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Non-halogen conductive roll

A conductive roller, non-halogen technology, applied in the direction of circuits, electrical components, electrography, etc., can solve the problems of difficult control of resistance value, inconsistency in the circumferential direction or width direction, etc.

Active Publication Date: 2011-08-03
SUMITOMO RUBBER IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] *There is a region where the resistance value fluctuates sharply with a small change in the amount of the above-mentioned filler, and it is difficult to control the resistance value,
[0018] * It is difficult to disperse the filler uniformly in the rubber composition, so that the resistance value tends to be inconsistent in the circumferential direction or width direction of the conductive roller,

Method used

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  • Non-halogen conductive roll
  • Non-halogen conductive roll
  • Non-halogen conductive roll

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0117] 50 parts by mass of EO-PO-AGE copolymer rubber [ZEOSPAN (registered trademark) 8030 manufactured by Japan Zeon Co., Ltd.] and 50 parts by mass of NBR [NIPOL (registered trademark) DN401LL manufactured by Japan Zeon Co., Ltd.] parts (mass ratio W E / W N =50 / 50), and relative to 100 parts by mass of the above-mentioned rubber components, 0.75 parts by mass of sulfur, 1.50 parts by mass of peroxide-based vulcanizing agents [di-α-cumyl peroxide, NOF ( Co., Ltd. PERCUMYL (registered trademark) D], 0.75 parts by mass of thiazole-based vulcanization accelerator [di-2-benzothiazole disulfide, Nocceler (registered trademark) DM manufactured by Ouchi Shinko Chemical Industry Co., Ltd.], and 0.25 parts by mass of a thiuram-based vulcanization accelerator [tetramethylthiuram monosulfide, Nocceler TS manufactured by Ouchi Shinshin Chemical Co., Ltd.], and kneaded with a Banbury mixer to prepare a rubber composition.

[0118]The above-mentioned rubber composition was supplied to an...

Embodiment 2

[0120] A rubber composition was prepared in the same manner as in Example 1 except that the amount of the peroxide-based vulcanizing agent was changed to 2.50 parts by mass relative to 100 parts by mass of the total amount of rubber components, and a conductive roller was produced.

Embodiment 3

[0122] With respect to 100 parts by mass of the total amount of rubber components, the amount of sulfur was changed to 0.50 parts by mass, the amount of peroxide-based vulcanization agent was changed to 2.00 parts by mass, and the amount of thiazole-based vulcanization accelerator was changed to 0.50 parts by mass, and the amount of autumn Except that the amount of the Lamb-based vulcanization accelerator was changed to 0.17 parts by mass, a rubber composition was prepared in the same manner as in Example 1, and a conductive roller was produced.

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Abstract

The invention relates to a non-halogen conductive roll. The invention provides a novel non-halogen conductive roll whose forming materials do not contain halogens such as chlorine and the like; and when processed to be with a small diameter, the conductive roll is processed to have low hardness for maintaining a specified clamping thickness, so the conductive roll is provided with a small permanent compression deformation under a flexible state and thus an excellent low residual deformation. The main roll body (2) of the non-halogen conductive roll (1) is formed by the following rubber composition which comprises a rubber component, a sulfur-based vulcanizing agent with a part by mass of 0.5-1.0 relative to 100 parts by mass of the rubber component, and a peroxide-based vulcanizing agent with a part by mass of 1.5-2.5, wherein the rubber component comprises EO-PO-AGE copolymer rubber and nitrile rubber with a mass ratio of WE / WN meeting the range of 30 / 70-70 / 30.

Description

technical field [0001] The present invention relates to a non-halogen conductive roller that can be used as a developing roller or the like in an image forming apparatus such as a laser printer. Background technique [0002] Image forming devices using electrophotography, such as laser printers, electrostatic copiers, plain paper facsimile devices, or their multifunction machines, have been widely popularized through improvements such as high speed, high image quality, colorization, and miniaturization. . In addition, these improvements are currently continuing without interruption. [0003] For example, laser printers are continuously being researched and developed for further miniaturization and maintenance-free maintenance based on improved durability of each part with the aim of further popularization in the future. Accordingly, in accordance with such trends, further reduction in diameter and high durability are required for conductive rollers incorporated in image fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L71/02C08L9/02C08K13/02C08K3/06C08K5/14G03G15/08G03G15/02G03G15/16G03G21/00F16C13/00
Inventor 丸井隆司田岛启山本正文水本善久
Owner SUMITOMO RUBBER IND LTD