JPH07169325A - Conductive coating composition - Google Patents
Conductive coating compositionInfo
- Publication number
- JPH07169325A JPH07169325A JP5318268A JP31826893A JPH07169325A JP H07169325 A JPH07169325 A JP H07169325A JP 5318268 A JP5318268 A JP 5318268A JP 31826893 A JP31826893 A JP 31826893A JP H07169325 A JPH07169325 A JP H07169325A
- Authority
- JP
- Japan
- Prior art keywords
- conductive
- coating composition
- parts
- conductive coating
- weight
- 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.)
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Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、種々の環境条件下にお
いても導電性の低下の少ない優れた電磁波シールド性等
を有する導電性塗料組成物に関し、更に詳細には、ＯＡ
機器等のプラスチック筐体内部や電磁波シールドビルの
内壁の塗装等に利用可能な導電性塗料組成物に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a conductive coating composition having an excellent electromagnetic wave shielding property and the like in which the conductivity is less deteriorated even under various environmental conditions.
The present invention relates to a conductive coating composition that can be used for coating the inside of plastic casings of equipment and the like and the inner wall of an electromagnetic shield building.
【０００２】[0002]
【従来の技術】従来より電磁波シールド用導電性塗料
は、施工の手軽さや材料費及び加工費のトータルコスト
等の理由からメッキ、金属溶射、アルミ蒸着、金属箔貼
り付け等の代替として使用されている。2. Description of the Related Art Conventionally, conductive paints for electromagnetic wave shielding have been used as an alternative to plating, metal spraying, aluminum vapor deposition, metal foil sticking, etc. for reasons such as ease of construction and total cost of materials and processing. There is.
【０００３】電磁波シールド用導電性塗料に要求される
導電性は、１０0〜１０~2Ω・ｃｍであり、また組成と
しては、一般にニッケル、銅、導電性カーボン等の導電
性フィラーをアクリル、アクリル−ウレタン等のバイン
ダーに混合したものが使用されている。[0003] conductivity required to the conductive paint electromagnetic wave shield 10 0 is ~10 ~ 2 Ω · cm, and as the composition, generally acrylic nickel, copper, a conductive filler such as conductive carbon, A mixture of a binder such as acrylic-urethane is used.
【０００４】しかしながら、従来から使用される導電性
塗料は、電磁波シールド用として用いられるメッキ、金
属溶射、アルミ蒸着、金属箔貼り付け等に比べてその施
工の手軽さや材料費及び加工費のトータルコストの点で
優位であるが、その半面、ニッケルあるいは銅粉を使用
した導電性塗料においては、耐湿及び耐熱での経時変化
による導電性の低下が生じ、電磁波シールド性能が悪く
なるという問題がある。特に銅粉の場合は、銅粉表面の
酸化による導電性の低下が顕著であり、長期的な信頼性
の面での問題がある。また、ニッケルあるいは銅粉を使
用した導電性塗料においては長期的に貯蔵した場合、塗
料中でのフィラーのケ−キング等による問題が生じるた
め使用前によほど均一に撹拌して塗装しないと塗膜での
フィラーの濃度が不均一になり、導電性が目標値に達し
ないという問題がある。一方導電性カーボンを使用した
導電性塗料は、塗料中でのフィラーの分散安定性及び塗
膜の導電性の安定性は良いが、導電性カーボンのみでは
目標とする高い導電性が得られないという問題がある。
その対策として導電性カーボンに通常使用されている銀
粉を添加する方法がある。通常使用されている銀粉には
フレーク状の粉末が最も多いが、フレーク状の粉末を得
るための一般的な製造方法として、化学還元法で作った
銀粉を粉砕してフレーク化したものは、見掛密度が１〜
２ｇ／ｃｍ3、タップ密度２〜５ｇ／ｃｍ3と重い粉であ
り、通常の添加では、塗料固型分１００重量部に対して
５０重量部以上の添加が必要でコスト的に問題がある。However, the conductive paints used conventionally are less expensive to construct than the plating, metal spraying, aluminum vapor deposition, metal foil sticking, etc. used for electromagnetic wave shielding, and the total cost of materials and processing costs. However, on the other hand, in the case of a conductive coating material using nickel or copper powder, there is a problem that the electroconductivity is deteriorated due to a change with time due to humidity resistance and heat resistance, and electromagnetic wave shielding performance is deteriorated. In particular, in the case of copper powder, the decrease in conductivity due to the oxidation of the surface of the copper powder is remarkable, and there is a problem in terms of long-term reliability. Also, in the case of a conductive paint using nickel or copper powder, if it is stored for a long period of time, problems such as filler baking in the paint may occur, so paint should be applied with stirring as evenly as possible before use. There is a problem that the concentration of the filler becomes uneven and the conductivity does not reach the target value. On the other hand, conductive paints using conductive carbon have good dispersion stability of the filler in the paint and conductivity stability of the coating film, but it is not possible to obtain the target high conductivity with conductive carbon alone. There's a problem.
