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Polymer matrix composite material containing filler particle three-dimensional network and preparation method thereof

A technology of filler particles and three-dimensional network, which is applied in the field of polymer-based composite materials and its preparation, can solve the problems of insufficient performance improvement of composite materials

Active Publication Date: 2018-07-06
SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the polymer-based composite material of the present invention, the filler particles form a stable and continuous three-dimensional network of filler particles, and the polymer is filled in the voids of the three-dimensional network of filler particles. By improving the internal structural characteristics of the composite material, a three-dimensional connection is established. Filler-filled composite materials replace discrete composite materials prepared by traditional mixing methods, which can solve the problem of insufficient performance improvement of composite materials due to interfacial effects

Method used

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  • Polymer matrix composite material containing filler particle three-dimensional network and preparation method thereof
  • Polymer matrix composite material containing filler particle three-dimensional network and preparation method thereof
  • Polymer matrix composite material containing filler particle three-dimensional network and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0095] A polymer-based composite material comprising a three-dimensional network of filler particles, the polymer-based composite material comprising a barium titanate three-dimensional network composed of barium titanate filler particles, and rings filled in the voids of the barium titanate three-dimensional network oxygen resin.

[0096] Preparation:

[0097] (1) 15g of barium titanate filler particles with a particle size of 100nm were added to 60ml of cellulose aqueous solution with a concentration of 1wt% to obtain a dispersion;

[0098] (2) ball mill the dispersion at a speed of 400 rpm for 24 hours, then put the ball milled product into a mold, and freeze-dry at -40°C for 48 hours to obtain a three-dimensional network precursor;

[0099] (3) Treat the three-dimensional network precursor at a high temperature of 1000°C for 10 hours, remove the cellulose in the three-dimensional network precursor, and obtain a barium titanate three-dimensional network composed of barium ...

Embodiment 2

[0106] A polymer-based composite material comprising a three-dimensional network of filler particles, the polymer-based composite material comprising a barium titanate three-dimensional network composed of barium titanate filler particles, and rings filled in the voids of the barium titanate three-dimensional network oxygen resin.

[0107] Preparation:

[0108] (1) adding 30 g of barium titanate filler particles with a particle size of 100 nm into 60 ml of cellulose aqueous solution with a concentration of 1 wt % to obtain a dispersion;

[0109] (2) Ball mill the dispersion at a speed of 500 rpm for 18 hours, then put the ball milled product into a mold, and freeze-dry at -40°C for 48 hours to obtain a three-dimensional network precursor;

[0110] (3) Treat the three-dimensional network precursor at a high temperature of 1000°C for 10 hours, remove the cellulose in the three-dimensional network precursor, and obtain a barium titanate three-dimensional network composed of bari...

Embodiment 3

[0116] A polymer-based composite material comprising a three-dimensional network of filler particles, the polymer-based composite material comprising a barium titanate three-dimensional network composed of barium titanate filler particles, and rings filled in the voids of the barium titanate three-dimensional network oxygen resin.

[0117] Preparation:

[0118] (1) adding 60 g of barium titanate filler particles with a particle size of 100 nm into 60 ml of cellulose aqueous solution with a concentration of 1 wt % to obtain a dispersion;

[0119] (2) Ball mill the dispersion at a speed of 300 rpm for 18 hours, then put the ball milled product into a mold, and freeze-dry at -40°C for 48 hours to obtain a three-dimensional network precursor;

[0120] (3) Treat the three-dimensional network precursor at a high temperature of 1000°C for 10 hours, remove the cellulose in the three-dimensional network precursor, and obtain a barium titanate three-dimensional network composed of bari...

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Abstract

The invention discloses a polymer matrix composite material containing a filler particle three-dimensional network and a preparation method thereof. The polymer matrix composite material comprises thefiller particle three-dimensional network composed of filler particles and a polymer filled in the gaps of the filler particle three-dimensional network, the unique structure can well guarantee thatthe specific reinforcement effect of the filler particles with specific properties on the polymer matrix composite material can be brought into play, and the performance is far superior to discrete composite materials prepared by traditional methods. The method provided by the invention includes: firstly utilizing a support material to construct filler particles into a three-dimensional structure,then sintering the filler particles into a three-dimensional network continuous structure of filler at high temperature, removing the support material at high temperature, or further conducting acidtreatment after high temperature to remove the support material, and finally filling the filler forming the three-dimensional structure with the polymer material to form the polymer matrix composite material. The preparation method provided by the invention is simple, and is suitable for industrial production.

Description

technical field [0001] The invention belongs to the field of composite material preparation, and relates to a polymer-based composite material and a preparation method thereof, in particular to a polymer-based composite material containing a three-dimensional network of filler particles composed of filler particles and a preparation method thereof. Background technique [0002] Polymer materials refer to high-molecular-weight compounds formed by repeated connections of many identical and simple structural units through covalent bonds. According to the combination of selected structural units, polymer materials with excellent properties can be synthesized, such as high shear strength, high flexibility, high adhesion, chemical resistance, high heat resistance, high insulation, high breakdown strength wait. However, in some specific cases it is necessary to enhance certain properties of the polymer material. Such as polymers with a lower dielectric constant, such as high-dens...

Claims

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Application Information

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IPC IPC(8): C08L63/00C08K9/00C08K3/24C08K3/38C08K3/08
CPCC08K3/08C08K3/24C08K3/38C08K9/00C08K2003/0806C08K2003/385C08K2201/003C08K2201/011C08L63/00
Inventor 于淑会罗遂斌孙蓉
Owner SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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