Technology for improving compression performance of composite material laminated board
A composite material layer and pressing board technology, which is applied in the field of composite material laminate preparation, can solve the problems of different resin content and different glue absorption, and achieve the effect of increasing compression performance and expanding the application range
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[0027] Example 1:
[0028] Such as figure 2 , Pave 6 prepreg laminates on a 1200mm×2500mm flat glass mold with a size of 300mm×300mm. After the paving is completed, a layer of release cloth is placed on the prepreg blank, and three layers of suction Adhesive cloth, a layer of non-porous isolation film, a layer of breathable felt, and a layer of vacuum bag. Use yellow sealant to seal the vacuum bag. The breather shall completely cover the isolation film and the vacuum bag shall completely cover the breathable felt. The vacuum pump 4b passes through the vacuum joint 3b is connected to the vacuum bag 1b. At this time, the vacuum pump 4b is turned on and the vacuum is drawn. According to the vacuum table 2b, it can be observed that the actual vacuum is -0.97MPa. After the paving is completed, the laminate is cured. The thickness of the cured board was tested, and it was found that the thickness of the adhesive-absorbed laminate and the unadsorbed laminate were 3.3% thinner, and the ...
Example Embodiment
[0029] Example 2:
[0030] Select the more complicated parts for testing. The selected mold has a larger curvature, and then the auxiliary materials and the same number and specifications of the absorbent cloth are placed in the same order as in implementation 1, such as image 3 As shown, the vacuum pump 4c is connected to the vacuum bag 1c through the vacuum connector 3c. At this time, the vacuum pump 4c is turned on and the vacuum is drawn. The actual vacuum degree can be observed from the vacuum degree table 2c to be -0.97MPa. After the paving is completed, the laminate is cured . The thickness of the cured board was tested, and it was found that the thickness of the glue-absorbed laminate and the non-adhesive laminate were 3.75% thinner, and the compressive strength increased by 8.3%.
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