Halogen-free flame-retardant thermoplastic polyurethane nano composite material and preparation method thereof

A thermoplastic polyurethane and nanocomposite technology, applied in the direction of carbide, titanium carbide, molybdenum oxide/molybdenum hydroxide, etc., can solve the problem of agglomeration, difficult to prepare polymer nanocomposite materials, flame retardant and smoke suppression and detoxification effect. Ideal and other issues, to achieve the effect of reducing the risk of fire and the method is simple

Active Publication Date: 2020-10-30
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, layered TiC and MoO 3 As a flame retardant, there are still the following technical problems: (1) it is difficult to prepare polymer nanocomposites because the two kinds of nanoparticles are prone to agglomeration; (2) separately add layered titanium carbide and MoO 3 The obtained flame retardancy and smoke suppression and toxicity reduction effects are not ideal

Method used

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  • Halogen-free flame-retardant thermoplastic polyurethane nano composite material and preparation method thereof
  • Halogen-free flame-retardant thermoplastic polyurethane nano composite material and preparation method thereof
  • Halogen-free flame-retardant thermoplastic polyurethane nano composite material and preparation method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0026] A halogen-free flame-retardant thermoplastic polyurethane nanocomposite material is prepared according to the following steps (the following raw materials are calculated in parts by weight):

[0027] (1) Take 20 mL of hydrochloric acid, 1.56 parts of lithium fluoride, and 1 part of carbon-aluminum-titanium in a centrifuge test tube, and heat it in an oil bath at 35 degrees Celsius for 48 hours under magnetic stirring to obtain titanium carbide. The obtained titanium carbide is pickled, washed with water, and ultrasonically stripped to obtain layered titanium carbide;

[0028] (2) Take 0.1 part of ammonium molybdate in 30 mL of deionized water, add 1.054 mL of hydrochloric acid dropwise into the solution, and stir ultrasonically for 30 min. Slowly add 0.33 parts of layered titanium carbide obtained in step (1), and mechanically stir for 2 h under the condition of blowing nitrogen gas. The solution was transferred to a reactor and reacted at 180°C for 24h. After cooling...

Embodiment 2

[0032] A halogen-free flame-retardant thermoplastic polyurethane nanocomposite material is prepared according to the following steps (the following raw materials are calculated in parts by weight):

[0033] (1) Take 20 mL of hydrochloric acid, 1.56 parts of lithium fluoride, and 1 part of carbon-aluminum-titanium in a centrifuge test tube, and heat it in an oil bath at 35 degrees Celsius for 48 hours under magnetic stirring to obtain titanium carbide. The obtained titanium carbide is pickled, washed with water, and ultrasonically stripped to obtain layered titanium carbide;

[0034] (2) Take 0.1 part of ammonium molybdate in 30 mL of deionized water, add 1.054 mL of hydrochloric acid dropwise into the solution, and stir ultrasonically for 30 min. Slowly add 0.33 parts of layered titanium carbide obtained in step (1), and mechanically stir for 2 h under the condition of blowing nitrogen gas. The solution was transferred to a reactor and reacted at 180°C for 24h. After cooling...

Embodiment 3

[0038] A halogen-free flame-retardant thermoplastic polyurethane nanocomposite material is prepared according to the following steps (the following raw materials are calculated in parts by weight):

[0039] (1) Take 20 mL of hydrochloric acid, 1.56 parts of lithium fluoride, and 1 part of carbon-aluminum-titanium in a centrifuge test tube, and heat it in an oil bath at 35 degrees Celsius for 48 hours under magnetic stirring to obtain aluminum titanium oxide. The obtained titanium carbide is pickled, washed with water, and ultrasonically stripped to obtain layered titanium carbide;

[0040] (2) Take 0.1 part of ammonium molybdate in 30 mL of deionized water, add 1.054 mL of hydrochloric acid dropwise into the solution, and stir ultrasonically for 30 min. Slowly add 0.33 parts of layered titanium carbide obtained in step (1), and mechanically stir for 2 h under the condition of blowing nitrogen gas. The solution was transferred to a reactor and reacted at 180°C for 24h. After ...

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Abstract

The invention belongs to the field of preparation of flame retardants, and particularly relates to a halogen-free flame-retardant thermoplastic polyurethane nano composite material and a preparation method thereof. The composite material comprises the following components in parts by weight: 58.8 to 59.7 parts of thermoplastic polyurethane and 0.3 to 1.2 parts of a hybrid flame retardant, whereinthe hybrid flame retardant is a layered titanium carbide-molybdenum trioxide hybrid flame retardant. The nano composite material prepared by the preparation method can realize efficient flame retardance, smoke suppression and toxicity reduction, reduces the fire hazard, and is simple in preparation principle and method.

Description

Technical field: [0001] The invention belongs to the field of flame retardant preparation, and in particular relates to a halogen-free flame-retardant thermoplastic polyurethane nanocomposite material and a preparation method thereof. Background technique: [0002] Thermoplastic polyurethane material is a kind of engineering plastic with linear alternating soft and hard chain segments. The hard segment polyhard cyanate and broad chain agent endow thermoplastic polyurethane material with good strength, high temperature resistance, oil resistance and wear resistance. In recent years, thermoplastic polyurethane materials have been widely used in various fields, such as automobiles, energy saving, wire and cable, light industry and aerospace. [0003] However, thermoplastic polyurethane materials are deficient in performance. The thermoplastic polyurethane material has strong polarity and generates a lot of heat during plasticization, which greatly increases the processing temp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L75/04C08K7/00C08K3/22C01B32/921C01G39/02
CPCC01G39/02C08K3/22C08K7/00C08K2003/2255C08K2201/011C08L2201/02C08L2201/22C08L2207/04C01B32/921C08L75/04
Inventor 施永乾叶娅婷杨晔聂逸喆王恒睿陈琨杰
Owner FUZHOU UNIV
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