Shandong Huawei Biochemistry Co., Ltd

Products

	2-carboxyl Ethyl (Phenyl) Phosphinic Acid

2-carboxyl Ethyl (Phenyl) Phosphinic Acid

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The usage of product:
This product and PTA, the EG together to copolymerize and produce the flame retardant slices, it can blend with glycol under appropriate environment until 80% etherified. Counter-fire polyester slice's polymerization environment is the same to normal slice.
The phosphor fastens to flame retarding terylene slices has no poisonous feature, no corrosion, and its counter-fire capacity long and steady. When it's copolymerized with PTA and EG, the quantity of using is 2.5%-4.5%, that is 3500-6500ppm,the extreme oxygen amount after being spinned is 30-36.The heat resolution temperature of the slices made from it is 410°C,with good stability under heat and easy to spin ,so it can produce all kinds of flame retarding short fibers and long silk. Different amount of addition will affect counter-fire polyester slice's counter-fire capacity, the advised addition amount is 4-5.5%,The cloth's oxygen index will be as high as 32%.Dying should conducted under appropriate environment to guarantee the products' best permanent counter-fire capacities.

Item Index
Appearance White Crystal
Melting Point ≥158°C
Acid Value 522.0±4.0
Water Content ≤0.2
Phosphorus Content 14.0±0.5
Iron Content ≤0.02