As a countermeasure, there is a method of adding silver powder which is usually used for conductive carbon. The most commonly used silver powder is flake powder, but as a general manufacturing method to obtain flake powder, silver powder made by chemical reduction method is crushed into flakes. Cover density is 1
2 g / cm 3, a heavy powder with a tap density of 2-5 g / cm 3, the conventional additives, a problem in need of cost is the addition of more than 50 parts by weight based on the paint solid content 100 parts by weight.
【０００５】[0005]
【発明が解決しようとする課題】本発明の目的は、高導
電性を示し、経時変化に伴う導電性の低下等が少ない高
信頼性を有する導電性塗料組成物を提供することにあ
る。SUMMARY OF THE INVENTION It is an object of the present invention to provide a highly conductive conductive coating composition which exhibits high conductivity and is less likely to decrease in conductivity due to aging.
【０００６】[0006]
【課題を解決するための手段】本発明によれば、導電性
カーボンとバインダーとを主成分とする導電性塗料組成
物において、比表面積０．５〜１．０ｍ2／ｇ、タップ
密度０．１８〜０．５ｇ／ｃｍ3、見掛け密度０．０２
〜０．２ｇ／ｃｍ3の箔片状銀粉からなる導電フィラー
を、塗料固形分１００重量部に対して５〜４０重量部含
有したことを特徴とする導電性塗料組成物が提供され
る。According to the present invention, a conductive coating composition containing conductive carbon and a binder as main components has a specific surface area of 0.5 to 1.0 m 2 / g and a tap density of 0.1. 18-0.5 g / cm 3 , apparent density 0.02
A conductive coating composition is characterized by containing 5 to 40 parts by weight of a conductive filler made of foil flaky silver powder of about 0.2 g / cm 3 with respect to 100 parts by weight of a coating solid content.
【０００７】以下本発明を更に詳細に説明する。The present invention will be described in more detail below.
【０００８】本発明の導電性塗料組成物において、主成
分を構成する導電性カーボンとしては、例えばアセチレ
ンブラック、ケッチンブラック等の通常の導電性カーボ
ン、グラファイト、炭素繊維等を好ましく挙げることが
できる。該導電性カーボンの粒径は１０〜１００μｍが
好ましい。粒径が１０μｍ未満では得られる塗膜の導電
性に問題が生じ、また１００μｍを超えると導電性カー
ボンの分散性に問題が生じるので好ましくない。また導
電性カーボンの比表面積は、１３００ｍ2／ｇ以下が好
ましい。比表面積が１３００ｍ2／ｇを超えると、吸油
量が大きくゲル化が生じ、塗料化が難しい等の問題が生
じるので好ましくない。In the conductive coating composition of the present invention, as the conductive carbon constituting the main component, for example, usual conductive carbon such as acetylene black and Ketchin black, graphite, carbon fiber and the like can be preferably mentioned. The particle size of the conductive carbon is preferably 10 to 100 μm. If the particle size is less than 10 μm, the resulting coating film has a problem in conductivity, and if it exceeds 100 μm, there is a problem in dispersibility of the conductive carbon, which is not preferable. The specific surface area of the conductive carbon is preferably 1300 m 2 / g or less. When the specific surface area exceeds 1300 m 2 / g, oil absorption is large and gelation occurs, which causes problems such as difficulty in forming a coating material, which is not preferable.
