JPS63145373A - Coating material composition - Google Patents
Coating material compositionInfo
- Publication number
- JPS63145373A JPS63145373A JP29289786A JP29289786A JPS63145373A JP S63145373 A JPS63145373 A JP S63145373A JP 29289786 A JP29289786 A JP 29289786A JP 29289786 A JP29289786 A JP 29289786A JP S63145373 A JPS63145373 A JP S63145373A
- Authority
- JP
- Japan
- Prior art keywords
- weight
- parts
- titanium dioxide
- coating material
- carbon black
- 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.)
- Granted
Links
- 239000000203 mixture Substances 0.000 title claims description 28
- 239000000463 material Substances 0.000 title claims description 13
- 239000011248 coating agent Substances 0.000 title claims description 10
- 238000000576 coating method Methods 0.000 title claims description 10
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 44
- 239000000843 powder Substances 0.000 claims abstract description 25
- 229920001296 polysiloxane Polymers 0.000 claims abstract description 14
- 239000006229 carbon black Substances 0.000 claims abstract description 11
- 239000002245 particle Substances 0.000 claims abstract description 9
- 239000004408 titanium dioxide Substances 0.000 claims description 20
- 239000000654 additive Substances 0.000 claims description 5
- 230000000996 additive effect Effects 0.000 claims description 3
- 230000009974 thixotropic effect Effects 0.000 abstract description 2
- 238000002156 mixing Methods 0.000 abstract 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 12
- 238000007598 dipping method Methods 0.000 description 6
- 239000000377 silicon dioxide Substances 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 238000003618 dip coating Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000004447 silicone coating Substances 0.000 description 3
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000002075 main ingredient Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 125000000962 organic group Chemical group 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
Landscapes
- Paints Or Removers (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の目的〕
（産業上の利用分野）
本発明はコーティング材組成物、特にディップコート用
シリコーン系コーティング材に関するもので、ハイブリ
ッドＩＣの防湿絶縁コート等に利用されるものである。Detailed Description of the Invention [Objective of the Invention] (Industrial Field of Application) The present invention relates to a coating material composition, particularly a silicone coating material for dip coating, which is used as a moisture-proof insulation coating for hybrid ICs, etc. It is something.
（従来の技術）
本発明に係る従来技術としては、特開昭５９−１７６３
４７号の公報がある。(Prior art) As a prior art related to the present invention, Japanese Patent Application Laid-Open No. 59-1763
There is a publication number 47.
従来ディップコート用材料は、ディップ作業時の様な剪
断応力がかかった状況では見かけの粘度が低く、ディッ
プ作業後のような剪断応力がない場合には見かけの粘度
が高いという、所謂チクソトロピー性が高い方が良く、
更にディップ作業時の見かけ粘度は低ければ低い程作業
性が良く、また硬化後は強靭な皮膜強度を持つことが要
望され、ディップコート用シリコーン系コーティング材
（ここでいうシリコーン系とはオルガノポリシロキサン
を主成分とする組成物をいう）は、チクソトロピー性や
皮膜強度を高めるために微粒子シリカ粉末を添加してい
た。Conventional materials for dip coating have a so-called thixotropic property, in which the apparent viscosity is low when shear stress is applied, such as during dipping, and the apparent viscosity is high when there is no shear stress, such as after dipping. Higher is better;
Furthermore, the lower the apparent viscosity during dipping, the better the workability, and the film is required to have strong film strength after curing. ) contains fine-particle silica powder to improve thixotropy and film strength.
（発明が解決しようとする問題点）
しかし前記チクソトロピー性や皮膜強度を高めるために
微粒子シリカ粉末を添加する場合に、一般的に数十重量
部を超えると凝集をおこしたり、高粘度化したりするた
めに、ディップ作業が困難になるので、より高いチクソ
トロピー性や皮膜強度が得られないという問題点があっ
た。(Problems to be Solved by the Invention) However, when adding fine silica powder to improve the thixotropy and film strength, generally if the amount exceeds several tens of parts by weight, agglomeration or high viscosity may occur. Therefore, the dipping operation becomes difficult, resulting in a problem that higher thixotropy and film strength cannot be obtained.
本発明はディップコート用シリコーン系コーティング材
組成物に於いて、チクソトロピー性が高。The present invention provides a silicone coating material composition for dip coating that has high thixotropy.
