Recyclable conductive roller

Abstract

The invention discloses a recyclable conductive roller which is characterized by comprising the following steps: S1, putting 35-60 parts by weight of silica gel and 1.5-10 parts by weight of a conductive agent into a kneading machine, then heating to 160-200 DEG C, vacuumizing, and carrying out primary mixing to obtain a base material; s2, the cooled base material is put into a three-roller grinding machine to be subjected to thin-passing treatment; s3, after the thin-passing treatment, placing the base material in an open mill, adding 0.01-0.1 part by weight of nano-zinc oxide and 0.5-2.5 parts by weight of a vulcanizing agent, and carrying out secondary mixing to obtain a rubber material; s4, the rubber material is put into an extruder, a rubber pipe is obtained after the rubber material is extruded in the extruder, and a roller core penetrates through the rubber pipe through a pipe penetrating machine; s5, putting the rubber tube penetrating through the core thickness in the step S4 into an oven for baking; and S6, the outer surface of the rubber pipe is ground through a grinding machine. The method is simple in process and good in resistance stability.

Description

Technical Field

[0001] The invention relates to the technical field of anaerobic digestion treatment process, and in particular to a recyclable conductive roller. Background Art

[0002] Currently, most of the developing rollers on the market are rubber developing rollers. However, the developing rollers made of rubber have the problem of poor resistance stability, which affects the promotion of rubber developing rollers.

[0003] In addition, in the existing preparation process of rubber conductive rollers, generally the roller core is covered with rubber before vulcanization, and the cost of this preparation process is relatively high. Summary of the invention

[0004] The present invention aims to solve the above technical problems and proposes a recyclable conductive roller with simple process and good resistance stability.

[0005] To achieve the above object, the present invention adopts the following technical solution: a recyclable conductive roller, characterized in that it includes the following steps: S1, putting 35-60 parts by weight of silica gel and 1.5-10 parts by weight of a conductive agent into a kneader, then heating to 160° C. to 200° C., evacuating, and kneading for the first time to obtain a substrate; S2, the cooled substrate is placed in a three-roll mill for thin pass processing; S3, after the thin pass treatment, placing the substrate in an open mill, adding 0.01-0.1 parts by weight of nano zinc oxide and 0.5-2.5 parts by weight of a vulcanizing agent to perform a second mixing to obtain a rubber compound; S4, putting the rubber material into an extruder, obtaining a rubber hose after the rubber material is extruded by the extruder, and passing a roller core through the rubber hose using a tube threading machine; S5, putting the rubber hose with thick core in step S4 into an oven for baking; S6. Use a grinder to grind the outer surface of the hose.

[0006] As another improvement of the recyclable conductive roller of the present invention, the conductive agent consists of 1-8 parts by weight of carbon nanotubes and 0.5-2 parts by weight of graphene.

[0007] As another improvement of the recyclable conductive roller of the present invention, the vulcanizing agent is diisopropyl disulfide.

[0008] As another improvement of the recyclable conductive roller of the present invention, the step S5 is baking at 160-200° C. for 0.8-1.5 hours.

[0009] As another improvement of the recyclable conductive roller of the present invention, 0.01-0.05 parts by weight of dimer silane catalyst is added during the vulcanization process in step S3.

[0010] As another improvement of the recyclable conductive roller of the present invention, in step S2, the substrate is thin-passed 1 to 3 times at a temperature of 25 to 30°C.

[0011] As another improvement of the recyclable conductive roller of the present invention, the rotation speed of the extruder is 20 to 80 revolutions per minute, and the drying tunnel speed is 10 to 30 meters per minute.

[0012] Beneficial effects of the present invention: The resistance stability of the developing roller prepared by the present invention through reasonable ratio and preparation process is good. In the present invention, nano zinc oxide is added to silica gel, which can serve as an electron transfer bridge of the conductive filler, improve the resistance volatility of silica gel under high voltage, so that the resistance of the developing roller changes less with the voltage, and the resistance stability is better.

[0013] After long-term use, the conductive roller of the present invention can conveniently remove the silicone rubber hose from the roller core, thereby facilitating recycling and reuse. DETAILED DESCRIPTION

[0014] Embodiment 1: A recyclable conductive roller comprises the following steps: S1, 35 parts by weight of silica gel, 1 part by weight of carbon nanotubes, and 0.5 parts by weight of graphene are put into a kneader, and then heated to 160° C., evacuated, and kneaded for the first time to obtain a substrate; S2. The cooled substrate is placed in a three-roll mill and thinned once at 25°C; S3, after the thin pass treatment, placing the substrate in an open mill, adding 0.01 parts by weight of nano zinc oxide and 0.5 parts by weight of diisopropyl disulfide, and performing a second mixing to obtain a rubber compound; S4, putting the rubber material into an extruder, obtaining a rubber hose after the rubber material is extruded by the extruder, and passing a roller core through the rubber hose using a tube threading machine; the rotation speed of the extruder is 20 to 80 rpm, and the drying tunnel speed is 10 to 30 m / min.

