JPH0534377B2 - - Google Patents
Info
- Publication number
- JPH0534377B2 JPH0534377B2 JP58117765A JP11776583A JPH0534377B2 JP H0534377 B2 JPH0534377 B2 JP H0534377B2 JP 58117765 A JP58117765 A JP 58117765A JP 11776583 A JP11776583 A JP 11776583A JP H0534377 B2 JPH0534377 B2 JP H0534377B2
- Authority
- JP
- Japan
- Prior art keywords
- carbon black
- resin
- resin composition
- manufactured
- present
- 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 - Lifetime
Links
- 239000006229 carbon black Substances 0.000 claims description 33
- 239000011342 resin composition Substances 0.000 claims description 17
- 238000010521 absorption reaction Methods 0.000 claims description 11
- 229910001385 heavy metal Inorganic materials 0.000 claims description 9
- 229920005992 thermoplastic resin Polymers 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 7
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 241000872198 Serjania polyphylla Species 0.000 claims 1
- 235000019241 carbon black Nutrition 0.000 description 30
- 229920005989 resin Polymers 0.000 description 12
- 239000011347 resin Substances 0.000 description 12
- 239000008188 pellet Substances 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 238000001746 injection moulding Methods 0.000 description 4
- 239000000314 lubricant Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 241000282320 Panthera leo Species 0.000 description 3
- 239000003963 antioxidant agent Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229920001903 high density polyethylene Polymers 0.000 description 3
- 239000004700 high-density polyethylene Substances 0.000 description 3
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 2
- 230000003078 antioxidant effect Effects 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 229910052720 vanadium Inorganic materials 0.000 description 2
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 2
- 239000004808 2-ethylhexylester Substances 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229920002943 EPDM rubber Polymers 0.000 description 1
- OWYWGLHRNBIFJP-UHFFFAOYSA-N Ipazine Chemical compound CCN(CC)C1=NC(Cl)=NC(NC(C)C)=N1 OWYWGLHRNBIFJP-UHFFFAOYSA-N 0.000 description 1
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- 229930182556 Polyacetal Natural products 0.000 description 1
- 239000005062 Polybutadiene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- KRADHMIOFJQKEZ-UHFFFAOYSA-N Tri-2-ethylhexyl trimellitate Chemical compound CCCCC(CC)COC(=O)C1=CC=C(C(=O)OCC(CC)CCCC)C(C(=O)OCC(CC)CCCC)=C1 KRADHMIOFJQKEZ-UHFFFAOYSA-N 0.000 description 1
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 description 1
- 239000006230 acetylene black Substances 0.000 description 1
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 description 1
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 1
