Discussion on flame retardancy of super fiber leather

Discussion on flame retardancy of super fiber leather

At present, super fiber leather has been widely used in many fields, including shoes, bags, sofas, automobile seats, gloves, clothing, soft bags and medical devices, due to its strong wear resistance, acid alkali resistance, hydrolysis resistance, color fastness and texture. At present, it has been widely used in sports, leisure life and industrial products, including shoes, bags, sofas, automobile seats, gloves, clothing, soft bags and medical devices, although the advantages are obvious, But some fields still put forward some special requirements for super fiber leather, such as the automotive interior decoration has put forward high requirements for the flame retardant of super fiber leather.　

What is flame retardancy? As the name suggests, it is to reduce the flammability of materials and slow down the flame spread speed. When the flame is removed, it can self extinguish quickly. The polyurethane on the surface of super fiber leather itself is a kind of flammable material. In addition, a large number of combustible substrates, plasticizers and other organic compounds are used in the manufacturing process of super fiber leather, which makes it easier to burn. In order to achieve the purpose of flame retardation, the combustion cycle composed of combustible, heat source and oxygen must be cut off. This mission is to be completed by flame retardants, and the corresponding flame retardancy methods are: gas phase flame retardancy, condensed phase flame retardancy and heat absorption. For example, once the super fiber skin burns, the flame retardant will decompose and absorb a lot of heat in the combustion process, reduce the temperature of the combustion zone, and dilute the oxygen concentration, so as to reduce the possibility of continuous combustion of the super fiber. Although the flame retardant is powerful, the problem is that it can not only play the role of flame retardant, but also release toxic gas, causing pollution. So the composition of flame retardant has become a difficult problem for scientists. At present, "green" flame retardant is the trend, for example, silicon flame retardant system, which is a non halogen, low smoke, low toxic flame retardant, and silicon resources are very rich, so this kind of flame retardant is very promising. Similarly, boron based and phosphorus based flame retardants have their own remarkable advantages.

However, things have two sides. The more high-end flame retardant, the higher the cost of the super fiber skin with flame retardant performance. Therefore, how to balance the flame retardant performance and cost will be a long-term problem.