[0015] S5, putting the rubber hose with thick core in step S4 into an oven and baking it at 160° C. for 0.8 hours; S6. Use a grinder to grind the outer surface of the hose.

[0016] Embodiment 2: A recyclable conductive roller comprises the following steps: S1, 60 parts by weight of silica gel, 8 parts by weight of carbon nanotubes, and 2 parts by weight of graphene are put into a kneader, and then heated to 200° C., evacuated, and kneaded for the first time to obtain a substrate; S2. The cooled substrate is placed in a three-roll mill and thinned three times at 30°C; S3, after the thin pass treatment, the substrate is placed in an open mill, 0.1 parts by weight of nano zinc oxide and 2.5 parts by weight of diisopropyl disulfide are added, 0.01 parts by weight of dimer silane catalyst is added during the vulcanization process, and a second mixing is performed to obtain a rubber compound; S4, putting the rubber material into an extruder, obtaining a rubber hose after the rubber material is extruded by the extruder, and passing a roller core through the rubber hose using a tube threading machine; the rotation speed of the extruder is 20 to 80 rpm, and the drying tunnel speed is 10 to 30 m / min.

[0017] S5, putting the rubber hose with thick core in step S4 into an oven and baking it at 200°C for 1.5 hours; S6. Use a grinder to grind the outer surface of the hose.

[0018] Embodiment 3: A recyclable conductive roller comprises the following steps: S1, 50 parts by weight of silica gel, 3 parts by weight of carbon nanotubes, and 1 part by weight of graphene are put into a kneader, and then heated to 180° C., evacuated, and kneaded for the first time to obtain a substrate; S2. The cooled substrate is placed in a three-roll mill and thinned twice at 28°C; S3, after the thin pass treatment, the substrate is placed in an open mill, 0.03 parts by weight of nano zinc oxide and 1.5 parts by weight of diisopropyl disulfide are added, 0.02 parts by weight of dimer silane catalyst is added during the vulcanization process, and a second mixing is performed to obtain a rubber compound; S4, putting the rubber material into an extruder, obtaining a rubber hose after the rubber material is extruded by the extruder, and passing a roller core through the rubber hose using a tube threading machine; the rotation speed of the extruder is 20 to 80 rpm, and the drying tunnel speed is 10 to 30 m / min.

[0019] S5, putting the rubber hose with thick core in step S4 into an oven and baking it at 180° C. for 1.0 hour; S6. Use a grinder to grind the outer surface of the hose.

[0020] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A recyclable conductive roller, characterized in that: The following steps are involved: S1, putting 35-60 parts by weight of silica gel and 1.5-10 parts by weight of a conductive agent into a kneader, then heating to 160° C. to 200° C., evacuating, and kneading for the first time to obtain a substrate; S2, the cooled substrate is placed in a three-roll mill for thin pass processing; S3, after the thin pass treatment, placing the substrate in an open mill, adding 0.01-0.1 parts by weight of nano zinc oxide and 0.5-2.5 parts by weight of a vulcanizing agent to perform a second mixing to obtain a rubber compound; S4, putting the rubber material into an extruder, obtaining a rubber hose after the rubber material is extruded by the extruder, and passing a roller core through the rubber hose using a tube threading machine; S5, putting the rubber hose with thick core in step S4 into an oven for baking; S6. Use a grinder to grind the outer surface of the hose.

2. The recyclable conductive roller according to claim 1, characterized in that: The conductive agent consists of 1-8 parts by weight of carbon nanotubes and 0.5-2 parts by weight of graphene.

3. The recyclable conductive roller according to claim 1, characterized in that: The vulcanizing agent is diisopropyl disulfide.

4. The recyclable conductive roller according to claim 1, characterized in that: In step S5, the mixture is baked at 160-200° C. for 0.8-1.5 hours.

5. The recyclable conductive roller according to claim 1, characterized in that In step S3, 0.01-0.05 parts by weight of dimer silane catalyst is added during the vulcanization process.

6. The recyclable conductive roller according to claim 1, characterized in that: In step S2, the substrate is thin-passed at a temperature of 25-30° C. for 1-3 times.

7. The recyclable conductive roller according to claim 1, characterized in that: The rotation speed of the extruder is 20 to 80 rpm, and the drying tunnel speed is 10 to 30 m / min.