Flame-retardant antistatic TPU composite material

A technology of flame retardant, antistatic and composite materials, which is applied in the field of plastic processing, can solve problems such as acceleration, and achieve the effect of improving flame retardant performance, maintaining original performance, and high antistatic performance

Active Publication Date: 2022-08-02
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It has been confirmed that boron-based flame retardants have the effect of accelerating the carbonization of the outer combustion layer when the polymer burns, and there are few relevant studies on the synergistic flame retardancy of B, N, and P in the flame retardants on the market

Method used

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  • Flame-retardant antistatic TPU composite material
  • Flame-retardant antistatic TPU composite material
  • Flame-retardant antistatic TPU composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] 1) Dissolve 1 part by weight of expandable graphene oxide into 90 parts by weight of DMF, transfer it to a rotary evaporator after ultrasonication for 30 minutes, heat it to 85°C, slowly add 90 parts by weight of TPU particles, and rotate to dissolve; Slowly add 4 parts by weight of ammonium polyphosphate and 5 parts by weight of triphenylboroxane, and react for 2h;

[0026] 2) Remove the remaining DMF from the reaction by rotary evaporation, transfer it to a twin-screw extruder, adjust the temperature of each zone to 180°C-200°C, and rotate the speed to 400-600r / min. Electrostatic TPU composite.

Embodiment 2

[0028] 1) Dissolve 2 parts by weight of expandable graphene oxide into 90 parts by weight of DMF, transfer it to a rotary evaporator after sonicating for 30 minutes, heat it to 85°C, slowly add 88 parts by weight of TPU particles, and rotate to dissolve; Slowly add 4 parts by weight of ammonium polyphosphate and 6 parts by weight of triphenylboroxane, and react for 2h;

[0029] 2) Remove the remaining DMF from the reaction by rotary evaporation, transfer it to a twin-screw extruder, adjust the temperature of each zone to 180°C-200°C, and rotate the speed to 400-600r / min. Electrostatic TPU composite.

Embodiment 3

[0031] 1) Dissolve 3 parts by weight of expandable graphene oxide into 90 parts by weight of DMF, transfer it to a rotary evaporator after sonicating for 30 minutes, heat it to 85°C, slowly add 85 parts by weight of TPU particles, and rotate to dissolve; Slowly add 5 parts by weight of ammonium polyphosphate and 7 parts by weight of triphenylboroxane, and react for 2h;

[0032] 2) Remove the remaining DMF from the reaction by rotary evaporation, transfer it to a twin-screw extruder, adjust the temperature of each zone to 180°C-200°C, and rotate the speed to 400-600r / min. Electrostatic TPU composite.

[0033] figure 2 , 3 The SEM images of the flame-retardant and antistatic TPU composite material obtained in Example 3 before and after combustion are respectively. It can be seen from the figure that the unburned composites are in a stacked wave shape under microscopic conditions, while the surface of the burned composites presents a plane of carbon layers, which is due to th...

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Abstract

The invention discloses a flame-retardant antistatic TPU composite material, and belongs to the field of plastic processing. Expandable graphene oxide, ammonium polyphosphate, triphenyl boroxane, TPU (thermoplastic polyurethane) particles and DMF (dimethyl formamide) are used as raw materials, and melt blending and extrusion molding methods are adopted for preparation. The obtained flame-retardant antistatic TPU composite material can realize rapid surface carbon formation during combustion, can realize rapid self-extinguishing after a fire source is removed, has a strong smoke suppression effect, and also has good antistatic performance.

Description

technical field [0001] The invention belongs to the field of plastic processing, in particular to a flame retardant and antistatic TPU composite material. Background technique [0002] Thermoplastic polyurethane elastomer rubber (TPU) is a mature environmental protection material, which has been widely used in medical and health, electronic appliances, industry and sports, etc. It has high strength, good toughness and wear resistance unmatched by other plastic materials. , cold resistance, oil resistance, water resistance, aging resistance, weather resistance and other characteristics, but also has many excellent functions such as high waterproof and moisture permeability, wind resistance, cold resistance, antibacterial, mildew resistance, warmth retention, UV resistance and energy release. However, TPU is a flammable material, which will melt and burn under the condition of open fire, which has a huge impact on the performance. At the same time, thermoplastic polyurethane ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L75/04C08K7/24C08K3/32C08K5/55
CPCC08K7/24C08K3/32C08K5/55C08L2201/02C08L2201/04C08K2003/323C08L75/04
Inventor 郑玉婴蔡清树洪贤晟
Owner FUZHOU UNIV
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