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Preparation method of carbon nanotube modified fiber reinforced thermosetting resin-based prepreg

A carbon nanotube modification and carbon nanotube technology, which is applied in the field of preparation of carbon nanotube modified fiber reinforced thermosetting resin-based prepregs, can solve the problem that the compressive strength cannot be greatly improved and the mechanical properties of composite materials are improved. It can achieve the effect of high comprehensive mechanical properties, good repeatability, and improved transverse tensile strength

Pending Publication Date: 2021-06-18
SHANDONG NON METALLIC MATERIAL RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the disadvantage is that it is difficult to improve the performance of the resin matrix. After many efforts, the performance of the resin matrix can only be improved to a small extent, so that the mechanical properties of the composite material are not greatly improved, and the improvement in the performance of the resin matrix cannot be effectively transferred to the composite material. The compressive strength of the material itself cannot be greatly improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The 5000 ml beaker was placed in the heating sleeve, and the JJ-1 electric agitator was placed in the beaker, and the rotation speed was 60 rpm and the heating temperature of the heating sleeve was 110 ° C.

[0021] AFG-90MH of mass ratio of 50: 1 was mixed with a polyether sulfone resin PES toughening agent to prepare an epoxy resin composition, and 3000 g was weighed, and the beaker was added.

[0022] It is called CNTS, spare, 45.18 g of 70 μm, 15 nm in diameter.

[0023] 13.554 g of carbon nanotube resin dispersant JCCHDS, spare.

[0024] When the heating sleeve and the electric stirrer were activated. When the viscosity was 1.2 Pa · s, the added CNTS and JCCHDS were added, and the stirring was continued to the solution to present a black; after the solution temperature reached 110 ° C, stirring was stirred for 60 min, producing carbon nano Tube / epoxy resin presses.

[0025] The obtained carbon nanotube / epoxy resin presenced viscosity is 0.7 Pa · s, which is placed ...

Embodiment 2

[0031] The 5000 ml beaker was placed in the heating sleeve, and the JJ-1 electric agitator was placed in the beaker, and the fixed speed was 100 rpm and the heating temperature of the heating sleeve was 130 ° C.

[0032] AFG-90H of mass ratio of 100: 3 was mixed with a polyether sulfone resin PES toughening agent to prepare an epoxy resin composition, and 3000 g was weighed, and a beaker was added.

[0033] It is called CNTs for 75.3 g of 100 μm and 30 nm in diameter.

[0034] 60.24 g of carbon nanotube resin dispersant JCCHDS, spare.

[0035] When the heating sleeve and the electric stirrer were activated, when the viscosity was 1.3 Pa · s, the added CNTs and JCCHDS were added, and the stirring was continued to the solution to present a unilateral black; after the solution temperature reached 130 ° C, stirring was stirred for 60 min, producing carbon nano Tube / epoxy resin presses.

[0036] The obtained carbon nanotube / epoxy resin presenced viscosity is placed under the A30 hi...

Embodiment 3

[0042] The 5000 ml beaker was placed in the heating sleeve, and the JJ-1 electric agitator was placed in the beaker, and the speed of 80 rpm was set, and the heating temperature of the heating sleeve was 100 ° C.

[0043] BR6216 with a mass ratio of 25: 1 was prepared from a polyether sulfone resin PES toughening agent to be a phenolic resin composition, weighed 3000 g, and added to a beaker.

[0044] It is called CNTs, 20 nm, 20 nm, and spare.

[0045] Take 15 g of carbon nanotube resin dispersant XFZ32, spare.

[0046] When the heating sleeve and the electric stirrer were activated. When the solution was heated to a viscosity of 1.0 Pa · s, the added CNTs and XFZ32 were added, and the stirring was continued to the solution to exhibit a uniform black; after the solution temperature reached 100 ° C, stirring was stirred for 45min, Carbon nanotube / phenolic resin presses.

[0047] The obtained carbon nanotube / phenolic resin presenced viscosity was 0.5 Pa · s, which was placed at...

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Abstract

The invention discloses a preparation method of a carbon nanotube modified fiber reinforced thermosetting resin-based prepreg. The carbon nanotube modified fiber reinforced thermosetting resin-based prepreg is prepared by mixing the carbon nanotubes and the thermosetting resin in proportion and then preparing the prepreg, and the prepreg has high comprehensive mechanical properties, especially high compression strength, and can effectively solve the problem of compression resistance when a composite material is used as a main bearing component; and meanwhile, the transverse tensile strength of the composite material can be improved, the mechanical property among composite material fibers is effectively improved, and the application range of the composite material on structural components requiring high bearing in three-dimensional and multi-dimensional directions is expanded. In addition, the preparation method has the advantages of being convenient to operate, good in repeatability and the like.

Description

Technical field [0001] The present invention relates to the field of composite preparation, and in more detail, it is directed to a method for preparing a carbon nanotube modified fiber reinforced thermosetting resin. Background technique [0002] With the continuous development of the composite, it is of great significance to use light and high-strength advanced resin matrix composite materials as the primary supporting component. The fiber one-way or two-dimensional fabric reinforced resin matrix composite composite composite is larger strength, larger stiffness, strong design resistance, anti-fatigue, corrosion resistance, and has replaced the traditional metal material in many fields. However, the high ratio of the composite material is mainly reflected in the fiber direction, and the mechanical properties between fibers are poor, and the damage between the fibers is an important destruction form and incentive of the composite material. It is also limited to the compressive s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/24C08L63/00C08L61/06C08L81/06C08L79/08C08K3/04C08K7/06C08K7/14
CPCC08J5/24C08J2363/00C08J2481/06C08K3/042C08K7/06C08K7/14C08J2361/06C08J2479/08
Inventor 张海云王丹勇李树虎魏化震刘方彪秦贞明张建芹徐井利贾华敏郭建芬王荣惠李文春刘岩高营营
Owner SHANDONG NON METALLIC MATERIAL RES INST
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