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Flame-retardant graphene polyurethane composite sponge material and application

A technology of composite sponge and graphene, applied in the field of sponge materials, can solve the problems such as inability to exert graphene performance, large combustion heat release, low electrical conductivity, etc., and achieve high elasticity, good strength, and excellent flame retardancy. Effect

Inactive Publication Date: 2021-07-16
DONGGUAN DERUCCI BEDDING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the electrical conductivity of the polyurethane composite sponge is low, and the performance of graphene cannot be well exerted.
Moreover, as an organic material, the polyurethane sponge mattress itself has the problems of being easy to ignite, having a large amount of burning heat and a large amount of smoke. It will amplify the risk of burning; the current polyurethane sponge still has many deficiencies in the flame retardant treatment

Method used

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  • Flame-retardant graphene polyurethane composite sponge material and application
  • Flame-retardant graphene polyurethane composite sponge material and application
  • Flame-retardant graphene polyurethane composite sponge material and application

Examples

Experimental program
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Effect test

Embodiment 1

[0069] A flame-retardant graphene polyurethane composite sponge material, the preparation raw materials include the following components in parts by weight:

[0070]

[0071] The preparation method is as follows:

[0072] (1) Add polyoxypropylene glycol, graphene, silicon dioxide-coated conductive carbon black, aluminum hydroxide and dispersant to the reaction kettle, stir and mix evenly under heating conditions, and then the material is used in a three-stage container with a diameter of 260mm The roller machine is used for circular dispersion until the fineness is less than 20 μm to obtain polyol slurry;

[0073] (2) Add foaming agent, catalyst, cell opener and foam stabilizer to the polyol slurry obtained in step (1), and mix uniformly to obtain component A;

[0074] (3) Maintain the component A and TDI obtained in step (2) at a temperature of 45°C, pump them into a dynamic mixer with a mass ratio of 4:1 and mix them evenly, and then send them into a continuous foaming p...

Embodiment 2

[0076] A flame-retardant graphene polyurethane composite sponge material, the preparation raw materials include the following components in parts by weight:

[0077]

[0078] The preparation method is as follows:

[0079] (1) Add polytetrahydrofuran diol, graphene, silicon dioxide-coated conductive carbon black, aluminum hydroxide, magnesium hydroxide and a dispersant into the reactor, stir and mix evenly under heating conditions, and then use a material with a diameter of A 260mm three-roll machine is used for circular dispersion until the fineness is less than 20μm to obtain polyol slurry;

[0080] (2) Add foaming agent, catalyst, cell opener and foam stabilizer to the polyol slurry obtained in step (1), and mix uniformly to obtain component A;

[0081] (3) Maintain component A and 4,4'-MDI obtained in step (2) at a temperature of 50°C, pump them into a dynamic mixer at a mass ratio of 3:1 and mix them evenly, and then send them to a continuous foaming production line ,...

Embodiment 3

[0083] A flame-retardant graphene polyurethane composite sponge material, the preparation raw materials include the following components in parts by weight:

[0084]

[0085] The preparation method is as follows:

[0086] (1) Add polyoxypropylene glycol, propylene glycol, graphene, silica-coated conductive carbon black, aluminum hypophosphite and dispersant into the reaction kettle, stir and mix evenly under heating conditions, and then use a material with a diameter of 260mm The three-roll machine is used for circular dispersion until the fineness is less than 20 μm, and polyol slurry is obtained;

[0087] (2) Add foaming agent, catalyst, cell opener and foam stabilizer to the polyol slurry obtained in step (1), and mix uniformly to obtain component A;

[0088] (3) Maintain the component A and TDI obtained in step (2) at a temperature of 50°C, pump them into a dynamic mixer with a mass ratio of 5:1 and mix them evenly, and then send them into a continuous foaming producti...

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Abstract

The invention provides a flame-retardant graphene polyurethane composite sponge material and application. The flame-retardant graphene polyurethane composite sponge material is prepared from the following raw materials in parts by weight: 40 to 60 parts of polyol, 10 to 30 parts of polyisocyanate, 2 to 10 parts of graphene, 5 to 15 parts of silicon dioxide coated conductive carbon black, 2 to 10 parts of aluminum-containing flame retardant and 0.01 to 3 parts of foaming agent. According to the composite sponge material, polyurethane foam formed by polyol, polyisocyanate and a foaming agent is used as a matrix, and graphene, silicon dioxide coated conductive carbon black and an aluminum-containing flame retardant are synergistically compounded, so that the flame-retardant graphene polyurethane composite sponge material has excellent flame retardance, conductivity and electrothermal conversion efficiency; meanwhile, high strength, high elasticity and good thermal conductivity are shown, the material is suitable for high-performance functional mattresses, sofa cushions or electric heating pads and other household articles, and the application prospect is very wide.

Description

technical field [0001] The invention belongs to the technical field of sponge materials, and in particular relates to a flame-retardant graphene polyurethane composite sponge material and its application. Background technique [0002] Bedding is an indispensable item in people's home life, and it is usually an important partner that accompanies people to spend the longest time. In the traditional concept of health preservation, sleep can not only give the brain a full rest, but also help the recovery of various body functions. Therefore, the quality of sleep will have an impact on people's body and mood. Mattresses are the most representative members of bedding. Mattresses currently on the market include cotton pads, sponge mattresses, latex mattresses, spring mattresses and brown mattresses, etc. Among them, cotton pads have poor resilience and are prone to Hardened, spring mattresses have good air permeability, but their lifespan is short, and they are easy to lose their ...

Claims

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Application Information

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IPC IPC(8): C08G18/48C08K9/10C08K3/04C08K3/36C08K3/22C08K3/32C08G101/00
CPCC08G18/4825C08G18/4854C08K9/10C08K3/04C08K3/042C08K3/36C08K3/22C08K3/32C08K2201/001C08K2003/2227C08K2003/2224
Inventor 王炳坤
Owner DONGGUAN DERUCCI BEDDING CO LTD
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