Rubber/acetylene black conductive material as well as preparation method and application thereof

A technology of acetylene carbon black and conductive materials, which is applied in conductive materials dispersed in non-conductive inorganic materials, electrical recording technology applying charge patterns, equipment for electrical recording technology applying charge patterns, etc. Technology and production capacity, high price of chloroether rubber, and high processing temperature, to achieve the effect of good mechanical properties, stable electrical conductivity, and excellent aging resistance

Active Publication Date: 2014-01-29
苏州瑞力博新材科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the rubber material used for rubber rollers is mainly chloroether rubber, which has the disadvantages of high price, high processing temperature, and difficult processing, and is mainly controlled by Japan. There is no independent knowledge of rubber charging rollers and developing rollers in China. Property rights technology and production capacity

Method used

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  • Rubber/acetylene black conductive material as well as preparation method and application thereof
  • Rubber/acetylene black conductive material as well as preparation method and application thereof
  • Rubber/acetylene black conductive material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053]Natural rubber (NR) is selected, and the formula (mass ratio, the same below) is as follows: NR 100, acetylene carbon black (ACET) and resorcinol and hexamethylenetetramine complex (RH) values ​​are shown in Table 1 , is a variable; stearic acid 2, ZnO 4, accelerator TMTM 1.5, accelerator DM 0.5, antioxidant 4010NA 1, sulfur 1.5. It is mixed at room temperature on a Φ160 open mill, and then vulcanized on a 25-ton flat vulcanizer at a vulcanization temperature of 143°C. Table 1 lists the electrical conductivity and mechanical properties of NR / ACET / RH conductive composite vulcanizates. It can be seen from the table that with the increase of the amount of ACET in the NR / ACET / RH system, the electrical conductivity and tensile strength of the vulcanized rubber increased to a certain extent, and the hardness showed an upward trend. After adding RH, the electrical conductivity of the material decreased to a certain extent, but the spray The frost phenomenon is effectively solv...

Embodiment 2

[0057] The rubber is nitrile rubber (NBR), and the formula is as follows: NBR 100, resorcinol and hexamethylenetetramine complex (RH), acetylene carbon black (ACET) as variables, stearic acid 2, ZnO 5, Accelerator CZ 1.5, accelerator DM 0.5, antioxidant 4010NA 1, sulfur 2. It is mixed at room temperature on a Φ160 open mill, and then vulcanized on a 25-ton flat vulcanizer at a vulcanization temperature of 170°C.

[0058] Table 2: Electrical conductivity and mechanical properties of NBR / ACET / RH vulcanizate

[0059]

[0060] It can be seen from Table 2 that with the increase of the amount of ACET, the conductivity and tensile strength of the conductive composite material have been improved, but compared with Table 1, in the case of a small filling amount, it can be seen that NBR / ACET / RH The conductivity and mechanical properties of the system are not as good as those of NR / ACET / RH system.

Embodiment 3

[0062] The rubber is natural rubber, and the formula is as follows: NR 100, ACET20, resorcinol and hexamethylenetetramine complex (RH) 5, insoluble S variable, ZnO 5, stearic acid 2, accelerator (TMTM) 1 , Antiaging agent (4010NA) 1. The flakes were kneaded at room temperature in an open mill, and then vulcanized on a flat vulcanizer. The vulcanization condition was 143°C x normal vulcanization time (min). Table 3 shows the electrical conductivity and mechanical properties of the natural rubber / acetylene carbon black conductive composite material system with different vulcanizing agent additions. It can be seen that the increase in the amount of insoluble S can improve the electrical conductivity and mechanical properties of the composite material to a certain extent, but when the amount is too large, excessive cross-linking will destroy the conductive network structure, aging (70 。 C, 72h), the material can maintain good electrical conductivity and mechanical properties.

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Abstract

The invention discloses a rubber / acetylene black conductive material as well as a preparation method and application thereof. The rubber / acetylene black conductive material consists of the following materials in parts by weight: 100 parts of rubber, 2-20 parts of acetylene black, 0-10 parts of a modifier and 0.5-5 parts of a vulcanizing agent. The preparation method of the composite material disclosed by the invention is simple and is easy to operate and control, and an existing rubber processing method and device can be adopted; the conductive performance of the conductive composite material is stable, and blooming can be effectively avoided; the conductive composite material has good mechanical property and excellent aging resistance on the premise of keeping the conductive performance.

Description

technical field [0001] The invention relates to the technical field of conductive composite materials, in particular to a preparation method and properties of a rubber / acetylene carbon black conductive material based on a laser printer charging roller / developing roller. Background technique [0002] Generally, rubber is essentially an insulator, and its volume resistance is greater than 10. 14 Ω or so, but rubber is prone to static electricity during mastication, calendering or gluing. The static electricity generated may affect the use of the entire instrument, and even some rubber products may cause fire or explosion due to frictional electrification during use. Therefore, the use of conductive rubber products that can impart conductivity can solve the effect of static electricity on rubber belts. Conductive rubber is a large category of filled conductive polymer materials. It is mainly to mix conductive materials with rubber to give the rubber a certain degree of cond...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L7/00C08L9/02C08L9/06C08K13/06C08K9/06C08K9/04C08K3/04C08K5/09C08K3/22H01B1/24G03G15/02G03G15/08
Inventor 古菊黄凯波贾德民
Owner 苏州瑞力博新材科技有限公司
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