- 229920001893 acrylonitrile styrene Polymers 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 239000006232 furnace black Substances 0.000 description 1
- 239000012760 heat stabilizer Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229920000092 linear low density polyethylene Polymers 0.000 description 1
- 239000004707 linear low-density polyethylene Substances 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920001179 medium density polyethylene Polymers 0.000 description 1
- 239000004701 medium-density polyethylene Substances 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- FTQWRYSLUYAIRQ-UHFFFAOYSA-N n-[(octadecanoylamino)methyl]octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(=O)NCNC(=O)CCCCCCCCCCCCCCCCC FTQWRYSLUYAIRQ-UHFFFAOYSA-N 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- -1 polypropylene, ethylene-propylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- SCUZVMOVTVSBLE-UHFFFAOYSA-N prop-2-enenitrile;styrene Chemical compound C=CC#N.C=CC1=CC=CC=C1 SCUZVMOVTVSBLE-UHFFFAOYSA-N 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000006234 thermal black Substances 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Conductive Materials (AREA)
Description
〔技術分野〕
本発明は熱可塑性樹脂にカーボンブラツクを配
合した導電性組成物の改良に関するものである。
〔従来技術〕
従来、熱可塑性樹脂にカーボンブラツクを配合
した導電性樹脂組成物は知られている。この場
合、カーボンブラツクとしては、通常、アセチレ
ンブラツク、サーマルブラツク、フアーネスブラ
ツク等が用いられており、その添加量に応じた導
電性を示す樹脂組成物を与えるが、高い導電性の
組成物を得るには、相当多量に配合する必要があ
る。従つて、従来のカーボンブラツクを用いて高
導電性の樹脂組成物を得ようとすると、樹脂の持
つ種々のすぐれた特性が損われるという欠点があ
る。即ち、従来のカーボンブラツクでは、多量の
配合により所望の導電性を得ることができるもの
の、得られる樹脂組成物は、その機械的強度が低
下すると共に、粘性が著しく増加して溶融流動性
が低下し、押出しや射出成形加工の著しく悪いも
のとなり、実用性の著しく劣つたものになるとい
う欠点があつた。一方、導電性の高いカーボンブ
ラツクとして、ケツチエンブラツクEC（ライオン
アクゾ(株)社製）が知られており、このものを配合
した樹脂組成物は高導電製を与えるが、しかしな
がら、このものは樹脂に対する分散性が悪いとい
う欠点を有している。
〔目的〕
本発明は、従来のカーボンブラツク配合樹脂の
場合とは異なり、高導電性でありながら樹脂の機
械的強度の低下が少なく、かつ押出しや射出成形
加工の容易な導電性樹脂組成物を提供することを
目的とする。
〔構成〕
即ち、本発明によれば、熱可塑性樹脂にカーボ
ンブラツクを配合した組成物において、該カーボ
ンブラツクとしてDBP吸油量が400〜600ml／100
ｇでかつ重金属含有量が500ppm以下の脱灰処理
を受けていない導電性カーボンブラツクを用いる
とともに、該カーボンブラツクの配合割合が樹脂
組成物中２〜30重量％の割合であることを特徴と
する導電性樹脂組成物が提供される。
本発明においては、カーボンブラツクとして、
DBP吸油量が400ml／100ｇ以上でかつ重金属含
量が500ppm以下の脱灰処理を受けていない導電
性カーボンブラツクを用いることを特徴とする
が、このようなカーボンブラツクは樹脂に練込ん
だ場合に、その組成物に通常のカーボンブラツク
に比して、より高い導電性を与える。
本発明で用いるカーボンブラツクにおいては、
そのDBP吸油量は400ml／100ｇ以上であるが、
その吸油量がこれより小さくなると、導電性の高
い樹脂組成物を得るには多量配合しなければなら
ず、その分樹脂の特性が損われる傾向がある。本
発明で用いるカーボンブラツクにおいては、
DBP吸油量の上限は特に制約されないが、製造
上の容易さからは700ml／100ｇ以下が適当であ
り、本発明の場合、そのDBP吸油量は、殊に、
400〜600ml／100ｇの範囲に規定するのが好まし
い。本発明で用いるカーボンブラツクにおいて
は、前記DBP吸油量の規定と関連して、その重
金属含有量を500ppm以下に保持する。この場合、
重金属としては、鉄、バナジウム、マンガン、ニ
ツケル、クロム、銅、コバルト等があるが本発明
の場合、それらの重金属総含有量を500ppm以下、
より好ましくは、鉄分250ppm以下、バナジウム
分100ppm以下、ニツケル分50ppm以下に規定す
る。カーボンブラツク中の重金属含有量が
500ppmより多くなると、樹脂が重金属イオンの
影響を受け、樹脂にカーボンブラツクを練込んだ
際のカーボンブラツクの分散性が悪くなり、樹脂
組成物の成形加工性が著しく悪くなる。
なお、本願明細書でいうDBP吸油量は、
ASTMD2414−79に規定された吸油量を意味す
る。
本発明で用いる熱可塑性樹脂としては従来公知
の種々のものがあり、特に制約されないが、その
具体例としては、例えば、低、中及び高密度ポリ
エチレン、線状低密度ポリエチレン、ポリプロピ
レン、エチレン−プロピレン共重合体、エチレン
−酢酸ビニル共重合体、エチレン−アクリル酸エ
