ADC blowing agent, also known as Azodicarbonamide blowing agent, is a chemical compound commonly used in the plastics industry. It is primarily used as a foaming agent to produce cellular structures in various polymer materials, including plastics, rubber, and synthetic leather.
Here are some key points about ADC blowing agent:
1. Function: Blowing Agent ADC decomposes at certain temperatures, releasing gases such as nitrogen, carbon dioxide, and ammonia. This gas evolution creates a foaming effect, resulting in the formation of bubbles or cells within the polymer material. These cells enhance the material's physical properties, such as insulation, thermal stability, and soundproofing capabilities.
2. Applications: ADC blowing agent is widely used in the production of foam-based products, including insulation materials, shoe soles, yoga mats, automotive interiors, gaskets, and expanded rubber. It allows manufacturers to create lightweight, flexible, and cost-effective products.
3. Safety concerns: While ADC blowing agent is commonly used in the industry, there have been concerns regarding its safety. When heated to high temperatures, ADC can produce by-products, including semicarbazide (SEM) and urethane, which have been linked to potential health risks. As a result, some countries have implemented regulations or guidelines limiting the use or concentration of ADC blowing agent in certain applications, such as food contact materials.