Modularized wave-absorbing foam structure and preparation method thereof
A foam structure and modular technology, applied in the field of composite material molding, can solve the problems of affecting stealth performance and poor maintainability, and achieve the effect of improving maintainability and excellent stealth performance
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Embodiment 1
[0039] The total thickness of the product is 6mm, the thickness of single-layer PMI foam is 2mm, the wave-transmitting skin is QW100 quartz cloth prepreg, the conductive fiber mat is composed of chopped glass fiber and chopped carbon fiber, and the embedded part is EW180B glass cloth prepreg It is obtained by alternating layers with conductive fiber mats. The preparation steps are as follows:
[0040] 1) Cut the glass fiber cloth prepreg and a part of the conductive fiber mat according to the size of the embedded parts, and then carry out alternate layers to form the uncured embedded parts;
[0041] 2) Cut the foam, film, wave-transmitting skin and another part of the conductive fiber felt according to the size of the wave-absorbing foam structure product, cut out the holes of the same size as the embedded parts in the cut single-layer foam, and place the uncured The embedded parts are placed in the foam holes, and the embedded parts are placed in an equidistant array structu...
Embodiment 2
[0046] The same product as Example 1 was prepared, and the preparation steps were as follows:
[0047] 1) Cut the glass fiber cloth prepreg and a part of the conductive fiber mat according to the size of the embedded parts, and then carry out alternate layers to form the uncured embedded parts;
[0048] 2) Cut the foam, film, wave-transmitting skin and another part of the conductive fiber felt according to the size of the wave-absorbing foam structure product, cut out the holes of the same size as the embedded parts in the cut single-layer foam, and place the uncured The embedded parts are placed in the foam holes, and the embedded parts are placed in an equidistant array structure, that is, the embedded parts are arranged at equal distances in both the horizontal and vertical directions, and the spacing is 80-100mm.
[0049] 3) Finally, the single-layer foam on which the embedded parts are laid, the cut film, the conductive fiber felt and the quartz cloth skin are alternately...
Embodiment 3
[0053] The same product as Example 1 was prepared, and the preparation steps were as follows:
[0054] 1) Cut the glass fiber cloth prepreg and a part of the conductive fiber mat according to the size of the embedded parts, and then carry out alternate layers to form the uncured embedded parts;
[0055] 2) Cut the foam, film, wave-transmitting skin and another part of the conductive fiber felt according to the size of the wave-absorbing foam structure product, cut out the holes of the same size as the embedded parts in the cut single-layer foam, and place the uncured The embedded parts are placed in the foam holes, and the embedded parts are placed in an equidistant array structure, that is, the embedded parts are arranged at equal distances in both the horizontal and vertical directions, and the spacing is 80-100mm.
[0056] 3) Finally, the single-layer foam on which the embedded parts are laid, the cut film, the conductive fiber felt and the quartz cloth skin are alternately...
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Abstract
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