阅读说明：本技术 防静电橡胶制品及其制备方法 (Antistatic rubber product and preparation method thereof ) 是由 陆雪龙 胡银 苏福男 于 2020-04-26 设计创作，主要内容包括：本发明公开了一种防静电橡胶制品及其制备方法,所述制备方法包括：将天然橡胶、顺丁胶、硫磺、硬脂酸、炭黑、氧化锌、碳酸钙、二辛脂、促进剂、偶联剂和防老剂混合,得到混合料；将混合料放入密炼机中,排出后得到混炼胶；将混炼胶放入开炼机中进行热炼,得到防静电橡胶制品。解决了传统的橡胶材料,当其表面受到摩擦时,处于静止状态的电荷积聚,容易形成较大静电的问题。(The invention discloses an antistatic rubber product and a preparation method thereof, wherein the preparation method comprises the following steps: mixing natural rubber, butadiene rubber, sulfur, stearic acid, carbon black, zinc oxide, calcium carbonate, dioctyl ester, an accelerator, a coupling agent and an anti-aging agent to obtain a mixture; putting the mixture into an internal mixer, and discharging to obtain rubber compound; and (4) putting the mixed rubber into an open mill for hot milling to obtain the antistatic rubber product. The problem that when the surface of the traditional rubber material is rubbed, static charges are accumulated, and large static electricity is easily formed is solved.)

1. The preparation method of the antistatic rubber product is characterized by comprising the following steps:

(1) mixing natural rubber, butadiene rubber, sulfur, stearic acid, carbon black, zinc oxide, calcium carbonate, dioctyl ester, an accelerator, a coupling agent and an anti-aging agent to obtain a mixture;

(2) putting the mixture into an internal mixer, and discharging to obtain rubber compound;

(3) and (4) putting the mixed rubber into an open mill for hot milling to obtain the antistatic rubber product.

2. The production process according to claim 1, wherein the cis-butadiene rubber is used in an amount of 40 to 70 parts by weight, the sulfur is used in an amount of 1 to 5 parts by weight, the stearic acid is used in an amount of 10 to 20 parts by weight, the carbon black is used in an amount of 1 to 5 parts by weight, the zinc oxide is used in an amount of 2 to 7 parts by weight, the calcium carbonate is used in an amount of 10 to 20 parts by weight, the dioctyl ester is used in an amount of 2 to 5 parts by weight, the accelerator is used in an amount of 1 to 5 parts by weight, the coupling agent is used in an amount of 1 to 5 parts by weight, and the anti-aging agent is used in an amount of 2 to 5 parts by weight, relative to 100 parts by.

3. The production process according to claim 2, wherein the cis-butadiene rubber is used in an amount of 50 to 60 parts by weight, the sulfur is used in an amount of 2 to 3 parts by weight, the stearic acid is used in an amount of 13 to 17 parts by weight, the carbon black is used in an amount of 2 to 3 parts by weight, the zinc oxide is used in an amount of 3 to 5 parts by weight, the calcium carbonate is used in an amount of 13 to 17 parts by weight, the dioctyl ester is used in an amount of 3 to 4 parts by weight, the accelerator is used in an amount of 2 to 3 parts by weight, the coupling agent is used in an amount of 2 to 3 parts by weight, and the anti-aging agent is used in an amount of 3 to 4 parts by weight, relative to 100 parts by.

4. The process according to claim 1, wherein the accelerator is one or more of N-cyclohexyl-2-benzothiazolesulfenamide, N-t-butyl-2-benzothiazolesulfenamide and N-oxydiethylene-2-benzothiazolesulfenamide.

5. The production method according to claim 1, wherein the coupling agent is one or more selected from the group consisting of a silane coupling agent KH550, a silane coupling agent KH560, a silane coupling agent D L602, and a silane coupling agent D L171.

6. The production method according to claim 1, wherein the antioxidant is antioxidant RD or antioxidant 124.

7. The production method according to claim 1, wherein the banburying conditions include: the temperature is 100 ℃ and 110 ℃, and the time is 10-20 min.

8. The method of claim 1, wherein the conditions of the cooking comprise: the temperature is 120 ℃ and 130 ℃, and the time is 5-15 min.

9. A method for producing an antistatic rubber article, characterized in that the antistatic rubber article is produced by the production method according to any one of claims 1 to 7.

Technical Field

The invention relates to the field of rubber preparation, in particular to an anti-static rubber product and a preparation method thereof.

Background

Rubber is an electrically insulating material, and when its surface is subjected to friction, charges in a static state accumulate, forming static electricity. When the static electricity is accumulated to a certain amount, it is discharged in the form of a spark. If the discharge amount is slight, the discharge amount does not harm human bodies, but when the discharge amount reaches a certain degree, electric shock is caused. In order to ensure the safety of human bodies, the rubber used in such an application must be an antistatic rubber capable of conducting static electricity. The risks associated with static electricity are roughly several: 1. when static electricity is released, fire can be caused if fire and flammable and explosive substances exist around the static electricity; 2. the human body is injured, and although the electric shock is generally not fatal, the electric shock is always harmful to the human body; 3. the electrostatically charged surface will attract surrounding dust.

