JPS6144907B2 - - Google Patents
Info
- Publication number
- JPS6144907B2 JPS6144907B2 JP19276082A JP19276082A JPS6144907B2 JP S6144907 B2 JPS6144907 B2 JP S6144907B2 JP 19276082 A JP19276082 A JP 19276082A JP 19276082 A JP19276082 A JP 19276082A JP S6144907 B2 JPS6144907 B2 JP S6144907B2
- Authority
- JP
- Japan
- Prior art keywords
- parts
- vinyl acetate
- weight
- vinyl chloride
- copolymer
- 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
Links
- 230000001070 adhesive effect Effects 0.000 claims description 33
- 239000000853 adhesive Substances 0.000 claims description 32
- 229920001577 copolymer Polymers 0.000 claims description 15
- 239000006229 carbon black Substances 0.000 claims description 14
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 claims description 10
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims description 9
- 238000006116 polymerization reaction Methods 0.000 claims description 9
- 229920002433 Vinyl chloride-vinyl acetate copolymer Polymers 0.000 claims description 8
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims description 4
- 238000010521 absorption reaction Methods 0.000 claims description 4
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 claims description 4
- 239000011976 maleic acid Substances 0.000 claims description 4
- 239000004014 plasticizer Substances 0.000 claims description 4
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 3
- 241000872198 Serjania polyphylla Species 0.000 claims 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 9
- 239000004800 polyvinyl chloride Substances 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 6
- 238000002156 mixing Methods 0.000 description 5
- 239000003921 oil Substances 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229920001897 terpolymer Polymers 0.000 description 3
- VJFPVACZAZLCCM-UAIGNFCESA-N (z)-but-2-enedioic acid;chloroethene;ethenyl acetate Chemical compound ClC=C.CC(=O)OC=C.OC(=O)\C=C/C(O)=O VJFPVACZAZLCCM-UAIGNFCESA-N 0.000 description 2
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 2
- YSMRWXYRXBRSND-UHFFFAOYSA-N TOTP Chemical compound CC1=CC=CC=C1OP(=O)(OC=1C(=CC=CC=1)C)OC1=CC=CC=C1C YSMRWXYRXBRSND-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- HGAZMNJKRQFZKS-UHFFFAOYSA-N chloroethene;ethenyl acetate Chemical compound ClC=C.CC(=O)OC=C HGAZMNJKRQFZKS-UHFFFAOYSA-N 0.000 description 2
- 239000006258 conductive agent Substances 0.000 description 2
- MIMDHDXOBDPUQW-UHFFFAOYSA-N dioctyl decanedioate Chemical compound CCCCCCCCOC(=O)CCCCCCCCC(=O)OCCCCCCCC MIMDHDXOBDPUQW-UHFFFAOYSA-N 0.000 description 2
