JP2000281933A - Carbon black and its preparation and electrically- conductive composition - Google Patents
Carbon black and its preparation and electrically- conductive compositionInfo
- Publication number
- JP2000281933A JP2000281933A JP8666199A JP8666199A JP2000281933A JP 2000281933 A JP2000281933 A JP 2000281933A JP 8666199 A JP8666199 A JP 8666199A JP 8666199 A JP8666199 A JP 8666199A JP 2000281933 A JP2000281933 A JP 2000281933A
- Authority
- JP
- Japan
- Prior art keywords
- carbon black
- boron
- resin
- present
- rubber
- 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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Links
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ホウ素固溶のカー
ボンブラックとその製造方法、並びに導電性組成物に関
するものである。The present invention relates to a boron-dissolved carbon black, a method for producing the same, and a conductive composition.
【０００２】[0002]
【従来の技術】従来から、カーボンブラック等の導電性
物質をゴム・樹脂・塗料に含有させることが行われてお
り、そのカーボンブラックについては、より高導電性を
付与するために、比表面積の大きなものが使用されてい
る。2. Description of the Related Art Conventionally, conductive substances such as carbon black have been included in rubbers, resins and paints, and the carbon black has a specific surface area in order to impart higher conductivity. Large ones are used.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、高比表
面積のカーボンブラックは、ゴム・樹脂・塗料と混合し
た場合、混合量の増大に伴って粘度が著しく上昇し、混
練時の作業性や取り扱い性が低下するので、混合量を増
やして更に導電性を向上するには限度があった。However, when carbon black having a high specific surface area is mixed with a rubber, a resin or a coating material, the viscosity increases significantly with an increase in the amount of carbon black, and the workability and handling during kneading are increased. Therefore, there is a limit in increasing the mixing amount and further improving the conductivity.
【０００４】本発明は、上記に鑑みてなされたものであ
り、その目的は、導電性付与効果が大であり、ゴム・樹
脂・塗料多量混合しても従来の高比表面積カーボンブラ
ックほどには粘度が上昇しないカーボンブラックとその
製造方法、並びに導電性組成物を提供することである。The present invention has been made in view of the above, and has as its object the purpose of providing a large conductivity-imparting effect, and having the same effect as the conventional high specific surface area carbon black even when a large amount of rubber, resin or paint is mixed. An object of the present invention is to provide a carbon black whose viscosity does not increase, a method for producing the same, and a conductive composition.
【０００５】[0005]
【課題を解決するための手段】すなわち、本発明は、Ｊ
ＩＳ Ｋ １４６９による電気抵抗率が０．１０Ωｃｍ
以下であることを特徴とするホウ素固溶のカーボンブラ
ックである。また、本発明は、炭化水素の熱分解反応時
及び／又は燃焼反応時にホウ素源を存在させることを特
徴とするホウ素固溶カーボンブラックの製造方法であ
り、特に炭化水素がアセチレン、ホウ素源が有機ホウ素
化合物であることを特徴とするカーボンブラックの製造
方法である。更に、本発明は、樹脂、ゴム又は塗料に上
記カーボンブラックを含有させてなることを特徴とする
導電性組成物である。That is, the present invention relates to
Electrical resistivity according to IS K 1469 is 0.10Ωcm
It is a boron-dissolved carbon black characterized by the following. The present invention also relates to a method for producing a boron-dissolved carbon black, wherein a boron source is present at the time of a thermal decomposition reaction and / or a combustion reaction of hydrocarbons. In particular, the hydrocarbon is acetylene, and the boron source is organic. A method for producing carbon black, which is a boron compound. Further, the present invention is a conductive composition comprising the above-mentioned carbon black in a resin, rubber or paint.
【０００６】[0006]
【発明の実施の形態】以下、本発明について更に詳しく
説明する。BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in more detail.
【０００７】本発明のカーボンブラックは、ホウ素を固
溶してなり、ＪＩＳ Ｋ １４６９に従って測定された
電気抵抗率が０．１０Ωｃｍ以下のカーボンブラックで
ある。電気抵抗率が０．１０Ωｃｍよりも大きいと、樹
脂、ゴム又は塗料に含有させても導電性の付与効果が小
さい。[0007] The carbon black of the present invention is a carbon black formed by solid solution of boron and having an electric resistivity of 0.10 Ωcm or less measured according to JIS K1469. When the electrical resistivity is larger than 0.10 Ωcm, the effect of imparting conductivity is small even if it is contained in a resin, rubber or paint.
【０００８】本発明のカーボンブラックの高導電性は、
カーボンブラックにホウ素を固溶させることによって行
われる。ホウ素の固溶量としては、０．５重量％以下で
あるとその効果が小さいので、それよりも多く固溶させ
ることが好ましく、特に０．６重量％以上が好ましい。The high conductivity of the carbon black of the present invention is as follows.
This is performed by dissolving boron in carbon black. If the amount of solid solution of boron is 0.5% by weight or less, the effect is small. Therefore, it is preferable to make the solid solution more than that, particularly preferably 0.6% by weight or more.
【０００９】本発明におけるホウ素の固溶量は、以下に
従って測定された全ホウ素量から可溶ホウ素量を差し引
くことによって求めることができる。The solid solution amount of boron in the present invention can be determined by subtracting the soluble boron amount from the total boron amount measured according to the following.
【００１０】全ホウ素量は、カーボンブラック０．５ｇ
を白金皿に取り、１．５重量％Ｃａ（ＯＨ）2溶液２０
ｍｌ、アセトン５ｍｌを加え、超音波洗浄器で１時間分
散させる。それをサンドバスで乾固させた後、電気炉を
用い、酸素気流中、８００℃で３時間かけて灰化させ
る。次いで、ＨＣｌ（１＋１）溶液１０ｍｌを加えサン
ドバス中で加熱して溶出させる。溶出液を１００ｍｌに
定容し、ＩＣＰ−ＡＥＳでホウ素量を定量し、カーボン
ブラック中の全ホウ素量とする。The total amount of boron is 0.5 g of carbon black.
Is placed in a platinum dish, and a 1.5% by weight Ca (OH) 2 solution 20
Then, 5 ml of acetone and 5 ml of acetone are added, and the mixture is dispersed with an ultrasonic cleaner for 1 hour. After it was dried in a sand bath, it was ashed at 800 ° C. for 3 hours in an oxygen stream using an electric furnace. Next, 10 ml of an HCl (1 + 1) solution is added, and the mixture is heated and eluted in a sand bath. The volume of the eluate is made constant to 100 ml, the amount of boron is quantified by ICP-AES, and the total amount of boron in carbon black is determined.
【００１１】可溶ホウ素量は、カーボンブラック１ｇを
石英ガラス製三角フラスコに取り、水１００ｍｌとアセ
トン１ｍｌを加える。それをウォーターバス上で２４時
間還留させ、０．８μｍメンブランフィルターで濾過す
る。炉液のホウ素量をＩＣＰ−ＡＥＳで定量し、カーボ
ンブラック中の可溶ホウ素量とする。For the amount of soluble boron, 1 g of carbon black is placed in a quartz glass Erlenmeyer flask, and 100 ml of water and 1 ml of acetone are added. It is distilled on a water bath for 24 hours and filtered through a 0.8 μm membrane filter. The amount of boron in the furnace liquid is quantified by ICP-AES, and is defined as the amount of soluble boron in carbon black.
【００１２】本発明のカーボンブラックのＥＳＲ（電子
スピン共鳴）分析結果によれば、不対電子を示すスピン
がホウ素固溶量に比例して増加することが確認されてお
り、これは従来のホウ素添加カーボンブラックでは全く
見られなかった現象である。According to the ESR (Electron Spin Resonance) analysis results of the carbon black of the present invention, it has been confirmed that the number of spins indicating unpaired electrons increases in proportion to the amount of solid solution in boron. This phenomenon was not observed at all with the added carbon black.
【００１３】本発明のカーボンブラックが高導電性を示
す理由については定かでないが、ホウ素がカーボンブラ
ック中へ取り込まれることによって、格子面が広がり、
π電子密度が低下して自由電子が増加したことによる
か、又はフェルミ準位が低下してホール効果が発現した
ことによると考えられる。The reason why the carbon black of the present invention exhibits high conductivity is not clear, but when boron is incorporated into the carbon black, the lattice plane expands,
It is considered that the π electron density decreased and the free electrons increased, or the Fermi level decreased and the Hall effect appeared.
【００１４】本発明の高導電性付与機構が、ホウ素固溶
に基づくものであるので、本発明においては、サーマル
ブラック、ファーネスブラック、ランプブラック、チャ
ンネルブラック、ロールブラック、ディスクブラック、
黒鉛化ブラック、アセチレンブラック等、全てのカーボ
ンブラックが対象となる。The mechanism for imparting high conductivity according to the present invention is based on boron solid solution. Therefore, in the present invention, thermal black, furnace black, lamp black, channel black, roll black, disk black,
All carbon blacks such as graphitized black and acetylene black are applicable.
【００１５】本発明のホウ素固溶のカーボンブラックの
比表面積は２０〜１１０ｇ／ｃｍ2が好ましく、また沃
素吸着量は３０〜８０ｍｇ／ｇであることが好ましい。The specific surface area of the boron-dissolved carbon black of the present invention is preferably 20 to 110 g / cm 2 , and the iodine adsorption amount is preferably 30 to 80 mg / g.
【００１６】本発明のカーボンブラックの製造方法は、
炭化水素の熱分解反応時及び／又は燃焼反応時にホウ素
源を存在させることが特徴である。本発明の製造方法に
よれば、瞬時に反応及び／又は燃焼が進むので容易にホ
ウ素固溶のカーボンブラックを製造することができる。
しかも、ホウ素固溶量は、生成したカーボンブラックに
後添加する方法よりも格段に多くすることができる。ホ
ウ素源の供給方法は、炭化水素ガスとあらかじめ混合し
てもよく、また炭化水素が熱分解及び／又は燃焼を起こ
す領域に別ラインで供給してもよい。本発明の製造方法
は、従来のカーボンブラックの装置を使用することがで
きるため、コスト的にも優位である。The method for producing carbon black of the present invention comprises:
It is characterized in that a boron source is present during a hydrocarbon pyrolysis reaction and / or a combustion reaction. According to the production method of the present invention, the reaction and / or combustion proceeds instantaneously, so that boron-dissolved carbon black can be easily produced.
Moreover, the amount of boron solid solution can be significantly increased as compared with the method of post-addition to the produced carbon black. The method of supplying the boron source may be pre-mixed with the hydrocarbon gas, or may be supplied in a separate line to a region where the hydrocarbon undergoes thermal decomposition and / or combustion. The production method of the present invention is advantageous in terms of cost because a conventional apparatus for carbon black can be used.
【００１７】特公平２−１６９３３号公報には、ホウ砂
またはホウ酸の５％水溶液でカーボンブラックを処理
し、１１０〜１２０℃の温度で乾燥した後、２０００〜
２５００℃の弱還元性媒質中で熱処理をして、０．５重
量％以下のホウ素が添加されたカーボンブラックを得て
いるが、このものはＪＩＳ Ｋ １４６９による電気抵
抗率が０．１０Ωｃｍ以下とはならない。また、ホウ素
添加方法についても、カーボンブラック生成後の後処理
によるものであり、本発明とは異なっている。Japanese Patent Publication No. 2-16933 discloses that carbon black is treated with a 5% aqueous solution of borax or boric acid and dried at a temperature of 110 to 120 ° C.
Heat treatment is performed in a weak reducing medium at 2500 ° C. to obtain carbon black to which 0.5% by weight or less of boron has been added. This carbon black has an electrical resistivity of 0.10 Ωcm or less according to JIS K 1469. Must not. Further, the method of adding boron is also based on the post-treatment after the carbon black is generated, and is different from the present invention.
【００１８】本発明で使用される炭化水素は、ガス状、
オイル状様々な炭化水素を用いることができるが、アセ
チレンを用いた場合は生成する熱量が大きく、反応温度
が高くなるため好ましい。The hydrocarbon used in the present invention is gaseous,
Although various oil-like hydrocarbons can be used, the use of acetylene is preferable because the amount of generated heat is large and the reaction temperature is high.
【００１９】また、本発明に用いるホウ素源について
は、ホウ素、ホウ酸、ホウ酸トリエチル、ホウ酸トリメ
チル、トリエチルボラン、トリブチルボラン、三塩化ホ
ウ素、三弗化ホウ素、ジボラン等のホウ素を含む物質で
ある。中でも、有機ホウ素化合物は、気化させて使用す
ることが容易であるので好ましい。The boron source used in the present invention is a substance containing boron such as boron, boric acid, triethyl borate, trimethyl borate, triethyl borane, tributyl borane, boron trichloride, boron trifluoride, and diborane. is there. Among them, the organic boron compounds are preferable because they can be easily vaporized and used.
【００２０】次に、本発明の導電性組成物について説明
する。Next, the conductive composition of the present invention will be described.
【００２１】本発明で使用されるゴムとしては、天然ゴ
ム、スチレンブタジエンゴム、アクリロニトリルブタジ
エンゴム、ブチルゴム、アクリルゴム、エチレンプロピ
レンゴム、エチレンプロピレンターポリマー、エチレン
とα−オレフィンとの共重合ゴム、シリコーンゴム、フ
ッ素ゴム、ポリエステル等の熱可塑性エラストマー、ク
ロロプレンゴム、ポリブタジエン、ヒドリンゴム、クロ
ロスルフォン化ポリエチレン等である。The rubber used in the present invention includes natural rubber, styrene butadiene rubber, acrylonitrile butadiene rubber, butyl rubber, acrylic rubber, ethylene propylene rubber, ethylene propylene terpolymer, copolymer rubber of ethylene and α-olefin, silicone Thermoplastic elastomers such as rubber, fluorine rubber and polyester, chloroprene rubber, polybutadiene, hydrin rubber, chlorosulfonated polyethylene and the like.
【００２２】また、樹脂又は塗料の樹脂成分としては、
ビスフェノール型エポキシ樹脂、フェノールノボラック
型エポキシ樹脂、グリシジルエステル型エポキシ樹脂、
グリシジルアミン型エポキシ樹脂、脂環型エポキシ樹
脂、塩素環型エポキシ樹脂、ハロゲン化エポキシ樹脂等
のエポキシ樹脂、ポリベンズイミダゾール、ポリベンズ
オキサゾール、ポリベンズチアゾール、ポリオキサジア
ゾール、ポリピラゾール、ポリキノキサリン、ポリキナ
ゾリンジオン、ポオリベンズオキサジノン、ポリインド
ロン、ポリキナゾロン、ポリインドキシル、シリコン樹
脂、シリコン−エポキシ樹脂、フェノール樹脂、メラミ
ン樹脂、ユリア樹脂、不飽和ポリエステル、ポリアミノ
ビスマレイミド、ジアリルフタレート樹脂、フッ素樹
脂、ポリイミド、ポリアミドイミド、ポリエーテルイミ
ド、アモルファスナイロン等のポリアミド、ポリブチル
テレフタレート及びポリエチレンテレフタレート等のポ
リエステル、ポリフェニレンスルフィド、変性ポリフェ
ニレンエーテル、ポリアリレート、全芳香族ポリエステ
ル、ポリスルフォン、液晶ポリマー、ポリエーテルエー
テルケトン、ポリエーテルスルホン、ポリカーボネー
ト、マレイミド変性樹脂、ＡＢＳ樹脂、ＡＡＳ（アクリ
ロニトリル・アクリルゴム・スチレン）樹脂、ＡＥＳ樹
脂（アクリロニトリル−エチレン・プロピレン・ジエン
ゴム−スチレン）樹脂、ポリエチレン、ポリプロピレ
ン、エチレン酢酸ビニルやアクリル酸エチル等の共重合
体樹脂等である。Further, as the resin component of the resin or paint,
Bisphenol type epoxy resin, phenol novolak type epoxy resin, glycidyl ester type epoxy resin,
Glycidylamine type epoxy resin, alicyclic type epoxy resin, chlorinated type epoxy resin, epoxy resin such as halogenated epoxy resin, polybenzimidazole, polybenzoxazole, polybenzthiazole, polyoxadiazole, polypyrazole, polyquinoxaline, Polyquinazolinedione, poolibenzoxazinone, polyindolone, polyquinazolone, polyindoxyl, silicone resin, silicon-epoxy resin, phenolic resin, melamine resin, urea resin, unsaturated polyester, polyaminobismaleimide, diallyl phthalate resin, fluorine resin, Polyamide such as polyimide, polyamide imide, polyether imide and amorphous nylon; polyester such as polybutyl terephthalate and polyethylene terephthalate; Lens sulfide, modified polyphenylene ether, polyarylate, wholly aromatic polyester, polysulfone, liquid crystal polymer, polyetheretherketone, polyethersulfone, polycarbonate, maleimide-modified resin, ABS resin, AAS (acrylonitrile / acrylic rubber / styrene) resin, AES resin (acrylonitrile-ethylene-propylene-diene rubber-styrene) resin, polyethylene, polypropylene, and copolymer resins such as ethylene vinyl acetate and ethyl acrylate.
