JPS6197360A - Electrically conductive composition - Google Patents

Abstract

PURPOSE:To provide an electrically conductive compsn. having excellent mechanical strength, moldability and flow characteristics, consisting of a synthetic resin and/or rubber, highly electrically conductive carbon black and carbon fiber. CONSTITUTION:5-100pts.wt. highly electrically conductive carbon black having a specific surface area of 100-400m<2>/g and hydrochloric acid absorption of 20-40ml/5g and 1-100pts.wt. carbon fiber are blended with 100pts.wt. synthetic resin (e.g. PE) and/or rubber (e.g. silicone rubber). USE:Earthed belt for static elimination, antistatic sheet, planar heat generator, coaxial cable, electrically conductive film, etc.

Description

[Detailed description of the invention] [Uses of 4 粱] The present invention provides a liquid with excellent fluidity that uses carbon black and charcoal as a liquid. It is an IA to the composition proboscis, and its assembly proboscis V construction (earth belt for air removal, vent for prevention of impurity, mouth-shaped heating element,
It is used for Tonagi's housing, coaxial cable, and 4-way film.

[Yame's technology]

Has it always been a disaster search or a gold mine? There are limited methods for producing the composition by incorporating it into a synthetic fiber or rubber-like substance.

However, unless commercially available powders of carbon or gold 4 are added to a multi-ff1K composite or a rubber-like material, a molded article of the desired highly conductive composition cannot be obtained.

However, when carbon powder is mixed with these, the fluidity and moldability are similar (and the molded products have the disadvantage of being inferior in strength.Also, there is a drawback that the molded products are inferior in strength. When it comes to production, there is a pond where these are powdered and shredded in the processing step 4, and the screws and barrels of the molding machine are the same. There is also a composition that uses a sword-pone black and a stylus for the σ, but this one (with a specific resistance of g2.1 x 10")
〜5.4 x 103ncm There was a te, but I didn't work on the one with 4 back notes. (-1+Patent Publication No. 48-77595, Publication No. 554-56200) An accent that is easy to manufacture and mold without compromising privacy! d: Provides the composition of Shohin Tun Note, which is divided into J Note.

[Means for solving the gap d]

The present invention is characterized by a sweet and sour rib and/or rubber 100 parts, ratio e
, surface + AI 00-400 m”/l and salt wagJt
20-40 rtt1151 National College of Technology dL note carbon black (hereinafter referred to as bureau guidance note pu2tsuku) 5-100 nails and carbon fiber 1-100 direct contact department ratio of the paper I! The injection valve is turned off.

Hereinafter, the present invention will be explained with reference to 'C' and #$.

The uninvented #4 synthetic material and/or material, rubber-like proboscis (hereinafter referred to as polymer), is used as "C + engineering rfT", and for the material, C is l'ff1J. There is no limit to this.Specific examples include ill polyethylene, ethylene-vinyl acetate coelectrolyte,
Polypropylene, polystyrene, polyvinyl chloride, polydp R-vinyl, polymethacrylate, acrylonitrile-butadiene-styrene co-aggregation (ABS), polyphenylene oxide (ppo), A-note PPo, polycarbonate, polyacetal polyamide 2) Phenol PTL Urinary test fat, melamine II, Ehokin Akishin, Alkyd Shohushi, Unsaturated polyester 4H Posen's Swallow hardening arks f31 natural'=r
rubber, silicone rubber, polychloroprene, polyinzolene-isozotylene co-conductor, styrene-butadiene residual combination, ethylene-propylene residual combination, butadiene-
Rubber pads such as acrylonitrile residual salt combination, ethylene-butadiene block coelectric combination, and polycrethane are used.

Next, the constituent component of the present invention, the technical black, was previously proposed by the non-inventive applicant! Application No. 61831 of the 1970s with the title "Acetylene Glucose and Method for Producing the Same" can be used for practical purposes; 1
There is no work.

In addition, the high 4 & injection plug used in the present invention is of a ratio of 100 to 4oo-2/gx aia'an foot 2ON40go 1511, and contains 7FrJ hydrocarbons in the air acetylene gas. It can be treated by continuous thermal decomposition with or without the presence of an acid aerobic chamber and a mixed gas flow of water vapor.

In the present invention, the specific surface area and surface area of the "C=conductor" black are limited as described above (the reason is as follows).

