阅读说明：本技术 橡胶坯体及其制备方法 (Rubber blank and preparation method thereof ) 是由 陆雪龙 胡银 苏福男 于 2019-09-16 设计创作，主要内容包括：本发明公开了一种耐腐蚀橡及其制备方法,所述制备方法包括：将天然橡胶、丁腈橡胶、氟硅橡胶、吡咯烷酮羧酸钾、云母粉、氢氧化铝、氧化锌、甘油、三乙醇胺、石蜡、硬脂酸镁、防老剂MB、聚氨酯、硫化促进剂和补强填料混合,球磨处理后得到混合物M；将混合物M进行塑炼,等到塑炼胶N；将塑炼胶N进行混炼、硫化后得到橡胶坯体。(The invention discloses a corrosion-resistant rubber and a preparation method thereof, wherein the preparation method comprises the following steps: mixing natural rubber, nitrile rubber, fluorosilicone rubber, potassium pyrrolidone carboxylate, mica powder, aluminum hydroxide, zinc oxide, glycerol, triethanolamine, paraffin, magnesium stearate, an anti-aging agent MB, polyurethane, a vulcanization accelerator and a reinforcing filler, and performing ball milling treatment to obtain a mixture M; plasticating the mixture M until plasticated rubber N; and mixing and vulcanizing the plasticated rubber N to obtain a rubber blank.)

1. A preparation method of a rubber blank is characterized by comprising the following steps:

(1) mixing natural rubber, nitrile rubber, fluorosilicone rubber, potassium pyrrolidone carboxylate, mica powder, aluminum hydroxide, zinc oxide, glycerol, triethanolamine, paraffin, magnesium stearate, an anti-aging agent MB, polyurethane, a vulcanization accelerator and a reinforcing filler, and performing ball milling treatment to obtain a mixture M;

(2) plasticating the mixture M until plasticated rubber N;

(3) and mixing and vulcanizing the plasticated rubber N to obtain a rubber blank.

2. The preparation method according to claim 1, wherein the rubber composition comprises 15-25 parts of natural rubber, 5-10 parts of nitrile rubber, 15-30 parts of fluorosilicone rubber, 2-7 parts of pyrrolidone potassium carboxylate, 4-7 parts of mica powder, 1-5 parts of aluminum hydroxide, 1-5 parts of zinc oxide, 3-6 parts of glycerol, 4-7 parts of triethanolamine, 3-4 parts of paraffin, 1-2 parts of magnesium stearate, 1-3 parts of an anti-aging agent MB1, 1-3 parts of polyurethane, 2-5 parts of a vulcanization accelerator and 7-10 parts of a reinforcing filler.

3. The preparation method according to claim 1, wherein the conditions of the ball milling treatment include: the temperature is 50-70 ℃, the rotating speed is 300-350rpm, and the time is 10-15 min.

4. The method of claim 1, wherein the conditions of mastication include: the temperature is 70-90 deg.C, and the time is 2-5 min.

5. The production method according to claim 1, wherein the kneading includes a one-stage kneading and a two-stage kneading which are performed in this order;

The mixing conditions of the first stage comprise: the temperature is 60-80 ℃, and the time is 3-7 h;

The conditions for the two-stage mixing include: the temperature is 110-120 ℃, and the time is 30-60 min.

6. The production method according to claim 1, wherein the vulcanization conditions include: the temperature is 150 ℃ and 210 ℃, the pressure is 6-8MPa, and the time is 10-15 min.

7. The method of claim 1, wherein the reinforcing filler is glass fiber or nano calcium carbonate.

8. The production method according to claim 1, wherein the vulcanization accelerator is one or more of zinc oxide, stearic acid, and polyethylene glycol 2000.

9. A rubber body produced by the production method according to any one of claims 1 to 8.

Technical Field

The invention relates to the field of rubber, in particular to a rubber blank and a preparation method thereof.

Background

The rubber is a high-elasticity polymer material with reversible deformation, is rich in elasticity at room temperature, can generate large deformation under the action of small external force, and can recover the original shape after the external force is removed. Early rubbers were latex from plants such as hevea brasiliensis, etc. processed to make elastic, insulative, impermeable to water and air. Is a high-elasticity polymer compound. The rubber is divided into natural rubber and synthetic rubber. The natural rubber is prepared by extracting colloid from plants such as rubber tree and rubber grass and processing; synthetic rubbers are obtained by polymerizing various monomers, and rubber products are widely used in industry or in various aspects of life. In the chemical manufacturing field, rubber pipelines for chemical raw material transportation need to have the rubber goods of corrosion resistance to improve the life of goods, the corrosion resistance of traditional rubber goods is not enough, leads to the life-span not enough in being applied to perishable environment.

