1. The novel oil-resistant heat-insulating antistatic rubber roll material is characterized by comprising the following raw materials in parts by weight:

35-65 parts of nitrile rubber, 8-40 parts of chloroprene rubber, 15-40 parts of natural rubber, 2-6 parts of zinc oxide, 1-3.5 parts of stearic acid, 0.65-0.65 part of composite accelerator p-840.35, 0.8-3 parts of accelerator D, 1-3 parts of anti-aging agent RD, 1-5 parts of mica powder, 6-9 parts of barium sulfate, 1-4 parts of polyethylene glycol, 25-65 parts of white carbon black and 0.8-4.5 parts of sulfur.

2. The novel oil-resistant heat-insulating antistatic rubber roll material as claimed in claim 1, characterized in that 45-60 parts of nitrile rubber, 10-38 parts of chloroprene rubber, 20-35 parts of natural rubber, 3.2-6 parts of zinc oxide, 1-3 parts of stearic acid, p-840.4-0.6 part of composite accelerator, 1-2.3 parts of accelerator D, 1-2 parts of anti-aging agent RD, 1-4.5 parts of mica powder, 7-9 parts of barium sulfate, 1-4 parts of polyethylene glycol, 30-65 parts of white carbon black and 1-4 parts of sulfur.

3. The novel oil-resistant heat-insulating antistatic rubber roll material as claimed in claim 1, characterized in that 50-60 parts of nitrile rubber, 15-35 parts of chloroprene rubber, 25-35 parts of natural rubber, 4.2-6 parts of zinc oxide, 1.1-2.2 parts of stearic acid, 0.6-0.6 part of composite accelerator p-840.4, 1-2 parts of accelerator D, 1-1.8 parts of anti-aging agent RD, 2-3.5 parts of mica powder, 7.5-9 parts of barium sulfate, 2-4 parts of polyethylene glycol, 35-65 parts of white carbon black and 2-3.2 parts of sulfur.

4. The novel oil-resistant heat-insulating antistatic rubber roller material as claimed in claim 1, characterized in that the material comprises 50 parts of nitrile rubber, 20 parts of chloroprene rubber, 30 parts of natural rubber, 5.2 parts of zinc oxide, 1.3 parts of stearic acid, p-840.5 parts of composite accelerator, 1.5 parts of accelerator D, 1.5 parts of antioxidant RD, 3 parts of mica powder, 8 parts of barium sulfate, 3 parts of polyethylene glycol, 50 parts of white carbon black and 2.2 parts of sulfur.

5. A preparation process of a novel oil-resistant heat-insulating antistatic rubber roller material is characterized by comprising the following preparation steps:

step 1, putting plasticated natural rubber, nitrile rubber, chloroprene rubber, zinc oxide, stearic acid, a compounding accelerator p-84, an accelerator D, an anti-aging agent RD, barium sulfate, mica powder and polyethylene glycol into an internal mixer for mixing for 30-50 seconds;

2, adding 185C white carbon black into the mixture, continuously mixing for 2-6 minutes, cleaning the mixture for 3 times during the mixing, and then discharging the rubber material;

step 3, putting the rubber material into an open mill, refining for 3 minutes, putting down, hanging up and standing;

and 4, standing the rubber material for 10-14 hours, pressing the rubber material on an open mill for softening, adding sulfur, and refining for 160-1 second, wherein the rubber material is required to be passed through for 3 times in the process, and the roller spacing is about 0.5-1 mm, and then obtaining a finished product.

6. The preparation process of the novel oil-resistant heat-insulating antistatic rubber roller material according to claim 5, characterized in that in the step 1, the rubber feeding temperature of an internal mixer is 100 ℃, and the rubber discharging temperature is 120-130 ℃; and in the step 3, the temperature of the open mill is controlled to be less than or equal to 80 ℃.

7. The preparation process of the novel oil-resistant heat-insulating antistatic rubber roller material as claimed in claim 5, wherein the mixing time of the material in the step 1 is 45 seconds, and the mixing time in the step 2 is 4 minutes in total.

