公开(公告)号：US11433566B2

公开(公告)日：2022-09-06

申请号：US16729489

申请日：2019-12-30

Applicant: Southwest Forestry University

Inventor： Xiaojian Zhou ,  Guanben Du ,  Jun Zhang ,  Jinxing Li ,  Bin Li ,  Taohong Li

IPC: B27M1/02 ,  B27K3/02 ,  B27K3/34 ,  B27K5/00 ,  B27M1/08

Abstract: A durable palm fiber composite material is obtained by impregnating an unprocessed palm bark in a resin adhesive solution prepared by using a palm leaf as a raw material and then hot-pressing. The palm bark is dried under a natural state without additional processing. The palm leaf is made into a tannin resin adhesive solution under the effect of additives such as furfuryl alcohol, paraformaldehyde, and others. A pH value of the adhesive solution is controlled to be 9-11. A solid content is 40-60%. An adhesive amount applied to the palm bark by the resin adhesive solution is 800-1500 g/m2. Odd number of layers (three or more layers) of palm barks that are impregnated by the resin adhesive solution and are hot-pressed to the composite material. Hot-pressed parameters are as follows: the temperature is 150-180° C. the unit pressure is 0.8-1.5 MPa, and the time is 10-30 s/mm.