【０００９】本発明の導電性塗料組成物において、主成
分を構成するバインダーとしては、例えばアクリル樹
脂、アクリル−ウレタン樹脂、ウレタン樹脂、アルキッ
ド樹脂、エポキシ樹脂、メラミン樹脂、ポリエステル樹
脂、フェノール樹脂等の塗料用樹脂を好ましく挙げるこ
とができ、必要に応じて例えばイソシアネート、アミ
ン、オキサゾリン系等の硬化剤を含有させることもでき
る。塗料形態としては、通常の有機溶剤型塗料の他、水
溶性塗料あるいはエマルジョン塗料等が挙げられる。In the conductive coating composition of the present invention, examples of the binder that constitutes the main component include acrylic resin, acrylic-urethane resin, urethane resin, alkyd resin, epoxy resin, melamine resin, polyester resin, and phenol resin. Preferable examples are coating resins, and if necessary, a curing agent such as isocyanate, amine and oxazoline type can be contained. Examples of the paint form include water-soluble paints and emulsion paints as well as ordinary organic solvent-based paints.
【００１０】本発明において、前記主成分を構成する導
電性カーボン及びバインダーの合計料は、組成物中の塗
料固形分の５０重量％以上であれば良く、また導電性カ
ーボンとバインダーとの配合割合は、バインダー固型分
１００重量部に対して、導電性カーボン２０〜８５重量
部、特に３０〜７０重量部であるのが望ましい。導電性
カーボンの配合割合が２０重量部未満では、導電性とし
て要求される比抵抗値が得られず、また８５重量部を超
える場合は、塗料化が困難であるので好ましくない。In the present invention, the total amount of the conductive carbon constituting the main component and the binder may be 50% by weight or more of the coating solid content in the composition, and the mixing ratio of the conductive carbon and the binder. Is preferably 20 to 85 parts by weight of conductive carbon, more preferably 30 to 70 parts by weight, based on 100 parts by weight of the binder solid content. If the blending ratio of the conductive carbon is less than 20 parts by weight, the specific resistance value required for conductivity cannot be obtained, and if it exceeds 85 parts by weight, it is difficult to form a coating material, which is not preferable.
【００１１】本発明に用いる導電フィラーは、特定の箔
片状銀粉からなり、該特定の箔片状銀粉は、比表面積
０．５〜１．０ｍ2／ｇ、タップ密度０．１８〜０．５
ｇ／ｃｍ3、見掛け密度０．０２〜０．２ｇ／ｃｍ3であ
り、非常に崇高で、導電性塗料組成物の導電性を向上さ
せる材料である。前記比表面積が１．０ｍ2／ｇを超え
ると粉体の取扱いに問題が生じ、また０．５ｍ2／ｇ未
満では、スプレ−塗装において抵抗値が高くなる等の問
題がある。また前記タップ密度が０．１８ｇ／ｃｍ3未
満では、導電フィラーが塗膜中で粗に充填されて抵抗値
が高くなり、またボイドを包含しやすくなるという欠点
が生じ、０．５ｇ／ｃｍ3を超える場合には、導電フィ
ラーが塗膜中に高充填されるが、塗膜としての密着性が
劣るという問題が生じる。更に前記見掛け密度が０．０
２ｇ／ｃｍ3未満では、導電フィラーが塗膜中で粗に充
填されて抵抗値が高くなり、０．２ｇ／ｃｍ3を超える
場合には、導電フィラーが塗膜中に高充填されるが、塗
膜としての密着性が劣る問題がある。The conductive filler used in the present invention is made of a specific foil flaky silver powder, which has a specific surface area of 0.5 to 1.0 m 2 / g and a tap density of 0.18 to 0. 5
g / cm 3, an apparent density 0.02~0.2g / cm 3, a very noble, is a material for improving the conductivity of the conductive coating composition. If the specific surface area is more than 1.0 m 2 / g, handling of the powder will be problematic, and if it is less than 0.5 m 2 / g, there will be a problem that the resistance value will be high in spray coating. On the other hand, if the tap density is less than 0.18 g / cm 3 , the conductive filler is coarsely filled in the coating film to increase the resistance value, and voids are likely to be included, resulting in 0.5 g / cm 3 When it exceeds, the conductive filler is highly filled in the coating film, but there is a problem that the adhesiveness as a coating film is poor. Furthermore, the apparent density is 0.0
When it is less than 2 g / cm 3 , the conductive filler is coarsely filled in the coating film to increase the resistance value, and when it is more than 0.2 g / cm 3 , the conductive filler is highly filled in the coating film, There is a problem of poor adhesion as a coating film.
