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Method for carrying out radiation vulcanization on rubber material or preparing rubber material

A technology of rubber material and vulcanized rubber, applied in the field of rubber material processing, can solve problems such as complicated operation process, and achieve the effect of improving vulcanization quality, reducing raw material cost and improving ozone resistance

Inactive Publication Date: 2015-06-03
于洪洲
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with sulfur vulcanized rubber, radiation vulcanized rubber has the advantages of ozonation resistance, aging resistance and increased strength. At the same time, the radiation vulcanization process of rubber also has the advantages of environmental protection, energy saving, raw material saving, high production efficiency and convenient control. , but the currently used radiation vulcanization method still has disadvantages such as relatively complicated operation process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1: The radiation vulcanization processing method of tire tread rubber.

[0023] 1. Hybrid radiation vulcanization processing:

[0024] Tread rubber formula: NR70, BR30, carbon black N37574, aromatic oil 30, stearic acid 2; zinc oxide 4; anti-aging agent 40201.5; sulfur 1.5, diethylene glycol di(meth)acrylate 2.

[0025] Using the mixing process, the radiation cross-linking accelerator, sulfur, compounding agent, filler, etc. are evenly dispersed into the rubber matrix, the rubber is discharged, and the tread rubber is extruded.

[0026] Under normal temperature, normal pressure and air atmosphere, the electron accelerator is used to carry out radiation pre-vulcanization treatment on the extruded tread rubber. The radiation dose is 10kGy, which improves the strength of the tread rubber and improves its subsequent combination, molding and re-vulcanization (heating). Structural stability during chemical vulcanization).

[0027] Place the assembled and shaped t...

Embodiment 2

[0033] Example 2: Radiation processing of ozonation-resistant nitrile rubber.

[0034] Formula design: NBR100; carbon black 50; antiaging agent 2; stearic acid 0.5; sulfur 0.5; accelerator 1; diethylene glycol di(meth)acrylate 3.

[0035] Use the internal mixer to complete the mixing process of rubber material, radiation crosslinking accelerator, sulfur, compounding agent, filler, etc., deglue, extrude the product, and then vulcanize in the following three vulcanization methods.

[0036]1. In normal temperature, normal pressure, and air atmosphere, the electron accelerator is used to carry out radiation pre-vulcanization treatment on the formed NBR glue. The radiation dose is 20kGy in total to improve the strength of the NBR glue. The shaped NBR glue is heated and chemically vulcanized, and finally completed. Full vulcanization of NBR rubber.

[0037] 2. Under normal temperature, normal pressure, and air atmosphere, the electron accelerator is used to carry out one or more ra...

Embodiment 3

[0040] Example 3: Radiation processing of heat resistant neoprene.

[0041] Formulation design: CR100; high wear-resistant furnace black 30; activated calcium carbonate 50; plasticizer TCP10; anti-aging agent NBC1; magnesium oxide 2; stearic acid 1; vulcanizing agent + accelerator 5; pentaerythritol tetra(meth)acrylate 10.

[0042] Use the open mill to complete the mixing process of rubber material, radiation crosslinking accelerator, sulfur, compounding agent, filler, etc., deglue, product molding, and then vulcanize according to the following three vulcanization methods.

[0043] 1. In normal temperature, normal pressure, and air atmosphere, first apply γ-rays to irradiate the formed CR glue. The radiation dose is 50kGy in total to improve the strength of the CR glue. Then heat and chemically vulcanize the shaped CR glue, and finally Complete vulcanization.

[0044] 2. Under normal temperature, normal pressure, and air atmosphere, apply gamma rays to perform one or more ra...

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Abstract

The invention relates to a vulcanization processing process of single radiation or mixed radiation rubber. The vulcanization processing process realizes a radiation vulcanization processing method of rubber and comprises the following steps of: firstly mixing a green glue stock, a compounding agent, a filler and a vulcanizing agent, and then mixing in a double-roller open mill or an internal mixer to primarily form an unvulcanized rubber profile; then carrying out one-time or multiple-time radiation vulcanization on the unvulcanized rubber profile to form single radiation vulcanized rubber, or firstly carrying out electron ray or gamma ray radiation prevulcanization and then carrying out heating type chemical vulcanization on the unvulcanized rubber profile to form radiation-chemical mixed vulcanized rubber, or firstly carrying out heating type chemical prevulcanization and then carrying out the electron ray or gamma ray radiation prevulcanization on the unvulcanized rubber profile to form chemical-radiation mixed vulcanized rubber. The vulcanization processing process disclosed by the invention can be used for enhancing the ozonization resistance, cracking resistance, heat resistance and mechanical property of a rubber product and has the advantages of energy conservation, material conservation, vulcanizing time shortening and vulcanizing quality enhancement.

Description

Technical field: [0001] The invention belongs to the technical field of rubber material processing, relates to a single radiation type or mixed radiation type rubber vulcanization processing technology, and realizes the radiation vulcanization processing of rubber. Background technique: [0002] One of the basic processes in the production of rubber products is the vulcanization of rubber. The traditional rubber vulcanization technology is to add a certain proportion of sulfur and accelerators to the rubber compound, and then heat it. This is a vulcanization method commonly used in the rubber industry. This traditional sulfur vulcanization method also has certain defects. For example, the steam heating vulcanization process of tires requires high energy, and it is difficult to control the pre-crosslinking degree of rubber products. The rubber material becomes thinner due to heating, which is prone to Flow, resulting in unevenness of the product, wasting rubber raw materials...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J3/28C08J3/24
Inventor 于洪洲张文良
Owner 于洪洲
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