Abstract:

In this paper, the structure mechanism of MFLB was introduced, and the void was pointed to be an important structure character of MFLB. Another parameter named hole compressibility(η) was introduced in studying MFLB, a set of hot pressure were applied to produce various hole compressibility, some uniform sections on cross-section of MFLB were selected by microscopic analysis to discuss the effects of hole compressibility on the MOE & MOR of MFLB. The results showed that MFLB (0.3 g·cm^-3 in density ) pressed at various hot presses( from 1.6 to 2.2 Mpa ) all met with JISA 5908 Japanese Particleboard Standard,η≤0,ranged from-0.048 7～-0.068 0, the critical value of hole compressibility at which the strength began to decrease was also obtained, and the void distribution, size and shape at different void content & hole compressibility were compared, then the effects of hole compressibility on MOE and MOR of MFLB was discussed.

Key words: MFLB, structure mechanism, hole compressibility, MOR, MOE