阅读说明：本技术 一种环保型橡胶垫的加工工艺 (Processing technology of environment-friendly rubber pad ) 是由 张世旭 于 2020-06-23 设计创作，主要内容包括：本发明公开了一种环保型橡胶垫的加工工艺,该环保型橡胶垫的加工工艺包括以下步骤：首先将聚硫橡胶在密炼机中进行混炼5-10min,控制温度为265-300℃,控制压力为12MPa其中密炼机的转速为130r/min；本发明所述的一种环保型橡胶垫的加工工艺,通过对膨润土进行改性处理,膨润土在水介质中具有良好的悬浮性和分散性,使涂料不易沉淀,不易分层,颜色均匀,从而改善涂料悬浮液的稳定性,而且涂刷性能好,能够形成厚薄均匀平整光滑的涂层,其于这一点,涂料中可以加入一些重质碳酸钙代替轻质碳酸钙,从而降低成本,将改进膨润土加入橡胶垫生产过程中,可显著提升橡胶垫的外观品质,且加工工艺简单,具有适用性。(The invention discloses a processing technology of an environment-friendly rubber pad, which comprises the following steps: firstly, the polysulfide rubber is mixed in an internal mixer for 5-10min, the temperature is controlled to be 265-300 ℃, the pressure is controlled to be 12MPa, and the rotating speed of the internal mixer is 130 r/min; according to the processing technology of the environment-friendly rubber pad, the bentonite is subjected to modification treatment, so that the bentonite has good suspension property and dispersibility in an aqueous medium, the coating is not easy to precipitate and delaminate, the color is uniform, the stability of the coating suspension is improved, the coating has good brushing performance, a coating with uniform thickness, flatness and smoothness can be formed, and at the point, heavy calcium carbonate can be added into the coating to replace light calcium carbonate, so that the cost is reduced, the improved bentonite is added into the production process of the rubber pad, the appearance quality of the rubber pad can be remarkably improved, the processing technology is simple, and the processing technology has applicability.)

1. The processing technology of the environment-friendly rubber pad is characterized in that the rubber pad comprises the following components in parts by weight: 50-60 parts of polysulfide rubber, 2-9 parts of polyisoprene, 5-6 parts of aluminum hydroxide, 5-9 parts of a surface modifier, 4-6 parts of titanium dioxide, 20-25 parts of butadiene, 6-9 parts of modified bentonite, 2-6 parts of an accelerator, 4-8 parts of a plasticizer, 18-25 parts of a reinforcing agent and 2-4 parts of a dispersing agent.

2. The processing technology of the environment-friendly rubber pad as claimed in claim 1, wherein the processing technology comprises the following steps: the processing of the rubber pad comprises the following steps:

firstly, mixing polysulfide rubber in an internal mixer for 5-10min, controlling the temperature at 265 ℃ and 300 ℃, and controlling the pressure at 12MPa, wherein the rotating speed of the internal mixer is 130 r/min;

step two, mixing the middle section: sequentially adding polyisoprene, aluminum hydroxide, a surface modifier, titanium dioxide, butadiene and an accelerator into an internal mixer;

polishing bentonite, adding 20-50ml of polishing liquid into bentonite, and polishing the bentonite by making the polishing pad rotating at a specified speed contact with the bentonite, and a defect removing layer forming step of maintaining the state of making the polishing pad rotating at the specified speed contact with the bentonite held on the rotating chuck worktable in the polishing step to prepare modified bentonite;

and step four, adding a plasticizer, a reinforcing agent, a dispersing agent and modified bentonite, controlling the temperature to be 60-75 ℃, controlling the pressure to be 7-10MPa, mixing and reacting for 7 minutes while stirring, cooling to room temperature to obtain a rubber sheet, transferring the rubber sheet into a mold of a vulcanizing machine, vulcanizing for 13-16 minutes at the vulcanization temperature of 100 ℃ and 155 ℃, vulcanizing and molding, and cutting to finally finish the processing of the rubber sheet.

3. The processing technology of the environment-friendly rubber pad as claimed in claim 2, wherein the processing technology comprises the following steps: the temperature of the middle-section mixing is controlled to be 115-122 ℃, the pressure is controlled to be 12MPa, and the mixing reaction is carried out for 10-12 minutes while stirring.

4. The processing technology of the environment-friendly rubber pad as claimed in claim 2, wherein the processing technology comprises the following steps: the rubber reinforcing agent is a compounding agent capable of improving the strength of rubber products.

5. The processing technology of the environment-friendly rubber pad as claimed in claim 2, wherein the processing technology comprises the following steps: as the plasticizer, any of phthalate, aliphatic dibasic acid ester, fatty acid ester, benzenepolycarboxylic acid ester, polyhydric alcohol ester, epoxy hydrocarbon and alkylsulfonic acid ester can be used.

6. The processing technology of the environment-friendly rubber pad as claimed in claim 2, wherein the processing technology comprises the following steps: the accelerator is selected from any one of triethylene diamine, A-1, A-33 and DC-829.

Technical Field

The invention belongs to the field of rubber pad processing, and particularly relates to a processing technology of an environment-friendly rubber pad.

Background

Gaskets made of rubber are generally seen to be transparent rubber gaskets, EVA rubber gaskets, round rubber gaskets, semi-circle transparent rubber gaskets, silica gel gaskets, rubber gaskets, PU, PVC, EPDM transparent gaskets, semi-sphere rubber gaskets, glass gaskets, crash pads, non-slip gaskets, shockproof gaskets, anticorrosion gaskets, waterproof gaskets, sponge gaskets, foam cotton gaskets and the like;

the traditional coating process is complex in processing flow, and workpieces are easy to corrode after being used for a long time.

