阅读说明：本技术 一种高强度超耐磨胶辊用nbr胶料 (NBR (nitrile-butadiene rubber) material for high-strength super-wear-resistant rubber roll ) 是由 张子阳 井垒 周国荣 于 2019-12-16 设计创作，主要内容包括：本发明公开了一种高强度超耐磨胶辊用NBR胶料,按质量份数,其组成成分如下：丁腈橡胶80份；羧基丁腈橡胶20份；氧化锌：4～6份；硬脂酸1～3份；炭黑30～60份；半补强炉黑20～30份；软化剂1～2份；防老剂RD 1～1.5份；防老剂BLE 1～1.5份；防老剂MB 1～1.5份；促进剂DTDM 1.5～2份；促进剂TMTD2～3份；加工油1～3份。本发明胶料综合物理性能优良,硬度变化小,拉伸强度高,利于加工,并且具有良好的耐磨性、高强度和稳定性,综合性能优异,能够满足目前常见常用的胶辊胶料的使用要求。(The invention discloses an NBR (nitrile-butadiene rubber) material for a high-strength super-wear-resistant rubber roll, which comprises the following components in parts by weight: 80 parts of nitrile rubber; 20 parts of carboxyl nitrile rubber; zinc oxide: 4-6 parts; 1-3 parts of stearic acid; 30-60 parts of carbon black; 20-30 parts of semi-reinforcing furnace black; 1-2 parts of a softener; 1-1.5 parts of an anti-aging agent RD; 1-1.5 parts of an anti-aging agent BLE; 1-1.5 parts of an anti-aging agent MB; 1.5-2 parts of an accelerator DTDM; promoter TMTD 2-3 parts; 1-3 parts of processing oil. The rubber material disclosed by the invention is excellent in comprehensive physical properties, small in hardness change, high in tensile strength, favorable for processing, good in wear resistance, high in strength and stability, excellent in comprehensive properties and capable of meeting the use requirements of the common rubber roller rubber materials at present.)

1. The NBR rubber material for the high-strength super-wear-resistant rubber roll is characterized by comprising the following components in parts by mass: 80 parts of nitrile rubber; 20 parts of carboxyl nitrile rubber; zinc oxide: 4-6 parts; 1-3 parts of stearic acid; 30-60 parts of carbon black; 20-30 parts of semi-reinforcing furnace black; 1-2 parts of a softener; 1-1.5 parts of an anti-aging agent RD; 1-1.5 parts of an anti-aging agent BLE; 1-1.5 parts of an anti-aging agent MB; 1.5-2 parts of an accelerator DTDM; promoter TMTD 2-3 parts; 1-3 parts of processing oil.

2. The NBR rubber compound for the high-strength super-wear-resistant rubber roll as claimed in claim 1, which comprises the following components in parts by weight: 80 parts of nitrile rubber; 20 parts of carboxyl nitrile rubber; zinc oxide: 4 parts of a mixture; 3 parts of stearic acid; 40 parts of carbon black; 25 parts of semi-reinforcing furnace black; 1 part of a softener; 1 part of an anti-aging agent RD; 1.5 parts of an anti-aging agent BLE; 1.5 parts of an anti-aging agent MB; 1.5 parts of an accelerator DTDM; 3 parts of an accelerator TMTD; and 2 parts of processing oil.

3. The NBR rubber compound for the high-strength super-wear-resistant rubber roll as claimed in claim 1, which comprises the following components in parts by weight: 80 parts of nitrile rubber; 20 parts of carboxyl nitrile rubber; zinc oxide: 6 parts of (1); 1 part of stearic acid; 30 parts of carbon black; 30 parts of semi-reinforcing furnace black; 2 parts of a softener; 1.5 parts of an anti-aging agent RD; 1 parts of an anti-aging agent BLE; 1 part of an anti-aging agent MB; 2 parts of an accelerator DTDM; 2 parts of an accelerator TMTD; 1 part of processing oil.

4. The NBR rubber material for the high-strength super-wear-resistant rubber roll as claimed in claim 1, which comprises the following components in parts by weight: 80 parts of nitrile rubber; 20 parts of carboxyl nitrile rubber; zinc oxide: 5 parts of a mixture; 2 parts of stearic acid; 60 parts of carbon black; 20 parts of semi-reinforcing furnace black; 1.5 parts of a softener; 1.5 parts of an anti-aging agent RD; 1 parts of an anti-aging agent BLE; 1.5 parts of an anti-aging agent MB; 1.5 parts of an accelerator DTDM; 3 parts of an accelerator TMTD; and 2 parts of processing oil.

5. The NBR rubber material for the high-strength super-wear-resistant rubber roll according to any one of claims 1 to 4, wherein the acrylonitrile-butadiene rubber has an acrylonitrile content of 30 to 35%.

Technical Field

The invention relates to rubber, in particular to an NBR (nitrile-butadiene rubber) material for a high-strength super-wear-resistant rubber roll.

Background

The rubber roller is a roller-shaped product which is made by taking metal or other materials as a core and coating rubber outside by vulcanization, generally comprises outer layer rubber, a hard rubber layer, a metal core, a roller neck and a vent hole, and the processing comprises the working procedures of roller core sand blasting, bonding treatment, rubberizing forming, cloth wrapping, iron wire winding, vulcanizing in a vulcanizing tank, surface processing and the like. The rubber roller is widely applied to various industries such as papermaking, printing and dyeing, printing, grain processing, metallurgy, plastic processing and the like.