Hibo side horizontal 10 (E12/, less than 9, salt-water absorption 20d1
Even if you add 51 A, synthetic cushions, and rubber KfS, it will still be 4.
Note that the sword is not light, but the ratio is lff1 400-%2
This is because if the weight exceeds 40m115g, the synthetic resin or rubber will have poor fluidity when mixed and molded.

In the present invention, 1 eppolymer is 100% straight, while Naohiro black is 5 to 100%, preferably 10% to 100%.
Assigned to the 60th senior division. However, in the 5th direct division A, the 4 precepts of composition were inferior, and the score was 100 points. Koerutojin FJL Note is large, but Seikin Note is Koi (Naru), so it is uniformly mixed.
This is not preferable because the molded 710 injection will be defective.

Next, a commercially available product is used as the minsho fiber, which is a component of the present invention. Commercially available products include polyacrylonitrile and pitch@'ft charcoal 1A fiber, which is made into an infusible and then fired, and charcoal 1A fiber, which is made by thermally decomposing beautifying hydrogen gas and is heated to a vapor phase yield of 7℃. There is also charcoal 31c, which has been converted to charcoal, and these can be used alone or in combination.

The blending ratio of these carbon II fibers is adjusted to 100 to 100%, preferably 1 to 100, preferably 15 to 100%.
It is 40 straight parts. 1) It is not preferable to improve the mechanical shallowness of the 2nd part, which is aimed at improving the mechanical shallowness of the 100aEf part, and the fluidity will be completely degraded if it exceeds 100aEf part.

When the composite material of the present invention is made of plastic, polymer, high 4
゛1 note black and charcoal iron fiber 4, plasticizer, photonic agent, antioxidant, I1gt station stabilization, beak crack ~ flame retardant,
We distribute auxiliary agents such as auxiliary agents, ultraviolet filtration agents, and other auxiliary agents depending on the price, including tanbo-type mixers, V-type mixers, Hensiel mixers,
It can be produced by stirring and mixing in a Banbury mixer, a kneader, and a rotor in a kneader and a rotor.

Depending on the auxiliary agent 櫨bini and the auxiliary agent, there are various physical properties such as hard or soft citrus.

In addition, when the uninvented composition is made into a molded product by D-roeing,
The composition may be made into a pellet and used as pellets, or it may be made by injection using an extrusion machine. ! It may also be directly molded using a molding machine such as a press, roll, or rotation.

[Example]

The present invention will be explained in detail below.

Implementation Ga 1-5 and Comparison Ga 1-4 Panoramic view 2.4n@, inner diameter 0.4 ffi, diameter surface of the discharge port 2
In a five-shoulder acetylene gas pyrolysis furnace, the inner wall up to υ and 6 m from the top of the furnace was constructed of water-cooled glossy clay (K), and the inner wall of the pond was constructed of firebrick.

Two pyrolyzers were placed in the top of the second pyrolysis furnace.
From the nozzle inside, IIR 10-ONm"/HR 4/cm2!! Tempered water vapor (1 degree 150'C) 5
, LI Nm3/HR choreography gas 15-ONm3/HR
f is supplied, and acetylene gas is co-supplied from the outside current part of the nozzle 2i'g, and acetylene gas,
After reacting with water vapor, the acetylene black produced was cooled and collected in a conventional manner to obtain 4 sulfur injection black. Compared to its physical properties? 5! Table 1 shows the physical properties of the by-product Dekutsuta Japan EC (closed) part name "Ketjen Black" used as a moth.

Table 1 (Note 1) Measurement of the physical properties of the first Ebisu (according to the quadratic method).

tlJ P)l +++ JIS p, -14691
2) Specific surface area-1-B g 'I' method 13) Hydrochloric acid @
ff1l ---, TIS K-1469 (41 large # -
--, T Engineering 8 K-1469157 Average particle size - 11 Measured using a transmission electron microscope 16) Containing gold impurities --- Metallic impurities in carbon black were extracted with hydrochloric acid and iA@ The dried material was determined to have a constant t0 by atomic absorption spectrometry.Manufacturing of pot barrel Mt injection composition The polymer, high-strength black and Rg filling crucible were self-assembled at the transition point of the second coat to cause crosstalk.