く、かつ強靭な皮膜強度を持つコーティング材組成物を
技術的課題とするものである。The technical objective is to create a coating material composition that is strong and has a strong film strength.
（問題点を解決するための手段）
前記技術的課題を解決するための手段は、オルガノポリ
シロキサンを主成分とする組成物に添加剤として一次平
均粒径が５．０〜１０（１ｍμ、比表面積が２０ｒｄ／
ｇ以上の二酸化チタン粉末、もしくは前記二酸化チタン
粉末とカーボンブラックを加えたコーティング材組成物
で、オルガノポリシロキサンを主成分とする組成物１０
０重量部に対し、前記二酸化チタンを５，０〜１５０重
量部添加するか、又はオルガノポリシロキサン組成物１
００重量部に対し、カーボンブラックを０．５〜５．０
重量部添加したコーティング材組成物である。(Means for Solving the Problem) A means for solving the above technical problem is to add an additive to a composition containing organopolysiloxane as a main component with a primary average particle size of 5.0 to 10 (1 mμ, Surface area is 20rd/
Composition 10 containing organopolysiloxane as a main component, which is a coating material composition containing titanium dioxide powder of 10 g or more, or the titanium dioxide powder and carbon black.
0 parts by weight, 5.0 to 150 parts by weight of the titanium dioxide is added, or organopolysiloxane composition 1
0.5 to 5.0 parts by weight of carbon black
This is a coating material composition in which parts by weight of the above are added.
（作用） 前記技術的手段は次のように作用する。(effect) The technical means works as follows.
すなわち、二酸化チタン粉末はチクソトロピー性を高く
する目的で添加するが、従来の微粒子シリカ粉末に比べ
、同じチクソトロピー性を持たせた場合、見かけ粘度が
低いという特徴がある。この原因は結晶構造１粒子表面
状態などによると推定されるが、（実施例１と比較例１
参照）、二酸化チタン粉末を添加剤として使用すれば微
粒子シリカ粉末を使用した時よりも同−見かけ粘度で高
いチクソトロピー性を得ることができる。更に二酸化チ
タン粉末は微粒子シリカ粉末に比べ添加量による見かけ
粘度増加が低いため（実施例１．比較例１参照）、高充
填が可能となり皮膜強度がアップするものである。That is, titanium dioxide powder is added for the purpose of increasing thixotropy, but compared to conventional fine particle silica powder, titanium dioxide powder has a characteristic that it has a lower apparent viscosity when given the same thixotropy. The cause of this is presumed to be due to the crystal structure 1 particle surface condition, etc. (Example 1 and Comparative Example 1)
If titanium dioxide powder is used as an additive, higher thixotropy can be obtained at the same apparent viscosity than when fine-grained silica powder is used. Furthermore, titanium dioxide powder has a lower increase in apparent viscosity depending on the amount added than fine silica powder (see Example 1 and Comparative Example 1), which enables high filling and increases film strength.
この様な効果が得られる二酸化チタン粉末の一次平均粒
径は５．０〜１００ｍμが好ましく、比表面積が２０ｍ
２／ｇ以上のものが良いものである（実施例１．比較例
２参照）。添加量はベースシリコーン系組成物１００重
量部に対し５．０〜１５０重量部がチクソトロピー性や
皮膜強度と見かけ粘度のバランスがとれ作業性が良好で
あり、又二酸化チタン粉末の表面処理は行っても、行わ
なくてもどちらでも良い。The primary average particle size of titanium dioxide powder that provides such effects is preferably 5.0 to 100 mμ, and the specific surface area is 20 mμ.
2/g or more is good (see Example 1 and Comparative Example 2). The amount added is 5.0 to 150 parts by weight per 100 parts by weight of the base silicone composition, which provides a good balance between thixotropy, film strength, and apparent viscosity, resulting in good workability, and without surface treatment of the titanium dioxide powder. Either is fine even if you don't do it.
又見かけ粘度を低下させ、作業性を向上させるとともに
二酸化チタン粉末の高充填化を可能にさせるためにカー
ボンブラックを添加することも有効である（実施例１，
２．３参照）。It is also effective to add carbon black to reduce the apparent viscosity, improve workability, and enable high filling of titanium dioxide powder (Example 1,
(see 2.3).