【００１２】前記導電フィラーを調製するには、例えば
厚み１μｍ以下の銀箔もしくは、銀箔屑を原料として、
これをボールミル、高速回転式カッターミル等で粉砕す
る方法等により得ることができる。また例えば商品名
「ＰＵＦＦ−ＳＩＬＶＥＲ−Ｘ−１２００」、「ＰＵＦ
Ｆ−ＳＩＬＶＥＲ−Ｘ−８００」（福田金属箔粉工業株
式会社製）等の市販品を使用することもできる。To prepare the conductive filler, for example, a silver foil having a thickness of 1 μm or less or a silver foil scrap is used as a raw material.
This can be obtained by a method such as crushing with a ball mill, a high speed rotary cutter mill or the like. Further, for example, product names “PUFF-SILVER-X-1200”, “PUF
Commercially available products such as "F-SILVER-X-800" (manufactured by Fukuda Metal Foil & Powder Co., Ltd.) can also be used.
【００１３】前記導電フィラーの配合割合は、導電性塗
料組成物中の塗料固形分１００重量部に対して５〜４０
重量部、好ましくは１０〜３０重量部である。配合量が
５重量部未満では、導電性として要求される比抵抗値が
得られず、また４０重量部を超える場合は、導電フィラ
ー同士の接触圧を高める役割をするバインダーの量が不
足し、逆に導電性が悪くなり、しかもコスト的にも問題
が生じる。The mixing ratio of the conductive filler is 5 to 40 with respect to 100 parts by weight of the coating solid content in the conductive coating composition.
Parts by weight, preferably 10 to 30 parts by weight. If the blending amount is less than 5 parts by weight, the specific resistance value required for the conductivity cannot be obtained, and if it exceeds 40 parts by weight, the amount of the binder that serves to increase the contact pressure between the conductive fillers is insufficient, On the contrary, the conductivity is deteriorated, and moreover, there is a problem in cost.
【００１４】本発明の塗料組成物を調製するには、例え
ば導電性カーボンを、商品名「ＢＹＫ−１６３」（ビッ
クケミー社製）、商品名「Disper Byk-101」、「Ｂｙｋ
−ｐ１０４」（ビック・マリンロット社製）、商品名
「ＫＳ−８６０」（楠本化学（株）製）、商品名「フロ
ーレンＧ−６００」（共栄社油脂化学工業（株）製）等
の市販品の分散剤により分散させた後、箔片状銀粉及び
バインダー成分を混合する方法等により得ることができ
る。この際分散剤固型分の配合割合は、導電性カーボン
１００重量部に対して、５〜１２重量部であるのが好ま
しい。In order to prepare the coating composition of the present invention, for example, conductive carbon is used under the trade names "BYK-163" (manufactured by BYK Chemie), trade names "Disper Byk-101", "Byk".
-P104 "(manufactured by Big Marine Lot), trade name" KS-860 "(manufactured by Kusumoto Chemical Co., Ltd.), trade name" Floren G-600 "(manufactured by Kyoeisha Yushi-Kagaku Kogyo KK) It can be obtained by a method in which the foil flaky silver powder and the binder component are mixed after being dispersed with the dispersant. At this time, the mixing ratio of the dispersant solid component is preferably 5 to 12 parts by weight with respect to 100 parts by weight of the conductive carbon.
【００１５】[0015]
【発明の効果】本発明の導電性塗料組成物は、非常に嵩
高の箔片状銀粉からなる導電フィラーを含有するので、
導電性カーボンとバインダーとを主成分とする導電性塗
料組成物において、通常の導電物質の添加割合を従来の
１／３〜１／６の量としても同等の導電性効果が得られ
る。従ってコスト的に優れており、また長期貯蔵安定性
が良好である。また塗装に際しては、スプレー、刷毛塗
り、アプリケーター、ロール等の種々な方法で、被塗物
に塗装することができる。種々の環境条件下において経
時的な導電性の低下が少ないので、特に電磁波シールド
用塗料等として有用である。Since the conductive coating composition of the present invention contains a conductive filler composed of a very bulky foil flaky silver powder,
In a conductive coating composition containing conductive carbon and a binder as main components, the same conductive effect can be obtained even when the addition ratio of a usual conductive substance is set to 1/3 to 1/6 of the conventional amount. Therefore, it is excellent in cost and has good long-term storage stability. Further, upon coating, the object to be coated can be coated by various methods such as spraying, brush coating, applicator, and roll. It is particularly useful as a coating material for electromagnetic wave shields, etc., since it has little decrease in conductivity over time under various environmental conditions.
