阅读说明：本技术 一种新型复合丁腈橡胶的制造工艺 (Novel composite nitrile rubber manufacturing process ) 是由 *** 于 2019-09-24 设计创作，主要内容包括：本发明公开了一种新型复合丁腈橡胶的制造工艺,该方法以丁二烯、丙烯腈为原材料,以乙烯、丙烯为绝缘材料,以异戊二烯为补强剂,以3,3,5,7,7-五甲基-1,2,4-三环氧己烷为硫化剂制成复合丁腈橡胶；使制作出的复合丁腈橡胶具有较好的绝缘性能,其耐低温性能和弹性也得到了较好的改善,具有极佳的实用性。(The invention discloses a process for preparing novel composite nitrile rubber, which comprises the steps of preparing the composite nitrile rubber by using butadiene and acrylonitrile as raw materials, ethylene and propylene as insulating materials, isoprene as a reinforcing agent and 3,3,5,7, 7-pentamethyl-1, 2, 4-trioxyhexane as a vulcanizing agent; the prepared composite nitrile rubber has better insulating property, better low-temperature resistance and elasticity and excellent practicability.)

1. The manufacturing process of the novel composite nitrile rubber is characterized by comprising the following steps:

(1) weighing 40-50 parts of butadiene, 30-50 parts of acrylonitrile, 30-40 parts of isoprene, 5-10 parts of ethylene and 5-10 parts of propylene according to the weight parts;

(2) mixing the raw materials prepared in the step (1), putting the mixture into a condensation kettle, heating the mixture to 350 ℃, and stirring the mixture continuously until the raw materials are condensed into mucilage;

(3) continuously introducing dissolved gas into the mucilage obtained in the step (2), and continuously stirring to fully dissolve the mucilage;

(4) putting the fully dissolved mucilage obtained in the step (3) into a vulcanizing tank for vulcanization, and continuously introducing hydrogen sulfide gas for assistance in the vulcanization process;

(5) putting the vulcanized rubber cement obtained in the step (4) into a sealed container filled with inert gas, and vacuumizing by using a vacuum machine to remove bubbles in the rubber cement;

(6) pouring the mucilage with bubbles removed in the step (5) into a cooling pool for cooling;

(7) and (4) putting the cooled composite nitrile rubber obtained in the step (6) into a leaching chamber, and repeatedly leaching for 5 minutes by using leaching solution.

(8) Putting the washed composite nitrile rubber in the step (7) into a drying oven at 100 ℃ for drying, and finishing the manufacture;

2. the process for preparing the novel composite nitrile rubber according to claim 1, wherein the dissolved gas in the step (3) is a mixture of 10-20 parts of cyclopropane and 5-10 parts of cyclobutane.

3. The process for preparing the novel composite nitrile rubber according to claim 2, wherein the vulcanizing agent in the vulcanizing tank in the step (4) is 3,3,5,7, 7-pentamethyl-1, 2, 4-trioxane.

4. The process for manufacturing a novel compounded nitrile rubber according to claim 2 or 3, wherein the leacheate in the step (7) is a 3% hydrogen peroxide solution.

Technical Field

The invention relates to the field of a manufacturing method of a rubber material, in particular to a manufacturing process of novel composite nitrile rubber.

Background

In daily life and industrial production, nitrile rubber is an extremely important rubber material and is widely used for preparing various oil-resistant rubber products, various oil-resistant gaskets, sleeves, flexible packages, flexible rubber tubes, printing and dyeing rubber rollers, cable rubber materials and the like.

Disclosure of Invention

Aiming at the problems in the prior art, the invention aims to provide a novel composite nitrile rubber manufacturing process, and the composite nitrile rubber manufactured by the method has better low-temperature resistance, insulation performance and elasticity.

In order to achieve the purpose, the invention adopts the technical scheme that: the manufacturing process of the novel composite nitrile rubber is characterized by comprising the following steps:

(1) weighing 40-50 parts of butadiene, 30-50 parts of acrylonitrile, 30-40 parts of isoprene, 5-10 parts of ethylene and 5-10 parts of propylene according to the weight parts;

(2) mixing the raw materials prepared in the step (1), putting the mixture into a condensation kettle, heating the mixture to 350 ℃, and stirring the mixture continuously until the raw materials are condensed into mucilage;

(3) continuously introducing dissolved gas into the mucilage obtained in the step (2), and continuously stirring to fully dissolve the mucilage;

(4) putting the fully dissolved mucilage obtained in the step (3) into a vulcanizing tank for vulcanization, and continuously introducing hydrogen sulfide gas for assistance in the vulcanization process;

(5) putting the vulcanized rubber cement obtained in the step (4) into a sealed container filled with inert gas, and vacuumizing by using a vacuum machine to remove bubbles in the rubber cement;

(6) pouring the mucilage with bubbles removed in the step (5) into a cooling pool for cooling;

(7) putting the cooled composite nitrile rubber in the step (6) into a leaching chamber, and repeatedly leaching for 5 minutes by using leaching solution;

(8) putting the washed composite nitrile rubber in the step (7) into a drying oven at 100 ℃ for drying, and finishing the manufacture;

further, the dissolved gas in the step (3) is formed by mixing 10-20 parts of cyclopropane and 5-10 parts of cyclobutane.

Further, the vulcanizing agent in the high-temperature liquid bath in the step (4) is 3,3,5,7, 7-pentamethyl-1, 2, 4-trioxane.

Further, the eluent in the step (7) is a 3% hydrogen peroxide solution.

In the preparation process of the rubber, the ethylene and the propylene are added into the ingredients to serve as insulating materials, and the isoprene is added to serve as a reinforcing agent, so that the prepared composite nitrile rubber has good insulating property, the low-temperature resistance and the elasticity of the composite nitrile rubber are also well improved, and the composite nitrile rubber has excellent practicability.

Drawings

FIG. 1 is a process flow diagram of the present invention;

Detailed Description

The present invention will be described in further detail with reference to examples.