添加量は任意に選択できるが、絶縁性を考慮するとベー
スシリコン組成物１００Ｍ量部に対し０゜５〜５．０重
量部が良い。The amount added can be arbitrarily selected, but in consideration of insulation, it is preferably 0.5 to 5.0 parts by weight per 100 M parts of the base silicone composition.
この様に添加剤として二酸化チタン粉末もしくは二酸化
チタン粉末とカーボンブラックを使用したシリコーン系
コーティング材組成物は低粘度。In this way, silicone coating material compositions that use titanium dioxide powder or titanium dioxide powder and carbon black as additives have low viscosity.
高チクソトロピー性高強度というディップコート用とし
て優れた性能を有するものである。It has excellent properties for dip coating, such as high thixotropy and high strength.
（実施例） 以下実施例について説明する。(Example) Examples will be described below.
（実施例１）
見かけ粘度１２．０ＯＯｃｐｓ（Ｂ型回転粘度計にて回
転数ｌＱｒｐｍ、 ロータ寛７で回転開始から１分後の
粘度）、チクソトロピー性を示す数値ｎ＝０．３５であ
る。ポリアルキルアルケニルシロキサン及びポリアルキ
ル水素シロキサンを主成分とするシリコーン系組成物１
００重量部に対し、−次子均粒径２０ｍμ、比表面積５
０ｍ／ｇである二酸化チタン粉末を２０重量部添加した
。(Example 1) The apparent viscosity was 12.0OOcps (viscosity 1 minute after the start of rotation with a B-type rotational viscometer at a rotational speed of 1Qrpm and a rotor width of 7), and a numerical value n=0.35 indicating thixotropy. Silicone composition 1 containing polyalkylalkenylsiloxane and polyalkylhydrogensiloxane as main components
For 00 parts by weight, the average particle diameter is 20 mμ, and the specific surface area is 5.
20 parts by weight of titanium dioxide powder having a concentration of 0 m/g was added.
ここで、
η４＝４ｒｐｍで測定した粘度、η＋ｏ＝１Ｏｒｐｍで
測定した粘度で、それぞれ回転開始から１分後の粘度で
ある。Here, the viscosity measured at η4=4 rpm and the viscosity measured at η+o=1 Orpm, respectively, are the viscosity one minute after the start of rotation.
（注）ηの値が大きい程チクソトロピー性が高いことを
示す。(Note) The larger the value of η, the higher the thixotropy.
この様にして得られた組成物の性能を表１に示す。Table 1 shows the performance of the composition thus obtained.
（実施例２）
実施例１で得られた組成物にカーボンブラックを１重量
部添加したところ、見かけ粘度が低下し作業性が向上し
た、これを第１表に示す。(Example 2) When 1 part by weight of carbon black was added to the composition obtained in Example 1, the apparent viscosity decreased and the workability improved. Table 1 shows this.
（比較例１）
実施例と同様なシリコーン系組成物１００重量部に対し
、−次子均粒径４０ｍμ、比表面積５０ｍ′／ｇである
シリカ粉末を２０重量部添加した。(Comparative Example 1) To 100 parts by weight of the same silicone composition as in Example, 20 parts by weight of silica powder having an average particle diameter of 40 mμ and a specific surface area of 50 m'/g was added.
この様にして得られた組成物は見かけ粘度が高すぎてデ
ィップ作業性が著しく悪くなった、これを第１表に示す
。The composition thus obtained had an excessively high apparent viscosity, and its dipping workability was extremely poor, as shown in Table 1.
（比較例２）
実施例１と同様なシリコーン系組成物１００重量部に対
し、−次子均粒径１２０ｍμ、比表面積１０ｍ／ｇであ
る二酸化チタンを２０重量部添加した。(Comparative Example 2) To 100 parts by weight of the same silicone composition as in Example 1, 20 parts by weight of titanium dioxide having an average particle diameter of 120 mμ and a specific surface area of 10 m/g was added.
この様にして得られた組成物は、チクソトロピー性が低
いため、ディップ作業時に液ダレ等が発生し操作性が悪
い、これを第１表に示す。The composition obtained in this manner has low thixotropy, and therefore drips during dipping, resulting in poor operability, as shown in Table 1.
