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Method for enhancing properties of epoxy-resin-base fiber composite material

A technology of fiber composite materials and epoxy resin, which is applied in the field of improving the performance of epoxy resin-based fiber composite materials, can solve the problems of inability to endow composite materials with functional characteristics, unfavorable cost compression, large-scale production, low thermal conductivity, electrical conductivity, etc., to achieve The effect of good mechanical properties, low cost, and good bending properties

Active Publication Date: 2016-10-26
HEFEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, such inorganic silicate minerals usually have low thermal conductivity and electrical conductivity, and such fillers are used as modifiers to modify composite materials, which cannot impart certain functional properties to composite materials
A lot of research also includes adding some carbon-based materials such as carbon nanotubes, carbon nanofibers, graphene, etc. to the epoxy resin matrix. Due to the unique structural characteristics of carbon-based materials, they have excellent mechanical properties, electrical conductivity and thermal conductivity. performance, but the biggest problem with this type of packing is that it is expensive, which is not conducive to cost reduction and large-scale production

Method used

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  • Method for enhancing properties of epoxy-resin-base fiber composite material
  • Method for enhancing properties of epoxy-resin-base fiber composite material
  • Method for enhancing properties of epoxy-resin-base fiber composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0076] (1) Weigh 4.0 g of sieved halloysite and place it in a beaker, add 2 g of ground microcrystalline cellulose, add 80 mL of deionized water and stir magnetically for 1 hour to obtain a mixture; Catalyst ferrous ammonium sulfate hexahydrate with 0.5% mass of material, continue to stir for 10 min, then transfer to a 100 mL hydrothermal reactor, and react at 220°C for 24 h; after cooling, take out the product and wash it alternately with deionized water and ethanol until pH = 7 , dried and ground to prepare the halloysite / carbon nanocomposite material.

[0077] (2) A total of 13.87g of epoxy resin E-51 was weighed, placed in an oven and heated at 70°C; the addition ratio was 3wt% (accounting for the ratio of halloysite / carbon nanocomposite material and epoxy resin, curing agent mass sum ) halloysite / carbon nanocomposite material was dispersed in 10mL of acetone, then added to the epoxy resin matrix, stirred for 24 hours and then placed in a vacuum drying oven to remove aceto...

Embodiment 2

[0082] (1) Weigh 4.0 g of sieved halloysite and place it in a beaker, add 2 g of ground microcrystalline cellulose, add 80 mL of deionized water and stir magnetically for 1 hour to obtain a mixture; Catalyst ferrous ammonium sulfate hexahydrate with 0.5% mass of material, continue to stir for 10 min, then transfer to a 100 mL hydrothermal reactor, and react at 220°C for 24 h; after cooling, take out the product and wash it alternately with deionized water and ethanol until pH = 7 , dried and ground to prepare the halloysite / carbon nanocomposite material.

[0083] (2) Weigh 14.85g of epoxy resin E-51, place it in an oven and heat it at 70°C; the addition ratio will be 3wt% (accounting for the ratio of halloysite / carbon nanocomposite material and epoxy resin, curing agent mass sum ) halloysite / carbon nanocomposite material was dispersed in 10mL of acetone, then added to the epoxy resin matrix, stirred for 24 hours and then placed in a vacuum drying oven to remove acetone by vacu...

Embodiment 3

[0088] (1) Weigh 4.0 g of sieved halloysite and place it in a beaker, add 2 g of ground fructose, add 80 mL of deionized water and stir magnetically for 1 hour to obtain a mixture; % catalyst ammonium ferrous sulfate hexahydrate, continue to stir for 10min, then transfer to a 100mL hydrothermal reactor, and react at 220°C for 12h; after cooling, take out the product and alternately wash it with deionized water and ethanol until pH = 7, and dry it and grinding to prepare the halloysite / carbon nanocomposite material.

[0089] (2) Weigh a total of 14.85g of epoxy resin E-51, place it in an oven and heat it at 70°C; The halloysite / carbon nanocomposite was dispersed in 10mL of acetone, then added to the epoxy resin matrix, stirred for 24 hours, then placed in a vacuum oven to remove the acetone; Add 4.01 g of methyl methane into the epoxy resin, place it again in a vacuum drying oven to evacuate, remove excess acetone and air bubbles, and obtain a coating material.

[0090] (3) C...

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Abstract

The invention discloses a method for enhancing properties of an epoxy-resin-base fiber composite material. The method is characterized in that an epoxy resin is used as the epoxy-resin-base fiber composite material, and a continuous fiber male fabric is used as reinforcing fibers; and a halloysite / carbon nano composite material is uniformly dispersed in the epoxy resin base of the epoxy-resin-base fiber composite material to prepare the halloysite / carbon-modified epoxy-resin-base fiber composite material, thereby improving the interface combination between the epoxy resins and fibers, and enhancing the properties of the epoxy-resin-base fiber composite material. By using the halloysite / carbon nano composite material as the additive, the halloysite and carbon layer can better implement the synergistic effect, thereby performing the better functions of transferring stress between the bases and between the base and fiber reinforcer and establishing a heat-conducting network; and under the interface combination action between the reinforcing fibers and resin, the epoxy-resin-base fiber composite material has favorable bending property and heat-conducting property.

Description

technical field [0001] The invention relates to a method for improving the performance of epoxy resin-based fiber composite materials. Background technique [0002] With the development of science and technology and industrial progress, electronic appliances and electronic equipment components have higher and higher requirements for thin-walled, lightweight and miniaturized materials, so higher requirements are also put forward for the strength and heat dissipation of materials. Due to its high specific strength, high specific modulus, corrosion resistance and strong designability, epoxy resin-based fiber composite materials are increasingly replacing metal materials and developing rapidly in various industries. This type of composite material is usually composed of reinforcing fibers and an epoxy resin matrix. The reinforcing fibers can be mixed with one or more of glass fibers, basalt fibers, carbon fibers or aramid fibers to reinforce the epoxy resin matrix; The performa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/00C08K3/34C08K3/04C08K7/26C08K7/00C08K9/10C08K7/10C08K7/06C08K7/14C08J5/04
CPCC08J5/042C08J5/043C08J2363/00C08K3/04C08K3/346C08K7/00C08K7/06C08K7/10C08K7/14C08K7/26C08K9/10C08K2201/011C08J5/0405C08L63/00
Inventor 吴雪平赵军帅代建建钱立兵张先龙李宁
Owner HEFEI UNIV OF TECH
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