JPS6234968A - Carbon paste of high resistance - Google Patents

Carbon paste of high resistance

Info

Publication number
JPS6234968A
JPS6234968A JP60172487A JP17248785A JPS6234968A JP S6234968 A JPS6234968 A JP S6234968A JP 60172487 A JP60172487 A JP 60172487A JP 17248785 A JP17248785 A JP 17248785A JP S6234968 A JPS6234968 A JP S6234968A
Authority
JP
Japan
Prior art keywords
carbon black
carbon
binder
solvent
carbon paste
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.)
Pending
Application number
JP60172487A
Other languages
Japanese (ja)
Inventor
Kazuyoshi Tsuruta
鶴田 和義
Yuji Miyazaki
宮崎 祐治
Akio Nishijima
西島 昭夫
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.)
Denka Co Ltd
Original Assignee
Denki Kagaku Kogyo KK
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 Denki Kagaku Kogyo KK filed Critical Denki Kagaku Kogyo KK
Priority to JP60172487A priority Critical patent/JPS6234968A/en
Publication of JPS6234968A publication Critical patent/JPS6234968A/en
Pending legal-status Critical Current

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  • Conductive Materials (AREA)
  • Paints Or Removers (AREA)

Abstract

PURPOSE:The titled carbon paste, consisting of specific carbon black, binder and solvent and having improved dispersibility of the carbon black and stable resistance value. CONSTITUTION:A carbon paste obtained by incorporating (A) carbon black having <=0.2OMEGA.cm electric specific resistance under 112kg/cm<2> pressure, 40-80m<2>/g specific surface area, 50-90mg/g iodine absorption and 5-10ml/5g chlorine absorption, with (B) a binder e.g. quick-drying acrylic resin, and (C) a solvent, e.g. toluene or butanol. The amount of the component (A) to be incorporated is preferably 5-100pts.wt. based on 100pts.wt. component (B).

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は高抵抗カーボンペーストに関する。[Detailed description of the invention] (Industrial application field) The present invention relates to a high resistance carbon paste.

(従来の技術) 従来、高抵抗カーボンペーストは、一般に、導電性カー
ビンブラック、バインダー、溶剤及び添加剤等で構成さ
れており、その導電性カーボンブラックとしては、市販
アセチレンブラック、ファーネスブラック、副生ブラッ
ク等が使用されている。
(Prior art) Conventionally, high-resistance carbon paste is generally composed of conductive carbine black, a binder, a solvent, additives, etc. As the conductive carbon black, commercially available acetylene black, furnace black, by-product Black etc. are used.

高抵抗カーボンペーストの要求される導電性範囲が10
9〜106Ω・儂であるため、導電性カーボンブラック
の添加量をかなり少なくする必要がある。そのためにバ
インダーの硬化や溶剤の蒸発の際にカーボンブラックの
分散状態が悪くなり、抵抗値がパラツクなどの欠点がめ
った。すなわち、第1表に従来の導電性カーボンブラッ
クの物性を示したが、これらのものを低添加量で配合す
ると、いずれも抵抗値の安定したものを得ることは困難
であった。
The required conductivity range of high resistance carbon paste is 10
Since the resistance is 9 to 10 6 Ω·min, it is necessary to considerably reduce the amount of conductive carbon black added. As a result, the dispersion state of carbon black deteriorated during binder curing and solvent evaporation, resulting in frequent defects such as a resistance value becoming uneven. That is, Table 1 shows the physical properties of conventional conductive carbon blacks, but when these materials are added in low amounts, it is difficult to obtain stable resistance values.

(発明が解決しようとする問題点) カーボンブラックの分散性を改良し、安定した抵抗値を
もつ高抵抗カーボンペーストを得ることが本発明の目的
である。
(Problems to be Solved by the Invention) It is an object of the present invention to improve the dispersibility of carbon black and obtain a high-resistance carbon paste having a stable resistance value.