Disclosure of Invention

The invention aims to provide a rubber blank and a preparation method thereof, which solve the problem that the traditional rubber product has insufficient corrosion resistance and insufficient service life when being applied to a corrosive environment.

in order to achieve the above object, the present invention provides a method for producing a rubber base, comprising:

(1) Mixing natural rubber, nitrile rubber, fluorosilicone rubber, potassium pyrrolidone carboxylate, mica powder, aluminum hydroxide, zinc oxide, glycerol, triethanolamine, paraffin, magnesium stearate, an anti-aging agent MB, polyurethane, a vulcanization accelerator and a reinforcing filler, and performing ball milling treatment to obtain a mixture M;

(2) plasticating the mixture M until plasticated rubber N;

(3) And mixing and vulcanizing the plasticated rubber N to obtain a rubber blank.

The invention also provides a rubber blank prepared by the preparation method.

Through the technical scheme, the invention provides a rubber blank and a preparation method thereof, wherein the preparation method comprises the following steps: mixing natural rubber, nitrile rubber, fluorosilicone rubber, potassium pyrrolidone carboxylate, mica powder, aluminum hydroxide, zinc oxide, glycerol, triethanolamine, paraffin, magnesium stearate, an anti-aging agent MB, polyurethane, a vulcanization accelerator and a reinforcing filler, and performing ball milling treatment to obtain a mixture M; plasticating the mixture M until plasticated rubber N; mixing and vulcanizing the plasticated rubber N to obtain a rubber blank; through the synergistic effect of the raw materials, the prepared rubber has excellent corrosion resistance, and meanwhile, the method provided by the invention is simple and the raw materials are easy to obtain.

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 a rubber blank, which comprises the following steps:

(1) Mixing natural rubber, nitrile rubber, fluorosilicone rubber, potassium pyrrolidone carboxylate, mica powder, aluminum hydroxide, zinc oxide, glycerol, triethanolamine, paraffin, magnesium stearate, an anti-aging agent MB, polyurethane, a vulcanization accelerator and a reinforcing filler, and performing ball milling treatment to obtain a mixture M;

(2) Plasticating the mixture M until plasticated rubber N;

(3) and mixing and vulcanizing the plasticated rubber N to obtain a rubber blank.

In a preferred embodiment of the invention, in order to further improve the corrosion resistance of the prepared rubber, 15-25 parts of natural rubber, 5-10 parts of nitrile rubber, 15-30 parts of fluorosilicone rubber, 2-7 parts of pyrrolidone carboxylic acid potassium, 4-7 parts of mica powder, 1-5 parts of aluminum hydroxide, 1-5 parts of zinc oxide, 3-6 parts of glycerol, 4-7 parts of triethanolamine, 3-4 parts of paraffin, 1-2 parts of magnesium stearate, 4-3 parts of an anti-aging agent MB1, 1-3 parts of polyurethane, 2-5 parts of a vulcanization accelerator and 7-10 parts of a reinforcing filler.

In a preferred embodiment of the present invention, in order to further improve the corrosion resistance of the rubber obtained, the ball milling treatment conditions include: the temperature is 50-70 ℃, the rotating speed is 300-350rpm, and the time is 10-15 min.

In a preferred embodiment of the present invention, in order to further improve the corrosion resistance of the rubber produced, the conditions of mastication include: the temperature is 70-90 deg.C, and the time is 2-5 min.

in a preferred embodiment of the present invention, in order to further improve the corrosion resistance of the rubber obtained, the kneading comprises a first-stage kneading and a second-stage kneading which are carried out in this order;

The mixing conditions of the first stage comprise: the temperature is 60-80 ℃, and the time is 3-7 h;

The conditions for the two-stage mixing include: the temperature is 110-120 ℃, and the time is 30-60 min.

in a preferred embodiment of the present invention, in order to further improve the corrosion resistance of the rubber obtained, the vulcanization conditions include: the temperature is 150 ℃ and 210 ℃, the pressure is 6-8MPa, and the time is 10-15 min.

In a preferred embodiment of the invention, the reinforcing filler is glass fibers or nano calcium carbonate in order to further improve the corrosion resistance of the rubber produced.

In a preferred embodiment of the present invention, in order to further improve the corrosion resistance of the rubber obtained, the vulcanization accelerator is one or more of zinc oxide, stearic acid and polyethylene glycol 2000.

The invention also provides a rubber blank prepared by the preparation method.

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