Bending Strength and Porous Structure of Carbonized Panels Made from Waste Phenol-formaldehyde Resin and Magazine Paper
Kensuke Kawarada*, Hirotaka Nakanami**, Takahiko Iida*, Takayuki Okayama**, Toshio Waku*** and Arihiro Enomoto****Abstract
Carbonized panels were prepared from waste phenol-formaldehyde resin and magazine paper by gas phase activation method. The bending properties and porous structure of these carbonized panels were investigated. The modules of elasticity(MOE)was increased with carbonization for raw panels. However, the MOE and modules of rupture(MOR)were decreased with carbon dioxide gas activation. Thus, decomposition of organic substance including waste phenol-formaldehyde resin through the carbon dioxide activation process influenced the decrease of MOE and MOR. The specific surface area of carbonized panel containing waste phenol resin was 650`760m2/g and suggesting that carbonized panels has a well-developed porous structure.
Key words: waste phenol-formaldehyde resin, waste magazine paper, carbonized panels, bending strength, porous structure