Low-content graphene-modified organic silicone flame-retardant foamed composite material and preparation method thereof

A technology of graphene modification and composite materials, which is applied in the field of organic silicon, which can solve the problems of environmental pollution and flame retardants endangering human health, and achieve the effects of uniform cell structure, excellent flame retardant and self-extinguishing, and low density

Active Publication Date: 2018-05-08
HANGZHOU NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that a very high content of flame retardant needs to be added to the current organic silicon foam to achieve the flame retardant effect, and some flame retardants have the problems of endangering human health and polluting the environment, the invention provides a low-content graphene-modified organic Silicon green flame retardant foam composite material and its preparation method, the material not only has excellent flame retardant self-extinguishing performance, but also has good elastic performance, compression performance and hydrophobic performance

Method used

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  • Low-content graphene-modified organic silicone flame-retardant foamed composite material and preparation method thereof
  • Low-content graphene-modified organic silicone flame-retardant foamed composite material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0039] Take a total of 100g of hydrogen-containing silicone oil with a viscosity of 25mPa.s, a hydrogen content of 0.3%, and a hydroxyl silicone oil with a viscosity of 10Pa.s, and add 1gKH550 functionalized graphene, 2g of 3,5-dimethyl-1-hexyne-3- Alcohol and 5g of AC foaming agent were thoroughly mixed by mechanical stirring to prepare component A; at the same time, take 30g of vinyl silicone oil with a viscosity of 5Pa.s, add 0.30g of chloroplatinic acid-isopropanol solution containing 1500ppm, and pass Mechanical stirring is used to mix thoroughly and evenly to prepare component B.

[0040] Then components A and B were mixed uniformly by mechanical stirring for 30 seconds at a mass ratio of 1:1, and then cured at 80°C for 5 minutes and then treated at a high temperature of 180°C for 15 minutes to prepare a silicone flame-retardant foam composite sample 1.

[0041] The cells of spline 1 are visually uniform, and the scanning electron microscope picture is as follows figure...

Embodiment 2

[0043] Take a total of 40g of hydrogen-containing silicone oil with a viscosity of 30mPa.s, a hydrogen content of 0.2%, and a hydroxyl silicone oil with a viscosity of 5Pa.s, and add 0.5g of graphene powder and 1.5g of 3,5-dimethyl-1-hexyne to it -3-alcohol and 1.6g of water were mixed thoroughly by mechanical stirring to prepare component A; at the same time, take 20g of vinyl silicone oil with a viscosity of 5Pa.s, add 0.25g of chloroplatinic acid-isopropanol solution containing 1500ppm, Prepare component B after mixing thoroughly and uniformly by mechanical stirring.

[0044] Then components A and B were mixed uniformly by mechanical stirring for 30s at a mass ratio of 1:1, and then cured at 40°C for 10 minutes and then treated at a high temperature of 180°C for 20 minutes to prepare silicone flame-retardant foam composite sample 2.

[0045] Such as figure 2As shown, after passing the vertical burning test, comparing the combustion results, it can be known that: the silic...

Embodiment 3

[0047] Take a total of 30g of hydrogen-containing silicone oil with a viscosity of 25mPa.s, a hydrogen content of 0.5%, and a hydroxyl silicone oil with a viscosity of 12Pa.s, and add 0.4g KH560 functionalized graphene, 0.45g 3-methylbutynol-3 and 1.4g Polyethylene glycol, prepared by mechanical stirring and mixing well to obtain component A; at the same time, take 60g of vinyl silicone oil with a viscosity of 10Pa.s, add 0.25g of Castel platinum catalyst containing 2000ppm, and mix well by mechanical stirring Then prepare component B.

[0048] Then components A and B were mixed uniformly by mechanical stirring for 30s at a mass ratio of 1:1, and then cured at 90°C for 5 minutes and then treated at a high temperature of 150°C for 20 minutes to prepare a silicone flame-retardant foam composite sample 3.

[0049] After passing the vertical burning test, the results of comparative combustion show that the silicone foam added with KH560 functionalized graphene is not easy to burn ...

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Abstract

The invention relates to the technical field of organic silicon. In order to solve the problems that a flame retardant with a very high content needs to be added to achieve a flame retardant effect incurrent organic silicone foam, and some flame retardants do harm to human health and pollutes the environment, the invention provides a low-content graphene-modified organic silicone green flame-retardant foamed composite material and a preparation method thereof. The composite material is prepared from the following raw materials in parts by weight: 40-98 parts of organic silicone oil, 0.2-10 parts of a foaming agent, 0.01-10 parts of a flame retardant, 0.0002-0.02 part of a catalyst and 0.1-5.0 parts of an inhibitor. The composite material provided by the invention not only has excellent flame-retardant self-extinguishing properties, but also has good elastic properties, compression properties and hydrophobic properties.

Description

technical field [0001] The invention relates to the technical field of organosilicon, in particular to a method for preparing a low-content graphene-modified organosilicon green flame-retardant foam composite material. Background technique [0002] At present, foam materials are widely used in packaging, mattresses, construction, transportation, aerospace and other fields due to their outstanding advantages such as light weight, heat insulation, sound absorption, shock absorption, and antistatic. In recent years, the foam material production industry has developed rapidly, and the output and variety are increasing day by day. Common foam materials include polyurethane sponge (PU), polyethylene foam (PE), polystyrene foam (EPS), etc., all of which have the common characteristics of foam materials themselves. On the one hand, they all have the advantages of low density and good elasticity, but on the other hand, they are flammable and thermally decomposed to produce toxic sub...

Claims

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Application Information

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IPC IPC(8): C08L83/04C08L83/07C08L83/05C08K9/06C08K3/04C08J9/10C08J9/12C08J9/14
CPCC08J9/0023C08J9/0061C08J9/0066C08J9/009C08J9/0095C08J9/103C08J9/125C08J9/142C08J2203/04C08J2203/10C08J2203/12C08J2383/04C08J2483/04C08K3/04C08K9/06
Inventor 汤龙程李扬张国栋曹承飞赵丽龚丽秀
Owner HANGZHOU NORMAL UNIVERSITY
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