【００１６】[0016]
【実施例】以下実施例及び比較例により更に詳細に説明
するが、本発明はこれらに限定されるものではない。
尚、例中の部は重量部を示す。EXAMPLES The present invention will be described in more detail with reference to Examples and Comparative Examples below, but the present invention is not limited thereto.
In addition, the part in an example shows a weight part.
【００１７】[0017]
【実施例１】市販の導電性カーボン（粒径２５μｍ、比
表面積５２０ｍ2／ｇ）１００部に分散剤（商品名「Ｂ
ＹＫ−１６３」、ビックケミー社製、不揮発分４５％）
２２部を加え、モ−タ−ミルを使用し３５００回転で１
５分間分散機にかけて充分に分散させた後、箔片状銀粉
（商品名「ＰＵＦＦ−ＳＩＬＶＥＲ−Ｘ−１２００」、
福田金属箔粉工業株式会社製、比表面積０．７５ｍ2／
ｇ，タップ密度０．２７ｇ／ｃｍ3、見掛け密度０．１
６ｇ／ｃｍ3）３０部、熱硬化性アクリル樹脂（商品名
「ハイウレタン５０００」日本油脂株式会社製、不揮発
分６０％）２５０部及びキシロール１７０部、２−メト
キシプロピルアセテート１５０部を加え撹拌機で充分混
合させ導電性塗料組成物を得た。得られた導電性塗料組
成物中の各組成の特性及び混合比率を表１に示す。Example 1 100 parts of commercially available conductive carbon (particle size: 25 μm, specific surface area: 520 m 2 / g) was added to a dispersant (trade name “B”).
YK-163 ", manufactured by Big Chemie, nonvolatile content 45%)
Add 22 parts and use a motor mill to make 1 at 3500 rpm.
After thoroughly applying a dispersing machine for 5 minutes to disperse the foil flaky silver powder (trade name "PUFF-SILVER-X-1200",
Made by Fukuda Metal Foil & Powder Co., Ltd., specific surface area 0.75m 2 /
g, tap density 0.27 g / cm 3 , apparent density 0.1
6 g / cm 3 ) 30 parts, thermosetting acrylic resin (trade name “High Urethane 5000” manufactured by NOF CORPORATION, nonvolatile content 60%) 250 parts, xylol 170 parts, 2-methoxypropyl acetate 150 parts, and a stirrer. To obtain a conductive coating composition. Table 1 shows the characteristics and mixing ratio of each composition in the obtained conductive coating composition.
【００１８】つぎに得られた導電性塗料組成物１００部
とウレタン硬化剤（商品名「ハイウレタン硬化剤ＨＦ」
日本油脂株式会社製、不揮発分７５％）２２部とを混合
後、アプリケーターでガラスエポキシ基板に巾２０ｍ
ｍ、長さ１００ｍｍの抵抗値測定用パタ−ンを塗装した
後、６０℃で３０分間乾燥させて試験片を調製した。得
られた試験片の硬化塗膜について、４端子式表面抵抗計
（三菱油化株式会社製）で初期抵抗値を測定し、また膜
厚を測定して体積比抵抗値を算出した。また、耐湿性を
評価するために５０℃、９５％ＲＨの試験条件で５００
時間試験片を保持した後、同様に比抵抗値を算出した。
更に耐熱性を評価するために８５℃で５００時間試験片
を保持した後、同様に比抵抗値を算出した。次に、シー
ルド特性を調べるために、２００×２００ｍｍのガラス
エポキシ基板に前記塗料組成物をアプリケーターで塗装
し、アドバンテスト法によりスペクトラム・アナライザ
ーを用いて電磁波シールド効果の測定を行った。また２
０℃室温で３カ月間放置後の塗料中のフィラーの貯蔵安
定性について調べた。これらの測定結果を表２に示す。Next, 100 parts of the conductive coating composition obtained and a urethane curing agent (trade name "high urethane curing agent HF")
22 parts by non-volatile content 75% manufactured by Nippon Oil & Fats Co., Ltd., and then 20m wide on a glass epoxy substrate with an applicator.
A test piece was prepared by coating a resistance value measuring pattern having a length of m and a length of 100 mm, followed by drying at 60 ° C. for 30 minutes. With respect to the cured coating film of the obtained test piece, the initial resistance value was measured with a 4-terminal surface resistance meter (manufactured by Mitsubishi Petrochemical Co., Ltd.), and the film thickness was measured to calculate the volume specific resistance value. In addition, in order to evaluate the humidity resistance, 500 at a test condition of 50 ° C and 95% RH.
After holding the test piece for a period of time, the specific resistance value was calculated in the same manner.
Further, in order to evaluate the heat resistance, after holding the test piece at 85 ° C. for 500 hours, the specific resistance value was calculated in the same manner. Next, in order to examine the shield characteristics, the coating composition was applied to a 200 × 200 mm glass epoxy substrate with an applicator, and the electromagnetic wave shielding effect was measured by a spectrum analyzer by the Advantest method. Again 2
The storage stability of the filler in the paint after standing at 0 ° C. room temperature for 3 months was examined. The results of these measurements are shown in Table 2.
【００１９】[0019]
【実施例２】実施例１と同一の市販の導電性カーボン１
００部に分散剤（商品名「Ｄｉｓｐｅｒｂｙｋ−１０
１」、ビック・マリンロット社製、不揮発分５２％）２
０部を加え、実施例１と同じ分散方法で分散させた後、
箔片状銀粉（商品名「ＰＵＦＦ−ＳＩＬＶＥＲ−Ｘ−８
００」、福田金属箔粉工業株式会社製、比表面積０．７
０ｍ2／ｇ，タップ密度０．２３ｇ／ｃｍ3、見掛け密度
０．１３ｇ／ｃｍ3）３５部、常温乾燥型アクリルエマ
ルジョン樹脂（商品名「ボンコ−トＥＣ−１２１」、大
日本インキ化学工業株式会社製、不揮発分５０％）２５
０部及び脱イオン水２００部を加え撹拌機で充分混合さ
せて導電性塗料組成物を得た。得られた導電性塗料組成
物中の各組成の特性及び混合比率を表１に示す。Example 2 Commercially available conductive carbon 1 identical to Example 1
Dispersing agent (trade name "Disperbyk-10
1 ", manufactured by Big Marine Lot Co., Ltd., nonvolatile content 52%) 2
After adding 0 parts and dispersing by the same dispersing method as in Example 1,
Flake-shaped silver powder (trade name "PUFF-SILVER-X-8
00 ”, manufactured by Fukuda Metal Foil & Powder Co., Ltd., specific surface area 0.7
0 m 2 / g, tap density 0.23 g / cm 3 , apparent density 0.13 g / cm 3 ) 35 parts, room temperature dry type acrylic emulsion resin (trade name “Boncoat EC-121”, Dainippon Ink and Chemicals Co., Ltd. stock) Company-made, non-volatile content 50%) 25
0 part and 200 parts of deionized water were added and thoroughly mixed with a stirrer to obtain a conductive coating composition. Table 1 shows the characteristics and mixing ratio of each composition in the obtained conductive coating composition.
【００２０】次いで得られた導電性塗料組成物を用いて
実施例１と同様に試験片を作成し、同様な測定を行なっ
た。結果を表２に示す。Then, using the obtained conductive coating composition, a test piece was prepared in the same manner as in Example 1 and the same measurement was carried out. The results are shown in Table 2.
【００２１】[0021]
【実施例３】実施例２で使用した常温乾燥型アクリルエ
マルジョン樹脂の代わりに、強制乾燥型水溶性アクリル
樹脂（スチレン／アクリル酸／メチルメタクリレート／
ブチルメタクリレート（ＢＭＡ）：３０／１０．８０／
１．９８／５７．２２、ガラス転移温度５０℃、酸価８
４．１、水酸基価０、不揮発分５５％）２５０部を用
い、ブチルセロソルブ１００部及び脱イオン水５０部を
加えた以外は実施例２と同様に導電性塗料組成物を調製
した。得られた導電性塗料組成物中の各組成の特性及び
混合比率を表１に示す。Example 3 Instead of the room temperature dry type acrylic emulsion resin used in Example 2, a forced dry type water-soluble acrylic resin (styrene / acrylic acid / methyl methacrylate /
Butyl methacrylate (BMA): 30 / 10.80 /
1.98 / 57.22, glass transition temperature 50 ° C, acid value 8
A conductive coating composition was prepared in the same manner as in Example 2 except that 250 parts of 4.1, hydroxyl value of 0 and non-volatile content of 55%) were used, and 100 parts of butyl cellosolve and 50 parts of deionized water were added. Table 1 shows the characteristics and mixing ratio of each composition in the obtained conductive coating composition.