【００２３】本発明のカーボンブラックの混合量につい
ては、全く任意であり、その一例を示せば、導電性組成
物のゴム及び／又は樹脂成分１００重量部に対し、カー
ボンブラック５〜１００重量部である。The mixing amount of the carbon black of the present invention is completely arbitrary. For example, 5 to 100 parts by weight of carbon black is used per 100 parts by weight of the rubber and / or resin component of the conductive composition. is there.
【００２４】本発明の導電性組成物には、各種の界面活
性剤、可塑剤、増粘剤、結合剤、消泡剤等の常法の添加
剤を配合することができる。The conductive composition of the present invention may contain various conventional additives such as surfactants, plasticizers, thickeners, binders, and defoamers.
【００２５】[0025]
【実施例】以下、実施例、比較例、参考例をあげて更に
具体的に本発明を説明する。本発明において、カーボン
ブラック及び導電性組成物の物性は以下の方法で測定し
た。The present invention will be described more specifically with reference to examples, comparative examples and reference examples. In the present invention, the physical properties of the carbon black and the conductive composition were measured by the following methods.
【００２６】（１）ホウ素固溶量：上記に従って測定し
た。 （２）沃素吸着量：ＪＩＳ Ｋ １４７４に従って測定
した。 （３）比表面積：窒素ガス吸着によるＢＥＴ式１点法に
て測定した。 （４）ＤＢＰ吸油量：ＪＩＳ Ｋ ６２２１のＢ法にて
測定した。 （５）電気抵抗率：ＪＩＳ Ｋ １４６９に従って測定
した。(1) Boron solid solution amount: Measured as described above. (2) Iodine adsorption amount: Measured according to JIS K 1474. (3) Specific surface area: measured by the BET one-point method using nitrogen gas adsorption. (4) DBP oil absorption: Measured by the method B of JIS K6221. (5) Electric resistivity: measured in accordance with JIS K 1469.
【００２７】（６）導電性組成物の体積固有抵抗：カー
ボンブラック３０重量部とＥＶＡ樹脂（日本ユニカ製
「ＮＵＣ−３１４５」）１００重量部とを内容積６０ｍ
ｌの混練試験機（東洋精機製作所製「ラボプラストグラ
フＲ−６０」）でブレード回転数３０ｒｐｍ、温度１２
０℃で１０分間混練し、得られた混練物を温度１８０℃
の加熱下１００ｋｇ／ｃｍ２の圧力で加圧成形して２×
２０×７０ｍｍの試験片を作製し、電気抵抗をデジタル
マルチメータ（横河電機製「デジタルマルチメータ７５
６２」）で測定した。(6) Volume specific resistance of the conductive composition: 30 parts by weight of carbon black and 100 parts by weight of EVA resin ("NUC-3145" manufactured by Nippon Unica) with an inner volume of 60 m
1 with a kneading tester (“Laboplastograph R-60” manufactured by Toyo Seiki Seisaku-sho, Ltd.) at a blade rotation speed of 30 rpm and a temperature of 12
Kneaded at 0 ° C. for 10 minutes, and the obtained kneaded material was heated to 180 ° C.
Press molding at a pressure of 100 kg / cm2 under heating of 2 ×
A test piece of 20 × 70 mm was prepared, and the electric resistance was measured using a digital multimeter (“Digital Multimeter 75” manufactured by Yokogawa Electric Corporation).
62 ").