ステル共重合体、アクリロニトリル−ブタジエン
−スチレン三元共重合体、ポリスチレン、アクリ
ロニトリル−スチレン共重合体、ニトリルゴム、
ブタジエンゴム、スチレン−ブタジエンゴム、エ
チレン−プロピレン−ジエンゴム、シリコンゴ
ム、熱可塑性ポリウレタン樹脂、ポリアミド樹
脂、ポリエステル樹脂、ポリカーボネート、ポリ
塩化ビニル、ポリアセタール樹脂等が挙げられ
る。
本発明において、樹脂に対するカーボンブラツ
クの配含量は、使用する樹脂の種類や使用目的に
より異なるが、極端に少なければ導電性付与効果
が少なく、逆に多すぎると、その添加効果は飽和
してしまい、また樹脂への均一練込みが困難にな
るため、樹脂組成物100重量部に対し、通常、２
〜30重量部、好ましくは４〜20重量部にするのが
よい。また、本発明の組成物においては、熱可塑
性樹脂に普通に用いられている酸化防止剤、耐熱
安定剤、滑剤、難撚剤等の助剤を適宜用いること
ができる。
熱可塑性樹脂にカーボンブラツクを配合するた
めには、通常の方法、例えば、バンバリーミキサ
ー、インターミツクス等のバツチ式混練機及び連
続混練機を用いる方法により行うことができる。
〔効果〕
本発明においては、少ないカーボンブラツク配
合量で高い導電性の樹脂組成物を得ることができ
るので、従来の導電性樹脂組成物の場合とは異な
り、その機械的強度及び成形加工性はすぐれてい
る。従つて、本発明の導電性樹脂組成物は種々の
用途に適用することができ、例えば、高電圧ケー
ブル、イグニシヨンコード、面発熱体、面スイツ
チ等の導電性材料の他、電磁波障害を避ける必要
のある電子機器やIC等の包装材料、さらにビデ
イオデイスク成形用材料、永久帯電防止性材料等
への応用等、多くの分野において利用することが
できる。
〔実施例〕
次に本発明を実施例によりさらに詳細に説明す
る。実施例で用いた単位「％」は重量％を表わ
す。体積固有抵抗は日本ゴム協会規格SRIS 2301
により、アイゾツト衝撃強度はJIS Ｋ−7110記載
の方法により規定した。
また、実施例において用いたカーボンブラツク
はいずれも脱灰処理を受けていないもので、その
種類及び性状を第１表に示す。第１表において、
Ｃは比較品（ライオンアクゾ製、商品名ケツチエ
ンブラツクEC）である。
[Technical Field] The present invention relates to the improvement of conductive compositions containing carbon black in a thermoplastic resin. [Prior Art] Conventionally, conductive resin compositions in which carbon black is blended with a thermoplastic resin are known. In this case, as the carbon black, acetylene black, thermal black, furnace black, etc. are usually used, and a resin composition that exhibits conductivity depending on the amount added is obtained, but a highly conductive composition is To obtain this, it is necessary to mix a considerably large amount. Therefore, when trying to obtain a highly conductive resin composition using conventional carbon black, there is a drawback that various excellent properties of the resin are impaired. In other words, with conventional carbon black, desired conductivity can be obtained by blending a large amount, but the resulting resin composition has a decrease in mechanical strength and a marked increase in viscosity, resulting in a decrease in melt fluidity. However, it had the disadvantage that extrusion and injection molding processes were extremely poor, making it extremely impractical. On the other hand, Ketsuen Black EC (manufactured by Lion Akzo Co., Ltd.) is known as a highly conductive carbon black, and a resin composition containing this material provides high conductivity. It has the disadvantage of poor dispersibility in resins. [Purpose] The present invention provides a conductive resin composition that is highly conductive, has little reduction in mechanical strength of the resin, and is easy to process by extrusion or injection molding, unlike conventional resins containing carbon black. The purpose is to provide. [Structure] That is, according to the present invention, in a composition in which carbon black is blended with a thermoplastic resin, the carbon black has a DBP oil absorption of 400 to 600 ml/100.
