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Elastomer roller, manufacturing method thereof, developing box and image forming device

A body roller and elastic technology, applied in the field of image formation, can solve the problems of inconvenient feeding, poor mixing compatibility, reduced processing efficiency, etc., and achieve the effects of not easy to change or be destroyed, good chain flexibility, and improved production efficiency.

Active Publication Date: 2014-11-05
NINESTAR CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the process of blending liquid rubber with solid rubber composition, there are problems of inconvenient feeding and poor compatibility with rubber composition. It takes a long time to achieve the purpose of uniform mixing, which greatly reduces the processing time. efficiency

Method used

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  • Elastomer roller, manufacturing method thereof, developing box and image forming device
  • Elastomer roller, manufacturing method thereof, developing box and image forming device
  • Elastomer roller, manufacturing method thereof, developing box and image forming device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0076] Pretreatment of shaft core:

[0077] The outer surface of a metal mandrel (SUM22) with an outer diameter of 8 mm was degreased with dehydrated ethyl acetate.

[0078] Formation of the elastic layer:

[0079] The basic materials used in the rubber composition are epichlorohydrin rubber and star-shaped comb-shaped butadiene-isoprene-styrene copolymer: (A f )n-C a (Provided by Dalian University of Technology or prepared with reference to the method in CN101157743B). In the formation of copolymers (A f )n-C a Among the monomers, the mass ratio of butadiene, isoprene and styrene is 40:40:20. Gel Permeation chromatography (Gel Permeation chromatography, GPC) analysis number average molecular weight Mn is 48500, weight average molecular weight Mw is 108200, molecular weight distribution index HI is 2.23, C a Residues for epoxidized liquid star polybutadiene seed trees.

[0080] 92 parts by mass of epichlorohydrin rubber (trade name: Hydrin T3106; produced by Zeon Co...

Embodiment 2

[0085] Formation of the adhesive layer:

[0086] Adhesives (trade names: Chemlok205 and Chemlok233; produced by Shanghai Lord Chemical Co., Ltd.) were used to arrange the outer layer of the shaft core in Example 1 according to the process recommended by the adhesive product to obtain a shaft core with an adhesive layer.

[0087] Formation of the elastic layer:

[0088] The basic materials used in the rubber composition are epichlorohydrin rubber and star-shaped comb polybutadiene: (A a )n-C a (Provided by Dalian University of Technology or prepared with reference to the method in CN101157743B). The number average molecular weight Mn analyzed by GPC is 35400, the weight average molecular weight Mw is 95900, and the molecular weight distribution index HI is 2.71, C a Residues for epoxidized liquid star polybutadiene seed trees.

[0089] 95 parts by mass of epichlorohydrin rubber and 5 parts by mass of star-shaped comb-shaped polybutadiene were mixed to form a base materi...

Embodiment 3

[0091] The basic material used in the rubber composition forming the elastic layer is epichlorohydrin rubber and star-shaped comb-shaped butadiene-styrene copolymer: (A d )n-C a (Dalian University of Technology provides or prepares with reference to the method in CN101157743B); Wherein, in forming copolymer (A d )n-C a Among the monomers, the mass ratio of butadiene and styrene is 75:25. The number average molecular weight Mn analyzed by GPC is 52100, the weight average molecular weight Mw is 113600, and the molecular weight distribution index HI is 2.18, C a Residues for epoxidized liquid star polybutadiene seed trees.

[0092] 92 parts by mass of epichlorohydrin rubber and 8 parts by mass of star-shaped comb-shaped butadiene-styrene are mixed to form the base material, and the rest are made into a developing roller according to the same raw materials and methods as in Example 1.

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Abstract

The invention provides an elastomer roller, a manufacturing method thereof, a developing box and an image forming device, wherein the elastomer roller is at least provided with a shaft core, an elastic layer and a surface layer. The elastic layer and the surface layer are successively arranged at a periphery of the shaft core. A base material for forming the elastic layer consists of rubber and a star-shaped comb-like hydrocarbon polymer containing double bonds, wherein the total mass of the star-shaped comb-like hydrocarbon polymer containing double bonds accounts for 1-40% of the total mass of the base material. The invention also provides the method for manufacturing the elastomer roller. The elastomer roller, as a developing roller a charging roller or a transferring roller, is applied in the image forming device, is small in permanent compression deformation, is free of a phenomenon that low-molecular substances bleed and other contacting parts are polluted.

Description

technical field [0001] The present invention relates to an elastic body roller, its manufacturing method, a developing cartridge and an image forming device, and more particularly to an elastic body roller with improved performance and a developing device using the elastic body roller, including a developing cartridge and an image forming device, wherein, The image forming device is a copier or a laser printer. It belongs to the technical field of image formation. Background technique [0002] The elastomer roller is one of the key components in the image forming device. At present, the basic material used to prepare the elastomer roller is rubber material, which can be: epichlorohydrin rubber, natural rubber, EPDM rubber, cis-butadiene Rubber, butyl rubber, styrene-butadiene rubber, nitrile rubber, neoprene, silicone rubber, fluororubber, acrylic rubber, polysulfide rubber and various rubber mixtures, etc. [0003] The manufacture of elastomeric rollers used in image form...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03G15/02G03G15/08G03G15/00
Inventor 林路杨正文潘悦
Owner NINESTAR CORP
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