In addition, for every 100 gf of polymer, 2
,6-dibutyl-4-methylphenol (BHT)
0.5 shift part, Arin song tri(nonyl 7 enyl) ester (TNP) 0.5 ward m capital, stearin as a lubricant, put Aring 1.0 shuku in the house, and this is 1 Snake 150CK
A sickle was mixed for 8 minutes at Panpari Mixture on 1 and 7E with Bi added, and a 7JO was mixed for 2 minutes. This composition was formed into a sheet on an 8-inch roll and ground to create a melt 70-index and volume specific resistance. For comparison, by-product carbon was used in place of high-conductivity black, and the same ratio as in the actual experiment was carried out.

These vlJ notes are shown in the ttg2 table.

(Note 1) The one shown in Table 2! The following material was used for the r.

fil Polystyrene...Aiki Kagaku Kogyo (closed), product name: ``Styrene HIII-5J (styrene HIII-5J) (styrene type) (2) ABB...... lJt Gas Chemical Engineering Chestnut (closed), product name: ``Denka ABSOFJ (South flow type).

131 88 Block polymer... - Vaporized handicraft industry (
Closed) Styrene-phtadiene block co-electronic rubber, trade name: "Denka 5TR1602J."

(4) By-product carbon...Japan EC (closed), part name r Ketchen ECJ.

(57 Carbon Fiber PAN Yarn: Toshiku Kyushu), Product Name: Trading Card T-OC18A-0 [J5U Weight: 3a Todoroki's Chopped Fiber.

Pitch yarn: Kurehakaji (closed), product Name: “Creca C-203SJ” 3u long graphite chopped fiber.

(Note 2) The X inside the machine indicates kneading Komachi.

(Note 3) The physical properties in Table 2 were measured by the following method.

il+ Melt 70-index according to JISK7210, 1 roll 200'0. Measurements were made under 5 different loads.

(2) Volume resistivity sheet 18 [1”0 (7) Betsuro, press 5X at a pressure of 100/12, press a 2 x 20 x 711 M specimen, equip it with a digital multimeter (Takeda), Ffj product name 'rR-6856) Ic'c measurement Q was carried out.

Examples 6 to 8, Comparative Examples 5 to 7 Is! at pH 1 to 5! The roughened high-conductivity frame black was mixed at the 6th memorial service, and the 4th grade composition was attended.
In the case of Fj Examples 6 to 7 and Comparative Rows 5 to 6, the wires were crossed using a Banbury mixer at Hama 1, and sheets were created by rolls. This sheet'iis.

OX 25 or 1 press 7+1] It was made into a sheet with a thickness of 1.51.

In addition, for the implementation Ga 8 and the comparison vRR2O Iso, the crosstalk at Panbury Mikite is 180″C, and the pond is the implementation Garo~7
A sheet with a thickness of 2.0 mm was obtained in the same manner as above.

These physical properties are shown in Table 3.

(Pressure 1) The following materials were used for Tani 4 in Table 3.

+l) Chloroprenoco 9mu...Denki Kagaku Koka Co., Ltd., trade name: Denka Chloroblenz 9mu M-404 (21 styrene detaciene rubber...Nippon Zeon Co., Ltd.)
, Product name: ``Nilaball 1502J +31 Ethylene Vinyl Acetate Kyoden Goubon...Nippon Unicar (red), Product name: ``NUC'-3145J (4) Anti-aging agent A......Niuchi #Ko ( Closed)
, Product name: "TSKURAK 224" (5r Anti-aging agent B...... Large circle fr1
4 (floor), product name "Tense 9-22J (main ingredient 2-mercaptoimidashi) (Note 2) The W note of the composition of the third party was measured by the following method. According to

(1) Volumetric solid stomach resistance...According to JIS K 7210.

(2) Moue viscosity...JISK6300K
I was disappointed.

(3) Tensile strength, elongation, hardness, pressure-water elongation, and impact resilience 4 were all in accordance with JIS K 6301.

〔Effect of the invention〕

(1) The composition of the present invention has a high grade S6 purity and contains a high-tech black color, so it is 4-4cm thick, and when it is compacted, it produces a beautiful molded product with a 1-width neck shape. is obtained.

+2) In addition, when it comes to molding, a machine specializing in tensile strength can perform the molding process without having to perform a single injection! I! It has the advantage of being easily accessible.

Claims (1)

[Claims] Synthetic resin and/or rubber 100 parts by weight, specific surface area 100
~400m^2/g and hydrochloric acid absorption amount 20~40ml/5
A conductive composition comprising 5 to 100 parts by weight of highly conductive carbon black and 1 to 100 parts by weight of carbon fiber.