Organic peroxides are indispensable tools in the modern rubber industry, particularly for the crosslinking of silicone rubber, enabling the creation of high-performance materials. However, due to their inherent chemical nature, organic peroxides require meticulous attention to safety and proper handling procedures. NINGBO INNO PHARMCHEM CO.,LTD. is committed to providing not only high-quality chemical products but also the necessary knowledge to ensure their safe and effective use. This article outlines the critical safety aspects and handling guidelines for organic peroxides in rubber manufacturing.

Organic peroxides are thermally unstable and can undergo self-accelerating decomposition if not stored and handled correctly. The Self-Accelerating Decomposition Temperature (SADT) is a crucial parameter that dictates the maximum safe storage temperature. For many common silicone rubber crosslinking peroxides, such as those based on 2,5-Dimethyl-2,5-di(tert-butylperoxy)hexane, the SADT is around 80°C. To maintain stability and prevent decomposition, these products should typically be stored at temperatures not exceeding 30°C, away from direct sunlight, heat sources, and ignition sources. Proper ventilation in storage areas is also essential.

Handling organic peroxides requires strict adherence to safety protocols to prevent accidental reactions or decomposition. Key precautions include:

  • Always store peroxides in their original, approved containers, ensuring they are tightly closed.
  • Never weigh out peroxides in the same room where they are stored. Designated, well-ventilated weighing areas are necessary.
  • Avoid contact with incompatible materials. Organic peroxides can react dangerously with reducing agents (like amines), acids, alkalis, and heavy metal compounds (such as accelerators, driers, and metal soaps). Accidental mixing can lead to fires or explosions.
  • Use dedicated, clean equipment when handling peroxides to prevent contamination.
  • Always consult the Material Safety Data Sheet (MSDS) for the specific peroxide being used. The MSDS provides comprehensive information on hazards, safe storage, handling, first aid measures, and emergency procedures.

In the context of silicone rubber processing, ensuring that the peroxide crosslinking agent is evenly dispersed within the compound is vital for consistent curing and optimal performance. However, the mixing process itself must be controlled to avoid excessive heat buildup that could compromise the peroxide's stability. Manufacturers often employ specialized mixing equipment and processes designed to manage temperature effectively during compound preparation.

NINGBO INNO PHARMCHEM CO.,LTD. strongly emphasizes the importance of safety in the chemical industry. We provide our customers with detailed technical data sheets and MSDS for all our products, including our range of silicone rubber crosslinking agents. By understanding and implementing these safety and handling guidelines, manufacturers can harness the benefits of organic peroxides for creating advanced silicone rubber materials while ensuring a safe working environment and maintaining product integrity. Prioritizing safety in the use of chemical auxiliaries is fundamental to responsible manufacturing.