I.Flame-retardant wall coveringWhat is the material?
Flame-retardant fabric is produced using methyltrimethoxy silane and ammonium polyphosphate (APPⅡ) as raw materials, and the resulting siloxane-coated ammonium polyphosphate synergistically acts as a flame retardant. The optimal phosphorus/silicon ratio is determined through orthogonal experiments. This flame retardant is then combined with water-based polyurethane to create an environmentally friendly flame retardant coating, which is used for flame-retardant finishing of polyester fabrics. As the ratio of the flame retardant to water-based polyurethane increases, the fabric's flame retardancy, strength, and hydrostatic pressure decrease. When the coating application is 20g/m2, the coated polyester fabric exhibits excellent flame retardancy while maintaining good hand feel. Comparative experiments show that, compared to APPⅡ, this flame retardant provides excellent flame retardancy, high strength, and anti-frosting properties.
Flame-retardant fabric can be tested with a lighter; it produces smoke but no open flame, and the smoke production automatically stops within one second after the flame is extinguished, with very little smoke and a cotton-burning odor, which is non-irritating. After international SGS testing, it meets A-level standards; after testing according to Chinese national standards, it meets B1-level standards, which is the highest level of flame retardancy for textiles. The National Fire Building Material Quality Supervision Center has certified and confirmed this. The flame retardant effect of the fabric has reached an international advanced level, making it an ideal decorative alternative.
What are the fire resistance standards for wall coverings?
GB50222—95《Building Interior Decoration Design Fire Protection Specifications》specifies that decorative materials are classified into four categories based on their fire performance: A – non-combustible; B1 – difficult to ignite; B2 – combustible; and B3 – easily ignitable.
According to national fire regulations, fire-retardant fabrics used in large clubs, nightclubs, theaters, and hotels must meet or exceed the B1 fire resistance standard. The B1 standard primarily refers to fabrics that, when subjected to vertical flame tests, must self-extinguish within 5 seconds.
According to national regulations, the maximum fire retardancy level for textiles is B1 grade. B2 standards are slightly less stringent than B1, primarily referring to fabrics that automatically extinguish flames within 5 to 15 seconds when vertically combusted. Fabrics can be selected according to the required fire retardancy standard. For export, fire retardancy products can be tested according to European and American standards (such as BS5867, NFPA701).