阅读说明：本技术 一种可降低三角带底胶动态生热的配方 (Formula capable of reducing dynamic heat generation of triangular belt primer ) 是由 张杨 鲍人平 范涛 王江照 于 2020-05-29 设计创作，主要内容包括：一种可降低三角带底胶动态生热的配方,属于三角带制备技术领域,按重量份计,主要由以下组分组成：橡胶100份、促进剂1-3份、硫磺2-3.5份、硬脂酸1.5-3份、氧化锌5-8份、炭黑50-90份、补强填料0-30份、防老剂2-4份、软化剂2-8份；本发明通过对橡胶材料进行设计,硫化体系和补强填充体系的设计,降低动态升温,增强三角带的疲劳寿命时长。(A formula capable of reducing dynamic heat generation of a triangular belt primer belongs to the technical field of triangular belt preparation, and mainly comprises the following components in parts by weight: 100 parts of rubber, 1-3 parts of accelerator, 2-3.5 parts of sulfur, 1.5-3 parts of stearic acid, 5-8 parts of zinc oxide, 50-90 parts of carbon black, 0-30 parts of reinforcing filler, 2-4 parts of anti-aging agent and 2-8 parts of softener; according to the invention, through designing the rubber material and designing the vulcanization system and the reinforcing filling system, the dynamic temperature rise is reduced, and the fatigue life of the V-belt is prolonged.)

1. A formula capable of reducing dynamic heat generation of a triangular belt primer is characterized in that: the formula mainly comprises the following components in parts by weight: 100 parts of rubber, 1-3 parts of accelerator, 2-3.5 parts of sulfur, 1.5-3 parts of stearic acid, 5-8 parts of zinc oxide, 50-90 parts of carbon black, 0-30 parts of reinforcing filler, 2-4 parts of anti-aging agent and 2-8 parts of softener.

2. The formula for reducing the dynamic heat generation of the triangular belt primer according to claim 1, wherein the formula comprises the following components in percentage by weight: the rubber comprises any one or combination of more of natural rubber, styrene butadiene rubber and butadiene rubber.

3. The formula for reducing the dynamic heat generation of the triangular belt primer according to claim 1, wherein the formula comprises the following components in percentage by weight: the reinforcing filler is calcium carbonate.

4. The formula for reducing the dynamic heat generation of the triangular belt primer according to claim 1, wherein the formula comprises the following components in percentage by weight: the accelerators include N-cyclohexyl-2-benzothiazole sulfenamide and 2, 2' -dithiodibenzothiazole.

5. The formula for reducing the dynamic heat generation of the triangular belt primer according to claim 1, wherein the formula comprises the following components in percentage by weight: the carbon black comprises any one or combination of N326 carbon black and N550 carbon black.

6. The formula for reducing the dynamic heat generation of the triangular belt primer according to claim 1, wherein the formula comprises the following components in percentage by weight: the anti-aging agent comprises octylated diphenylamine and an anti-aging agent 4010 NA.

7. The formula for reducing the dynamic heat generation of the triangular belt primer according to claim 1, wherein the formula comprises the following components in percentage by weight: the softening agent comprises petroleum resin and aromatic oil.

8. A preparation method of a formula capable of reducing dynamic heat generation of a triangular belt primer is characterized by comprising the following steps: the method comprises the following steps:

the method comprises the following steps: putting 65 parts of natural rubber, 25 parts of butadiene styrene rubber, 10 parts of butadiene rubber, 12.5 parts of N326 carbon black and 22.5 parts of N550 carbon black into an internal mixer for kneading for 50S;

step two: then the rest 12.5 parts of N326 carbon black, 22.5 parts of N550 carbon black and 20 parts of calcium carbonate are put into the internal mixer again for mixing for 40S;

step three: adding the rest components except 2.8 parts of sulfur into the internal mixer again, mixing until the temperature reaches 130 ℃, and then discharging rubber to the first open mill;

step four: mixing the mixed rubber obtained in the third step on a first open mill, cooling to 110 ℃, adding 2.8 parts of sulfur, carrying out rubber turning and mixing for 120S, and discharging rubber to a second open mill;

step five: and C, performing rubber turning and mixing on the mixed rubber obtained in the step four in a second open mill for 140 seconds, and discharging the mixed rubber to a third open mill for sheet discharging.