- -1 diothyl phthalate Chemical compound 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- YEVQZPWSVWZAOB-UHFFFAOYSA-N 2-(bromomethyl)-1-iodo-4-(trifluoromethyl)benzene Chemical compound FC(F)(F)C1=CC=C(I)C(CBr)=C1 YEVQZPWSVWZAOB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- ALKCLFLTXBBMMP-UHFFFAOYSA-N 3,7-dimethylocta-1,6-dien-3-yl hexanoate Chemical compound CCCCCC(=O)OC(C)(C=C)CCC=C(C)C ALKCLFLTXBBMMP-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 description 1
- ZVFDTKUVRCTHQE-UHFFFAOYSA-N Diisodecyl phthalate Chemical compound CC(C)CCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC(C)C ZVFDTKUVRCTHQE-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 239000006230 acetylene black Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 150000001278 adipic acid derivatives Chemical class 0.000 description 1
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 description 1
- ZFMQKOWCDKKBIF-UHFFFAOYSA-N bis(3,5-difluorophenyl)phosphane Chemical compound FC1=CC(F)=CC(PC=2C=C(F)C=C(F)C=2)=C1 ZFMQKOWCDKKBIF-UHFFFAOYSA-N 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- WIBFFTLQMKKBLZ-SEYXRHQNSA-N n-butyl oleate Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OCCCC WIBFFTLQMKKBLZ-SEYXRHQNSA-N 0.000 description 1
- FIBARIGPBPUBHC-UHFFFAOYSA-N octyl 8-(3-octyloxiran-2-yl)octanoate Chemical compound CCCCCCCCOC(=O)CCCCCCCC1OC1CCCCCCCC FIBARIGPBPUBHC-UHFFFAOYSA-N 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical class OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- ARCGXLSVLAOJQL-UHFFFAOYSA-N trimellitic acid Chemical class OC(=O)C1=CC=C(C(O)=O)C(C(O)=O)=C1 ARCGXLSVLAOJQL-UHFFFAOYSA-N 0.000 description 1
- JNXDCMUUZNIWPQ-UHFFFAOYSA-N trioctyl benzene-1,2,4-tricarboxylate Chemical compound CCCCCCCCOC(=O)C1=CC=C(C(=O)OCCCCCCCC)C(C(=O)OCCCCCCCC)=C1 JNXDCMUUZNIWPQ-UHFFFAOYSA-N 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Description
本発明は導電性の接着剤に関し、詳しくは、導
電性のポリ塩化ビニル同士や導電性ポリ塩化ビニ
ルと金属殊に鉛との接着に好適の、塩化ビニル−
酢酸ビニル系共重合体と高表面積カーボンブラツ
クとからなる導電性接着剤を提案するものであ
る。
導電性ポリ塩化ビニル層と導体とを電気的に接
触した状態で接着するとき、接着剤として導電性
のものが要求される。ポリ塩化ビニル（以下、
PVC）用の接着剤としては多くのものが公知で
あり、また導電性付与剤も各種の金属粉やカーボ
ンブラツクが知られているから、それら公知の接
着剤に導電性付与剤を混合すれば、一般に導電性
接着剤が得られる。
しかしながら充分な導電性を達成するために大
量の導電性付与剤を混合する接着剤の接着性、柔
軟性が大きく阻害され、逆に少量の混合の場合は
充分な導電性のものが得られない。
上記に鑑み、本発明は接着性、柔軟性に優れ、
しかも充分な導電性を有する前記組成の接着剤を
提案するものである。
接着剤のベースとなる塩化ビニル−酢酸ビニル
系共重合体としては、塩化ビニルと酢酸ビニルの
二種のモノマーが広い範囲の量比で共重合したも
の、更には更に第三のモノマーとして、マレイン
酸、アクリル酸などの不飽和カルボン酸を少量
（好ましくは10重量％以下）含む三元共重合体な
どが用いられる。重合度は100〜1000程度が適当
である。特に好ましいものは、塩化ビニル成分：
70〜95％（重量％、以下同様）、酢酸ビニル成
分：５〜30％、重合度100〜900、特に300〜600の
共重合体、塩化ビニル成分：79〜92％、酢酸ビニ
ル成分：７〜20％、マレイン酸：0.1〜10％、重
合度：100〜900の三元共重合体などである。
塩化ビニル−酢酸ビニル系共重合体は二種以上
を併用してもよく、また該共重合体100部（重量
部、以下同様）あたり50部以下、特に30部以下の
少量であれば接着性や柔軟性を改善する材料を混
合使用してもよい。かゝる材料としては、アクリ
