Technical indicators:

During rubber processing, HA-8 is mainly used as a cross-linking agent. It forms a three-dimensional network structure through an addition reaction with the double bonds in the rubber molecular chain, thereby significantly improving the physical properties and chemical stability of rubber products. Specifically, the impact of the addition of Crosslinking agent on the rubber processing process and final products is mainly reflected in the following aspects:

1.Increase the vulcanization rate and cross-linking density: The bismaleimide group in N,N'-m-phenylene dimaleimide can quickly vulcanize with the unsaturated bonds in the rubber, significantly increasing the vulcanization rate of the rubber. At the same time, due to the addition of N,N'-m-phenylene dimaleimide, the number of cross-linking points between rubber molecular chains increases and the cross-linking density increases, which significantly improves the mechanical strength, wear resistance and aging resistance of rubber products.

2. Improve thermal stability and heat resistance: Crosslinking agent-N,N'-m-phenylene dimaleimide itself has excellent heat resistance, and its addition to rubber can significantly improve the thermal stability of rubber products. In high temperature environments, rubber products are not prone to softening or deformation, and can maintain good dimensional stability and mechanical properties.

3. Improve electrical insulation: Crosslinking agent- N,N'-m-phenylene dimaleimide is an excellent electrical insulation material. Adding rubber can significantly improve the electrical insulation properties of rubber products. This has important application value for rubber products that require high electrical insulation properties, such as wire and cable insulation layers, electrical equipment seals, etc.

4. Enhance chemical resistance: The chemical stability of Crosslinking agent- N,N'-m-phenylene dimaleimide enables it to maintain stable performance in a variety of chemical media. Therefore, rubber products added with N,N'-m-phenylene dimaleimide have better chemical corrosion resistance and can maintain stable performance for a long time in harsh environments such as acids and alkalis.

5. Improve processing performance: Adding an appropriate amount of N,N'-m-phenylene dimaleimide can also improve the processing performance of rubber. During the rubber mixing process, HA-8 can form a good dispersion system with rubber and other compounding agents, improve the fluidity and plasticity of rubber, and is beneficial to the molding and processing of rubber products.

It should be noted that the amount of Crosslinking agent-N,N'-m-phenylene dimaleimide should be controlled within a certain range. Too much or too little may have an adverse effect on the performance of rubber products. At the same time, it is also necessary to pay attention to the compatibility and synergy between HA-8 and other compounding agents during rubber processing to ensure the optimal performance of rubber products.

N,N'-m-phenylene dimaleimide has a significant promoting effect during rubber processing and can significantly improve the physical properties, chemical stability and processing performance of rubber products. Its application requires reasonable formula design and process control based on specific product requirements and production conditions.

Dosage: 0.5-1.0 phr as vulcanization retarder. 2-3 phr as a vulcanizer. 1.5 phr to improve compression distortion. 0.5-5.0 phr to increase adhesive strength.

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