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Amino trimethylene phosphonate loaded graphene oxide reinforced and toughened phenolic foam material and preparation method thereof

A technology of amino trimethylene phosphonate and magnesium amino trimethylene phosphonate, applied in the field of materials, can solve the problems of poor flame retardant efficiency, poor thermo-oxidative stability, weakened physical barrier effect, etc., and achieve good thermal stability. and flame retardant performance, the effect of excellent flame retardant performance

Active Publication Date: 2018-07-06
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to literature reports [J. Mater. Chem. A, 2015, 3, 9826–9836. RSC Adv., 2015, 5, 99907-99913.], graphene oxide has a certain flame retardant and toughening effect in phenolic foam materials , but in the process of polymer combustion, the physical barrier effect of graphene oxide in the polymer matrix is ​​weakened due to its poor thermal oxygen stability, and the flame retardant efficiency becomes poor.

Method used

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  • Amino trimethylene phosphonate loaded graphene oxide reinforced and toughened phenolic foam material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0028] The preparation method of nanometer amino trimethylene phosphonic acid magnesium supported graphene oxide (Mg-AMP / GO) flame retardant is as follows: the present invention synthesizes graphene oxide by Hummers method, is about to 2 g graphite and 2 g NaNO 3 into a three-necked flask, and then slowly add 80 ml H under an ice-water bath 2 SO 4 , after low-temperature intercalation oxidation for 2 h, slowly add 10 g potassium permanganate, then stir at 35 °C for 2 h, then slowly add 5% H 2 SO 4 Solution 200 ml (red), react at 60°C for 2 h after addition, then add a certain amount of H 2 o 2 React at 90°C for 1 h, and finally add 1 L of distilled water to continue the reaction for 1 h, the system is golden yellow, then centrifuge the obtained graphene oxide with 5% HCl and distilled water until the sulfuric acid in the graphene oxide is washed away root ions, dried, and then disperse graphene oxide in deionized aqueous solution to obtain a solution of graphene oxide (3 m...

Embodiment 2

[0032] Weigh 100 parts of resole phenolic resin, respectively mix 5 parts of Tween-80 surfactant, 2 parts of flame retardant and toughening agent, and 9 parts of mixed acid curing agent (water: toluene-4-sulfonic acid: phosphoric acid=2:2 : 1) and 8 parts of n-pentane foaming agent were stirred evenly, poured into a mold, and foamed at 80°C for 1 hour to obtain aminotrimethylene phosphonate supported graphene oxide reinforced toughened phenolic foam. The preparation of the flame retardant toughening agent is the same as in Example 1.

Embodiment 3

[0034] Weigh 100 parts of resole phenolic resin, respectively mix 5 parts of Tween-80 surfactant, 3 parts of flame retardant and toughening agent, and 9 parts of mixed acid curing agent (water: toluene-4-sulfonic acid: phosphoric acid=2:2 : 1) and 8 parts of n-pentane foaming agent were stirred evenly, poured into a mold, and foamed at 80°C for 1 hour to obtain aminotrimethylene phosphonate supported graphene oxide reinforced toughened phenolic foam. The preparation of the flame retardant toughening agent is the same as in Example 1.

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Abstract

The invention belongs to the technical field of materials and particularly relates to an amino trimethylene phosphonate loaded graphene oxide reinforced and toughened phenolic foam material and a preparation method of the amino trimethylene phosphonate loaded graphene oxide reinforced and toughened phenolic foam material and preparation method. The specific preparation method is as follows: rapidly stirring 100 parts of A-stage phenolic resin, 8-10 parts of a curing agent, 6-12 parts of a foaming agent, 4-6 parts of a surfactant and 1-5 parts of an amino trimethylene phosphonate loaded graphene oxide reinforcing and toughening agent evenly, adding into a mould, closing the mould, foaming and curing at the temperature of 70-90 DEG C for 40-80 minutes, and obtaining the amino trimethylene phosphonate loaded graphene oxide reinforced and toughened phenolic foam material. The prepared phenolic foam material has the characteristics of higher strength, good fire resistance, and low pulverization rate.

Description

technical field [0001] The invention belongs to the field of material technology, and in particular relates to an aminotrimethylene phosphonate loaded graphene oxide reinforced and toughened phenolic foam material and a preparation method thereof. Background technique [0002] Polymer foams, such as polystyrene (PS) foam and polyurethane (PU) foam, are widely used in building insulation materials because of their excellent thermal insulation properties, good mechanical properties, excellent weather resistance, and easy molding processability. However, both PS foam and PU foam are very flammable materials, and fire accidents caused by their fire often occur, causing heavy casualties and property losses. Although phenolic foam material has the advantages of good heat preservation effect, excellent flame retardancy, good flame penetration resistance, low smoke and low toxicity when burning, it also has the defects of high hardness, high brittleness and easy pulverization, which...

Claims

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Application Information

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IPC IPC(8): C08L61/06C08K9/12C08K3/04C08K5/5317C08J9/14
CPCC08J9/141C08J2203/14C08J2361/06C08K3/04C08K5/5317C08K9/12
Inventor 王正洲刘磊
Owner TONGJI UNIV