The annual Chinaplas exhibition is set to take place in April. At the event, we will be showcasing our red phosphorus flame retardants, antimony trioxide replacement, and halogen-free flame retardants. We invite you to visit the YinSu Flame Retardant Company booth to discuss our products and industry trends.
Red phosphorus flame retardants have long been labeled as "only suitable for internal parts," a perception rooted in the coarse particle size and high addition levels of traditional products, which lead to rough surfaces and poor gloss. Through ultra-fine particle size (2500 mesh) and high-content coating (red phosphorus content >80%) technology, Yinsu's red phosphorus masterbatch achieves UL94 V0 flame retardancy at an addition level of just 3%–5%, while maintaining a smooth, speckle-free surface on the finished product. This makes it suitable for high-gloss appearance parts such as PA, HIPS, and other similar applications.
Flame retardant failure is rarely caused by a single factor, but rather results from the interplay of formulation design, process control, and application environment. This article systematically reviews common causes of flame retardant failure from perspectives such as compatibility between the flame retardant and the polymer matrix, dispersion uniformity, processing methods, and environmental aging. It also proposes countermeasures including optimizing formulation from the source, rational compounding, and precise process control. This piece is intended for professionals in material R&D, formulation design, and production management, helping them understand the underlying logic of flame retardant failure and enhance the systematic and reliable development of flame-retardant materials.