For the rubber roller, the strength and the wear resistance determine the service life, in order to increase the service life, not only the maintenance and attention should be paid to during the use, but also the strengthening of the strength and the wear resistance of the material during the production is a long-term concern in the industry.

Disclosure of Invention

The invention aims to solve the problems and provides an NBR rubber material for a high-strength super-wear-resistant rubber roll, which has the advantages of excellent wear resistance, higher strength and low cost and is suitable for various common rubber rolls.

In order to achieve the purpose, the invention provides the following technical scheme: the NBR rubber material for the high-strength super-wear-resistant rubber roll comprises the following components in parts by weight: 80 parts of nitrile rubber; 20 parts of carboxyl nitrile rubber; zinc oxide: 4-6 parts; 1-3 parts of stearic acid; 30-60 parts of carbon black; 20-30 parts of semi-reinforcing furnace black; 1-2 parts of a softener; 1-1.5 parts of an anti-aging agent RD; 1-1.5 parts of an anti-aging agent BLE; 1-1.5 parts of an anti-aging agent MB; 1.5-2 parts of an accelerator DTDM; promoter TMTD 2-3 parts; 1-3 parts of processing oil.

Preferably, the NBR rubber material for the high-strength super-wear-resistant rubber roll comprises the following components in parts by weight: 80 parts of nitrile rubber; 20 parts of carboxyl nitrile rubber; zinc oxide: 4 parts of a mixture; 3 parts of stearic acid; 40 parts of carbon black; 25 parts of semi-reinforcing furnace black; 1 part of a softener; 1 part of an anti-aging agent RD; 1.5 parts of an anti-aging agent BLE; 1.5 parts of an anti-aging agent MB; 1.5 parts of an accelerator DTDM; 3 parts of an accelerator TMTD; and 2 parts of processing oil.

Preferably, the NBR rubber material for the high-strength super-wear-resistant rubber roll comprises the following components in parts by weight: 80 parts of nitrile rubber; 20 parts of carboxyl nitrile rubber; zinc oxide: 6 parts of (1); 1 part of stearic acid; 30 parts of carbon black; 30 parts of semi-reinforcing furnace black; 2 parts of a softener; 1.5 parts of an anti-aging agent RD; 1 part of an anti-aging agent BLE; 1 part of an anti-aging agent MB; 2 parts of an accelerator DTDM; 2 parts of an accelerator TMTD; 1 part of processing oil.

Preferably, the NBR rubber material for the high-strength super-wear-resistant rubber roll comprises the following components in parts by weight: 80 parts of nitrile rubber; 20 parts of carboxyl nitrile rubber; zinc oxide: 5 parts of a mixture; 2 parts of stearic acid; 60 parts of carbon black; 20 parts of semi-reinforcing furnace black; 1.5 parts of a softener; 1.5 parts of an anti-aging agent RD; 1 part of an anti-aging agent BLE; 1.5 parts of an anti-aging agent MB; 1.5 parts of an accelerator DTDM; 3 parts of an accelerator TMTD; and 2 parts of processing oil.

The nitrile rubber, NBR for short, is prepared by emulsion polymerization of butadiene and acrylonitrile, and the acrylonitrile content (%) of the nitrile rubber selected by the invention is 30-35.

The carboxyl nitrile rubber is XNBR for short, and the relative density is 0.98-0.99. The carboxyl-based nitrile rubber is introduced, so that the polarity is increased, the strength can be improved, the rubber material has good aging resistance, and the wear resistance and the tear strength are further improved.

The carbon black and the semi-reinforcing furnace black can enhance the conventional physical properties and a certain friction force required by the rubber compound and prolong the service life of the rubber compound.

The anti-aging agent is a mixture of an anti-aging agent RD, an anti-aging agent BLE and an anti-aging agent MB, so that the stability of the rubber material can be improved, and the thermal aging resistance of the rubber material can be enhanced.

The invention also discloses a preparation method of the NBR rubber material for the high-strength super-wear-resistant rubber roll, which comprises the following preparation steps according to the performance requirement characteristics of a formula.

(1) Preparing materials, wherein according to the whole formula and the mixing characteristic of rubber, the preparation sequence is as follows:

nitrile rubber, carboxyl nitrile rubber → semi-reinforcing furnace black, carbon black → zinc oxide, stearic acid, anti-aging agent, processing oil → softener → accelerator;

(2) the first mixing step, namely, putting the nitrile rubber, the carboxyl nitrile rubber, the anti-aging agent, the zinc oxide and the stearic acid into an internal mixer for mixing for 60 s; adding a softener, adding the semi-reinforcing furnace black, the carbon black and the processing oil into an internal mixer, mixing for 80-120 s, cleaning an upper top plug, finally mixing for 50-80s, discharging and discharging to obtain a mixed rubber A for later use;

(3) and (3) mixing for the second time, adding the accelerator into the mixed rubber A, mixing for 60-100 seconds, cleaning, mixing for 30-60 seconds again, and discharging for later use after sufficient mixing dispersion is ensured.

The nitrile rubber is adopted as the main rubber, the wear resistance is excellent, and the nitrile rubber is matched with the carboxyl nitrile rubber for use, so that the rubber material has good aging resistance, and the wear resistance and the tearing strength are further improved; and a proper protection system is matched, so that the product has a good service life.

The product has the advantages of excellent aging resistance, high tensile strength, excellent tear resistance, favorable processing, favorable abrasion resistance, aging resistance and stability, excellent comprehensive performance and low cost, and can meet the use requirements of the common rubber rollers at present.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments of the present invention, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.