（実施例３）
実施例１と同様なシリコーン系組成物１００重量部に対
し、−次平均粒径２０ｍμ、比表面積５０ｎ？／ｇであ
る二酸化チタンを４０重量部、カーボンブラックを２重
量部添加した、これを第１表に示す。(Example 3) For 100 parts by weight of the same silicone composition as in Example 1, -order average particle diameter 20 mμ and specific surface area 50 n? Table 1 shows that 40 parts by weight of titanium dioxide and 2 parts by weight of carbon black were added.
高いチクソトロピー性を得る方法としては、―
６Ｈ５
の大きなシロキサンを添加する方法が考えられ、又、強
靭な皮膜強度を得る方法とては、（２）シリコン系コー
ティング材組成物の主剤とされるシロキサンにおける有
機基の一部をフェニル基とする方法、
が考えられ、両者を同時に用いることにより、高いチク
ソトロピー性で高強度な組成物が得られる。A possible method for obtaining high thixotropy is to add a large siloxane of -6H5, and a method for obtaining strong film strength is (2) adding siloxane, which is the main ingredient of silicone-based coating material compositions. A possible method is to use phenyl groups as part of the organic groups in , and by using both at the same time, a composition with high thixotropy and high strength can be obtained.
しかし前記（１）については合成が困難で、高粘度にな
るといった欠点があり、（２）については僅か数％しか
引張強度を向上できないといった欠点がある。However, (1) has the disadvantage that it is difficult to synthesize and has a high viscosity, and (2) has the disadvantage that the tensile strength can only be improved by a few percent.
本発明は入手容易な二酸化チタン粉末、又は二酸化チタ
ン粉末とカーボンブラックを添加するだけであるために
製造が容易であり、又高充填が可能であるので１曜的に
皮膜強度を上げることができるのである。The present invention is easy to manufacture because it only requires the addition of easily available titanium dioxide powder or titanium dioxide powder and carbon black.Also, since high filling is possible, the film strength can be instantly increased. It is.
又無機系添加剤を使用するこがら線膨張係数が小さくな
り冷熱衝撃性が良くなるという効果もある。Furthermore, the use of inorganic additives also has the effect of reducing the coefficient of linear expansion and improving thermal shock resistance.
Claims (3)
、添加剤として一次平均粒径が５〜１００ｍμ、比表面
積が２０ｍ＾２／ｇ以上の二酸化チタン粉末、もしくは
前記２酸化チタン粉末とカーボンブラックを加えたコー
ティング材組成物。(1) Titanium dioxide powder with a primary average particle size of 5 to 100 mμ and a specific surface area of 20 m^2/g or more, or the titanium dioxide powder and carbon black as an additive to a composition containing organopolysiloxane as the main component. A coating material composition containing
００重量部に対し、前記二酸化チタン粉末を５．０〜１
５０重量部添加した特許請求の範囲第１項に示すコーテ
ィング材組成物。(2) Composition 1 containing organopolysiloxane as the main component
00 parts by weight, the titanium dioxide powder is added in an amount of 5.0 to 1
50 parts by weight of the coating material composition according to claim 1.
００重量部に対し、カーボンブラックを０．５〜５．０
重量部添加した特許請求の範囲第１項に示すコーティン
グ材組成物。(3) Composition 1 containing organopolysiloxane as the main component
0.5 to 5.0 parts by weight of carbon black
The coating material composition according to claim 1, in which part by weight is added.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29289786A JPS63145373A (en) | 1986-12-09 | 1986-12-09 | Coating material composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29289786A JPS63145373A (en) | 1986-12-09 | 1986-12-09 | Coating material composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63145373A true JPS63145373A (en) | 1988-06-17 |
| JPH0319274B2 JPH0319274B2 (en) | 1991-03-14 |
Family
ID=17787803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29289786A Granted JPS63145373A (en) | 1986-12-09 | 1986-12-09 | Coating material composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63145373A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024180900A1 (en) * | 2023-02-28 | 2024-09-06 | イビデン株式会社 | Bus bar, manufacturing method for bus bar, and power storage device |
-
1986
- 1986-12-09 JP JP29289786A patent/JPS63145373A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024180900A1 (en) * | 2023-02-28 | 2024-09-06 | イビデン株式会社 | Bus bar, manufacturing method for bus bar, and power storage device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0319274B2 (en) | 1991-03-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |