Effect of different hot-pressing technology on mechanical properties of binderless particleboard from kenaf core

摘要

Binderless particleboard from kenaf core was prepared by steam-injection hot pressing technology and conventional hot pressing technology respectively, and temperature variations of mat core layer was tested by thermocouple during hot-pressing process, density profile of binderless particleboard was tested by isotopic density tester, the effect of two different hot-pressing technology on mechanical properties of binderless particleboard from kenaf core was studied. During conventional hot pressing cross-section temperature distribution of mat was not uniform, and density profile of binderless particleboard was also not uniform, so mechanical properties of binderless particleboard was poor; But during steam-injection hot pressing cross-section temperature distribution of mat was more uniform, and density profile of binderless particleboard was also more uniform, at the same time, because of pretreatment effect of saturated steam on kenaf core, mechanical properties of binderless particleboard was improved greatly.