Carbon Fiber Foam Core Sheets
Carbon Fiber Foam Core Sheets
Carbon Fiber Foam Core Sheets
Carbon Fiber Foam Core Sheets
Carbon Fiber Foam Core Sheets
Carbon Fiber Foam Core Sheets

Carbon Fiber Foam Core Sheets

The upper surface of the 3mm and 4mm foam thickness samples has slight indentations and no visible damage; with the increase of the sandwich thickness, the impact resistance of these carbon fiber foam core sheets becomes better, and under 5J conditions, the foam sandwich thickness of 3mm can resist most external impacts.

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Product Introduction

Carbon Fiber Foam Core Sheets

01.

Appearance and load-bearing capacity

The surface of the panel has clear and neat lines, no random lines, a smooth surface, no impurities, white spots, scratches, pits, pinholes, and other visible defects. After the rated load of 2158N (220Kg) is evenly applied to the bed panel, the deformation of the bed panel is ≤4mm. The same load is applied to a smaller area in the middle of the bed panel, and there is no tendency for permanent deformation. When a load of up to 8633N (880Kg) is evenly applied to the entire panel, there is no sign of damage to the bed panel structure, and the structural performance is very stable.

02.

Aluminum equivalent determination

The thickness of the entire carbon fiber foam sandwich panel is 15mm, and the aluminum equivalent is only 0.05/mm, which is only 11% of the aluminum plate, much lower than traditional medical bed boards such as plywood and polycarbonate boards, and also lower than the phenolic resin panels of the same model. The X-ray transmittance performance is much higher than similar products at home and abroad.

01.

Photographic imaging quality

The resolution of the X-ray system using this panel is 4.01LP/mm, which meets the imaging resolution requirements of the medical equipment system for this panel. After the X-ray film was taken, the film was inspected under a special fluorescent lamp. There was no visible shadow to the naked eye. After magnification, no impurities with a diameter greater than 0.3mm were found, which fully met the relevant photographic index requirements.

The damage of these Carbon Fiber Foam Core Sheets after impact is divided into three modes

1.The foam core thickness is thin 2.0mm. The damage to the upper skin of the specimen is mainly manifested as obvious bending deformation, the skin splits at the stress concentration, and slight pits are produced. The fiber and the matrix are debonded, and the lower skin and the upper skin are completely delaminated. There is no visually visible damage to the lower skin.

2. The foam core thickness is moderate at 3.0mm. The buffer distance of the foam composite material board is increased, the upper skin has no visually visible damage, the matrix cracks at the stress concentration, the fiber, and the matrix are debonded, the lower skin and the upper skin are partially delaminated, and there is no visually visible damage to the lower skin.

3. The foam core is 4.0mm thick, the foam composite material board has a long buffer distance, the upper skin has no visible damage, the matrix cracks at the stress concentration point, the fiber and the matrix are debonded, and the lower skin has no visible damage. Under 5J energy, the 2mm foam thickness sample cannot withstand 5J energy and delamination occurs.

Practical advantages

1. Appearance and bearing capacity:

2. Aluminum equivalent determination:

3. Photographic imaging quality:

The X-ray system resolution of the panel is 4.01LP/mm, which meets the imaging resolution requirements of the medical/treatment equipment system for the panel. After the X-ray film was taken, the film was inspected under a special fluorescent lamp, and no shadows were visible to the naked eye. After magnification, no impurities with a diameter greater than 0.3mm were found, which fully met the relevant photographic index requirements.

The foam sandwich panel consists of the following layers

·Transparent high-gloss surface gel coat

·2/2 twill 3K carbon fiber cloth

·One layer of alkali-free glass fiber cloth

·5mm thick foam core

·One layer of alkali-free glass fiber cloth

·Transparent high-gloss surface gel coat

·Total thickness 5.85mm (+/-0.2mm); about 2.71kg/㎡.

Common specifications of Carbon Fiber Foam Core Sheets

Tensile modulus at 0/90°	6610	GPa
Tensile modulus at 45°	2060	GPa
Tensile strength at 0/90°	71.4	MPa
Tensile strength at 45°	36.7	MPa
Elongation at break at 0/90°	2.64	%
Elongation at break at 45°	24.2	%
Young's modulus at 0/90	9.52	GPa
Compressive strength	1.33	MPa
Compression modulus	72.5	GPa
Core absolute strength	1.09	MPa
Core shear modulus	27.75	MPa
Density	2.71	MPa
Core thermal conductivity at room temperature	0.033	kg/m3
Maximum water absorption	37.5	W/m·K

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