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A kind of winding forming carbon nanotube reinforced composite material forming method

A technology for reinforcing composite materials and carbon nanotubes, which is applied in the field of composite material molding, can solve the problems of sacrificing reinforcing fibers and the overall efficiency of composite materials, low transverse strength, and limited wide application, so as to improve in-plane mechanical properties and improve mechanical properties. , the effect of good process stability

Inactive Publication Date: 2016-03-23
NO 53 RES INST OF CHINA NORTH IND GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Resin-based fiber-reinforced composite materials have the advantages of high specific strength, high specific stiffness, strong designability, fatigue resistance, and corrosion resistance. It can be seen that its high rigidity is mainly reflected in the direction of continuous fibers. Because the fibers are connected by resin, the connection rigidity is very low. Therefore, fiber-reinforced composite materials have the disadvantage of low transverse strength between layers and in-plane perpendicular to the fiber direction. Delamination resistance and impact resistance are weak. Through multi-directional layup, wrapping and multi-dimensional weaving design, although the overall interlayer and transverse performance of the composite material can be improved, the overall efficiency of the reinforcing fiber and the composite material is sacrificed, which limits its performance. further wide application

Method used

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  • A kind of winding forming carbon nanotube reinforced composite material forming method
  • A kind of winding forming carbon nanotube reinforced composite material forming method
  • A kind of winding forming carbon nanotube reinforced composite material forming method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A product with a length of 50 cm, an inner diameter of 10 cm and an outer diameter of 12 cm was prepared by the hoop winding method.

[0016] The reinforcing material used is 352 glass fiber roving. Bake it for 24 hours at 70 degrees.

[0017] Prepare an epoxy resin glue solution with a viscosity of 1.6Pa·s at room temperature, and pour the prepared glue solution into the glue tank.

[0018] like figure 1 As shown, between the rubber groove of the winding machine and the mandrel, on one side of the dipped yarn bundle 1 and 10cm away from it, a V-3 spray gun is set, the nozzle diameter is 0.5mm, and the outlet pressure is 0.2MPa. The tank is filled with single-walled carbon nanotubes 2 with an outer diameter of about 10nm and a length of 30-100μm, mixed with acetone and TNEDIS dispersant, and subjected to ultrasonic waves with a power of 200w for 2 hours to uniformly disperse them to form 0.1mg / ml suspension.

[0019] Put the heat-treated glass fiber yarn into the wi...

Embodiment 2

[0022] A product with a length of 50 cm, an inner diameter of 10 cm and an outer diameter of 12 cm was prepared by the hoop winding method.

[0023] The reinforcing material used is 352 glass fiber roving. Bake it for 24 hours at 70 degrees.

[0024] Prepare an unsaturated polyester resin glue solution with a viscosity of 1.2 Pa·s at room temperature, and pour the prepared glue solution into the glue tank of the winding device.

[0025] like figure 2 As shown, between the rubber groove of the winding device and the mandrel, at a distance of 15cm from one side of the dipped yarn bundle 1, a DPQ-T-95 ultrasonic spray head with a power of 10W is installed, and the storage tank connected to it is filled with external The multi-walled carbon nanotubes 2 with a diameter of about 10nm, an inner diameter of about 2nm, and a length of about 12μm are mixed with acetone and TNEDIS dispersant, and 0.1mg / ml is formed after being uniformly dispersed by ultrasonic waves with a power of 20...

Embodiment 3

[0029] A product with a length of 50 cm, an inner diameter of 10 cm and an outer diameter of 12 cm was prepared by the hoop winding method.

[0030] The reinforcing material used is 352 glass fiber roving. Bake it for 24 hours at 70 degrees.

[0031] Prepare an unsaturated polyester resin glue solution with a viscosity of 1.2 Pa·s at room temperature, and pour the prepared glue solution into the glue tank of the winding device.

[0032] like image 3 As shown, between the rubber tank of the winding device and the mandrel, at a distance of 8cm from both sides of the dipped yarn bundle 1, a V-3 spray gun is symmetrically arranged, the nozzle diameter is 0.5mm, and the outlet pressure is 0.3MPa. The storage tank contains a suspension of single-walled carbon nanotubes 2 with an outer diameter of about 10 nm and a length of about 30-100 μm uniformly dispersed in chloroform, and the weight content of the suspension is 0.1%. An electric field device 3 is set between the ultrasonic...

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Abstract

The present invention discloses a winding formed carbon nanotube reinforced composite forming method and an apparatus used in the method. In the winding process, a carbon nanotube release device is placed between a groove and a mandrel of a winding device at one side of an impregnation yarn bundle. When the impregnation yarn bundle passes, the carbon nanotube release device releases carbon nanotubes towards the side of the impregnation yarn bundle. The carbon nanotubes adhere to the boundary surface of the yarn bundle after moving a distance. The yarn bundle is then wound onto the mandrel to solidify and form. The composite material product prepared by the method can effectively enhance border, in-plane and interlaminar mechanical strength. In addition, the winding formed carbon nanotube reinforced composite forming method is good in technical stability, easy to control, suitable for wet winding process. The apparatus provided by the present invention is simple in structure, low in investment, and easy to use.

Description

technical field [0001] The invention relates to a composite material forming method, in particular to a winding forming carbon nanotube reinforced composite material forming method. Background technique [0002] Resin-based fiber-reinforced composite materials have the advantages of high specific strength, high specific stiffness, strong designability, fatigue resistance, and corrosion resistance. It can be seen that its high rigidity is mainly reflected in the direction of continuous fibers. Because the fibers are connected by resin, the connection rigidity is very low. Therefore, fiber-reinforced composite materials have the disadvantage of low transverse strength between layers and in-plane perpendicular to the fiber direction. Delamination resistance and impact resistance are weak. Through multi-directional layup, wrapping and multi-dimensional weaving design, although the overall interlayer and transverse performance of the composite material can be improved, the overal...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C70/32
Inventor 陈以蔚秦贞明王丹勇魏化震郑志才徐井利李树虎贾华敏
Owner NO 53 RES INST OF CHINA NORTH IND GRP
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