Technical Field

The invention belongs to the technical field of transmission belts, and particularly relates to a formula capable of reducing dynamic heat generation of a base rubber of a V-belt.

Background

The wrapping cloth V belt has high cost performance, the manufacturing process is simpler than that of a trimming V belt, and the wrapping cloth V belt still occupies the main market of the transmission belt at home and abroad at present, so that the improvement of the dynamic performance of the wrapping cloth V belt to ensure the market competitiveness of enterprises is particularly important.

The dynamic performance of the V-belt is mainly considered from the aspects of low flex cracking and low dynamic compression temperature rise, and the dynamic performance of the V-belt is researched from the direction of loss factors in recent years due to large judgment error of a flex cracking test by naked eyes. The research shows that the fatigue life of the V-belt has a great relationship with the temperature, the fatigue life is reduced by 35 to 45 percent when the environmental temperature is increased by 10 degrees, and the fatigue life of the V-belt is directly determined by the dynamic temperature rise.

Disclosure of Invention

The invention aims to provide a formula capable of reducing dynamic heat generation of a triangular belt primer so as to solve the problems in the background technology.

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

a formula capable of reducing dynamic heat generation of a triangular belt primer mainly comprises the following components in parts by weight: 100 parts of rubber, 1-3 parts of accelerator, 2-3.5 parts of sulfur, 1.5-3 parts of stearic acid, 5-8 parts of zinc oxide, 50-90 parts of carbon black, 0-30 parts of reinforcing filler, 2-4 parts of anti-aging agent and 2-8 parts of softener.

Further, the rubber comprises any one or combination of more of natural rubber, styrene butadiene rubber and butadiene rubber.

Furthermore, the reinforcing filler is calcium carbonate.

Further, the accelerators include N-cyclohexyl-2-benzothiazolesulfenamide and 2, 2' -dithiodibenzothiazole.

Further, the carbon black includes any one of or a combination of N326 carbon black and N550 carbon black.

Further, the anti-aging agent comprises octylated diphenylamine and anti-aging agent 4010NA

Further, the softening agent includes petroleum resin and aromatic oil.

A preparation method of a formula capable of reducing dynamic heat generation of a triangular belt primer comprises the following steps:

the method comprises the following steps: putting 65 parts of natural rubber, 25 parts of butadiene styrene rubber, 10 parts of butadiene rubber, 12.5 parts of N326 carbon black and 22.5 parts of N550 carbon black into an internal mixer for kneading for 50S;

step two: then the rest 12.5 parts of N326 carbon black, 22.5 parts of N550 carbon black and 20 parts of calcium carbonate are put into the internal mixer again for mixing for 40S;

step three: adding the rest components except 2.8 parts of sulfur into the internal mixer again to mix until the temperature reaches 130 ℃, and then discharging rubber to the first open mill;

step four: mixing the mixed rubber obtained in the third step on a first open mill, cooling to 110 ℃, adding 2.8 parts of sulfur, carrying out rubber turning and mixing for 120S, and discharging the rubber to a second open mill;

step five: and C, performing rubber turning and mixing on the mixed rubber obtained in the step four in a second open mill for 140 seconds, and discharging the mixed rubber to a third open mill for sheet discharging.

Compared with the prior art, the invention has the beneficial effects that: according to the invention, through designing the rubber material and designing the vulcanization system and the reinforcing filling system, the dynamic temperature rise is reduced, and the fatigue life of the triangular belt is prolonged.

Detailed Description

The technical solutions in the embodiments of the present invention will be described below clearly and completely, and obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments.