Conductive roller linked rubber composition, conductive roller rubber crosslinking, and conductive roller
The technology of a rubber composition and a conductive roller is applied in the directions of corona discharge device, electric recording technology using charge pattern, equipment for electric recording process using charge pattern, etc., which can solve the problem of low hardness, low resistance value, unsatisfactory and other problems, to achieve the effect of low hardness, low volume resistivity, and excellent resistance to compression set
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment
[0105] The following examples and comparative examples are given to further describe the present invention in detail, but the present invention is not limited to these examples. Hereinafter, unless otherwise specified, "parts" are based on weight. The test or evaluation methods of physical properties and characteristics are as follows.
[0106] [Mooney Viscosity]
[0107] Mooney viscosity (ML 1＋4 , 100°C) measured at 100°C in accordance with JIS K6300.
[0108] [hardness]
[0109] The cross-linkable rubber composition was molded and cross-linked by pressing at a temperature of 170°C for 20 minutes, and then secondary cross-linked at a temperature of 150°C for 4 hours to obtain a cylinder with a diameter of 29 mm and a height of 12.7 mm Cross-linked rubber. And, using the obtained cylindrical cross-linked rubber, the hardness was measured using a type A durometer according to JIS K6253.
[0110] [Volume resistivity value (23°C, 50%RH)]
[0111] The cross-linkable rubber ...
manufacture example 1
[0114] [Manufacturing Example 1, Preparation of Catalyst Solution]
[0115] The airtight pressure-resistant glass bottle was replaced with nitrogen, 184.8 parts of toluene and 55.2 parts of triisobutylaluminum were charged, the glass bottle was immersed in ice water and cooled, and 103.1 parts of diethyl ether was added to the glass bottle and stirred. Next, while cooling was continued with ice water, 8.18 parts of phosphoric acid was added to the glass bottle, and further stirred. At this time, since the internal pressure of the glass bottle was increased by the reaction of triisobutylaluminum and phosphoric acid, depressurization was performed appropriately. Next, 8.27 parts of formate salt of 1,8-diazabicyclo(5,4,0)undecene-7 was added to the glass bottle, and finally an aging reaction occurred in a warm water bath at 60°C for 1 hour, thereby A catalyst solution was obtained.
manufacture example 2
[0116] [Production example 2, production of polyether rubber]
[0117] 212.4 parts of epichlorohydrin, 26.2 parts of allyl glycidyl ether, 18.4 parts of ethylene oxide, and 2053.8 parts of toluene were added to the autoclave, and while stirring under a nitrogen atmosphere, the temperature of the internal solution was raised to 70°C, and 10 parts of From the catalyst solution prepared above, the reaction was started. Next, a solution obtained by dissolving 123.0 parts of ethylene oxide in 287.0 parts of toluene was continuously added at a constant rate over 5 hours from the start of the reaction. Meanwhile, the catalyst solution prepared above was added every 7 parts every 30 minutes over 5 hours. Thereafter, 15 parts of water was added to the reaction system and stirred to complete the reaction, and 4,4'-thiobis(6-tert-butyl-3-methylphenol) 5% by weight of toluene was added as an anti-aging agent 38 parts of the solution and stirred. Next, stripping was performed to remove ...
PUM
| Property | Measurement | Unit |
|---|---|---|
| particle size | aaaaa | aaaaa |
| voidage | aaaaa | aaaaa |
| specific surface area | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More