A comparison of the differences between polyester flame-retardant filament and ordinary polyester filament!

Flame-retardant polyester filament and ordinary polyester filament have significant differences in multiple key performance indicators, and these differences determine their respective application scenarios and values.

From the perspective of the limiting oxygen index, the limiting oxygen index of common polyester filament is usually between 20% and 22%, which means that in the air, common polyester filament is relatively easy to burn. Through a special preparation process and the addition of flame retardants, the limiting oxygen index of flame-retardant polyester filament can be increased to 28% - 35%. This makes the flame-retardant polyester filament more difficult to ignite when exposed to a fire source, effectively delaying the spread of the fire. Just like in an oxygen-rich environment, ordinary polyester filament is like dry firewood, catching fire at the slightest touch. Flame-retardant polyester filament, like wood that has undergone fireproof treatment, requires a higher temperature and a more abundant fire source to burn, significantly reducing the possibility of fire occurrence.

In terms of combustion performance, once ordinary polyester filament is ignited, the fire will spread rapidly and molten droplets may be produced during the combustion process. These molten droplets not only continue to burn but are also prone to dripping, triggering new fire sources and posing greater fire hazards. For instance, in some fire accidents, when ordinary polyester curtains catch fire, the molten droplets fall onto the furniture, causing the furniture to be ignited as well and the fire to spread rapidly. In contrast, when flame-retardant polyester filament burns, it can quickly form a dense carbonized layer. This carbonized layer acts like a strong armor, isolating oxygen and heat, preventing the further spread of flames, and effectively suppressing the formation of molten droplets, fundamentally reducing the harm of fire.

From a safety perspective, ordinary polyester filament can intensify the fire in a fire, posing a serious threat to the safety of people and property. Flame-retardant polyester filament provides people with reliable safety guarantees and is widely used in places with high fire safety requirements, such as aircraft, automobiles, and construction fields. It can effectively reduce the risk of fire and minimize the loss of life and property. The use of flame-retardant polyester filament in these places is like building a solid firewall for people, which can play an important role in critical moments and protect people's lives and property safety.