Benzoxazine/epoxy resin/oxidized graphene composite material and preparation method thereof

A technology of benzoxazine and epoxy resin, which is applied in the field of benzoxazine/epoxy resin/graphene oxide composite material and its preparation, can solve the problem of high curing temperature and achieve lower curing temperature and high heat resistance index , the effect of excellent performance

Inactive Publication Date: 2016-03-16
SUZHOU TAIHU ELECTRIC ADVANCED MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The benzoxazine cured product has good heat resistance, moisture resistance, mechanical properties and electrical properties, and its disadvantage is that the curing temperature is high

Method used

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  • Benzoxazine/epoxy resin/oxidized graphene composite material and preparation method thereof
  • Benzoxazine/epoxy resin/oxidized graphene composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Step 1, dissolving 0.007 g of graphene oxide in ethanol, and then treating it with an ultrasonic wave with a power of 300-800 watts for 2 hours to prepare a graphene oxide solution with a concentration of 0.01 g / L.

[0028] Step 2: Weigh 15 g of benzoxazine intermediate, 3 g of epoxy resin, and add 42 g of ethanol to prepare benzoxazine-epoxy resin solution.

[0029] Step 3, adding the benzoxazine-epoxy resin solution into the graphene oxide ethanol solution, stirring for 30 minutes to disperse it evenly, and then using the ultrasonic treatment in step 1 for 1 hour to obtain the benzoxazine / epoxy resin / graphene oxide mixture.

[0030] Step 4, put the benzoxazine / epoxy resin / graphene oxide mixture prepared in step 3 into a vacuum oven at 50°C, and dry the ethanol in the mixture to obtain benzoxazine / epoxy resin / graphene oxide Graphene oxide composite material intermediate.

[0031] Step 5, curing the benzoxazine / epoxy resin / graphene oxide composite materi...

Embodiment 2

[0034] Step 1, dissolving 0.45 g of graphene oxide in ethanol, and then treating it with an ultrasonic wave with a power of 300-800 watts for 3 hours to prepare a graphene oxide solution with a concentration of 20 g / L.

[0035] Step 2: Weigh 15 g of benzoxazine intermediate, 30 g of epoxy resin, and add 105 g of ethanol to prepare benzoxazine-epoxy resin solution.

[0036] Step 3, adding the benzoxazine-epoxy resin solution into the graphene oxide ethanol solution, stirring for 30 minutes to disperse it evenly, and then using ultrasonic treatment in step 1 for 2 hours to obtain benzoxazine / epoxy resin / graphene oxide mixture.

[0037] Step 4, put the benzoxazine / epoxy resin / graphene oxide mixture prepared in step 3 into a vacuum oven at 90°C, and dry the ethanol in the mixture to obtain benzoxazine / epoxy resin / graphene oxide Graphene oxide composite material intermediate.

[0038] Step 5, curing the benzoxazine / epoxy resin / graphene oxide composite material inter...

Embodiment 3

[0041] Step 1, dissolving 0.01 g of graphene oxide in ethanol, and then treating it with an ultrasonic wave with a power of 300-800 watts for 1 hour to prepare a graphene oxide solution with a concentration of 0.1 g / L.

[0042] Step 2, weigh 15 g of benzoxazine intermediate, 15 g of epoxy resin, and add 70 g of ethanol to prepare benzoxazine-epoxy resin solution.

[0043] Step 3, adding the benzoxazine-epoxy resin solution into the graphene oxide ethanol solution, stirring for 30 minutes to disperse it evenly, and then using ultrasonic treatment in step 1 for 3 hours to obtain benzoxazine / epoxy resin / graphene oxide mixture.

[0044] Step 4, put the benzoxazine / epoxy resin / graphene oxide mixture prepared in step 3 into a vacuum oven at 70°C, and dry the ethanol in the mixture to obtain benzoxazine / epoxy resin / graphene oxide Graphene oxide composite material intermediate.

[0045] Step 5, curing the benzoxazine / epoxy resin / graphene oxide composite material interm...

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Abstract

The invention provides a benzoxazine/epoxy resin/oxidized graphene composite material and a preparation method thereof. The ternary composite material has reduced solidification temperature and increased toughness. The preparation method comprises the following steps: a step 1: dissolving the oxidized graphene into a solvent for preparing a solution of oxidized graphene; a step 2: dissolving the benzoxazine and the epoxy resin into a solvent for preparing a solution of benzoxazine-epoxy resin; a step 3: adding the solution of benzoxazine-epoxy resin into the solution of oxidized graphene, uniformly dispersing the solution with stirring, and preparing a benzoxazine/epoxy resin/oxidized graphene mixture; a step 4: drying the benzoxazine/epoxy resin/oxidized graphene mixture to obtain a benzoxazine/epoxy resin/oxidized graphene composite material intermediate; a step 5: solidifying the benzoxazine/epoxy resin/oxidized graphene composite material intermediate, in order to obtain the benzoxazine/epoxy resin/oxidized graphene composite material.

Description

technical field [0001] The invention relates to a composite material and a preparation method thereof, in particular to a benzoxazine / epoxy resin / graphene oxide composite material and a preparation method thereof. Background technique [0002] Graphene is the first two-dimensional carbon atom crystal with a thickness of one atom realized, and it is also a filler for new nanocomposite materials with excellent performance. In recent years, graphene has caused a sensation in the chemical and physical circles because it turns two-dimensional materials from concept to reality. Graphene oxide is a two-dimensional nanocarbon material with abundant oxygen-containing groups on its surface. Graphene oxide is a sheet of graphite under the action of strong acid and strong oxidant, oxygen atoms enter the graphite layer to combine π electrons, and carbonyl, hydroxyl, carboxyl and carbon atoms in the carbon network are combined to form a covalently bonded graphite interlayer compound, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L79/04C08L63/00C08K9/00C08K3/04C08G73/06
CPCC08L79/04C08G73/06C08L2201/08C08L63/00C08K9/00C08K3/04
Inventor 王世强张春琪吴斌夏智峰单升升夏媛娇景录如
Owner SUZHOU TAIHU ELECTRIC ADVANCED MATERIAL CO LTD
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