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High-wear-resistance charge roller and processing technique thereof

A charging roller and high wear resistance technology, applied in the field of charging rollers, can solve the problems of poor wear resistance and short service life, and achieve the effects of good wear resistance, improved heat resistance, and improved surface gloss and surface smoothness.

Active Publication Date: 2016-09-21
DONGGUAN WALTON RUBBER & PLASTIC NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing charging roller has poor wear resistance and short service life

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] A high wear-resistant charging roller, comprising a roller shaft, a foamed conductive sponge layer sleeved on the outside of the roller shaft, and a conductive nylon sleeve sleeved on the outside of the foamed conductive sponge layer; the conductive nylon sleeve consists of the following weight Servings are made with:

[0046] PA12 resin 80 parts

[0047] Filler 25 parts

[0048] Polyethylene 10 parts

[0049] Wear-resistant modifier 6 parts

[0050] Toughener 4 parts

[0051] 2 parts of coupling agent

[0052] Lubricant 1 part

[0053] 1 part flame retardant

[0054] Conductive agent 1 part.

[0055] The filler is nano-calcium carbonate with a particle size of 1 nm and treated with a silane coupling agent.

[0056] Described polyethylene is that melt index is 0.4g / 10min, and density is 0.915g / cm 3 metallocene polyethylene.

[0057] The wear-resistant modifier is a mixture of styrene-butadiene rubber and natural rubber in a weight ratio of 1.5:1.

[0058] The...

Embodiment 2

[0071] The difference between this embodiment and the above-mentioned embodiment 1 is that the conductive nylon sleeve is made of the following raw materials in parts by weight:

[0072] PA12 resin 90 parts

[0073] Filling agent 30 parts

[0074] Polyethylene 12 parts

[0075] Wear-resistant modifier 7 parts

[0076] Toughener 5 parts

[0077] 3 parts of coupling agent

[0078] Lubricant 2 parts

[0079] Flame retardant 1.5 parts

[0080] Conductive agent 1.2 parts.

[0081] The filler is nano-calcium carbonate with a particle size of 3nm and treated with a silane coupling agent.

[0082] The polyethylene has a melt index of 0.5g / 10min and a density of 0.918g / cm 3 metallocene polyethylene.

[0083] The wear-resistant modifier is a mixture of styrene-butadiene rubber and natural rubber in a weight ratio of 1.8:1.

[0084] The toughening agent is composed of methyl methacrylate-butadiene-styrene copolymer, methyl methacrylate-butadiene-styrene copolymer and hydrogenat...

Embodiment 3

[0090] The difference between this embodiment and the above-mentioned embodiment 1 is that the conductive nylon sleeve is made of the following raw materials in parts by weight:

[0091] PA12 resin 100 parts

[0092] Filler 35 parts

[0093] Polyethylene 15 parts

[0094] Wear-resistant modifier 8 parts

[0095] Toughener 6 parts

[0096] 4 parts of coupling agent

[0097] Lubricant 3 parts

[0098] Flame retardant 2 parts

[0099] Conductive agent 1 part.

[0100] The filler is nano-calcium carbonate with a particle size of 5 nm and treated with a silane coupling agent.

[0101] The polyethylene has a melt index of 0.6g / 10min and a density of 0.920g / cm 3 metallocene polyethylene.

[0102] The wear-resistant modifier is a mixture of styrene-butadiene rubber and natural rubber in a weight ratio of 2:1.

[0103] The toughening agent is composed of methyl methacrylate-butadiene-styrene copolymer, methyl methacrylate-butadiene-styrene copolymer and hydrogenated styrene-b...

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Abstract

The invention relates to the technical field of charge rollers, in particular to a high-wear-resistance charge roller and a processing technique thereof. The high-wear-resistance charge roller comprises a roller shaft, a foam conductive sponge layer sleeving the roller shaft, and a conductive nylon sleeve that sleeves the foam conductive sponge layer; the conductive nylon sleeve is made from the following materials according to parts by weight: 80-120 parts of PA12 resin, 25-45 parts of a filler, 10-20 parts of polyethylene, 6-10 parts of a wear-resistant modifier, 4-8 parts of a flexibilizer, 2-6 parts of a coupling agent, 1-5 parts of a lubricating agent, 1-3 parts of a flame retardant, and 1-2 parts of a conductive agent. The charge roller of the invention has the advantages that the charge roller is imparted good wear resistance, bright appearance and high quality by using the conductive nylon sleeve; the charge roller is high in stability and pollution resistance; the charge roller with high breakthrough resistance supports various drum cores in market. The charge roller of the invention is good in wear resistance and long in service life.

Description

technical field [0001] The invention relates to the technical field of charging rollers, in particular to a high wear-resistant charging roller and its processing technology. Background technique [0002] The charging roller used on the printing equipment is responsible for contacting and rotating the photosensitive drum, so that the photosensitive drum is evenly charged, and the electrostatic latent image after exposure is generated. The existing charging roller has poor wear resistance and short service life. Contents of the invention [0003] In order to overcome the shortcomings and deficiencies in the prior art, the purpose of the present invention is to provide a high wear-resistant charging roller, which has good wear resistance and long service life. [0004] Another object of the present invention is to provide a processing technology of a high wear-resistant charging roller, which has simple steps, convenient operation and control, stable quality, high productio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/02C08L23/06C08L9/06C08L7/00C08K13/06C08K9/06C08K3/26C08K3/38C08K3/22C08K3/04C08K7/24
CPCC08K2201/001C08K2201/011C08L77/02C08L2203/18C08L2205/035C08L23/06C08L9/06C08L7/00C08K13/06C08K9/06C08K2003/265C08K2003/387C08K3/2279C08K3/04C08K7/24
Inventor 黄本林
Owner DONGGUAN WALTON RUBBER & PLASTIC NEW MATERIAL CO LTD
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