conductive carbon black that has not been subjected to deashing treatment and has a heavy metal content of 500 ppm or less, and is characterized in that the blending ratio of the carbon black is 2 to 30% by weight in the resin composition. A conductive resin composition is provided. In the present invention, as carbon black,
It is characterized by using conductive carbon black that has not been subjected to deashing treatment and has a DBP oil absorption of 400ml/100g or more and a heavy metal content of 500ppm or less, but when such carbon black is kneaded into resin, It gives the composition a higher electrical conductivity than conventional carbon black. In the carbon black used in the present invention,
Its DBP oil absorption is over 400ml/100g,
If the oil absorption amount is smaller than this, a large amount must be blended in order to obtain a highly conductive resin composition, and the properties of the resin tend to be impaired accordingly. In the carbon black used in the present invention,
The upper limit of DBP oil absorption is not particularly restricted, but from the viewpoint of ease of production, 700ml/100g or less is appropriate, and in the case of the present invention, the DBP oil absorption is particularly
It is preferable to specify the range of 400 to 600 ml/100 g. In the carbon black used in the present invention, the heavy metal content is maintained at 500 ppm or less in relation to the above-mentioned DBP oil absorption regulation. in this case,
Heavy metals include iron, vanadium, manganese, nickel, chromium, copper, cobalt, etc. In the case of the present invention, the total heavy metal content is 500 ppm or less,
More preferably, the iron content is 250 ppm or less, the vanadium content is 100 ppm or less, and the nickel content is 50 ppm or less. Heavy metal content in carbon black
If the amount exceeds 500 ppm, the resin will be affected by heavy metal ions, and the dispersibility of carbon black will deteriorate when carbon black is kneaded into the resin, resulting in significantly poor moldability of the resin composition. In addition, the DBP oil absorption amount referred to in the specification of this application is
It means the oil absorption amount specified in ASTMD2414-79. There are various conventionally known thermoplastic resins used in the present invention, and there are no particular restrictions, but specific examples thereof include low, medium and high density polyethylene, linear low density polyethylene, polypropylene, ethylene-propylene. copolymer, ethylene-vinyl acetate copolymer, ethylene-acrylic ester copolymer, acrylonitrile-butadiene-styrene terpolymer, polystyrene, acrylonitrile-styrene copolymer, nitrile rubber,
Examples include butadiene rubber, styrene-butadiene rubber, ethylene-propylene-diene rubber, silicone rubber, thermoplastic polyurethane resin, polyamide resin, polyester resin, polycarbonate, polyvinyl chloride, polyacetal resin, and the like. In the present invention, the content of carbon black in the resin varies depending on the type of resin used and the purpose of use, but if it is extremely small, the effect of imparting conductivity will be small, and if it is too large, the effect of adding carbon black will be saturated. Also, since it becomes difficult to uniformly knead into the resin, it is usually added 2 parts per 100 parts by weight of the resin composition.
-30 parts by weight, preferably 4 to 20 parts by weight. In addition, in the composition of the present invention, auxiliary agents such as antioxidants, heat stabilizers, lubricants, and twist retardants that are commonly used in thermoplastic resins can be used as appropriate. Carbon black can be blended into the thermoplastic resin by a conventional method, for example, using a batch kneader such as a Banbury mixer or an intermix or a continuous kneader. [Effect] In the present invention, a highly conductive resin composition can be obtained with a small amount of carbon black, so unlike conventional conductive resin compositions, its mechanical strength and moldability are improved. It is excellent. Therefore, the conductive resin composition of the present invention can be applied to various uses, such as conductive materials for high voltage cables, ignition cords, surface heating elements, surface switches, etc., as well as for preventing electromagnetic interference. It can be used in many fields, such as packaging materials for electronic devices and ICs, as well as video disc molding materials, permanently antistatic materials, etc. [Example] Next, the present invention will be explained in more detail with reference to Examples. The unit "%" used in the examples represents weight %. Volume resistivity is Japan Rubber Association standard SRIS 2301
Accordingly, Izot impact strength was defined by the method described in JIS K-7110. Furthermore, none of the carbon blacks used in the Examples were subjected to deashing treatment, and their types and properties are shown in Table 1. In Table 1,
C is a comparative product (manufactured by Lion Akzo, trade name: KETSUCHEN BLACK EC).
【表】
実施例 １
各種の熱可塑性樹脂と第１表に記載のカーボン
ブラツクをそれぞれ所定量、酸化防止剤（チバガ
イギー製、商品名イルガノツクス1010）1.0％及
び滑剤（ライオンアクゾ製、商品名アーモワツク
スEBSパウダー）0.5％をシヨーインターミツク
ス（日立田浦製K1型）で混練した後、８インチ
の２本ロールミル（西村工機製）及び角ペレタイ
ザー（朋来鉄工所製、GHP型）を用いてペレツ
トにした。
このペレツトを150Kg／cm2の圧力で150×250×
１mm厚のプレス板Ａ、または射出成形機（日精樹
脂工業製、TS−150型）により80×70×３mm厚の
平板Ｂに成形し、その体積固有抵抗を測定した。
その結果を第２表に示す。[Table] Example 1 Prescribed amounts of various thermoplastic resins and carbon black listed in Table 1, 1.0% antioxidant (manufactured by Ciba Geigy, trade name Irganox 1010) and lubricant (manufactured by Lion Akzo, trade name Armowax EBS). Powder) 0.5% was kneaded using Sho Intermix (K1 type, manufactured by Hitachi Taura), and then made into pellets using an 8-inch two-roll mill (manufactured by Nishimura Koki) and a square pelletizer (manufactured by Horai Tekkosho, type GHP). . The pellets were processed 150×250× at a pressure of 150Kg/ cm2.
