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Janus particle/epoxy resin composite material

A technology of epoxy resin and composite materials, which is applied in the field of Janus materials, can solve the problems affecting the performance of the matrix, achieve the effects of improving the toughness of the matrix, preventing the development of cracks, and improving the flame retardant performance

Inactive Publication Date: 2021-01-12
董燕飞
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, nano-silica is traditionally used to strengthen and toughen epoxy resin. Although solid nanoparticles can improve the mechanical properties and thermal stability of epoxy resin at the same time, its agglomeration phenomenon and interface problems will affect the performance of the matrix.

Method used

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  • Janus particle/epoxy resin composite material
  • Janus particle/epoxy resin composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A kind of Janus particle / epoxy resin composite material, specifically comprises the steps:

[0026] S1: Add polystyrene and polydivinylbenzene mixed powder with a mass ratio of 0.36:0.64 into deionized water, wherein the mass volume ratio of the mixed powder to deionized water is 1g:15mL, and then add aluminum oxide, Wherein the mass ratio of polydivinylbenzene and aluminum oxide is 1:0.24, ultrasonic dispersion, then add azobisisobutyronitrile, wherein the mass ratio of azobisisobutyronitrile and polydivinylbenzene is 1: 100, after ultrasonic stirring for 3 hours, prepare for the next step.

[0027] S2: adding the mixture in step S1 to a 5% sodium dodecylbenzenesulfonate aqueous solution, wherein the volume ratio of the mixture to the sodium dodecylbenzenesulfonate aqueous solution is 1g:4mL, ultrasonically dispersed, Then add γ-methacryloxypropyl trimethoxysilane, wherein the mass ratio of the mixture and γ-methacryloxypropyltrimethoxysilane is 1:0.3, and then dropwi...

Embodiment 2

[0030] A kind of Janus particle / epoxy resin composite material, specifically comprises the steps:

[0031] S1: Add the mixed powder of polystyrene and polydivinylbenzene with a mass ratio of 0.44:0.72 to deionized water, wherein the mass volume ratio of the mixed powder to deionized water is 1g:20mL, and then add aluminum oxide, wherein The mass ratio of polydivinylbenzene and aluminum oxide is 1:0.32, ultrasonic dispersion, and then add azobisisobutyronitrile, wherein the mass ratio of azobisisobutyronitrile and polydivinylbenzene is 1:120 , after ultrasonic stirring for 3 h, it was prepared for use in the next step.

[0032] S2: adding the mixture in step S1 to an aqueous solution of sodium dodecylbenzenesulfonate with a mass fraction of 8%, wherein the volume ratio of the mixture to the aqueous solution of sodium dodecylbenzenesulfonate is 1g:7mL, ultrasonically dispersed, Then add γ-methacryloxypropyl trimethoxysilane, wherein the mass ratio of the mixture to γ-methacrylo...

Embodiment 3

[0035] A kind of Janus particle / epoxy resin composite material, specifically comprises the steps:

[0036] S1: Add the mixed powder of polystyrene and polydivinylbenzene with a mass ratio of 0.4:0.68 to deionized water, wherein the mass volume ratio of the mixed powder to deionized water is 1g:16mL, and then add aluminum oxide, wherein The mass ratio of polydivinylbenzene and aluminum oxide is 1:0.28, ultrasonic dispersion, and then add azobisisobutyronitrile, wherein the mass ratio of azobisisobutyronitrile and polydivinylbenzene is 1:110 , after ultrasonic stirring for 3 h, it was prepared for use in the next step.

[0037] S2: Add the mixture in step S1 to a 6% sodium dodecylbenzenesulfonate aqueous solution, wherein the volume ratio of the mixture to the sodium dodecylbenzenesulfonate aqueous solution is 1g:5mL, ultrasonically disperse, Then add γ-methacryloxypropyl trimethoxysilane, wherein the mass ratio of the mixture to γ-methacryloxypropyltrimethoxysilane is 1:0.33, ...

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Abstract

The invention discloses a Janus particle / epoxy resin composite material which is prepared by the following steps: adding mixed powder of polystyrene and polydivinylbenzene into deionized water, then adding aluminum oxide, conducting ultrasonic dispersing, then adding azodiisobutyronitrile, conducting ultrasonic stirring, then adding a formed solution into a sodium dodecyl benzene sulfonate aqueoussolution, conducting ultrasonic dispersing, adding gamma-methacryloyloxypropyltrimethoxysilane into epoxy resin, dropwise adding an alkaline substance to adjust the pH value to 9, conducting heatingfor reaction, conducting cooling and centrifuging, conducting washing with an absolute ethyl alcohol solution for three times to obtain Janus microsphere particles, adding the Janus microsphere particles into epoxy resin, adding a curing agent, conducting heating and stirring, pouring a formed mixture into a preheated mold, conducting curing for a period of time, and conducting cooling to obtain the Janus particle / epoxy resin composite material. The Janus particle / epoxy resin composite material effectively prevents crack development on an interface, so that the mechanical property of the prepared composite material is improved.

Description

technical field [0001] The invention belongs to the technical field of Janus materials, and in particular relates to a Janus particle / epoxy resin composite material. Background technique [0002] Epoxy resin has high strength, good adhesion, excellent thermal properties and chemical corrosion resistance, and is widely used in aerospace, electronic sealing, coatings, etc. However, its high degree of crosslinking makes it poor in weather resistance, brittle, and poor in impact performance, which limits its application, so the toughening modification of epoxy resin has always been a research hotspot. Rubber elastomer and thermoplastic resin toughened epoxy resin have been studied earlier, and the toughening effect is obvious, but the introduction of flexible segments will reduce the modulus of the material. Solid particle toughened epoxy resin can improve its mechanical properties and thermal stability at the same time, but its agglomeration phenomenon and interface problems w...

Claims

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Application Information

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IPC IPC(8): C08L63/00C08L51/00C08K3/22C08F257/02C08F257/00C08F230/08
CPCC08F257/00C08F257/02C08K2003/2227C08L63/00C08L2205/20C08L2207/53C08L51/003C08K3/22C08F230/085
Inventor 董燕飞
Owner 董燕飞
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