Preparation process of ultralow-temperature-resistant mixing material

Abstract

The invention relates to a preparation process of an ultralow-temperature-resistant mixing material. A rubber compound, which is resistant to minus 50 DEG C and has an excellent processing property, is suitable for mold pressing vulcanization molding. Special buna-N rubber is adopted as a base material, carbon black N330 is taken as a filler, reinforced resin, wax-shaped polyethylene and HA-8 are taken as modifying agents, DOS is taken as a softening agent, and meanwhile an appropriate amount of anti-aging agents 4010NA and MB, active agent zinc oxide and stearic acid as well as vulcanizating agents DCP, DTDM, CZ, DM and TE are taken as ingredients, so that the ultralow-temperature-resistant mixing material is formed through compounding, smelting and cooking. The ultralow-temperature-resistant mixing material has the performance advantages and practicability that firstly, a sealing element produced by using the ultralow-temperature-resistant mixing material can meet the sealing performance requirements of coal mine hydraulic support upright columns and jacks and is normally used under the condition of minus 50 DEG C; secondly, the ultralow-temperature-resistant mixing material is good in processability in production and higher in product percent of pass, and the production cost is relatively reduced; thirdly, the performance of the ultralow-temperature-resistant mixing material accord with the HG / T 3326-2007 standard.

Description

1. Technical field

[0001] The invention relates to a preparation process of ultra-low temperature resistant mixing rubber material. 2. Background technology

[0002] With the development of the coal industry and technological progress, the sealing requirements for coal mine hydraulic support columns and jacks are getting higher and higher, and various physical performance requirements for materials have appeared one after another; such as high strength, high rebound, ultra-low temperature and other requirements . At present, the seal materials in China are generally used under normal temperature conditions, and cannot be used in severe cold regions. Therefore, an ultra-low temperature-resistant rubber compound suitable for use in severe cold areas has been developed. At the same time, the mixing process of rubber formula and the corresponding vulcanization production process are designed. 3. The content of the invention

[0003] The purpose of the present invention is t...

Examples

Embodiment approach

[0042] The best formula of the present invention's ultra-low temperature resistant mixing compound is as follows:

[0043]

[0044] The preparation process of a kind of ultra-low temperature resistant mixing compound of the present invention is as follows:

[0045] (1) Ingredients:

[0046] Aniseed materials: rubber main material, carbon black, low temperature softener,

[0047] Small materials; anti-aging agent, vulcanizing agent, accelerator, active agent, processing aid.

[0048] (2) Mixing process:

[0049] Add the main rubber material, filling reinforcing agent, and low-temperature softener to the mixing chamber of the internal mixer in batches, pressurize the top bolt for 100-200 seconds, lift the top bolt, and add small materials; then pressurize for 200-500 seconds Seconds, lift the top bolt and then pressurize for 30-90 seconds before discharging; the rubber material falls into the open mill and wraps the roll, rams for 3-5 minutes, then unloads, supercools wate...

1. Technical field

[0001] The invention relates to a preparation process of ultra-low temperature resistant mixing rubber material. 2. Background technology

[0002] With the development of the coal industry and technological progress, the sealing requirements for coal mine hydraulic support columns and jacks are getting higher and higher, and various physical performance requirements for materials have appeared one after another; such as high strength, high rebound, ultra-low temperature and other requirements . At present, the seal materials in China are generally used under normal temperature conditions, and cannot be used in severe cold regions. Therefore, an ultra-low temperature-resistant rubber compound suitable for use in severe cold areas has been developed. At the same time, the mixing process of rubber formula and the corresponding vulcanization production process are designed. 3. The content of the invention

[0003] The purpose of the present invention is t...

Examples

Embodiment approach

[0042] The best formula of the present invention's ultra-low temperature resistant mixing compound is as follows:

[0043]

[0044] The preparation process of a kind of ultra-low temperature resistant mixing compound of the present invention is as follows:

[0045] (1) Ingredients:

[0046] Aniseed materials: rubber main material, carbon black, low temperature softener,

[0047] Small materials; anti-aging agent, vulcanizing agent, accelerator, active agent, processing aid.

[0048] (2) Mixing process:

[0049] Add the main rubber material, filling reinforcing agent, and low-temperature softener to the mixing chamber of the internal mixer in batches, pressurize the top bolt for 100-200 seconds, lift the top bolt, and add small materials; then pressurize for 200-500 seconds Seconds, lift the top bolt and then pressurize for 30-90 seconds before discharging; the rubber material falls into the open mill and wraps the roll, rams for 3-5 minutes, then unloads, supercools wate...

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