90% of wire and cable products on the market use polyvinyl chloride (PVC) as their protective layer. Due to PVC's environmental unfriendliness, thermoplastic polyurethane elastomers are increasingly replacing PVC and chloroprene rubber in the cable industry, becoming the primary choice for the cable sector.

TPU materials boast excellent electrical properties, low-temperature flexibility, wear resistance, and superior weather resistance, significantly enhancing the lifespan and durability of cables. TPU exhibits superior mechanical properties, resistance to chemical solvents, and capabilities to withstand both high and low temperatures, making it an ideal coating for wires and cables. However, non-flame-retardant TPU materials are flammable and can produce liquid droplets during combustion. Unburned droplets can easily ignite surrounding flammable materials, exacerbating fires. Therefore, thermoplastic polyurethane elastomers (TPU) should be widely used in the wire and cable industry, with their flame-retardant properties needing further improvement.

It's widely known that most cables, especially those for special applications, require flame-retardant ratings of v2-v0, with some needing flame-retardant transparency. Flame-retardant cables are categorized into halogen-free and halogenated types. Halogen-free flame-retardant cables are being phased out due to their environmental unfriendliness. These cables have gained increasing recognition from international organizations and users alike.

BASF's 1175aw and 1185aw halogen-free flame-retardant transparent TPU materials are non-flammable, emit low smoke and toxicity during combustion, and can reduce harm to humans. Additionally, they are environmentally friendly, transparent, and represent the mainstream direction for future development. Generally, halogen-free flame-retardant TPU materials are opaque, such as BASF's 1190a FHF, 1198a FHF, 1154d FHF, and 1270d FHF, which are limited in certain specific applications, particularly in color matching. However, compared to opaque flame-retardant TPU materials, the halogen-free flame-retardant transparent TPU offers higher transparency and unparalleled advantages.

In recent years, many polyurethane manufacturers and plastic modification plants at home and abroad have been researching flame-retardant technologies for polyurethane. However, producing halogen-free flame-retardant TPU is quite challenging. After adding flame-retardant agents, the mechanical, surface, and processing properties of TPU are significantly reduced. Currently, the flame-retardant, mechanical, and processing properties of halogen-free flame-retardant TPU cables produced by some domestic manufacturers have yet to achieve a balance.

In response to the market's demands, Dongguan Hongju Plastic Technology Co., Ltd., as a representative supplier of halogen-free flame-retardant TPU materials, is obligated to provide various hardness levels of halogen-free flame-retardant transparent TPU materials to meet users' needs in the environmental protection and flame-retardant TPU elastomer material sectors.