ロニトリル共重合体、塩化ゴム、ポリ錯酸ビニ
ル、ポリエステル、ポリウレタン、エポキシ樹
脂、可塑性などが例示できる。このうち特に、好
ましいものは結合アクリロニトリル量：20〜50
％、ムーニー粘度（ML1+4）：40〜90のアクリロ
ニトリル共重合体及び液状の可塑剤である。
液状可塑剤として、たとえばポリ塩化ビニルに
通常用いられるもの、例えば、ジブチルフタレー
ト、ジオチルフタレート、ジイソデシルフタレー
ト、等のフタル酸エステル類、エポキシ化油、エ
ポキシステアリン酸オクチル等のエポキシ誘導
体、ジオクチルアジペート、ジイソデシルアジペ
ートなどのアジピン酸誘導体、オレイン酸ブチ
ル、ジオクチルセバケートなどの脂肪酸エステル
類、トリオクチルトリメリテートなどのトリメリ
ツト酸誘導体、トリオクチルホスフエート、トリ
クレジルホスフエートなどのリン酸誘導体などが
用いられる。可塑剤の配合量は塩化ビニル−酢酸
ビニル系共重合体100部当り20〜100部が適当であ
る。20部以下では接着剤がもろくなり剥離強度が
劣り、又、100部を越えると、接着剤が軟化し
て、接着剤自体の強度が低くなるため剥離強度が
劣る。
高表面積カーボンブラツクは、塩化ビニル−酢
酸ビニル系共重合体に通常の方法で混練混合され
たとき、その高表面積の特徴にもとずき該共重合
体中で良好な導電性のネツトワークを形成するの
で少量の使用で、而して該共重合体の接着性、柔
軟性に実質悪影響を及ぼすことなく充分な導電性
を付与する。高表面積カーボンブラツクの好まし
いものはBET表面積が500m2/ｇ以上であり、JIS
Ｋ 6221−1970によるDBP吸油量が250ml／100ｇ
以上のものである。
１×106Ωcm以下程度の低い体積抵抗率を有す
る接着剤は導電性を有するものとして種々の有用
な用途を有する。所望の導電度によつて、高表面
積カーボンブラツクの配合量は変わるが一般的に
は樹脂分に対して少なくとも10％の配合で上記し
た導電度のものを得ることができる。該カーボン
ブラツクの配合量を多くすると一層良導電性のも
のが得られるが、30％より多量に使用したときは
接着剤としての接着性、柔軟性に悪影響が現われ
るので、30％以下とすることが好ましい。該カー
ボンブラツクの特に好ましい配合量は、15〜25％
である。
以下、実施例により本発明を一層詳細に説明す
る。
実施例 １〜４
塩化ビニル−酢酸ビニル二元共重合体（塩化ビ
ニル成分：85％、酢酸ビニル成分：15％、平均重
合度800）100部、ジオクチルフタレート40部と高
表面積カーボン・ブラツク（オランダ国、アクゾ
ー社、ケツチエンブラツク、BET表面積：1000
m2/ｇ吸油量：340ml／100ｇ）を10部、15部、20
部又は30部とをそれぞれ50℃に設定した２本ロー
ルにて均一に混合して実施例１〜４の接着剤を得
た。
実施例 ５〜８
塩化ビニル−酢酸ビニル−マレイン酸三元共重
合体（塩化ビニル成分：86％、酢酸ビニル成分：
13％、マレイン酸成分：１％、平均重合度：
400）100部、及びジオクチルセバケート30部と実
施例１で使用の高表面積カーボンブラツク10部、
15部、20部又は30部とを、それぞれ50℃に設定し
た２本ロールにて均一に混合して実施例５〜８の
接着剤を得た。
実施例 ９〜10
塩化ビニル−酢酸ビニル二元共重合体（塩化ビ
ニル成分：80％、酢酸ビニル成分：20％平均重合
度：560）100部、及びトリクレジルホスフエート
60部と高表面積カーボンブラツク（三菱油化社
製、BET表面積：900m2/ｇ、吸油量：350ml/
ｇ）10部又は20部とを実施例１と同様に均一混合
して実施例９、10の接着剤を得た。
実施例 11〜12
実施例１で用いた二元共重合体100部、実施例
９で用いたカーボンブラツク10部、又は20部、及
び結合アクリロニトリル量：40％、ムーニー粘度
（ML1+4）：80のアクリロニトリル共重合体30部
とを実施例１と同様にして均一に混合して実施例
11、12の接着剤を得た。
実施例 13〜14
塩化ビニル−酢酸ビニル−マレイン酸三元共重
合体（塩化ビニル成分：78％、酢酸ビニル成分：
17％、マレイン酸：５％、平均重合度：500）100
部、実施例１で用いた高表面積カーボンブラツク
10部、又は20部とを実施例１と同様にして均一に
混合し、実施例13、14の接着剤を得た。
比較例 １、２
実施例１で使用の二元共重合体100部と低表面
積カーボンブラツク（導電性アセチレンブラツ
ク、BET表面積：130m2/ｇ）10部又は30部とを
実施例１と同様にして均一に混合し比較例１、２
の接着剤を得た。下表に各実施例、比較例の20℃
における体積抵抗率と下記の方法で測定した接着
力をそれぞれ示す。同表から明らかな通り、各実
施例はいずれの評価項目についても優れた特性を
示している。これに対して、比較例１は接着性は
良好であつても体積抵抗率が過大であり、比較例
２は比較例１と反対の結果となつている。
接着剤の接着力は、下記の方法で測定した。即
ち、接着剤をトルエン／メチルエチルケトンの
１：１混合溶剤中へ溶かして30％溶液を作り、こ
れを厚さ100μの鉛箔又は導電性PVC板へ塗布
し、80℃で30分間乾燥した。乾燥後の上記鉛又は
導電PVCに対して、厚さ100μの導電性ポリ塩化
ビニルを重ね、150℃の熱プレスによつて、圧力
0.5Kg/cm、加圧時間４分間プレスを行なつて接着
片を作成した。この接着片を幅10mm、長さ100mm
の短ざく状とし、２枚の被着体間の180度剥離強
度を引張速度100mm／分で測定し、試料幅１cm当
りの剥離強度として算出した。
The present invention relates to a conductive adhesive, and more specifically, a vinyl chloride adhesive suitable for adhering conductive polyvinyl chloride to each other or to bonding conductive polyvinyl chloride to a metal, especially lead.
This paper proposes a conductive adhesive consisting of a vinyl acetate copolymer and high surface area carbon black. When adhering a conductive polyvinyl chloride layer and a conductor in electrical contact, a conductive adhesive is required. Polyvinyl chloride (hereinafter referred to as
There are many known adhesives for PVC, and various metal powders and carbon black are known as conductive agents, so if you mix conductive agents with these known adhesives, , generally resulting in a conductive adhesive. However, in order to achieve sufficient conductivity, mixing a large amount of conductivity imparting agent greatly impedes the adhesion and flexibility of the adhesive, and conversely, if a small amount is mixed, sufficient conductivity cannot be obtained. . In view of the above, the present invention has excellent adhesiveness and flexibility,
Moreover, the present invention proposes an adhesive having the above composition that has sufficient electrical conductivity. The vinyl chloride-vinyl acetate copolymer that is the base of the adhesive is a copolymer of two monomers, vinyl chloride and vinyl acetate, in a wide range of ratios, and maleic as a third monomer. A terpolymer containing a small amount (preferably 10% by weight or less) of an unsaturated carboxylic acid such as acid or acrylic acid is used. The degree of polymerization is suitably about 100 to 1000. Particularly preferred are vinyl chloride components:
70-95% (wt%, the same applies hereinafter), vinyl acetate component: 5-30%, copolymer with a degree of polymerization of 100-900, especially 300-600, vinyl chloride component: 79-92%, vinyl acetate component: 7 ~20%, maleic acid: 0.1~10%, degree of polymerization: 100~900, etc. Vinyl chloride-vinyl acetate copolymers may be used in combination of two or more types, and a small amount of 50 parts or less, especially 30 parts or less per 100 parts (by weight, same hereinafter) of the copolymer will improve adhesive properties. A mixture of materials that improve flexibility and flexibility may also be used. Examples of such materials include acrylonitrile copolymers, chlorinated rubber, polyvinyl complex acids, polyesters, polyurethanes, epoxy resins, and plastics. Among these, particularly preferred is the amount of bound acrylonitrile: 20 to 50
%, Mooney viscosity (ML 1+4 ): 40-90 acrylonitrile copolymer and liquid plasticizer. Examples of liquid plasticizers include those commonly used for polyvinyl chloride, such as phthalate esters such as dibutyl phthalate, diothyl phthalate, and diisodecyl phthalate, epoxidized oils, epoxy derivatives such as octyl epoxy stearate, dioctyl adipate, Adipic acid derivatives such as diisodecyl adipate, fatty acid esters such as butyl oleate and dioctyl sebacate, trimellitic acid derivatives such as trioctyl trimellitate, and phosphoric acid derivatives such as trioctyl phosphate and tricresyl phosphate are used. It will be done. The appropriate amount of the plasticizer is 20 to 100 parts per 100 parts of the vinyl chloride-vinyl acetate copolymer. If the amount is less than 20 parts, the adhesive becomes brittle and the peel strength is poor, and if it exceeds 100 parts, the adhesive becomes soft and the strength of the adhesive itself decreases, resulting in poor peel strength. When high surface area carbon black is kneaded and mixed into a vinyl chloride-vinyl acetate copolymer by a conventional method, it forms a good electrically conductive network in the copolymer due to its high surface area. Since the copolymer is formed in a small amount, sufficient conductivity can be imparted without substantially adversely affecting the adhesiveness and flexibility of the copolymer. A preferable high surface area carbon black has a BET surface area of 500 m 2 /g or more, and has a JIS
DBP oil absorption amount by K 6221-1970 is 250ml/100g
That's all. Adhesives having a low volume resistivity of about 1×10 6 Ωcm or less have various useful uses as having electrical conductivity. The amount of high surface area carbon black blended varies depending on the desired electrical conductivity, but in general, the above-mentioned electrical conductivity can be obtained by blending at least 10% of the resin content. If the amount of carbon black added is increased, a product with better conductivity can be obtained, but if it is used in an amount greater than 30%, the adhesion and flexibility of the adhesive will be adversely affected, so the amount should be 30% or less. is preferred. A particularly preferable blending amount of carbon black is 15 to 25%.