8. The preparation process of the novel oil-resistant heat-insulating antistatic rubber roller material as claimed in claim 5, wherein the standing time in the step 4 is 12 hours, and the mixture is subjected to refining for 180 seconds after sulfur is added.

Background

The rubber roller is a roller-shaped product which is prepared by taking metal or other materials as a core and coating rubber outside the rubber roller through vulcanization, and can be divided into the following components according to the purposes: the rubber roll for paper making, the rubber roll for printing and dyeing, the rubber roll for printing, the rubber roll for hulling, the rubber roll for metallurgy, the rubber roll for mimeographing and the like can be divided into the following parts according to the surface morphology: flat rollers and patterned rubber rollers; the materials can be divided into: butyl rubber roller, butyronitrile rubber roller, polyurethane rubber roller, silicon rubber roller and the like. However, the traditional rubber roller manufacturing process is simple, and the manufactured rubber roller has poor oil resistance, antistatic performance and the like, so that the using effect of the rubber roller is not good enough.

Disclosure of Invention

The invention aims to solve the defects in the prior art and provides a novel oil-resistant heat-insulating antistatic rubber roller material and a preparation process thereof.

In order to achieve the purpose, the invention adopts the following technical scheme:

on the one hand, the novel oil-resistant heat-insulating antistatic rubber roll material comprises the following raw materials in parts by weight:

35-65 parts of nitrile rubber, 8-40 parts of chloroprene rubber, 15-40 parts of natural rubber, 2-6 parts of zinc oxide, 1-3.5 parts of stearic acid, 0.65-0.65 part of composite accelerator p-840.35, 0.8-3 parts of accelerator D, 1-3 parts of anti-aging agent RD, 1-5 parts of mica powder, 6-9 parts of barium sulfate, 1-4 parts of polyethylene glycol, 25-65 parts of white carbon black and 0.8-4.5 parts of sulfur.

Preferably, 45-60 parts of nitrile rubber, 10-38 parts of chloroprene rubber, 20-35 parts of natural rubber, 3.2-6 parts of zinc oxide, 1-3 parts of stearic acid, 0.6-0.6 part of composite accelerator p-840.4, 1-2.3 parts of accelerator D, 1-2 parts of anti-aging agent RD, 1-4.5 parts of mica powder, 7-9 parts of barium sulfate, 1-4 parts of polyethylene glycol, 30-65 parts of white carbon black and 1-4 parts of sulfur.

Preferably, 50-60 parts of nitrile rubber, 15-35 parts of chloroprene rubber, 25-35 parts of natural rubber, 4.2-6 parts of zinc oxide, 1.1-2.2 parts of stearic acid, 0.6-0.6 part of composite accelerator p-840.4, 1-2 parts of accelerator D, 1-1.8 parts of anti-aging agent RD, 2-3.5 parts of mica powder, 7.5-9 parts of barium sulfate, 2-4 parts of polyethylene glycol, 35-65 parts of white carbon black and 2-3.2 parts of sulfur.

Preferably, the rubber composition comprises 50 parts of nitrile rubber, 20 parts of chloroprene rubber, 30 parts of natural rubber, 5.2 parts of zinc oxide, 1.3 parts of stearic acid, p-840.5 parts of composite accelerator, 1.5 parts of accelerator D, 1.5 parts of anti-aging agent RD, 3 parts of mica powder, 8 parts of barium sulfate, 3 parts of polyethylene glycol, 50 parts of white carbon black and 2.2 parts of sulfur.

On the other hand, the preparation process of the novel oil-resistant heat-insulating antistatic rubber roller material comprises the following preparation steps:

step 1, putting plasticated natural rubber, nitrile rubber, chloroprene rubber, zinc oxide, stearic acid, a compounding accelerator p-84, an accelerator D, an anti-aging agent RD, barium sulfate, mica powder and polyethylene glycol into an internal mixer for mixing for 30-50 seconds;

2, adding 185C white carbon black into the mixture, continuously mixing for 2-6 minutes, cleaning the mixture for 3 times during the mixing, and then discharging the rubber material;

step 3, putting the rubber material into an open mill, refining for 3 minutes, putting down, hanging up and standing;

and 4, standing the rubber material for 10-14 hours, pressing the rubber material on an open mill for softening, adding sulfur, and refining for 160-1 second, wherein the rubber material is required to be passed through for 3 times in the process, and the roller spacing is about 0.5-1 mm, and then obtaining a finished product.