Disclosure of Invention

The invention aims to provide an anti-static rubber product and a preparation method thereof, which solve the problem that when the surface of the traditional rubber material is rubbed, static charges are accumulated and large static electricity is easily formed.

In order to achieve the above object, the present invention provides a method for preparing an antistatic rubber article, comprising:

(1) mixing natural rubber, butadiene rubber, sulfur, stearic acid, carbon black, zinc oxide, calcium carbonate, dioctyl ester, an accelerator, a coupling agent and an anti-aging agent to obtain a mixture;

(2) putting the mixture into an internal mixer, and discharging to obtain rubber compound;

(3) and (4) putting the mixed rubber into an open mill for hot milling to obtain the antistatic rubber product.

The invention also provides a preparation method of the anti-static rubber product, and the anti-static rubber product is prepared by the preparation method.

Through the technical scheme, the invention provides an anti-static rubber product and a preparation method thereof, wherein the preparation method comprises the following steps: mixing natural rubber, butadiene rubber, sulfur, stearic acid, carbon black, zinc oxide, calcium carbonate, dioctyl ester, an accelerator, a coupling agent and an anti-aging agent to obtain a mixture; putting the mixture into an internal mixer, and discharging to obtain rubber compound; placing the mixed rubber into an open mill for hot refining to obtain an antistatic rubber product; through the synergistic effect of the raw materials, the prepared antistatic rubber product has excellent antistatic capability and strong mechanical strength.

Additional features and advantages of the invention will be set forth in the detailed description which follows.

Detailed Description

The following describes in detail specific embodiments of the present invention. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.

The endpoints of the ranges and any values disclosed herein are not limited to the precise range or value, and such ranges or values should be understood to encompass values close to those ranges or values. For ranges of values, between the endpoints of each of the ranges and the individual points, and between the individual points may be combined with each other to give one or more new ranges of values, and these ranges of values should be considered as specifically disclosed herein.

The invention provides a preparation method of an antistatic rubber product, which comprises the following steps:

(1) mixing natural rubber, butadiene rubber, sulfur, stearic acid, carbon black, zinc oxide, calcium carbonate, dioctyl ester, an accelerator, a coupling agent and an anti-aging agent to obtain a mixture;

(2) putting the mixture into an internal mixer, and discharging to obtain rubber compound;

(3) and (4) putting the mixed rubber into an open mill for hot milling to obtain the antistatic rubber product.

In a preferred embodiment of the present invention, the cis-butadiene rubber is used in an amount of 40 to 70 parts by weight, the sulfur is used in an amount of 1 to 5 parts by weight, the stearic acid is used in an amount of 10 to 20 parts by weight, the carbon black is used in an amount of 1 to 5 parts by weight, the zinc oxide is used in an amount of 2 to 7 parts by weight, the calcium carbonate is used in an amount of 10 to 20 parts by weight, the dioctyl ester is used in an amount of 2 to 5 parts by weight, the accelerator is used in an amount of 1 to 5 parts by weight, the coupling agent is used in an amount of 1 to 5 parts by weight, and the anti-aging agent is used in an amount of 2 to 5 parts by weight, relative to 100 parts by weight.

In a preferred embodiment of the present invention, the cis-butadiene rubber is used in an amount of 50 to 60 parts by weight, the sulfur is used in an amount of 2 to 3 parts by weight, the stearic acid is used in an amount of 13 to 17 parts by weight, the carbon black is used in an amount of 2 to 3 parts by weight, the zinc oxide is used in an amount of 3 to 5 parts by weight, the calcium carbonate is used in an amount of 13 to 17 parts by weight, the dioctyl ester is used in an amount of 3 to 4 parts by weight, the accelerator is used in an amount of 2 to 3 parts by weight, the coupling agent is used in an amount of 2 to 3 parts by weight, and the anti-aging agent is used in an amount of 3 to 4 parts by weight, relative to 100 parts by weight.

In a preferred embodiment of the invention, the accelerator is one or more of N-cyclohexyl-2-benzothiazolesulfenamide, N-tert-butyl-2-benzothiazolesulfenamide and N-oxydiethylene-2-benzothiazolesulfenamide.

In a preferred embodiment of the present invention, the coupling agent is one or more selected from the group consisting of a silane coupling agent KH550, a silane coupling agent KH560, a silane coupling agent D L602, and a silane coupling agent D L171.

In a preferred embodiment of the invention, the anti-aging agent is anti-aging agent RD or anti-aging agent 124.

In a preferred embodiment of the present invention, the banburying conditions include: the temperature is 100 ℃ and 110 ℃, and the time is 10-20 min.

In a preferred embodiment of the present invention, the conditions of the cooking include: the temperature is 120 ℃ and 130 ℃, and the time is 5-15 min.

The invention also provides a preparation method of the anti-static rubber product, and the anti-static rubber product is prepared by the preparation method.

The present invention will be described in detail below by way of examples.