(問題点を解決するための手段) 本発明は、112kN−加圧下の電気比抵抗0.200
・偏以下、比表面積40〜80 m”/E! 、沃素吸
着量50〜90〜り及び塩酸吸液量5〜1011141
5.@のカーボンブラック、バインダー及び溶剤を含有
してなる高抵抗カーボンペーストである。
(Means for solving the problem) The present invention has an electrical specific resistance of 0.200 under 112 kN pressure.
- Specific surface area 40-80 m"/E!, iodine adsorption amount 50-90 m"/E!, hydrochloric acid absorption amount 5-1011141
5. This is a high-resistance carbon paste containing @ carbon black, a binder, and a solvent.

以下さらに本発明について詳しく説明する。The present invention will be further explained in detail below.

本発明で用いるカーボンブラックは従来の導電性カーボ
ンブラックに比べてかなり異なる性状を持つものである
。すなわち、塩酸吸液量が極端に低いため、高抵抗であ
り、カーボンブラックの添加量を増し106〜109Ω
・儂領域で安定した抵抗値を得ることができるものであ
る。これによって、バインダーの硬化や溶剤の蒸発の際
にカーボンブラックの分散不良を起こすことがないので
、抵抗値のバラツキの少ない安定した抵抗体を得ること
ができる。
The carbon black used in the present invention has properties that are considerably different from those of conventional conductive carbon black. In other words, since the amount of hydrochloric acid absorbed is extremely low, the resistance is high, and by increasing the amount of carbon black added,
・It is possible to obtain a stable resistance value in my area. As a result, poor dispersion of carbon black does not occur during hardening of the binder or evaporation of the solvent, so a stable resistor with less variation in resistance value can be obtained.

本発明において、カーボンシラツクの物性を以上のよう
に限定した理由は次の通りである。
In the present invention, the reason why the physical properties of carbon silk are limited as described above is as follows.

Q 112 kll/cm”加圧下の電気比抵抗が0.20
 ’l”cmをこえ、比表面積が40 m”/g未満、
沃素吸着量が50 m9/9未満及び塩酸吸液量5m1
7511未満では、導電性付与能力が十分でなくなる。
Q 112 kll/cm” Electrical resistivity under pressure is 0.20
more than 'l" cm, specific surface area less than 40 m"/g,
Iodine adsorption amount is less than 50 m9/9 and hydrochloric acid absorption amount is 5 m1
If it is less than 7511, the ability to impart electrical conductivity will not be sufficient.

また、比表面積が80 m”/gをこえ、沃素吸着量が
90111をこえ、塩酸吸液量が1011715.!i
+をこえるようになると、バインダーと溶剤に配合して
カーボンペーストを製造する際、その流動性が悪くなり
、かつ、安定した抵抗値のものを得ることが困難となる
In addition, the specific surface area exceeds 80 m''/g, the iodine adsorption amount exceeds 90111, and the hydrochloric acid absorption amount exceeds 1011715.!i
If it exceeds +, the fluidity becomes poor when a carbon paste is produced by mixing it with a binder and a solvent, and it becomes difficult to obtain a stable resistance value.

本発明に係るカーボンブラックは、例えば次のようKし
て製造することができる。すなわち、分子中に炭素を結
合した有機高分子物質及び/又は瀝育物と、ボールミル
、振動ミル等の粉砕機で粉砕したものあるいは未粉砕の
アセチレンブラックとの混合物を、500〜800℃程
度の不活性ガス算囲気下で熱処理すればよい。このよう
にして製造されたカーボンブラックは、前記した物性を
有すると共に不純物が極めて少ないという利点を有する
The carbon black according to the present invention can be produced, for example, as follows. That is, a mixture of an organic polymer substance and/or a fermented material having carbon bonded in its molecules and acetylene black that has been ground using a grinder such as a ball mill or a vibration mill, or unpulverized acetylene black, is heated at about 500 to 800°C. Heat treatment may be performed under an atmosphere of inert gas. The carbon black produced in this manner has the above-mentioned physical properties and has the advantage of having extremely few impurities.

本発明の高抵抗カーぜンペーストは、バインター及び溶
剤と共に上記のカーボンシラツクを含み、さらに必要に
より各種添加剤例えば分散剤、沈降防止剤、滑剤などを
含有したものであって、それらの配合成分は、アトライ
ター、サンドミル、ロールミル、ボールミルなどで混合
される。
The high-resistance casten paste of the present invention contains the above-mentioned carbon silk together with a binder and a solvent, and further contains various additives such as a dispersant, an anti-settling agent, a lubricant, etc., as necessary. is mixed in an attritor, sand mill, roll mill, ball mill, etc.

カーボンブラックの配合割合は、バインダー100重量
部に対し、5〜100重量部の割合であることが好まし
い。5重量部未満では抵抗値のバラツキが大きくなり、
また、100重量部をこえると抵抗値は安定するがカー
ざンペーストの粘度が大きくなり均一な皮膜状の抵抗体
を得ることが困難となる。
The blending ratio of carbon black is preferably 5 to 100 parts by weight based on 100 parts by weight of the binder. If it is less than 5 parts by weight, the resistance value will vary greatly,
If the amount exceeds 100 parts by weight, the resistance value will be stabilized, but the viscosity of the Kazan paste will increase, making it difficult to obtain a uniform film-like resistor.

バインタ9−とじては、被着体の種類や乾燥条件に応じ
てその種類を選定されなげればならないtζ速乾性のア
クリル樹脂、ビニル樹脂、イム系のものから2液型のア
クリル変性ポリウレタン樹脂、エポキシポリアミP樹脂
、シリコーンイムなどが使われる。
The type of binder 9 must be selected depending on the type of adherend and drying conditions.Tζ Quick-drying acrylic resin, vinyl resin, im-based resin, or two-component acrylic modified polyurethane resin. , epoxy polyamide P resin, silicone im, etc. are used.

溶剤は、バインダーの種類に応じて樹脂の溶解性のある
ものが選定される。貧溶解性のものはバインダーの凝集
までひき起こし、抵抗値に悪影響を与える。これらのこ
とを配慮すると、トルエン、キシレン、ブタノール、メ
チルエチルクトン、メチル−イソブチルケトン、シクロ
ヘキサンなどの溶剤が好適である。溶剤の添加量は、カ
ーボンペーストの塗布作業性の点を配慮して決定する必
要がめる。
A solvent that can dissolve the resin is selected depending on the type of binder. Poorly soluble binders cause aggregation of the binder, which adversely affects the resistance value. Taking these matters into consideration, solvents such as toluene, xylene, butanol, methyl ethyl lactone, methyl isobutyl ketone, and cyclohexane are suitable. The amount of solvent added needs to be determined with consideration to the workability of applying the carbon paste.

添加剤として、フィラーの分散性を良くする分散剤とし
ては、脂肪酸アミド系、エステル系、アルコール系、金
属石鹸、大豆レシチン等が使われる。
As an additive, a fatty acid amide type, ester type, alcohol type, metal soap, soybean lecithin, etc. are used as a dispersing agent that improves the dispersibility of the filler.

以下、実施例をあげてさらに詳しく説明する。Hereinafter, the present invention will be explained in more detail with reference to examples.

(実施例) カーがンブラックの製造 塩化ビニル樹脂(電気化学工業■製:商品名「デンカビ
ニール5s−10DB J 40重量部、アセチレンブ
ラック(電気化学工業■製:商品名「デンカブラック」
)をが−ルミルにて3時間粉砕したもの100重量部及
び水120重量部を容量10ノのヘンシェルミキサーに
より、混合・造粒し乾燥して造粒物とした。
(Example) Production of Cargan Black Vinyl chloride resin (manufactured by Denki Kagaku Kogyo ■: trade name: Denka Vinyl 5s-10DB J 40 parts by weight, acetylene black (manufactured by Denki Kagaku Kogyo ■: trade name: "Denka Black")
) was pulverized for 3 hours in a galmill, 100 parts by weight and 120 parts by weight of water were mixed and granulated using a Henschel mixer with a capacity of 10 mm, and dried to obtain a granulated product.