It is. Hereinafter, the present invention will be explained in more detail with reference to Examples. Examples 1 to 4 100 parts of vinyl chloride-vinyl acetate binary copolymer (vinyl chloride component: 85%, vinyl acetate component: 15%, average degree of polymerization 800), 40 parts of dioctyl phthalate and high surface area carbon black (Netherlands) Country, Akzo, Ketschembrak, BET surface area: 1000
m2 /g oil absorption: 340ml/100g) 10 parts, 15 parts, 20 parts
and 30 parts, respectively, were uniformly mixed using two rolls set at 50°C to obtain adhesives of Examples 1 to 4. Examples 5 to 8 Vinyl chloride-vinyl acetate-maleic acid terpolymer (vinyl chloride component: 86%, vinyl acetate component:
13%, maleic acid component: 1%, average degree of polymerization:
400) 100 parts, and 30 parts of dioctyl sebacate and 10 parts of the high surface area carbon black used in Example 1,
Adhesives of Examples 5 to 8 were obtained by uniformly mixing 15 parts, 20 parts, or 30 parts using two rolls each set at 50°C. Examples 9-10 100 parts of vinyl chloride-vinyl acetate binary copolymer (vinyl chloride component: 80%, vinyl acetate component: 20% average degree of polymerization: 560), and tricresyl phosphate
60 parts and high surface area carbon black (manufactured by Mitsubishi Yuka Co., Ltd., BET surface area: 900 m 2 /g, oil absorption: 350 ml /
g) 10 parts or 20 parts were uniformly mixed in the same manner as in Example 1 to obtain adhesives of Examples 9 and 10. Examples 11-12 100 parts of the binary copolymer used in Example 1, 10 or 20 parts of the carbon black used in Example 9, amount of bound acrylonitrile: 40%, Mooney viscosity (ML 1+4 ) :80 and 30 parts of acrylonitrile copolymer were uniformly mixed in the same manner as in Example 1.
11 and 12 adhesives were obtained. Examples 13-14 Vinyl chloride-vinyl acetate-maleic acid terpolymer (vinyl chloride component: 78%, vinyl acetate component:
17%, maleic acid: 5%, average degree of polymerization: 500) 100
High surface area carbon black used in Example 1
Adhesives of Examples 13 and 14 were obtained by uniformly mixing 10 parts or 20 parts in the same manner as in Example 1. Comparative Examples 1 and 2 100 parts of the binary copolymer used in Example 1 and 10 or 30 parts of low surface area carbon black (conductive acetylene black, BET surface area: 130 m 2 /g) were mixed in the same manner as in Example 1. Comparative Examples 1 and 2
of adhesive was obtained. The table below shows each example and comparative example at 20°C.
The volume resistivity and adhesive force measured by the following method are shown respectively. As is clear from the table, each example exhibits excellent characteristics in all evaluation items. On the other hand, in Comparative Example 1, the volume resistivity was excessive even though the adhesion was good, and in Comparative Example 2, the results were opposite to those of Comparative Example 1. The adhesive strength of the adhesive was measured by the following method. That is, the adhesive was dissolved in a 1:1 mixed solvent of toluene/methyl ethyl ketone to make a 30% solution, which was applied to a 100 μ thick lead foil or conductive PVC board and dried at 80° C. for 30 minutes. After drying, conductive polyvinyl chloride with a thickness of 100μ is layered on the above lead or conductive PVC, and pressure is applied by heat pressing at 150℃.
