Hubei Decon Polyester Co., Ltd

Halogen-free Flame Retardant Polyester Chip for Fire-resistant Fiber Film
Bright Semi-dull or Full-dull Flame-resistant PET Chip for Fire-resistant Yarn BOPET Film

Description: Flame retardant polyester chip is obtained by changing the molecular structure of polyester by linking to phosphorus element. The phosphorous compound exhibits excellent self-extinguishing and flame-retardant properties. It enjoys the characteristic of high strength, hydrolysis resistance, high-temperature resistance, UV-Resistance, and excellent spinnability. We can produce halogen-free flame retardant polyester chips, with phosphorus content from 6500ppm to 15000ppm. And the Limiting Oxygen Index (LOI) can be more than 32 under UL94, or reach VTM-0 (UL-94 METHOD if phosphorus content reaches 7000ppm. When phosphorus content reaches 8500ppm, LOI can be more than 35.
Applications:
It is mainly used for the production of fire-resistant fiber. Such fiber is widely applied in the manufacturing of carpets, curtains, and home and car decoration, which has unique requirements for flame retardant properties.
Processing Way:
Considering the different lowing points between the regular and FR PET chips, there are two ways to produce FR fiber.
1. Using FR PET chips 100%.
The phosphorus content of the chips is around 6500 ppm.
The limit Oxygen Index of the FR fiber is around 30.
2. Using FR PET chips and regular PET chips (or bottle-grade PET chips)
The phosphorus content of the chips can be 14000 ppm.
The radio of FR and regular PET chip is based on the Limit Oxygen Index requirement of the final product.
In this way, we need to use Conjugate Spinning technology.
That's to say, dry the regular and FR PET chips separately.
Compared with Method 2, Method 1 is easier to operate but has a higher production cost.