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Conductive rubber composition, conductive polymer composition, conductive vulcanized rubber, conductive rubber roller and conductive rubber band

A technology of conductive polymer and rubber composition, applied in conductive materials, conductive materials, conductors, etc., can solve problems such as side reactions, compression set deterioration, etc., achieve good ozone resistance, relieve compression set, and compress permanent small deformation effect

Inactive Publication Date: 2002-08-28
SUMITOMO RUBBER IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] In addition, in order to reduce the specific volume resistance, a quaternary ammonium salt containing halogen (especially chlorine) such as perchlorate ion or chloride ion is mixed into a conductive polymer composition, or a halogen (especially chlorine) is mixed with epichlorohydrin rubber. In particular, in the case of conductive polymers such as chlorine, there is a problem that the compression set is significantly deteriorated due to side reactions caused by halogens such as chlorine.

Method used

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  • Conductive rubber composition, conductive polymer composition, conductive vulcanized rubber, conductive rubber roller and conductive rubber band
  • Conductive rubber composition, conductive polymer composition, conductive vulcanized rubber, conductive rubber roller and conductive rubber band

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～ Embodiment 5

[0122] Mix the above-mentioned non-halogen quaternary ammonium salt in the EO-PO-AGE terpolymer and nitrile rubber shown in Table 1 according to the ratio shown in Table 1, and prepare the conductive rubber composition according to the above method. test piece.

Embodiment 11

[0136] Embodiment 11, comparative example 12 and 13 are based on the proportioning described in table 5 and table 6, add quaternary ammonium salt, 1,4-butanediol and silicon series surfactant in polyether polyol, with general After stirring by the mixer, the raw materials are uniformly dispersed. After dispersion, defoaming treatment was performed under reduced pressure, and the isocyanate and reaction catalyst were added thereto, and then poured into a mold for producing a test piece for physical property evaluation. Finally, curing was carried out at 80° C. for 12 hours to prepare the same test piece for evaluation of physical properties.

[0137] Complex reagent

[0138] Complex reagent

Embodiment 6～ Embodiment 11

[0140] As a non-halogen polymer, only nitrile rubber (Example 8) or styrene-butadiene rubber and nitrile rubber were used, or EO-PO-AGE terpolymer and butadiene-butadiene rubber were used according to the ratio shown in Table 1. Nitrile rubber (Examples 6-7, Examples 9-10). The non-halogenated quaternary ammonium salt was mixed therein according to the proportion shown in Table 3, and the test piece was prepared from the conductive polymeric composition by the above method.

[0141] In addition, as the polyether polyol, the polyether polyol described in Table 5 having branches was used, and as the short-chain polyol, 1,4-butanediol was used. The above-mentioned non-halogenated quaternary ammonium salt was mixed according to the proportion shown in Table 5, and a test piece (Example 11) was prepared from the conductive polyurethane composition by the above method.

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Abstract

The invention provides a rubber product with a low volume intrinsic resistance value, a small compression permanent deformation, no toxic gas generated during product burn-off after use, and no adverse effects on the environment. The conductive rubber composition of the present invention comprises a copolymerization ratio of ethylene oxide / propylene oxide / allyl glycidyl ether of 50-95 mole % / 1-49 mole % / 1-10 mole %, number average molecular weight Ethylene oxide-propylene oxide-allyl glycidyl ether terpolymer (A) and nitrile rubber (B) with Mn above 10000, according to (A):(B)=70:30~5: The conductive polymer mixed in a weight ratio of 95 is mixed with 0.1 to 7.0 parts by weight of a non-halogenated quaternary ammonium salt corresponding to 100 parts by weight of the conductive polymer. Also provided is a non-halogen composition comprising a non-halogen polymer and a non-halogen quaternary ammonium salt of sulfonic acid or the like. The composition can be used to prepare rubber products such as conductive rubber rollers.

Description

technical field [0001] The present invention relates to a conductive rubber composition, a conductive polymer composition, a conductive vulcanized rubber, a conductive rubber roller and a conductive rubber belt. More specifically, it relates to the above-mentioned conductive rubber product that can be effectively used for charging rollers, developing rollers, ink supply rollers, copying rollers, copying belts, etc. of copiers and printers. Background technique [0002] Charging rollers, developing rollers, ink supply rollers, copying rollers, and copying belts used in copiers and printers, etc., must have appropriate and stable resistance values. [0003] In the past, methods for imparting conductivity to the above-mentioned rollers and rubber belts include the use of electronically conductive rubber mixed with conductive fillers such as metal oxide powder and carbon black in the rubber; polyurethane rubber, nitrile rubber (NBR ), epichlorohydrin rubber and other ion-conduc...

Claims

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Application Information

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IPC IPC(8): C08L63/00H01B1/00
Inventor 服部高幸沟口哲郎
Owner SUMITOMO RUBBER IND LTD
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