A press plate A with a thickness of 1 mm or a flat plate B with a thickness of 80 x 70 x 3 mm was formed using an injection molding machine (manufactured by Nissei Jushi Kogyo Co., Ltd., Model TS-150), and the volume resistivity thereof was measured.
The results are shown in Table 2.
【表】【table】
【表】
実施例 ２
ポリ塩化ビニル（日本ゼオン製、商品名 ゼオ
ン103FP）50.5％、可塑剤（大八化学製、商品名
TOTM）40％、第１表に記載したカーボンブ
ラツク８％、安定剤1.0％及び滑剤0.5％を実施例
１と同様にしてペレツト化し、次いで射出成形に
より80×70×３mm厚の平板をつくり、その体積固
有抵抗を測定した。その結果を第３表に示す。[Table] Example 2 Polyvinyl chloride (manufactured by Nippon Zeon, trade name Zeon 103FP) 50.5%, plasticizer (manufactured by Daihachi Kagaku, trade name
TOTM) 40%, carbon black 8%, stabilizer 1.0% and lubricant 0.5% listed in Table 1 were pelletized in the same manner as in Example 1, and then injection molded to make a flat plate with a thickness of 80 x 70 x 3 mm. Its volume resistivity was measured. The results are shown in Table 3.
【表】
実施例 ３
ABS（三菱モンサント化成製、タフレツクスＮ
−7710）と第１表に記載したカーボンブラツクの
配合割合を変えて、体積固有抵抗とアイゾツト衝
撃強度との関係を測定した。その結果を第４表に
示す。[Table] Example 3 ABS (manufactured by Mitsubishi Monsanto Chemical, Toughflex N
-7710) and the carbon black listed in Table 1, the relationship between the volume resistivity and the Izot impact strength was measured. The results are shown in Table 4.
【表】
実施例 ４
HDPE（旭化成製、サンテツクスＳ−360）と第
１表に記載したカーボンブラツクとの配合割合を
変えて、実施例１と同様にしてペレツトをつく
り、次いでそのペレツトを温度245℃、1100Kg／
cm2の圧力で12秒間、55℃に保温した渦巻状金型に
射出し、その金型に入り込んだ長さを測定した。
同時に体積固有抵抗を測定し、両者の関係を求め
た。その結果を第５表に示す。[Table] Example 4 Pellets were made in the same manner as in Example 1 by changing the blending ratio of HDPE (Santex S-360, manufactured by Asahi Kasei) and the carbon black listed in Table 1, and then the pellets were heated to a temperature of 245 ℃, 1100Kg/
The material was injected into a spiral mold kept at 55°C for 12 seconds at a pressure of cm 2 , and the length of penetration into the mold was measured.
At the same time, the volume resistivity was measured and the relationship between the two was determined. The results are shown in Table 5.
【表】
実施例 ５
第１表に示したカーボンブラツクを用い、これ
らを第６表に示したように混合して、400〜420
ml／100ｇのDBP吸油量と180〜1240ppmの重金
属含有量を有する各種のカーボンブラツクを調整
した。このカーボンブラツク8.0％、高密度ポリ
エチレン（旭化成(株)製、商品名：サンテツクＳ−
360）90.5％、実施例１で示した酸化防止剤1.0％
及び実施例１で示した滑剤0.5％を、実施例１と
同様にして、混練し、ペレツト化した。
次に、このようにして得られたペレツトを、実
施例１で示した射出成形機により、温度245℃、
射出圧力1100Kg／cm2、金型温度55℃でうず巻状金
型に射出し、その金型に入り込んだ長さ、即ち、
流れ特性を測定した。その結果を表−６にあわせ
て示す。
なお、前記の射出条件で実施例１と同様にし
て、前記で得た各組成物（ペレツト）を80×70×
３mmの平板に成形し、その体積固有抵抗を測定し
た結果、いずれの成形物も2.0〜2.3×103Ω・cmの
測定値を示すことが確認された。[Table] Example 5 Using the carbon blacks shown in Table 1, they were mixed as shown in Table 6, and 400 to 420
Various carbon blacks with DBP oil absorption of ml/100g and heavy metal content of 180-1240ppm were prepared. This carbon black 8.0%, high-density polyethylene (manufactured by Asahi Kasei Corporation, product name: Suntec S-
360) 90.5%, antioxidant 1.0% as shown in Example 1
and 0.5% of the lubricant shown in Example 1 were kneaded and pelletized in the same manner as in Example 1. Next, the pellets thus obtained were molded using the injection molding machine shown in Example 1 at a temperature of 245°C.
