Conductive tape and electrophotographic device
An electrophotography and conductivity technology, which is applied to the equipment of the electric recording process using the charge pattern, the electric recording process using the charge pattern, and the electric recording technique, etc., to achieve the effect of suppressing the increase of the resistance value
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Embodiment 1
[0105] A twin-screw extruder (trade name: TEX30a; manufactured by The Japan Steel Works, LTD.) was used, and hot-melt kneading was performed in the blending shown in Table 5 to prepare a resin composition. The hot-melt kneading temperature was adjusted so as to fall within the range of 260° C. or higher and 280° C. or lower, and the hot-melt kneading time was set at about 3 to 5 minutes. The resulting resin composition was pelletized, and the pellets were dried at a temperature of 140° C. for 6 hours.
[0106] Next, a preform was prepared using an injection molding apparatus (trade name: SE180D; manufactured by Sumitomo Heavy Industries, Ltd.) set to a barrel preset temperature of 295°C. The injection molding mold temperature in this case was set at 30 °C. Put the preform into a heating device at a temperature of 500° C. to be softened, and then heat the preform at 500° C.
[0107] Afterwards, the preform is loaded into a primary blow molding machine. Then, in a blowdie mai...
Embodiment 2 to 5
[0109] A seamless belt for electrophotography was obtained in the same manner as in Example 1 except that the blending of the resin composition was changed as shown in Table 5.
[0110] It should be noted that, as the particles 2 used in Example 4, particles obtained by refining only the particles 2 to an average particle diameter of 10 μm using a pestle and a mortar were used.
[0111] Table 6 shows the evaluation results of the conductive tapes.
Embodiment 6
[0113] Pellets were produced in the same manner as in Example 1 except that the blending of the resin composition was changed as shown in Table 5. The pellets were loaded into an extruder, introduced into an annular die, melt extruded into a tube, and cut to provide a conductive tape. Table 6 shows the evaluation results of the conductive tapes.
[0114] [table 5]
[0115] table 5
[0116] Example
1
2
3
4
5
6
Base resin 1
81
-
81
81
81
65
Base resin 2
-
81
-
-
-
-
Area Resin 1
15
15
15
15
15
30
3
2
-
2
-
3
-
-
2
-
-
-
-
-
-
-
2
-
particle 1
1
2
2
-
2
2
particle 2
-
-
-
2
-
-
[0117] Unit: parts by mass
[0118] [Table 6]
[0119] Table 6
[0120] Surface Intrinsic Resistivity (ρs)
[0121]
PUM
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