【００２８】（７）導電性組成物のＭＦｉ（メルトフロ
ーインデックス）：体積固有抵抗で使用した試験片を２
×５×５ｍｍの大きさに切断し、流動性測定器（東洋精
機製作所製「メルトインデクサーＡ−１１１」）で２０
０℃の加熱下、５ｋｇの荷重下にて内径２ｍｍのノズル
から流れる１０分間当たりのコンパウンド重量を測定し
た。(7) MFi (melt flow index) of the conductive composition: The test piece used for volume resistivity was 2
It is cut into a size of × 5 × 5 mm, and is cut with a flowability measuring device (“Melt Indexer A-111” manufactured by Toyo Seiki Seisaku-sho, Ltd.).
The compound weight per 10 minutes flowing from a nozzle having an inner diameter of 2 mm under a load of 5 kg under heating at 0 ° C. was measured.
【００２９】実施例１〜３ 比較例１ アセチレンガス（炭化水素）と、気化させたホウ酸トリ
メチル（ホウ素源）とを、ノズル投入前であらかじめ混
合し、それを炉全長６ｍ、炉直径１ｍのカーボンブラッ
ク製造炉の炉頂に設置されたノズルから、表１の条件で
噴霧し、アセチレンの熱分解反応を利用してカーボンブ
ラックを製造した。得られたカーボンブラックは、バグ
フィルターで捕集し、上記の評価を行った。それらの結
果を表２に示す。Examples 1 to 3 Comparative Example 1 Acetylene gas (hydrocarbon) and vaporized trimethyl borate (boron source) were mixed in advance before being charged into a nozzle, and were mixed with a furnace having a total length of 6 m and a furnace diameter of 1 m. The spray was sprayed from a nozzle installed on the top of the carbon black production furnace under the conditions shown in Table 1, and carbon black was produced using a thermal decomposition reaction of acetylene. The obtained carbon black was collected by a bag filter and evaluated as described above. Table 2 shows the results.
【００３０】実施例４ アセチレンガスと、ホウ酸トリメチルと、酸素ガス（助
燃ガス）の混合ガスを用いたこと以外は、実施例１に準
じ、アセチレン燃焼反応を利用してカーボンブラックを
製造した。その結果を表２に示す。Example 4 Carbon black was produced using an acetylene combustion reaction in the same manner as in Example 1 except that a mixed gas of acetylene gas, trimethyl borate, and oxygen gas (combustion gas) was used. Table 2 shows the results.
【００３１】実施例５ ホウ酸トリメチルの代わりにホウ酸トリエチルを用いた
こと以外は、実施例２と同様にしてカーボンブラックを
製造した。その結果を表３に示す。Example 5 Carbon black was produced in the same manner as in Example 2 except that triethyl borate was used instead of trimethyl borate. Table 3 shows the results.
【００３２】参考例１ 電気抵抗率０．２３５Ωｃｍのカーボンブラックと０．
４重量％ホウ酸水溶液を混合した後、温度１１０℃で乾
燥し、更に窒素雰囲気中、温度２１００℃で熱処理を行
った。得られたカーボンブラック及びその導電性組成物
の物性を表２に示す。Reference Example 1 Carbon black having an electrical resistivity of 0.235 Ωcm and 0.1%
After mixing a 4% by weight aqueous solution of boric acid, the mixture was dried at a temperature of 110 ° C., and was further heat-treated at a temperature of 2100 ° C. in a nitrogen atmosphere. Table 2 shows the physical properties of the obtained carbon black and the conductive composition.
【００３３】参考例２ 高比表面積タイプの高導電性ファーネスブラックの市販
品（キャボット社製「バルカンＸＣ−７２」）及びその
導電性組成物の物性を表１に示す。Reference Example 2 Table 1 shows the physical properties of a commercial product of high specific surface area type high conductivity furnace black ("Vulcan XC-72" manufactured by Cabot Corporation) and its conductive composition.
【００３４】[0034]
【表１】 [Table 1]
【００３５】[0035]
【表２】 [Table 2]
【００３６】表２から、本発明のホウ素を固溶したカー
ボンブラックは、比較例１、参考例１、２に比べて、粉
体自身の導電性である電気抵抗率と、導電性組成物の体
積固有抵抗のいずれもが低下しており、格段に優れる導
電性を示した。また、本発明のカーボンブラックは、市
販品よりも小さい比表面積を有しているので、導電性組
成物のＭＦｉも大きく樹脂への混練性が非常に良好であ
り、ゴム・樹脂・塗料への混合・混練時の作業性も大き
く改善されることがわかった。From Table 2, it can be seen that, compared to Comparative Example 1 and Reference Examples 1 and 2, the carbon black having a solid solution of boron of the present invention has an electric resistivity which is the conductivity of the powder itself, All of the volume specific resistances were low, and the conductivity was extremely excellent. Further, since the carbon black of the present invention has a specific surface area smaller than that of a commercially available product, the MFi of the conductive composition is large and the kneading property to the resin is very good, and the carbon black is used for rubber, resin and paint. It was found that the workability during mixing and kneading was greatly improved.
【００３７】[0037]
【発明の効果】本発明のカーボンブラックは、導電性付
与効果が大であり、しかもゴム・樹脂・塗料に多量混合
しても従来の高比表面積カーボンブラックほどには粘度
が上昇しないので、その分、富配合することが可能とな
り、著しく高度な導電性組成物を提供することができ
る。The carbon black of the present invention has a large conductivity-imparting effect, and its viscosity does not increase as much as conventional high specific surface area carbon black even when it is mixed in a large amount with rubber, resin or paint. Therefore, it is possible to provide a highly rich conductive composition.
【００３８】本発明のカーボンブラックの製造方法によ
れば、従来設備を利用して容易に上記導電性付与効果の
大なるカーボンブラックを製造することができる。According to the method for producing carbon black of the present invention, it is possible to easily produce carbon black having the above-mentioned effect of imparting conductivity by using conventional equipment.
【００３９】本発明の導電性組成物によれば、導電性に
優れた各種の樹脂、ゴム、塗料が提供される。本発明の
導電性組成物は、電磁波シールドにも有効である。According to the conductive composition of the present invention, various resins, rubbers and paints having excellent conductivity are provided. The conductive composition of the present invention is also effective for electromagnetic wave shielding.
フロントページの続き (72)発明者 鶴田 和義 福岡県大牟田市新開町１ 電気化学工業株 式会社大牟田工場内 Ｆターム(参考） 4J037 AA02 BB12 BB15 BB16 BB17 CA26 CC01 CC06 CC11 CC21 DD07 DD12 DD13 DD17 EE28 EE48 FF05 FF11 4J038 EA011 HA026 NA20 5G301 DA17 DA18 DA45 DD02 DD08 DE03 Continued on the front page (72) Inventor Kazuyoshi Tsuruta 1 Shinkaicho, Omuta-shi, Fukuoka F-term in the Omuta Plant of Electrochemical Industry Co., Ltd. (Reference) 4J037 AA02 BB12 BB15 BB16 BB17 CA26 CC01 CC06 CC11 CC21 DD07 DD12 DD13 DD17 EE28 EE48 FF05 FF11 4J038 EA011 HA026 NA20 5G301 DA17 DA18 DA45 DD02 DD08 DE03
Claims (4)
が０．１０Ωｃｍ以下であることを特徴とするホウ素固
溶のカーボンブラック。1. A boron-dissolved carbon black having an electrical resistivity according to JIS K 1469 of 0.10 Ωcm or less.
反応時にホウ素源を存在させることを特徴とするホウ素
固溶カーボンブラックの製造方法。2. A method for producing a boron-dissolved carbon black, characterized in that a boron source is present during a thermal decomposition reaction and / or a combustion reaction of hydrocarbons.
ホウ素化合物であることを特徴とする請求項２記載のカ
ーボンブラックの製造方法。3. The method for producing carbon black according to claim 2, wherein the hydrocarbon is acetylene and the boron source is an organic boron compound.
