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  • Flame retardant polyester chips FRPET

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Flame retardant polyester chips FRPET

It is phosphorous flame retardant polyester.From the molecular chain mechanism,the flame retardant polyester can be divided into main chain type and side chain type. According to the content of phosphorus, we have series of products from 5000ppm to 15000ppm to meet custome requirements.From the titanium content, we have products of bright, semi-dull and dull. From the viscosity,we have products of ordinary and high viscosity.

Message

Product Features：


This is permanent phosphorous flame retardant polyester of high-performance produced according to the formulation and process independently developed by our company. It perfectly solves the shortcomings of other phosphorous flame retardant polyester products, with the advantages of high strength, resistance to hydrolysis, high temperature and UV, as well as its excellent spinnability.


The main purpose:

The fibers are mainly used to produce carpets, curtains, home or car decorations which need special requirements for flame retardant.


Main quality index：

Quality index of FRPET


Serial number

Item

Unit

Value

1

Intrinsic viscosity

dl/g

M1±0.015

2

Melting point

℃

≥256

3

Carboxyl end groups

mol/t

≤35

4

Color value（b）


M2±2.0

5

moisture

%

≤0.4

6

Agglomerate (≥10um)

Pcs/mg

≤1.0

7

Diethylene glycol

%

≤1.8±0.2

8

Phosphorus content

ppm

6500

Note：


1.M1 in the table is the median value of intrinsic viscosity. in general M1=0.680 or it should be determined by both buyer and seller.


2.M2 in the table is the median value of color b. in general M2=2 or it should be determined by both buyer and seller.


3.The phosphorus content is 6500ppm or it should be determined by both buyer and seller.


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