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Toughened epoxy-resin-based glass fiber composite material and preparation method thereof

A tough epoxy resin and composite material technology, applied in chemical instruments and methods, synthetic resin layered products, glass/slag layered products, etc., can solve the problems of low impact strength, reduce the tensile strength of composite materials, etc. Strong impact resistance, avoids the reduction of tensile strength, good dispersion effect

Active Publication Date: 2017-03-08
广东丙辛新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved in the present invention is: the impact strength of the epoxy resin composite material in the prior art is low, and the existing toughening modification method will reduce the tensile strength of the composite material To solve the technical problems, provide a toughened epoxy resin-based glass fiber composite material with good toughness and will not reduce the tensile strength of the material and its preparation method

Method used

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  • Toughened epoxy-resin-based glass fiber composite material and preparation method thereof
  • Toughened epoxy-resin-based glass fiber composite material and preparation method thereof
  • Toughened epoxy-resin-based glass fiber composite material and preparation method thereof

Examples

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Effect test

Embodiment 1

[0041] A toughened epoxy resin-based fiberglass composite material comprising five composite material units, each composite material unit comprising an epoxy resin substrate layer and a glass fiber cloth placed on the epoxy resin substrate layer Lay-up, between every two composite material units, the epoxy resin substrate layer of one composite material unit is closely attached to the glass fiber cloth layer of the other composite material unit to superimpose to form the toughened epoxy resin-based glass fiber Composite material, the epoxy resin substrate includes the following components in parts by mass: 75 parts of epoxy resin EP-51, 25 parts of 593 curing agent and 8 parts of the liquid crystal material of the above formula 1.

[0042] A preparation method of a toughened epoxy resin-based glass fiber composite material is prepared by the following method:

[0043] 1) Weigh the following components by mass: 75 parts of epoxy resin EP-51, 25 parts of 593 curing agent and 8 p...

Embodiment 2

[0049] A toughened epoxy resin-based fiberglass composite material comprising five composite material units, each composite material unit comprising an epoxy resin substrate layer and a glass fiber cloth placed on the epoxy resin substrate layer Lay-up, between every two composite material units, the epoxy resin substrate layer of one composite material unit is closely attached to the glass fiber cloth layer of the other composite material unit to superimpose to form the toughened epoxy resin-based glass fiber Composite material, the epoxy resin substrate includes the following components in parts by mass: 80 parts of epoxy resin EP-51, 20 parts of DDM and 3 parts of the liquid crystal material of the above formula 1.

[0050] A preparation method of a toughened epoxy resin-based glass fiber composite material is prepared by the following method:

[0051] 1) Weigh the following components by mass: 80 parts of epoxy resin EP-51, 20 parts of DDM and 3 parts of the liquid crystal...

Embodiment 3

[0057] A toughened epoxy resin-based fiberglass composite material comprising five composite material units, each composite material unit comprising an epoxy resin substrate layer and a glass fiber cloth placed on the epoxy resin substrate layer Lay-up, between every two composite material units, the epoxy resin substrate layer of one composite material unit is closely attached to the glass fiber cloth layer of the other composite material unit to superimpose to form the toughened epoxy resin-based glass fiber Composite material, the epoxy resin substrate includes the following components in parts by mass: 70 parts of epoxy resin EP-51, 30 parts of DDM and 5 parts of the liquid crystal material of the above formula 1.

[0058] A preparation method of a toughened epoxy resin-based glass fiber composite material is prepared by the following method:

[0059] 1) Weigh the following components by mass: 70 parts of epoxy resin EP-51, 30 parts of DDM and 5 parts of the liquid crystal...

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Abstract

The invention provides a toughened epoxy-resin-based glass fiber composite material and a preparation method thereof, wherein the composite material comprises at least one composite material unit, each composite material unit comprises an epoxy resin substrate layer and a glass fiber cloth laying layer, the glass fiber cloth laying layer is laid on the epoxy resin substrate layer, the epoxy resin substrate layer comprises the following components by mass: 40 to 90 parts of epoxy resin, 20 to 80 parts of a curing agent and 1 to 25 parts of a toughening agent; and the toughening agent is one or more substance of a liquid crystal material, nano silica and TPU. According to the number of the composite material units containing in the composite material to be prepared by the method, the epoxy resin substrate layer and glass fiber are alternately coated or laid to prepare the toughened epoxy-resin-based glass fiber composite material. Compared with the prior pure epoxy resin based glass fiber composite material, the impact strength of the toughened epoxy-resin-based glass fiber composite material is increased by 17% to 35%, and the tensile strength is not reduced.

Description

technical field [0001] The invention belongs to the technical field of glass fiber composite materials, and in particular relates to a toughened epoxy resin-based glass fiber composite material and a preparation method thereof. Background technique [0002] Epoxy resin-based glass fiber composites have excellent mechanical properties, corrosion resistance and chemical stability; small volume shrinkage during processing; low cost and other outstanding advantages. Therefore, it is widely used in construction, communication and transportation, sports equipment, electronic appliances, aerospace and other fields. Due to the implementation of energy saving and emission reduction on a global scale, the greenhouse effect is solved. The application of composite materials in large aircraft, wind power blades, auto parts, oil extraction sucker rods, power transmission cables and other fields will promote the realization of energy saving and emission reduction. For the use of automobi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B17/02B32B17/10B32B27/12B32B27/38B32B27/20B32B33/00B32B37/15B32B38/16C08L63/00C08L67/00C08K3/36
CPCB32B5/02B32B17/10064B32B27/12B32B27/20B32B27/38B32B33/00B32B37/15B32B38/164B32B2262/101B32B2307/558C08K2201/011C08L63/00C08L2205/06C08L67/00C08K3/36
Inventor 李又兵周桦林杨朝龙夏天盛旭敏张攀赵利亚李查
Owner 广东丙辛新材料有限公司
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