Disclosure of Invention

The invention mainly aims to provide a processing technology of an environment-friendly rubber pad, which can effectively solve the problems in the background technology.

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

the processing technology of the environment-friendly rubber pad comprises the following components in parts by weight: 50-60 parts of polysulfide rubber, 2-9 parts of polyisoprene, 5-6 parts of aluminum hydroxide, 5-9 parts of a surface modifier, 4-6 parts of titanium dioxide, 20-25 parts of butadiene, 6-9 parts of modified bentonite, 2-6 parts of an accelerator, 4-8 parts of a plasticizer, 18-25 parts of a reinforcing agent and 2-4 parts of a dispersing agent.

The processing of the rubber pad comprises the following steps:

firstly, mixing polysulfide rubber in an internal mixer for 5-10min, controlling the temperature at 265 ℃ and 300 ℃, and controlling the pressure at 12MPa, wherein the rotating speed of the internal mixer is 130 r/min;

step two, mixing the middle section: sequentially adding polyisoprene, aluminum hydroxide, a surface modifier, titanium dioxide, butadiene and an accelerator into an internal mixer;

polishing bentonite, adding 20-50ml of polishing liquid into bentonite, and polishing the bentonite by making the polishing pad rotating at a specified speed contact with the bentonite, and a defect removing layer forming step of maintaining the state of making the polishing pad rotating at the specified speed contact with the bentonite held on the rotating chuck worktable in the polishing step to prepare modified bentonite;

and step four, adding a plasticizer, a reinforcing agent, a dispersing agent and modified bentonite, controlling the temperature to be 60-75 ℃, controlling the pressure to be 7-10MPa, mixing and reacting for 7 minutes while stirring, cooling to room temperature to obtain a rubber sheet, transferring the rubber sheet into a mold of a vulcanizing machine, vulcanizing for 13-16 minutes at the vulcanization temperature of 100 ℃ and 155 ℃, vulcanizing and molding, and cutting to finally finish the processing of the rubber sheet.

Preferably, the temperature of the middle-section mixing is controlled to be 115-122 ℃, the pressure is controlled to be 12MPa, and the mixing reaction is carried out for 10-12 minutes while stirring.

Preferably, the rubber reinforcing agent is a compounding agent which can improve the strength of the rubber product.

Preferably, the plasticizer may be any of phthalate esters, aliphatic dibasic acid esters, fatty acid esters, benzenepolycarboxylic acid esters, polyhydric alcohol esters, epoxy hydrocarbons, and alkylsulfonic acid esters.

Preferably, the accelerator is any one of triethylene diamine, A-1, A-33 and DC-829.

Compared with the prior art, the invention has the following beneficial effects: this processing technology of environment-friendly rubber pad, through carrying out modification treatment to bentonite, bentonite has good suspensibility and dispersibility in aqueous medium, make the coating difficult for the sediment, difficult layering, the colour is even, thereby improve the stability of coating suspension, and it is good to brush the performance moreover, can form the even level and smooth coating of thickness, it is in this point, can add some heavy calcium carbonate in the coating and replace light calcium carbonate, thereby reduce cost, will improve in the bentonite adds the rubber pad production process, can show the outward appearance quality that promotes the rubber pad, and processing technology is simple, has the suitability.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

The processing technology of the environment-friendly rubber pad comprises the following components in parts by weight: 50-60 parts of polysulfide rubber, 2-9 parts of polyisoprene, 5-6 parts of aluminum hydroxide, 5-9 parts of a surface modifier, 4-6 parts of titanium dioxide, 20-25 parts of butadiene, 6-9 parts of modified bentonite, 2-6 parts of an accelerator, 4-8 parts of a plasticizer, 18-25 parts of a reinforcing agent and 2-4 parts of a dispersing agent.

The processing of the rubber pad comprises the following steps:

firstly, mixing polysulfide rubber in an internal mixer for 5-10min, controlling the temperature at 265 ℃ and 300 ℃, and controlling the pressure at 12MPa, wherein the rotating speed of the internal mixer is 130 r/min;

step two, mixing the middle section: sequentially adding polyisoprene, aluminum hydroxide, a surface modifier, titanium dioxide, butadiene and an accelerator into an internal mixer;

polishing bentonite, adding 20-50ml of polishing liquid into bentonite, and polishing the bentonite by making the polishing pad rotating at a specified speed contact with the bentonite, and a defect removing layer forming step of maintaining the state of making the polishing pad rotating at the specified speed contact with the bentonite held on the rotating chuck worktable in the polishing step to prepare modified bentonite;

and step four, adding a plasticizer, a reinforcing agent, a dispersing agent and modified bentonite, controlling the temperature to be 60-75 ℃, controlling the pressure to be 7-10MPa, mixing and reacting for 7 minutes while stirring, cooling to room temperature to obtain a rubber sheet, transferring the rubber sheet into a mold of a vulcanizing machine, vulcanizing for 13-16 minutes at the vulcanization temperature of 100 ℃ and 155 ℃, vulcanizing and molding, and cutting to finally finish the processing of the rubber sheet.

The temperature of the middle-section mixing is controlled to be 115-122 ℃, the pressure is controlled to be 12MPa, and the mixing reaction is carried out for 10-12 minutes while stirring.

The rubber reinforcing agent is a compounding agent capable of improving the strength of rubber products.

As the plasticizer, any of phthalate, aliphatic dibasic acid ester, fatty acid ester, benzenepolycarboxylic acid ester, polyhydric alcohol ester, epoxy hydrocarbon and alkylsulfonic acid ester can be used.

The accelerator is selected from any one of triethylene diamine, A-1, A-33 and DC-829.