ーボンブラックを含有させてなることを特徴とする導電
性組成物。4. A conductive composition comprising the resin, rubber, or paint containing the carbon black according to claim 1.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP08666199A JP3667144B2 (en) | 1999-03-29 | 1999-03-29 | Carbon black, method for producing the same, and conductive composition |
| DE60015004T DE60015004T2 (en) | 1999-03-29 | 2000-03-23 | Russ, its manufacture and uses |
| EP00106342A EP1043731B1 (en) | 1999-03-29 | 2000-03-23 | Carbon black, method for its preparation and its applications |
| US09/534,317 US6403697B1 (en) | 1999-03-29 | 2000-03-24 | Carbon black, method for its preparation and its applications |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP08666199A JP3667144B2 (en) | 1999-03-29 | 1999-03-29 | Carbon black, method for producing the same, and conductive composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000281933A true JP2000281933A (en) | 2000-10-10 |
| JP3667144B2 JP3667144B2 (en) | 2005-07-06 |
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ID=13893230
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP08666199A Expired - Lifetime JP3667144B2 (en) | 1999-03-29 | 1999-03-29 | Carbon black, method for producing the same, and conductive composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3667144B2 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003020096A (en) * | 2001-07-09 | 2003-01-21 | Denki Kagaku Kogyo Kk | Ic package |
| JP2004221071A (en) * | 2002-12-26 | 2004-08-05 | Showa Denko Kk | Carbonaceous material for conductive composition and its usage |
| JP2005294120A (en) * | 2004-04-01 | 2005-10-20 | Toyota Motor Corp | Fuel cell structure |
| WO2006003924A1 (en) * | 2004-06-30 | 2006-01-12 | Denki Kagaku Kogyo Kabushiki Kaisha | Electromagnetic wave absorbent |
| WO2006095656A1 (en) * | 2005-03-07 | 2006-09-14 | Denki Kagaku Kogyo Kabushiki Kaisha | Electromagnetic wave absorbing body |
| US7329698B2 (en) | 2001-08-06 | 2008-02-12 | Showa Denko K.K. | Conductive curable resin composition and separator for fuel cell |
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| JP2014118494A (en) * | 2012-12-17 | 2014-06-30 | Denki Kagaku Kogyo Kk | Nitrogen containing carbon black, its manufacturing method and catalyst for fuel cell using the same |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003020096A (en) * | 2001-07-09 | 2003-01-21 | Denki Kagaku Kogyo Kk | Ic package |
| US7338730B2 (en) | 2001-08-06 | 2008-03-04 | Showa Denko K.K. | Conductive curable resin composition and separator for fuel cell |
| US7329698B2 (en) | 2001-08-06 | 2008-02-12 | Showa Denko K.K. | Conductive curable resin composition and separator for fuel cell |
| JP2004221071A (en) * | 2002-12-26 | 2004-08-05 | Showa Denko Kk | Carbonaceous material for conductive composition and its usage |
| KR101156012B1 (en) * | 2002-12-26 | 2012-06-18 | 쇼와 덴코 가부시키가이샤 | Carbonaceous material for electrically conductive material and use thereof |
| JP2005294120A (en) * | 2004-04-01 | 2005-10-20 | Toyota Motor Corp | Fuel cell structure |
| WO2006003924A1 (en) * | 2004-06-30 | 2006-01-12 | Denki Kagaku Kogyo Kabushiki Kaisha | Electromagnetic wave absorbent |
| WO2006095656A1 (en) * | 2005-03-07 | 2006-09-14 | Denki Kagaku Kogyo Kabushiki Kaisha | Electromagnetic wave absorbing body |
| JP2008162866A (en) * | 2006-12-28 | 2008-07-17 | Erubu:Kk | Composite ceramic material for infrared emission, method for producing the same, member for cookware and rice cooker |
| JP2014118494A (en) * | 2012-12-17 | 2014-06-30 | Denki Kagaku Kogyo Kk | Nitrogen containing carbon black, its manufacturing method and catalyst for fuel cell using the same |
| JP2017122225A (en) * | 2017-01-25 | 2017-07-13 | デンカ株式会社 | Nitrogen-containing carbon black and fuel cell catalyst prepared therewith |
| CN113637339A (en) * | 2021-07-06 | 2021-11-12 | 万达集团股份有限公司 | Production method of carbon black for high-wear-resistance low-rolling-resistance green tire |
| CN113637339B (en) * | 2021-07-06 | 2023-07-18 | 万达集团股份有限公司 | Production method of carbon black for green tire with high wear resistance and low rolling resistance |
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