Preferably, the rubber feeding temperature of the internal mixer in the step 1 is 100 ℃, and the rubber discharging temperature is 120-130 ℃; and in the step 3, the temperature of the open mill is controlled to be less than or equal to 80 ℃.

Preferably, the mixing time of the materials in the step 1 is 45 seconds, and the mixing time in the step 2 is 4 minutes in total.

Preferably, the standing time in the step 4 is 12 hours, and the refining is carried out for 180 seconds after the sulfur is added.

Compared with the prior art, the rubber roller in the scheme is ozone-resistant, the thermal aging coefficient is more than 0.9, the tensile strength is more than or equal to 11MPa, the thermal conductivity is 0.150W/(m.K), the volume resistivity is 3.22 x 77, the swelling rate is 1.0%, the rubber roller has better oil resistance, good oil resistance and good antistatic property, and is suitable for popularization and use.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Example one

A novel oil-resistant heat-insulating antistatic rubber roll material comprises the following raw materials in parts by weight:

35-65 parts of nitrile rubber, 8-40 parts of chloroprene rubber, 15-40 parts of natural rubber, 2-6 parts of zinc oxide, 1-3.5 parts of stearic acid, 0.65-0.65 part of composite accelerator p-840.35, 0.8-3 parts of accelerator D, 1-3 parts of anti-aging agent RD, 1-5 parts of mica powder, 6-9 parts of barium sulfate, 1-4 parts of polyethylene glycol, 25-65 parts of white carbon black and 0.8-4.5 parts of sulfur.

A preparation process of a novel oil-resistant heat-insulating antistatic rubber roller material comprises the following preparation steps:

step 1, putting plasticated natural rubber, nitrile rubber, chloroprene rubber, zinc oxide, stearic acid, a compounding accelerator p-84, an accelerator D, an anti-aging agent RD, barium sulfate, mica powder and polyethylene glycol into an internal mixer for mixing for 30-50 seconds;

2, adding 185C white carbon black into the mixture, continuously mixing for 2-6 minutes, cleaning the mixture for 3 times during the mixing, and then discharging the rubber material;

step 3, putting the rubber material into an open mill, refining for 3 minutes, putting down, hanging up and standing;

and 4, standing the rubber material for 10-14 hours, pressing the rubber material on an open mill for softening, adding sulfur, and refining for 160-1 second, wherein the rubber material is required to be passed through for 3 times in the process, and the roller spacing is about 0.5-1 mm, and then obtaining a finished product.

In the step 1, the glue feeding temperature of the internal mixer is 100 ℃, and the glue discharging temperature is 120-130 ℃; in the step 3, the temperature of the open mill is controlled to be less than or equal to 80 ℃.

Example two

A novel oil-resistant heat-insulating antistatic rubber roll material comprises the following raw materials in parts by weight:

45-60 parts of nitrile rubber, 10-38 parts of chloroprene rubber, 20-35 parts of natural rubber, 3.2-6 parts of zinc oxide, 1-3 parts of stearic acid, 0.6-0.6 part of composite accelerator p-840.4, 1-2.3 parts of accelerator D, 1-2 parts of anti-aging agent RD, 1-4.5 parts of mica powder, 7-9 parts of barium sulfate, 1-4 parts of polyethylene glycol, 30-65 parts of white carbon black and 1-4 parts of sulfur.

