Flame-retardant thermoplastic polyurethane composite material

A technology of thermoplastic polyurethane and composite materials, which is applied in the field of flame retardant materials, can solve the problems of low flame retardant efficiency of composite materials, reduced heat release and smoke release, and achieves reduced heat release rate, good flame retardant effect, and reduced Effect of total heat release

Active Publication Date: 2021-07-09
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the microcapsule ammonium polyphosphate has strong compatibility with the polymer matrix, if the microcapsule ammonium polyphosphate is added alone, the flame retardant efficiency of the composite material is not high, and the heat release and smoke release need to be further reduced

Method used

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  • Flame-retardant thermoplastic polyurethane composite material
  • Flame-retardant thermoplastic polyurethane composite material
  • Flame-retardant thermoplastic polyurethane composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A flame-retardant thermoplastic polyurethane composite material is prepared according to the following steps:

[0031] (1) Take 1.76 parts of copper acetate, 9 parts of melamine and 100 ml of deionized water in a 250 ml three-neck round bottom flask, install a mechanical stirrer, and stir ultrasonically at room temperature for 30 minutes.

[0032] (2) Add 20 ml of phytic acid dropwise into the above flask, and continue ultrasonic stirring at room temperature for 2 hours.

[0033] (3) The mixture was centrifuged once, washed three times with deionized water and once with absolute ethanol, and dried in vacuum at 60 degrees Celsius for 24 hours to obtain the "melamine-phytic acid-copper ion" supramolecular network flame retardant.

[0034] (4) Take 54 parts of thermoplastic polyurethane in a double-roll mill, melt it completely at 185 degrees Celsius, add 4 parts of silicon-coated ammonium polyphosphate, and 2 parts of "melamine-phytic acid-copper ion" supramolecular netwo...

Embodiment 2

[0037] A flame-retardant thermoplastic polyurethane composite material is prepared according to the following steps:

[0038] (1) Take 1.76 parts of copper acetate, 9 parts of melamine and 100 ml of deionized water in a 250 ml three-neck round bottom flask, install a mechanical stirrer, and stir ultrasonically at room temperature for 30 minutes.

[0039] (2) Add 20 ml of phytic acid dropwise into the above flask, and continue ultrasonic stirring at room temperature for 2 hours.

[0040] (3) The mixture was centrifuged once, washed three times with deionized water and once with absolute ethanol, and dried in vacuum at 60 degrees Celsius for 24 hours to obtain the "melamine-phytic acid-copper ion" supramolecular network flame retardant.

[0041] (4) Take 54 parts of thermoplastic polyurethane in a double-roller mill, melt it completely at 185 degrees Celsius, add 4.5 parts of silicon-coated ammonium polyphosphate, and 1.5 parts of "melamine-phytic acid-copper ion" supramolecular...

Embodiment 3

[0044] A flame-retardant thermoplastic polyurethane composite material is prepared according to the following steps:

[0045] (1) Take 1.76 parts of copper acetate, 9 parts of melamine and 100 ml of deionized water in a 250 ml three-neck round bottom flask, install a mechanical stirrer, and stir ultrasonically at room temperature for 30 minutes.

[0046] (2) Add 20 ml of phytic acid dropwise into the above flask, and continue ultrasonic stirring at room temperature for 2 hours.

[0047] (3) The mixture was centrifuged once, washed three times with deionized water and once with absolute ethanol, and dried in vacuum at 60 degrees Celsius for 24 hours to obtain the "melamine-phytic acid-copper ion" supramolecular network flame retardant.

[0048] (4) Take 54 parts of thermoplastic polyurethane in a double-roller mill, melt it completely at 185 degrees Celsius, add 4.8 parts of silicon-coated ammonium polyphosphate, and 1.2 parts of "melamine-phytic acid-copper ion" supramolecular n...

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Abstract

The invention belongs to the technical field of flame-retardant materials, and particularly relates to preparation of a supramolecular network flame retardant and compounding of the supramolecular network flame retardant and other flame retardants in thermoplastic polyurethane. The flame-retardant thermoplastic polyurethane elastomer material is prepared from the following raw materials in parts by mass: 54.0 to 60.0 parts of thermoplastic polyurethane elastomer, 4.0 to 6.0 parts of silicon-coated ammonium polyphosphate flame retardant and 0.0 to 2.0 parts of melamine-phytic acid-copper ion supramolecular network flame retardant. The supramolecular network flame retardant prepared by the invention can obviously reduce the flammability of thermoplastic polyurethane and reduce the generation and release of toxic flue gas in the combustion process of the thermoplastic polyurethane, and has great significance for personal safety and environmental protection.

Description

technical field [0001] The invention belongs to the field of flame retardant materials, and in particular relates to the preparation of a supramolecular network flame retardant, which is compounded with other flame retardants in thermoplastic polyurethane. Background technique [0002] Thermoplastic polyurethane is one of the most versatile engineering thermoplastics with elastic properties. In general, thermoplastic polyurethane has excellent properties such as high modulus, high strength, high elasticity, high toughness, corrosion resistance, hydrolysis resistance, heat resistance, wear resistance, good insulation, and good thermal stability. Due to its good physical and chemical properties, this material is widely used in many industrial fields, such as machinery and vehicles, civil construction and transportation, sports and leisure, etc. However, due to the limitation of its own chemical structure, thermoplastic polyurethane has a low limiting oxygen index, is extremel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L75/04C08L87/00C08K3/32C08K9/10
CPCC08L75/04C08L2201/02C08K2003/323C08L87/00C08K3/32C08K9/10
Inventor 施永乾陈可欣
Owner FUZHOU UNIV
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