A hollow fiber-reinforced resin composite material hollow sphere and its preparation method

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, convenient operation and low rotation speed

Active Publication Date: 2018-07-06
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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  • A hollow fiber-reinforced resin composite material hollow sphere and its preparation method
  • A hollow fiber-reinforced resin composite material hollow sphere and its preparation method

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] The drum with an inclination angle of 15° to the ground is heated up to 35°C, and the steam-expanded foamed polystyrene pellets are transported into the drum, and the rotational speed is controlled at 100 rpm, and then the pre-mixed liquid epoxy resin is mixed with Add the TETA mixture into the drum and evenly coat the surface of the polystyrene ball. After 1 minute, add carbon fiber to make it evenly adhere to the surface of the ball, and cure it at 35° for 45 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 Within ...

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 transferred into the roller, and the rotational speed is controlled at 10 rpm, and then the pre-mixed liquid epoxy resin is mixed with Add the TEPA mixture into the drum and evenly coat the surface of the polystyrene ball. After 5 minutes, add wollastonite fiber to make it evenly adhere to the surface of the ball. Curing at 70° for 15 minutes; repeat this coating step for more After every 3-5 layers of solidification, take it out and measure its density until the measured polystyrene pellets reach a targ...

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] The temperature of the roller with an inclination angle of 25° to the ground is raised to 40°C, and the steam-expanded foamed polystyrene balls are transferred into the roller, and the speed is controlled at 10 rpm, and then the pre-mixed liquid epoxy resin is mixed with Add the IPD mixture into the drum and evenly coat the surface of the polystyrene ball. After 3 minutes, add glass fiber to make it evenly adhere to the surface of the ball. Curing at 40° for 30 minutes; repeat this coating step several times, After every 3-5 layers are cured, take it out and measure its density until the measured polystyrene pellets have a target density of 100 – 600k...

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Abstract

The invention relates to a hollow sphere of fiber-reinforced resin composite material and a preparation method thereof. It uses steam-expanded and foamed polystyrene balls as the spherical core of the composite hollow ball, and the outer surface of the spherical core is uniformly coated with multi-layer fiber reinforced resin mixture from the inside to the outside until the ball reaches the target density. The reinforced resin mixture is composed of liquid epoxy resin, amine curing agent and reinforced fiber. The composite hollow sphere has a nominal diameter of 2.0-50.0mm, a wall thickness of 0.5-2.5mm, and a density of 100-600 kg / m3. The hollow ball of the present invention has simple raw materials, simple preparation process and convenient operation. The obtained hollow ball can be combined with artificial composite foam resin to make a composite buoyancy material for use in underwater equipment, especially for riser 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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Patent Type & Authority Patents(China)
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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