Uses of fluorine-containing sulfonate salt as flame retardant in polyester PET, and flame retardant composition comprising same

A flame retardant composition and perfluorobutyl sulfonate technology, which are applied in the manufacture of fire retardant filaments, single-component polyester rayon, etc., can solve the problem of large amount of flame retardant and unstable flame retardant performance , flame retardants and flame retardant additives, etc.

Pending Publication Date: 2020-05-12
BEIJING INSTITUTE OF CLOTHING TECHNOLOGY
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  • Summary
  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Chinese patent 02109909.X reports a production method of flame retardant polyester: after the esterification of terephthalic acid and ethylene glycol, add 2-carboxyethyl (phenyl) phosphinic acid and ethylene glycol 1: 1 (molar ratio) The prepared liquid is polycondensed to obtain flame retardant polyester. In this patent, the amount of flame retardant is large, and the flame retardant performance is unstable. Achievable effect
[0005] Chinese patent CN106633999A reports a flame-retardant PET material: it includes the following groups in terms of parts by mass: 50-60 parts of thermoplastic elastomer, 25-40 parts of polyethylene terephthalate, 2.3-4.1 parts of phenyl silicone oil 12-18 parts of fluorine rubber, 8-15 parts of nano-titanium nitride, 3.5-6.8 parts of stearic acid, 4-10 parts of calcium carbonate, 1.8-3.9 parts of active zinc oxide, 5-12 parts of aluminum hydroxide, using After the above formula, the patented flam

Method used

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  • Uses of fluorine-containing sulfonate salt as flame retardant in polyester PET, and flame retardant composition comprising same
  • Uses of fluorine-containing sulfonate salt as flame retardant in polyester PET, and flame retardant composition comprising same
  • Uses of fluorine-containing sulfonate salt as flame retardant in polyester PET, and flame retardant composition comprising same

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preparation example Construction

[0045] In the present invention, the preparation method of the flame retardant composition is not particularly limited, and the preparation method of the flame retardant composition includes the step of mixing the fluorine- and sulfur-containing compound and DOPO flame retardant.

[0046] In a preferred embodiment, the preparation method includes mixing the fluorine- and sulfur-containing compound with a DOPO flame retardant in a certain mass ratio; in a further preferred embodiment, the DOPO flame retardant After the agent is esterified with the polymer monomer, it is mixed with the compound containing fluorine and sulfur, and then the polymerization reaction is carried out.

[0047] According to a second aspect of the present invention, there is provided the use of a fluorine- and sulfur-containing compound as a PET flame retardant, and the fluorine- and sulfur-containing compound is an organic compound containing both a fluorine atom and a sulfur atom;

[0048] Preferably, ...

Embodiment 1

[0080] Add terephthalic acid TPA (700g), ethylene glycol (315g), and DDP (58.37g) into the reaction kettle, stir and mix well;

[0081] Heat to 260°C to carry out esterification reaction (control the reaction pressure at 330kpa, when the water output reaches one-third of the theoretical water output, slightly open the valve to start reducing the pressure until it reaches normal pressure, and the reaction time is based on the theoretical water output reaching 150 ml Accurate, the time is about 2-2.5h);

[0082] Then add 4g of potassium perfluorobutane sulfonate to the solution where the esterification is completed, fill it with nitrogen protection, and continue to stir until the polymerization temperature finally reaches 280°C-285°C, the polymerization pressure is less than 100pa, and the polymerization time is 2-3h. The required polymer molecular weight is discharged, and after the reaction is completed, the flame-retardant PET chips are obtained through injection tape and pel...

Embodiment 2

[0084] The same as the method of Example 1, the difference is that the DDP used is 71.84g, to obtain flame-retardant PET.

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Abstract

The invention provides applications of fluorine-containing sulfonate as a flame retardant in polyester PET, and a flame-retardant composition containing the fluorine-containing sulfonate. According tothe invention, a compound containing fluorine and sulfur (preferably perfluorosulfonate) and a DOPO flame retardant take a synergistic effect on fire retardation of PET; and the flame-retardant composition comprises a compound containing fluorine and sulfur and a DOPO flame retardant, can be used as a PET flame retardant, and enables flame-retardant PET to have excellent molten drop resistance and excellent flame retardance under the condition of maintaining good spinning capability.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to the use of perfluorosulfonate as a flame retardant in polyester PET and a flame retardant composition containing it. Background technique [0002] Polyethylene terephthalate (PET) is a polymer compound obtained by esterification and polycondensation of terephthalic acid (PTA) and ethylene glycol (EG). [0003] PET polyester fiber is widely used in many fields such as clothing, cloth, toy stuffing, bedding, etc. However, due to the flammability of polyester fiber itself, once a fire occurs, it will bring great damage to life and property, so poly The research on the flame retardancy of ester fiber has attracted worldwide attention. Moreover, the melt drips during the burning process, which will cause the fire spread of the molten fiber or cause burn damage. Flame retardants are added to the polymer material PET to enhance the flame retardant properties of the polymer. [0004] ...

Claims

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Application Information

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IPC IPC(8): C08G63/692C08K5/42D01F6/92D01F1/07
CPCC08G63/6926C08K5/42D01F1/07D01F6/92
Inventor 王锐董振峰高建伟魏丽菲朱志国
Owner BEIJING INSTITUTE OF CLOTHING TECHNOLOGY
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