| abstract |
The invention discloses the honeycomb composite cardboard and its manufacture method that a kind of expandability bonds by force high sound-absorbing, composite plate is combined by bottom fabric, glued membrane A, prepreg, glass fiber reinforced polypropylene fibrous composite GMT, glued membrane B, comb core, glued membrane B, glass fiber reinforced polypropylene fibrous composite GMT, prepreg, glued membrane C successively from bottom to top.It is in rivet type bonded structure between glued membrane B and comb core in the present invention so that the increase of peel strength between product upper, middle and lower layer, integral rigidity increase, increased one layer of GMT, it is not full to improve the shaping in shaping of former patented product, the problems such as easy glass emergence on the surface. |