An adhesive piece was prepared by pressing at 0.5 kg/cm for 4 minutes. This adhesive piece is 10mm wide and 100mm long.
The 180 degree peel strength between the two adherends was measured at a tensile speed of 100 mm/min, and the peel strength was calculated as the peel strength per 1 cm sample width.
【表】【table】
Claims (1)
重合体100重量部あたり10〜30重量部のBET表面
積が500m2/ｇ以上であり、JIS Ｋ 6221−1970に
よるDBP吸油量が250ml／100ｇ以上である高表面
積カーボンブラツクとからなる導電性接着剤。 ２ 塩化ビニル−酢酸ビニル系共重合体100重量
部あたり20〜100重量部の液状可塑剤を含む特許
請求の範囲第１項の導電性接着剤。 ３ 塩化ビニル−酢酸ビニル系共重合体として、
塩化ビニル成分：70〜95重量％、酢酸ビニル成
分：５〜30重量％、かつ重合度100〜900のものを
用いる特許請求の範囲第１項又は第２項の導電性
接着剤。 ４ 塩化ビニル−酢酸ビニル系共重合体として、
塩化ビニル成分：79〜92重量％、酢酸ビニル成
分：７〜20重量％、マレイン酸0.1〜10重量％、
重合度：100〜900のものを用いる特許請求の範囲
第１項又は第２項の導電性接着剤。[Claims] 1. A vinyl chloride-vinyl acetate copolymer, and a BET surface area of 10 to 30 parts by weight per 100 parts by weight of the copolymer is 500 m 2 /g or more, and has a DBP according to JIS K 6221-1970. A conductive adhesive made of high surface area carbon black with an oil absorption of 250ml/100g or more. 2. The conductive adhesive according to claim 1, which contains 20 to 100 parts by weight of a liquid plasticizer per 100 parts by weight of the vinyl chloride-vinyl acetate copolymer. 3 As a vinyl chloride-vinyl acetate copolymer,
The conductive adhesive according to claim 1 or 2, which uses a vinyl chloride component: 70 to 95% by weight, a vinyl acetate component: 5 to 30% by weight, and a degree of polymerization of 100 to 900. 4 As a vinyl chloride-vinyl acetate copolymer,
Vinyl chloride component: 79-92% by weight, vinyl acetate component: 7-20% by weight, maleic acid 0.1-10% by weight,
The conductive adhesive according to claim 1 or 2, wherein the conductive adhesive has a degree of polymerization of 100 to 900.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19276082A JPS5981366A (en) | 1982-11-02 | 1982-11-02 | Electrically conductive adhesive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19276082A JPS5981366A (en) | 1982-11-02 | 1982-11-02 | Electrically conductive adhesive |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5981366A JPS5981366A (en) | 1984-05-11 |
| JPS6144907B2 true JPS6144907B2 (en) | 1986-10-04 |
Family
ID=16296588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19276082A Granted JPS5981366A (en) | 1982-11-02 | 1982-11-02 | Electrically conductive adhesive |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5981366A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5143650A (en) * | 1990-11-13 | 1992-09-01 | Aster, Inc. | Electrophoretic coatable sealant compositions comprising polyvinyl chloride and furnace carbon black |
| US5223106A (en) * | 1990-11-13 | 1993-06-29 | Aster, Inc. | Method of using an electrophoretic coatable sealant composition in assembling automobile bodies |
| KR100429511B1 (en) * | 2001-03-19 | 2004-05-04 | 주식회사 엠에스비케이 | adhesive for shielding of electromagnetic wave and anti mildew and Manufacture Method |
| WO2010024094A1 (en) * | 2008-08-25 | 2010-03-04 | 日本ゼオン株式会社 | Thermally conductive pressure-sensitive adhesive composition, thermally conductive pressure-sensitive adhesive sheet, and electronic component |
-
1982
- 1982-11-02 JP JP19276082A patent/JPS5981366A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5981366A (en) | 1984-05-11 |
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