Semi-conductive rubber roller and preparation method thereof

A rubber roller and semi-conductive technology, applied in the field of rubber rollers, can solve the problems of small molecule vulcanization aid precipitation pollution, poor imaging of printed products, environmental pollution, etc., to achieve poor imaging of printed products, less environmental pollution, and high product purity Effect

Active Publication Date: 2021-11-02
中广核高新核材科技(苏州)有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the above problems, and provides a semi-conductive rubber roller and its preparation method, which can completely solve the problems of serious environmental pollution and poor imaging of printed products caused by the precipitation and pollution of small molecule vulcanization aids

Method used

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  • Semi-conductive rubber roller and preparation method thereof
  • Semi-conductive rubber roller and preparation method thereof
  • Semi-conductive rubber roller and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Raw materials were prepared according to the components of Example 1 shown in Table 1. Put the three rubber components A, B, and C in an internal mixer at 80°C, knead for 1 min, add carbon black N220, N550, and add nano-kaolin, magnesium oxide, colloidal graphite, and polyester in sequence after kneading for 3 min. , TAIC and other components, knead for 5 minutes to make it evenly mixed with the rubber compound, and the debinding temperature is 135°C. Add the mixed rubber after internal mixing to the rubber milling equipment, and pass through it three times to obtain a continuous rubber sheet with a thickness of 5 mm, and cool it to room temperature for 2 hours.

[0036] Put the cold rubber sheet into the rubber extruder and extrude it continuously into a hollow rubber tube (outer diameter 15mm, inner diameter 6mm), and set the temperature of each section of the screw to 50°C. The rubber hose is air-cooled, pulled by a tractor, and enters the beam of the electron accel...

Embodiment 2

[0039]Raw materials were prepared according to the composition of Example 2 shown in Table 1. Put the three rubber components A, B, and C in an internal mixer at 70°C, knead for 2 minutes, add carbon black N220 and N774, and add calcium carbonate, calcium oxide, colloidal graphite, and liquid butyl in sequence after kneading for 4 minutes. Nitrile, TMPTMA and other components were mixed for 5 minutes to make them evenly mixed with the rubber compound, and the debinding temperature was 138°C. Add the mixed rubber after internal mixing to the rubber milling equipment, and pass through it three times to obtain a continuous rubber sheet with a thickness of 5 mm, and cool it to room temperature for 2 hours.

[0040] Put the cold rubber sheet into the rubber extruder and extrude it continuously into a hollow rubber tube (outer diameter 15mm, inner diameter 6mm), and set the temperature of each section of the screw to 45°C. The rubber hose is air-cooled, pulled by a tractor, and ent...

Embodiment 3

[0043] Raw materials were prepared according to the composition of Example 3 shown in Table 1. Put the three rubber components A, B, and C in an internal mixer at 60°C, knead for 1 min, add carbon black N220, N774, N990, and add calcium carbonate, magnesium oxide, colloidal graphite, and Polyester, liquid nitrile, TMPTMA and other components were kneaded for 5 minutes to make them evenly mixed with the rubber material, and the debinding temperature was 135°C. Add the mixed rubber after banbury mixing to the rubber milling equipment, and pass through it three times to obtain a continuous rubber sheet with a thickness of 8 mm, and cool it down to room temperature for 3 hours.

[0044] Put the cold rubber sheet into the rubber extruder and extrude it continuously into a hollow rubber tube (outer diameter 15mm, inner diameter 6mm), and set the temperature of each section of the screw to 40°C. The rubber hose is air-cooled, pulled by a tractor, and enters the beam of the electron ...

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Abstract

The invention relates to a rubber roller, in particular to a semi-conductive rubber roller and a preparation method thereof. The semi-conductive rubber roller comprises a metal core and a hollow rubber tube, and the hollow rubber tube is prepared from, by weight, 100 parts of rubber, 40-60 parts of carbon black, 0.5-6 parts of crosslinking sensitizer, 20-50 parts of softening oil, 5-10 parts of lubricant, 1-5 parts of acid acceptor and 15-30 parts of filler; the rubber is formed by mixing epichlorohydrin rubber, nitrile rubber and diene rubber, and the diene rubber is butadiene rubber and/or butadiene styrene rubber. The components do not contain micromolecular vulcanizing active agents, auxiliaries, plasticizers and the like; meanwhile, the rubber roller is prepared in an electron beam irradiation crosslinking mode, the problem of poor imaging of a printed product caused by precipitation pollution of a micromolecular vulcanizing aid and the like is thoroughly solved, the thermal stability of the material is improved, no thermal decomposition product is generated in the irradiation crosslinking process, and the environmental pollution is small.

Description

technical field [0001] The invention relates to a rubber roller, in particular to a semi-conductive rubber roller and a preparation method thereof, and is a charging roller and a developing roller used in laser printers. Background technique [0002] The miniaturization, networking, high-speed, high-quality image, and image colorization of laser printers are the main development trends. Advances in these technologies rely on the optimization of the properties of various types of conductive rubber rollers used in the electro-imaging process. The conductive rubber roller in a laser printer mainly includes a charging roller and a developing roller. Charging rollers and developing rollers are generally composed of a metal core and a semi-conductive rubber layer with low hardness. In order to achieve good and stable printing quality, the basic technical requirements of semiconductive rubber materials include uniform and stable electrical conductivity, excellent environmental st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/02C08L71/03C08L9/00C08L67/00C08J7/12
CPCC08L9/02C08L71/03C08J7/123C08L2203/18C08J2309/02C08J2471/03C08J2409/00C08J2371/03C08L9/00C08L67/00
Inventor 姜朋飞徐红岩温得浩成鹏袁亿文
Owner 中广核高新核材科技(苏州)有限公司
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