これを600’0の温度に保持したN2ガス雰囲気下の
炉内へ供給し1時間焼成して熱分解炭素粉末110重量
部を得て本発明に係るカーボンブラックとした。この物
性を第1表に示す。
This was fed into a furnace under an N2 gas atmosphere maintained at a temperature of 600'0 and fired for 1 hour to obtain 110 parts by weight of pyrolytic carbon powder, which was used as carbon black according to the present invention. The physical properties are shown in Table 1.

第  1  表 メタクリル酸メチル(住人化学■製)18重量部、スチ
レン(11!気化学工業■j!!り20重量部、アクリ
ル酸ゾチル(三菱油化■製)52重量部、アクリル酸(
三菱油化■製)10重量部、トルエン(三井コークス■
製)100重量部、n −f fiノール(協和油化■
製)100重量部の混合物にアゾ♂スイソゾチロニトリ
ル(大塚化学■製;商品名rA−BN、J )1重量部
を加え、窒素雰囲気中80℃で5時間、加熱下反応させ
て重合反応を完結した(単量体の反応率99%)。
Table 1: 18 parts by weight of methyl methacrylate (manufactured by Sumima Kagaku ■), 20 parts by weight of styrene (11!Ki Kagaku Kogyo ■j!!ri), 52 parts by weight of zotyl acrylate (manufactured by Mitsubishi Yuka ■), acrylic acid (manufactured by Mitsubishi Yuka ■).
Mitsubishi Yuka ■) 10 parts by weight, toluene (Mitsui Coke ■)
(manufactured by Kyowa Yuka), 100 parts by weight, n-f finol (Kyowa Yuka ■)
1 part by weight of azo♂sisozothyronitrile (manufactured by Otsuka Chemical Ltd.; trade name: rA-BN, J) was added to a mixture of 100 parts by weight (manufactured by Otsuka Chemical Ltd.), and the mixture was reacted under heating at 80°C for 5 hours in a nitrogen atmosphere to cause a polymerization reaction. was completed (monomer reaction rate 99%).

次に、このカーボンペーストを2()+i+X70gm
X2mK成型したABS製平板(電気化学工業■製;商
品名r()R−4000J)上に一定厚み0.05關に
施し、その後24時間自然乾燥した。この成型物の性能
を評価した。
Next, add this carbon paste to 2()+i+X70gm
It was applied to a constant thickness of 0.05 mm on an ABS flat plate (manufactured by Denki Kagaku Kogyo ■; trade name: r()R-4000J) that had been molded by X2mK, and then air-dried for 24 hours. The performance of this molded product was evaluated.

(比較例) カーざンデラックとして、市販アセチレンブラック及び
副生カーがンブラックを用い、第2表の配合でカーボン
ペーストを実施例と同様に製造して評価した。
(Comparative Example) Commercially available acetylene black and by-product carbon black were used as car sanderac, and carbon pastes were produced and evaluated in the same manner as in the examples with the formulations shown in Table 2.

これらの結果を第2表に示す。These results are shown in Table 2.

なお、第1表の物性値測定法と第2表の物性評価法は次
によった。
The physical property measurement method in Table 1 and the physical property evaluation method in Table 2 were as follows.

(1)  112KVan”加圧下の電気比抵抗: J
xsx−1469(2)比表面積:カンタソーゾ法(窒
素ガス使用)(3)沃素吸着量: JISK−1469
(4)  塩酸吸液量: 、rIsx−1469(5)
ペーストの粘度二B型粘度計による。
(1) Electrical specific resistance under 112KVan” pressure: J
xsx-1469 (2) Specific surface area: Cantasso method (using nitrogen gas) (3) Iodine adsorption amount: JISK-1469
(4) Hydrochloric acid absorption amount: , rIsx-1469 (5)
Viscosity of paste: Measured using a Type 2 B viscometer.