A preparation process of a novel oil-resistant heat-insulating antistatic rubber roller material comprises the following preparation steps:

step 1, putting plasticated natural rubber, nitrile rubber, chloroprene rubber, zinc oxide, stearic acid, a compounding accelerator p-84, an accelerator D, an anti-aging agent RD, barium sulfate, mica powder and polyethylene glycol into an internal mixer for mixing for 45 seconds;

2, adding 185C white carbon black into the mixture, continuously mixing for 4 minutes, cleaning the mixture for 3 times during the mixing, and discharging the rubber material;

step 3, putting the rubber material into an open mill, refining for 3 minutes, putting down, hanging up and standing;

and 4, standing the rubber material for 10 hours, pressing the rubber material on an open mill for softening, adding sulfur, refining for 160-200 seconds, wherein the rubber material is required to be passed through for 3 times, and the roller spacing is about 0.5-1 mm, so that a finished product can be obtained.

EXAMPLE III

A novel oil-resistant heat-insulating antistatic rubber roll material comprises the following raw materials in parts by weight:

50-60 parts of nitrile rubber, 15-35 parts of chloroprene rubber, 25-35 parts of natural rubber, 4.2-6 parts of zinc oxide, 2.2 parts of stearic acid, p-840.4-0.6 part of composite accelerator, 1-2 parts of accelerator D, 1-1.8 parts of anti-aging agent RD, 3.5 parts of mica powder, 7.5-9 parts of barium sulfate, 2-4 parts of polyethylene glycol, 35-65 parts of white carbon black and 2-3.2 parts of sulfur.

A preparation process of a novel oil-resistant heat-insulating antistatic rubber roller material comprises the following preparation steps:

step 1, putting plasticated natural rubber, nitrile rubber, chloroprene rubber, zinc oxide, stearic acid, a compounding accelerator p-84, an accelerator D, an anti-aging agent RD, barium sulfate, mica powder and polyethylene glycol into an internal mixer for mixing for 45 seconds;

2, adding 185C white carbon black into the mixture, continuously mixing for 4 minutes, cleaning the mixture for 3 times during the mixing, and discharging the rubber material;

step 3, putting the rubber material into an open mill, refining for 3 minutes, putting down, hanging up and standing;

and 4, standing the rubber material for 10-14 hours, pressing the rubber material on an open mill for softening, adding sulfur, and refining for 160-1 second, wherein the rubber material is required to be passed through for 3 times in the process, and the roller spacing is about 0.5-1 mm, and then obtaining a finished product.

Example four

A novel oil-resistant heat-insulating antistatic rubber roll material comprises the following raw materials in parts by weight:

50 parts of nitrile rubber, 20 parts of chloroprene rubber, 30 parts of natural rubber, 5.2 parts of zinc oxide, 1.3 parts of stearic acid, p-840.5 parts of composite accelerator, 1.5 parts of accelerator D, 1.5 parts of anti-aging agent RD, 3 parts of mica powder, 8 parts of barium sulfate, 3 parts of polyethylene glycol, 50 parts of white carbon black and 2.2 parts of sulfur.

A preparation process of a novel oil-resistant heat-insulating antistatic rubber roller material comprises the following preparation steps:

step 1, putting plasticated natural rubber, nitrile rubber, chloroprene rubber, zinc oxide, stearic acid, a compounding accelerator p-84, an accelerator D, an anti-aging agent RD, barium sulfate, mica powder and polyethylene glycol into an internal mixer for mixing for 45 seconds;

2, adding 185C white carbon black into the mixture, continuously mixing for 4 minutes, cleaning the mixture for 3 times during the mixing, and discharging the rubber material;

step 3, putting the rubber material into an open mill, refining for 3 minutes, putting down, hanging up and standing;

and 4, standing the rubber material for 12 hours, pressing the rubber material on an open mill to be soft, adding sulfur, and refining for 180 seconds, wherein the rubber material is required to be passed through for 3 times in the process, and the roller spacing is about 0.5-1 mm, and then obtaining a finished product.

The performance tests of the rubber rollers obtained in the embodiments 1 to 4 show that the performance of the embodiment 4 is the best, and compared with the prior art, the rubber roller obtained in the embodiment 4 has the advantages of ozone resistance, thermal aging resistance coefficient of more than 0.9, tensile strength of more than or equal to 11MPa, thermal conductivity of 0.150W/(m.K), volume resistivity of 3.22 x 77 and swelling rate of 1.0%. Compared with the prior art, the composite material has better oil resistance, good oil resistance and good antistatic property.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.