Graphene-doped flame-retardant material and preparation method thereof

A flame retardant material, graphene technology, applied in the field of flame retardant materials, can solve the problems that affect the mechanical properties and performance of polyurethane materials, it is difficult to inhibit the combustion process of materials, and the flame retardant performance of polyurethane is poor, so as to achieve good mechanical properties and development Effect of small cell size and good flame retardancy

Active Publication Date: 2021-06-08
江苏星途新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Polyurethane is a porous polymer compound with sound insulation, shockproof, anti-virus, corrosion resistance and other properties. It is divided into two categories: polyester polyurethane and polyether polyurethane. It is mainly used in polyurethane plastics, polyurethane fibers, polyurethane elastomers, polyurethane Coatings and other products have stable chemical properties, good mechanical properties, and excellent resilience. They can be used as packaging materials, sound insulation materials, filter materials, etc., and also play an important role in construction, aviation industry, and thermal insulation struct

Method used

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  • Graphene-doped flame-retardant material and preparation method thereof

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Effect test

Embodiment 1

[0035] A flame-retardant material doped with graphene, comprising the following raw materials in parts by weight: 40 parts of polyether polyols, 100 parts of isocyanates, 30 parts of flame retardants, 0.2 parts of catalysts, 5 parts of chain extenders, 2 parts of graphene fillers, 1 part of stabilizer and 2 parts of deionized water;

[0036] This flame retardant material doped with graphene is made by the following steps:

[0037] Step S1: Place the polyether polyol in the weight part of the formula in a vacuum drying oven, and dry it for 2 hours at a temperature of 80° C. to obtain a dried polyether polyol. Put the isocyanate in a vacuum drying oven, drying at 60°C for 3 hours to obtain dry isocyanate;

[0038] Step S2: Place the dry polyether polyol obtained in step S1, flame retardants, catalysts, chain extenders, graphene fillers, stabilizers and deionized water in the mixing tank and mix them in the power Under the conditions of 50W and 20kHz frequency, ultrasonic dispe...

Embodiment 2

[0053] A flame-retardant material doped with graphene, comprising the following raw materials in parts by weight: 50 parts of polyether polyols, 120 parts of isocyanates, 40 parts of flame retardants, 0.6 parts of catalysts, 7 parts of chain extenders, 6 parts of graphene fillers, 3 parts of stabilizer and 3 parts of deionized water;

[0054] This flame retardant material doped with graphene is made by the following steps:

[0055] Step S1: Put the polyether polyol in the weight part of the formula in a vacuum drying oven, and dry it for 4 hours at a temperature of 90°C to obtain a dried polyether polyol, place the isocyanate in a vacuum drying oven, drying at a temperature of 70°C for 4 hours to obtain dry isocyanate;

[0056] Step S2: Place the dry polyether polyol obtained in step S1, flame retardants, catalysts, chain extenders, graphene fillers, stabilizers and deionized water in the mixing tank and mix them in the power Under the conditions of 55W and 20kHz frequency, ...

Embodiment 3

[0071] A flame retardant material doped with graphene, comprising the following raw materials in parts by weight: 60 parts of polyether polyol, 130 parts of isocyanate, 50 parts of flame retardant, 1 part of catalyst, 10 parts of chain extender, 8 parts of graphene filler, 5 parts of stabilizer and 5 parts of deionized water;

[0072] This flame retardant material doped with graphene is made by the following steps:

[0073] Step S1: Put the polyether polyol in the weight part of the formula in a vacuum drying oven, and dry it for 5 hours at a temperature of 100° C. to obtain a dried polyether polyol. Put the isocyanate in a vacuum drying oven, drying at 80°C for 6 hours to obtain dry isocyanate;

[0074]Step S2: Place the dry polyether polyol obtained in step S1, flame retardants, catalysts, chain extenders, graphene fillers, stabilizers and deionized water in the mixing tank and mix them in the power Under the conditions of 60W and 21kHz frequency, ultrasonic dispersion tre...

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Abstract

The invention discloses a graphene-doped flame-retardant material and a preparation method thereof. The graphene-doped flame-retardant material comprises the following raw materials in parts by weight: 40-60 parts of polyether polyol, 100-130 parts of isocyanate, 30-50 parts of a flame retardant, 0.2-1 part of a catalyst, 5-10 parts of a chain extender, 2-8 parts of graphene filler, 1-5 parts of a stabilizer and 2-5 parts of deionized water. The preparation method comprises the following steps: S1, drying polyether polyol and isocyanate; S2, uniformly mixing and dispersing polyether polyol, a flame retardant, a catalyst, a chain extender, a graphene filler, a stabilizer and deionized water to obtain a mixture; S3, enabling isocyanate and the mixture to be subjected to a reaction, and preparing a graphene-doped flame retardant material. The flame-retardant material prepared by the invention is excellent in flame-retardant property, relatively good in mechanical property, relatively low in heat conductivity coefficient, relatively high in practical value and worthy of popularization.

Description

technical field [0001] The invention belongs to the technical field of flame retardant materials, and in particular relates to a graphene-doped flame retardant material and a preparation method thereof. Background technique [0002] Flame retardants are functional additives that enhance the flame retardancy of flammable polymers. They can be divided into additive flame retardants and reactive flame retardants. Additive flame retardants are added to materials by mechanical mixing. Inorganic flame retardants such as antimony trioxide, aluminum hydroxide, graphene and other flame retardants, organic flame retardants such as halogen flame retardants, phosphorus nitrogen flame retardants, etc., reactive flame retardants are used as a single The body participates in the polymerization reaction and enters the organic polymer material, so that the polymer material itself contains flame retardant components, which has less impact on the performance of the polymer material, and has th...

Claims

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Application Information

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IPC IPC(8): C08G18/10C08G18/66C08G18/32C08K3/04C08K9/06C08K3/02
CPCC08G18/10C08G18/6685C08G18/3851C08K3/042C08K9/06C08K3/02C08K2003/026C08K2201/011C08G18/3206
Inventor 崔建强许鹏天李永锋张标
Owner 江苏星途新材料科技有限公司
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