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Fiber-reinforced resin composite material hollow ball and preparation method thereof

A fiber-reinforced resin and composite material technology, which is applied in the field of fiber-reinforced resin composite hollow spheres and its preparation, can solve the problems of unsatisfactory density and specific strength, and achieve the effects of simple preparation process, low speed and convenient operation

Active Publication Date: 2015-11-11
TAIZHOU CBM FUTURE NEW MATERIALS S & T CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its properties such as density and specific strength (strength divided by density) cannot meet the requirements of deep-sea oil drilling and production equipment

Method used

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  • Fiber-reinforced resin composite material hollow ball and preparation method thereof
  • Fiber-reinforced resin composite material hollow ball and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Example 1: Preparation of fiber-reinforced resin composite hollow spheres

[0026] With 1 cubic meter of steam-expanded and foamed polystyrene balls as the spherical core, the weight of each layer of liquid epoxy resin is 2KG, TETA is 0.4KG, and carbon fiber is 3KG. The preparation process is as follows:

[0027] Raise the temperature of the roller with an inclination angle of 15° to the ground to 35°C, transfer the steam-expanded and foamed polystyrene pellets into the roller, and control the speed at 100rpm, and then mix the pre-mixed liquid epoxy resin with TETA Put the mixed solution into the drum and evenly coat the surface of polystyrene pellets. After 1 minute, add carbon fiber to make it evenly adhere to the surface of the pellets, and cure at 35° for 45 minutes; repeat this coating step several times, each curing After 3-5 layers, take it out and measure its density until the measured polystyrene pellets have a target density of 100–600kg / m 3 Within the scope,...

Embodiment 2

[0028] Example 2: Preparation of fiber-reinforced resin composite hollow spheres

[0029] With 1 cubic meter of steam-expanded and foamed polystyrene balls as the spherical core, the weight of each layer of liquid epoxy resin is 5KG, TEPA is 0.5KG, and wollastonite fiber is 5KG. The preparation process is as follows:

[0030] The temperature of the roller with an inclination angle of 30° to the ground is raised to 70°C, and the steam-expanded and foamed polystyrene pellets are transported into the roller, and the speed is controlled at 10rpm, and then the pre-mixed liquid epoxy resin and TEPA Put the mixed solution into the drum and evenly coat the surface of the polystyrene pellets. After 5 minutes, add wollastonite fiber to make it evenly adhere to the surface of the pellets. Curing at 70° for 15 minutes; repeat this coating step several times After every 3-5 layers of solidification, take it out and measure its density until the measured polystyrene pellets are in the targe...

Embodiment 3

[0031] Example 3: Preparation of hollow spheres of fiber-reinforced resin composites

[0032] With 1 cubic meter of steam-expanded and foamed polystyrene balls as the spherical core, the weight of each layer of liquid epoxy resin is 3KG, the IPD is 0.5KG, and the glass fiber is 8KG. The preparation process is as follows:

[0033] Raise the temperature of the roller with an inclination angle of 25° to the ground to 40°C, transfer the steam-expanded and foamed polystyrene pellets into the roller, and control the speed at 10rpm, and then mix the pre-mixed liquid epoxy resin with IPD Add the mixed solution into the drum and evenly coat the surface of the polystyrene pellets. After 3 minutes, add glass fiber to make it evenly adhere to the surface of the pellets, and cure at 40° for 30 minutes; repeat this coating step several times, each After curing 3-5 layers, take it out and measure its density until the measured polystyrene pellets have a target density of 100–600kg / m 3 Withi...

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Abstract

The invention relates to a fiber-reinforced resin composite material hollow ball and a preparation method thereof. According to the fiber-reinforced resin composite material hollow ball, a small polystyrene ball which is expanded and foamed through steam serves as a spherical core of the composite material hollow ball, and the outer surface of the spherical core is evenly coated with a plurality of layers of fiber-reinforced resin mixtures from inside to outside until the small ball reaches the targeted density. The fiber-reinforced resin mixtures are formed by mixing liquid state epoxy resin, amine curing agents and reinforced fibers. The nominal diameter of the composite material hollow ball is 2.0-50.0 mm, the wall thickness is 0.5-2.5 mm, and the density is 100-600 kg / m<3>. The raw materials of the hollow ball are simple, the preparation technology is simple, and operation is convenient. The obtained hollow ball can be combined with artificial composite foamed resin to be made into composite buoyancy materials to be applied to underwater equipment, and particularly applied to vertical tube buoyancy modules.

Description

technical field [0001] The invention belongs to the technical field of hollow spheres of composite materials, and in particular relates to a hollow sphere of fiber-reinforced resin composite material and a preparation method thereof. Background technique [0002] Artificial syntactic foam resin has been used as a buoyancy sheet for underwater equipment (such as ROV and AUV, etc.) for a long time. However, its properties such as density and specific strength (strength divided by density) cannot meet the requirements of deep-sea oil drilling and production equipment. Adding composite hollow spheres to synthetic foam can greatly reduce the density of the material and effectively maintain its strength, making it suitable for applications such as drilling riser buoyancy materials, distributed buoyancy materials, thermal insulation and impact resistance materials. Contents of the invention [0003] In view of the above-mentioned problems existing in the prior art, the object of...

Claims

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Application Information

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IPC IPC(8): C08J9/42C08J9/34C08L63/00C08K7/06C08K7/10C08K7/14C08G59/50
Inventor 黄辉蒋蕾
Owner TAIZHOU CBM FUTURE NEW MATERIALS S & T CO LTD
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