温下でも優れた摺動性能を有する塗布組成物であ
って、工業的にきわめて有用なものである。 [Effects of the Invention] As is apparent from the results of the above Examples and Comparative Examples, the present invention is a coating composition having excellent sliding performance even at a high temperature, and is industrially extremely useful.
Claims (2)
ツ化ホウ素、フツ化炭素からなる群から選ばれた粉末の
１種または２種以上の混合物 （Ｂ）クロム、コバルト、ニッケル、チタン、亜鉛、ア
ルミニウム、ケイ素、鉄、の各酸化物の群から選ばれた
酸化物粉末の１種または２種以上の混合物 （Ｃ）シリコーン樹脂、変性シリコーン樹脂、ポリカル
ボシラン、Ｍ（OR）ｌ、Ｍ（OR）ｍ（SiRCH2）nR （ただし、ＭはZr,Al,Si,Ti,Rはアルキル基，フェニル
基，水素,lは３または4,mは２または3,nは５〜50の整
数） の群から選ばれた化合物の１種または２種以上の混合物 （Ｄ）有機溶剤 以上の（Ａ）〜（Ｄ）を混合をしてなる耐熱性並びに摺
動性能に優れた塗布組成物。1. A mixture of one or more powders selected from the group consisting of (A) graphite, carbon, molybdenum disulfide, boron nitride, and carbon fluoride. (B) chromium, cobalt, nickel, titanium A mixture of one or more oxide powders selected from the group consisting of oxides of zinc, aluminum, silicon, and iron (C) silicone resin, modified silicone resin, polycarbosilane, M (OR) l , M (oR) m (SiRCH 2) nR ( provided that, M is Zr, Al, Si, Ti, R is an alkyl group, a phenyl group, hydrogen, l is 3 or 4, m is 2 or 3, n is 5 (D is an integer of 50) A mixture of one or more compounds selected from the group consisting of (D) an organic solvent and a coating excellent in heat resistance and sliding performance obtained by mixing the above (A) to (D). Composition.
％，（Ｂ）0.1〜30重量％，（Ｃ）10〜50重量％，
（Ｄ）10〜50重量％である耐熱性並びに摺動特性に優れ
た塗布組成物2. The method according to claim 1, wherein (A) is 0.1 to 20% by weight, (B) is 0.1 to 30% by weight, (C) is 10 to 50% by weight,
(D) A coating composition having excellent heat resistance and sliding properties of 10 to 50% by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31605390A JP2631246B2 (en) | 1989-11-25 | 1990-11-22 | Coating composition with excellent heat resistance and sliding performance |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30580589 | 1989-11-25 | ||
| JP1-305805 | 1989-11-25 | ||
| JP31605390A JP2631246B2 (en) | 1989-11-25 | 1990-11-22 | Coating composition with excellent heat resistance and sliding performance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0418456A JPH0418456A (en) | 1992-01-22 |
| JP2631246B2 true JP2631246B2 (en) | 1997-07-16 |
Family
ID=26564463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31605390A Expired - Fee Related JP2631246B2 (en) | 1989-11-25 | 1990-11-22 | Coating composition with excellent heat resistance and sliding performance |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2631246B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102014204075A1 (en) * | 2014-03-06 | 2015-09-10 | MTU Aero Engines AG | Anti - ice coating for compressor blades |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5763494B2 (en) * | 2011-09-30 | 2015-08-12 | 日本特殊陶業株式会社 | Lubricating paint composition and mounting part for internal combustion engine |
| JP6059170B2 (en) | 2013-04-30 | 2017-01-11 | 日本特殊陶業株式会社 | Temperature sensor |
| CN104212347A (en) * | 2014-09-17 | 2014-12-17 | 江苏海晟涂料有限公司 | Boron-modified organic silicon resin high-temperature-resistant coating and preparation method thereof |
| CN110760822A (en) * | 2019-12-03 | 2020-02-07 | 中节能太阳能科技（镇江）有限公司 | Manufacturing method of PECVD graphite boat carrier |
-
1990
- 1990-11-22 JP JP31605390A patent/JP2631246B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102014204075A1 (en) * | 2014-03-06 | 2015-09-10 | MTU Aero Engines AG | Anti - ice coating for compressor blades |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0418456A (en) | 1992-01-22 |
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