CAS NO.：170836-68-7
Product Name: Cyclic phosphonate ester
Structure: 
CAS：170836-68-7
Molecular formula: C24H51O15P5
molecular weight：734.5
Wellchem CU/CT is an effective cyclic phosphonate flame retardant for textiles. Its quality indicators and application effects have reached the advanced level of similar products in the world. This product is produced by Zhejiang Fujin New Materials Co., Ltd. and has obtained a special license for the production of monitored chemicals. This product is non-corrosive, has a high phosphorus content and has excellent water solubility. It can meet the requirements for durable flame retardant finishing of a wide range of fabrics (especially polyester). Wellchem CU can also be used for back coating of PU.
In order to meet the requirements of different processes, according to the active omponents this product is also divided into 100%, 93%, 88%, etc.
|
Items |
Wellchem CU |
Wellchem CT |
|
Active component % |
100 |
93 |
|
Phosphorus content % |
≥20 |
≥20 |
|
PH value |
2.0-3.0 |
2.0-3.0 |
|
Density g/cc@25℃ |
1.2-1.3 |
1.2-1.3 |
|
Viscosity Cps@20℃ |
20,000-50,000 |
2,000-10,000 |
|
Acid number mg KOH/g |
≤30 |
≤20 |
Flame retardant treatment of polyester and polycotton fabrics
|
Wellchem CU/CT |
6-15kg |
|
|
Water |
20kg |
Stir evenly |
|
20% Na2HPO4H or Na2CO3 or ammonia (25%) |
4-8kg |
Adjustment PH：5.5-6.5 |
|
Penetrating agent |
0.05-0.2kg |
Mix evenly |
|
Additional water |
Dilute to total amount 100kg. |
|
Used for durable flame retardant finishing of polyester and polyester-cotton blended fabrics. Wellchem CU can also be used for backcoating polyesters.
125kg plastic drum or 1250kg IBC .Store in dry and ventilated place.
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