【００２２】次いで得られた導電性塗料組成物１００部
とオキサゾリン系硬化剤（商品名「Ｋ−１０２０Ｅ」、
日本触媒化学工業株式会社製）１０部とを混合後、実施
例１と同様にアプリケーターでガラスエポキシ基板に測
定用パタ−ンを塗装し、８０℃で３０分間乾燥させて試
験片を作成した後、各測定を行なった。結果を表２に示
す。Next, 100 parts of the obtained conductive coating composition and an oxazoline-based curing agent (trade name "K-1020E",
After mixing with 10 parts of Nippon Shokubai Kagaku Kogyo Co., Ltd., a glass epoxy substrate was coated with a measuring pattern with an applicator in the same manner as in Example 1, and dried at 80 ° C. for 30 minutes to prepare a test piece. , Each measurement was performed. The results are shown in Table 2.
【００２３】[0023]
【実施例４〜６及び比較例１〜３】表１に示す組成の導
電性塗料組成物を実施例１と同様に作成し、各測定を行
なった。得られた導電性塗料組成物中の各組成の特性及
び混合比率を表１に、測定結果を表２に示す。Examples 4 to 6 and Comparative Examples 1 to 3 Conductive coating compositions having the compositions shown in Table 1 were prepared in the same manner as in Example 1 and each measurement was performed. The characteristics and mixing ratio of each composition in the obtained conductive coating composition are shown in Table 1, and the measurement results are shown in Table 2.
【００２４】[0024]
【表１】 [Table 1]
【００２５】[0025]
【表２】 [Table 2]
Claims (1)
とする導電性塗料組成物において、比表面積０．５〜
１．０ｍ2／ｇ、タップ密度０．１８〜０．５ｇ／ｃ
ｍ3、見掛け密度０．０２〜０．２ｇ／ｃｍ3の箔片状銀
粉からなる導電フィラーを、塗料固形分１００重量部に
対して５〜４０重量部含有したことを特徴とする導電性
塗料組成物。1. A conductive coating composition containing conductive carbon and a binder as main components, wherein a specific surface area of 0.5 to
1.0 m 2 / g, tap density 0.18 to 0.5 g / c
m 3, an apparent density of 0.02~0.2g / cm 3 of a conductive filler consisting of a foil strip-like silver powder, conductive coating, characterized in that contained 5 to 40 parts by weight relative to solid content 100 parts by weight Composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5318268A JPH07169325A (en) | 1993-12-17 | 1993-12-17 | Conductive coating composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5318268A JPH07169325A (en) | 1993-12-17 | 1993-12-17 | Conductive coating composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07169325A true JPH07169325A (en) | 1995-07-04 |
Family
ID=18097308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5318268A Pending JPH07169325A (en) | 1993-12-17 | 1993-12-17 | Conductive coating composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07169325A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004027087A (en) * | 2002-06-27 | 2004-01-29 | Shin Etsu Chem Co Ltd | Conductive silicone rubber composition and conductive member |
| WO2005052080A1 (en) * | 2003-11-25 | 2005-06-09 | Aica Kogyo Co.,Ltd. | Electromagnetic wave shielding water-base paint and basket obtainable therewith |
| KR100803256B1 (en) * | 2007-06-05 | 2008-02-13 | (주)하우켐 | Coating composition for intercepting the light and shielding electric wave at the same time |
| US7345105B2 (en) | 2002-12-20 | 2008-03-18 | Shin-Etsu Chemical Co., Ltd. | Conductive adhesive composition |
-
1993
- 1993-12-17 JP JP5318268A patent/JPH07169325A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004027087A (en) * | 2002-06-27 | 2004-01-29 | Shin Etsu Chem Co Ltd | Conductive silicone rubber composition and conductive member |
| US7345105B2 (en) | 2002-12-20 | 2008-03-18 | Shin-Etsu Chemical Co., Ltd. | Conductive adhesive composition |
| WO2005052080A1 (en) * | 2003-11-25 | 2005-06-09 | Aica Kogyo Co.,Ltd. | Electromagnetic wave shielding water-base paint and basket obtainable therewith |
| KR100803256B1 (en) * | 2007-06-05 | 2008-02-13 | (주)하우켐 | Coating composition for intercepting the light and shielding electric wave at the same time |
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