A SOLID PHENOLIC CORE AND PREPARATION METHOD THEREOF

摘要

This invention discloses a three-layer-sandwich solid phenolic core (SPC) comprising first outside layer, middle layer and second outside layer. The middle layer of the SPC is a thick solid plate formed by using several layers of paper material through heat-pressing process; the first and second outside layers of the SPC are thin solid plates formed by using several layers of paper material through heat-pressing process; the three-layer-sandwich SPC is formed by coating adhesive on the outside surfaces of the middle layer (or the inner surfaces of the first and second outside layers) and then by pressing the first and second outside layers onto the outside surfaces of the middle layer. This invention is advantageous in increasing yield, increasing production elasticity, decreasing SPC cost and increasing the quality of the SPC.