Injected into a spiral mold at an injection pressure of 1100 Kg/cm 2 and a mold temperature of 55°C, the length of the injection into the mold, i.e.
The flow characteristics were measured. The results are also shown in Table 6. In addition, in the same manner as in Example 1 under the above injection conditions, each composition (pellet) obtained above was 80×70×
As a result of molding into a 3 mm flat plate and measuring its volume resistivity, it was confirmed that each molded product exhibited a measured value of 2.0 to 2.3×10 3 Ω·cm.
【表】【table】
【表】
以上の結果から、本発明の場合は、低められた
カーボンブラツク配合量で導電性が高く、かつ機
械的強度及び成形加工性のよい樹脂組成物を得る
ことができる。[Table] From the above results, in the case of the present invention, a resin composition with high conductivity, good mechanical strength and moldability can be obtained with a reduced carbon black content.
Claims (1)
組成物において、該カーボンブラツクとして
DBP吸油量が400〜600ml／100ｇでかつ重金属含
有量が500ppm以下の脱灰処理を受けていない導
電性カーボンブラツクを用いるとともに、該カー
ボンブラツクの配合割合が樹脂組成物中２〜30重
量％の割合であることを特徴とする導電性樹脂組
成物。1 In a composition in which carbon black is blended with a thermoplastic resin, as the carbon black
Conductive carbon black with a DBP oil absorption of 400 to 600 ml/100 g and a heavy metal content of 500 ppm or less that has not been subjected to deashing treatment is used, and the blending ratio of the carbon black is 2 to 30% by weight in the resin composition. 1. A conductive resin composition characterized in that the ratio is
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11776583A JPS608335A (en) | 1983-06-28 | 1983-06-28 | Electrically conductive resin composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11776583A JPS608335A (en) | 1983-06-28 | 1983-06-28 | Electrically conductive resin composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS608335A JPS608335A (en) | 1985-01-17 |
| JPH0534377B2 true JPH0534377B2 (en) | 1993-05-21 |
Family
ID=14719765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11776583A Granted JPS608335A (en) | 1983-06-28 | 1983-06-28 | Electrically conductive resin composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS608335A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6031539A (en) * | 1983-07-29 | 1985-02-18 | Toshiba Corp | Electrically conductive organic composition having ptc characteristics |
| JPH06889B2 (en) * | 1985-10-04 | 1994-01-05 | 東レ株式会社 | Polyphenylene sulfide resin composition |
| JPH0813902B2 (en) * | 1987-07-02 | 1996-02-14 | ライオン株式会社 | Conductive resin composition |
| KR102179471B1 (en) | 2017-10-30 | 2020-11-16 | 주식회사 엘지화학 | Conductive polyarylene sulfide resin composition |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57172555A (en) * | 1981-04-17 | 1982-10-23 | Matsushita Electric Ind Co Ltd | Disk type recording medium and its manufacture |
| JPS59191153A (en) * | 1983-04-14 | 1984-10-30 | Victor Co Of Japan Ltd | Recording medium of high density information signal |
-
1983
- 1983-06-28 JP JP11776583A patent/JPS608335A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57172555A (en) * | 1981-04-17 | 1982-10-23 | Matsushita Electric Ind Co Ltd | Disk type recording medium and its manufacture |
| JPS59191153A (en) * | 1983-04-14 | 1984-10-30 | Victor Co Of Japan Ltd | Recording medium of high density information signal |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS608335A (en) | 1985-01-17 |
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