(6)体積固有抵抗;寸法70X20X肌05tsz(
zxsxw)の塗面についてマルチメーター(タケダ理
研■製)でその抵抗を測定し次式により体積固有抵抗を
算出した。
(6) Volume resistivity; dimensions 70X20X skin 05tsz (
zxsxw) was measured with a multimeter (manufactured by Takeda Riken ■), and the volume resistivity was calculated using the following formula.

但し、RV:体積固有抵抗(Ω−ctn)R:抵抗値(
Ω) (発明の効果) 本発明の高抵抗カーボンペーストは、従来品に比べて、
高抵抗となり、しかも抵抗値のバラツキが少ないもので
ある。
However, RV: Volume specific resistance (Ω-ctn) R: Resistance value (
Ω) (Effects of the invention) Compared to conventional products, the high resistance carbon paste of the present invention has
It has high resistance and has little variation in resistance value.

Claims (1)

【特許請求の範囲】[Claims] 1、112kg/cm^2加圧下の電気比抵抗0.2Ω
・cm以下、比表面積40〜80m^2/g、沃素吸着
量50〜90mg/g及び塩酸吸液量5〜10ml/5
gのカーボンブラック、バインダー及び溶剤を含有して
なる高抵抗カーボンペースト。
1. Electrical specific resistance under pressure of 112kg/cm^2 0.2Ω
・cm or less, specific surface area 40-80 m^2/g, iodine adsorption amount 50-90 mg/g, and hydrochloric acid absorption amount 5-10 ml/5
A high-resistance carbon paste containing g carbon black, a binder and a solvent.
JP60172487A 1985-08-07 1985-08-07 Carbon paste of high resistance Pending JPS6234968A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP60172487A JPS6234968A (en) 1985-08-07 1985-08-07 Carbon paste of high resistance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60172487A JPS6234968A (en) 1985-08-07 1985-08-07 Carbon paste of high resistance

Publications (1)

Publication Number Publication Date
JPS6234968A true JPS6234968A (en) 1987-02-14

Family

ID=15942894

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60172487A Pending JPS6234968A (en) 1985-08-07 1985-08-07 Carbon paste of high resistance

Country Status (1)

Country Link
JP (1) JPS6234968A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0617984A1 (en) * 1993-03-16 1994-10-05 MOTODA ELECTRONICS Co., Ltd. Methods for dechlorination disposal of polyvinyl chloride wastes and apparatus thereof
JP2009140821A (en) * 2007-12-07 2009-06-25 Honda Motor Co Ltd Sealing material for polymer electrolyte fuel cell separator, separator seal, and separator
JP2011228308A (en) * 2005-07-06 2011-11-10 Suntech Co Ltd Method of manufacturing planar heating element, and planar heating element manufactured by the same
US8133949B2 (en) 2007-12-07 2012-03-13 Honda Motor Co., Ltd. Separator and separator seal for polymer electrolyte fuel cells
US11706972B2 (en) * 2015-09-08 2023-07-18 Universal Display Corporation Organic electroluminescent materials and devices

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0617984A1 (en) * 1993-03-16 1994-10-05 MOTODA ELECTRONICS Co., Ltd. Methods for dechlorination disposal of polyvinyl chloride wastes and apparatus thereof
JP2011228308A (en) * 2005-07-06 2011-11-10 Suntech Co Ltd Method of manufacturing planar heating element, and planar heating element manufactured by the same
JP2009140821A (en) * 2007-12-07 2009-06-25 Honda Motor Co Ltd Sealing material for polymer electrolyte fuel cell separator, separator seal, and separator
US8133949B2 (en) 2007-12-07 2012-03-13 Honda Motor Co., Ltd. Separator and separator seal for polymer electrolyte fuel cells
US8795920B2 (en) 2007-12-07 2014-08-05 Honda Motor Co., Ltd. Separator and separator seal for polymer electrolyte fuel cells
US11706972B2 (en) * 2015-09-08 2023-07-18 Universal Display Corporation Organic electroluminescent materials and devices

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