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Low-smoke flame-retardant polymer composite material and preparation method thereof

A composite material, low-smoke and flame-retardant technology, applied in the field of polymer materials, to achieve the effects of reducing smoke release, enhancing compactness, enhancing flame-retardant and smoke-suppressing performance

Active Publication Date: 2016-10-26
XIHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, in the prior art, hybrids with surface-loaded metal ions have not been introduced into the material system of polymers and flame retardants as a smoke suppression synergist and used in conjunction with intumescent flame retardants to improve the flame retardancy and performance of composite materials. Related reports on smoke suppression performance

Method used

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  • Low-smoke flame-retardant polymer composite material and preparation method thereof
  • Low-smoke flame-retardant polymer composite material and preparation method thereof
  • Low-smoke flame-retardant polymer composite material and preparation method thereof

Examples

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preparation example Construction

[0059] Furthermore, the preparation method of the hybrid comprises the following steps:

[0060] (1) adding graphite oxide and deionized water into the reactor, adding a weak base dropwise to adjust the pH value of the solution to 7-8, peeling off the graphite oxide under ultrasonic oscillation and microwave heating to obtain a graphene oxide suspension;

[0061] (2) Add the metal salt into the graphene oxide suspension according to the metering, continue to peel off under ultrasonic oscillation and microwave heating until the concentration of the suspension is stable, and then stop to obtain the mixed solution; in the whole process, adjust the pH with a weak base to control the pH =7~8;

[0062] (3) After the peeling is completed, transfer the mixed solution to other reactors, control the temperature at 30-60° C., stir for 8-24 hours, filter after the stirring, wash with water at least 3 times (preferably 3-6 times), Wash with an organic solvent at least 3 times (preferably ...

Embodiment 1

[0066] Example 1 Preparation of Graphene Oxide Supported Metal Ion Hybrid

[0067] Add 1g of graphite oxide (GY100) and 200mL of deionized water into the five-necked glass bottle matched with the ultrasonic microwave linkage instrument, add ammonia water dropwise to make the pH of the solution between 7 and 8, and shake it under ultrasonic vibration (the amount of ultrasonic crushing is 200mL, and the ultrasonic vibration When different horns emit ultrasonic waves to oscillate and break, the corresponding optimal crushing amount is certain, and the crushing amount is measured by volume. Therefore, the crushing amount of the horn is the same as the volume of the solution)) and microwave heating (heating temperature 30° C.) under the action of peeling for 1.5 hours to obtain a graphene oxide suspension with a mass concentration of 0.0050 g / mL;

[0068] Then add 2g of copper acetate to the suspension, and continue peeling off for 1 hour under ultrasonic vibration and microwave he...

Embodiment 2

[0071] Example 2 Preparation of Graphene Oxide Supported Metal Ion Hybrid

[0072] Add 0.5g of graphite oxide (GY100) and 300mL of deionized water into the five-necked glass bottle matched with the ultrasonic microwave linkage instrument, add ammonia water dropwise to make the pH value of the solution between 7 and 8, and shake it under ultrasonic vibration (the amount of ultrasonic crushing is 300mL) and Microwave heating (heating temperature 40°C) was used to peel off for 1 hour to obtain a graphene oxide suspension with a mass concentration of 0.0017g / mL;

[0073] Then add 1.5g cobalt acetate to the suspension, and continue to peel off for 1 hour to obtain the mixed solution under ultrasonic vibration and microwave heating. During the peeling process, measure the pH value of the mixed solution. 7~8;

[0074] Transfer the stripped mixed solution to a 500mL three-necked flask and stir at 50°C for 9h. After the stirring is completed, filter, wash with water 5 times, and then ...

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Abstract

The invention belongs to the field of polymer materials and relates to a low-smoke flame-retardant polymer composite material. The low-smoke flame-retardant polymer composite material is prepared from, by weight, 100 parts of a polymer matrix, 10-60 parts of an intumescent flame retardant, 0-30 parts of a charring agent, 0-20 parts of a foaming agent and 0.5-5 parts of a smoke inhibition synergist, wherein the smoke inhibition synergist is a hybrid formed by loading of metal ions on the surface of graphene oxide. The hybrid formed by loading of the metal ions on the surface of graphene oxide is used as the smoke inhibition synergist which is synergically used with the the intumescent flame retardant to improve flame retardation and smoke inhibition performances of various polymer materials such as epoxy resin and polyurethane. A new approach is provided for preparation of multifunctional high-performance polymer composite materials.

Description

technical field [0001] The invention relates to a low-smoke flame-retardant polymer composite material, which belongs to the field of polymer materials. Background technique [0002] With the development of science and technology, the progress of new materials is constantly guided and promoted, and the single material matrix is ​​gradually replaced by composite materials. Multifunctional composite materials have become the focus of research, and flame-retardant and smoke-suppressive composite materials are one of the directions. [0003] At present, on the basis of comprehensive consideration of flame retardant and smoke suppression efficiency and environmental protection, phosphorus-based flame retardants are mostly used to modify the flame retardant of polymer matrix materials. Phosphorus-based flame retardants have high flame-retardant efficiency and are not easy to produce toxic fumes. In recent years, phosphorus-based flame retardants such as phosphates, phosphites, a...

Claims

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Application Information

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IPC IPC(8): C08L63/00C08L75/04C08L3/02C08L23/12C08K9/12C08K5/098C08K3/32C08K5/3492C08J9/10
CPCC08J9/108C08J2203/04C08J2323/12C08J2363/00C08J2375/04C08J2403/02C08K3/32C08K5/098C08K5/3492C08K5/34928C08K9/12C08K2003/323C08L75/04C08L2201/02C08L2201/14C08L2203/14C08L63/00C08L3/02C08L23/12
Inventor 陈明军李欣儡王许刘治国钟柳罗蔓钟怡娟
Owner XIHUA UNIV
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