1. Department of Forestry National Chung Hsing University Properties of the Polyblends Prepared from Polyhydric Alcohol Liquefied Japanese Cedar with Epoxy Resin Department of Forestry National Chung-Hsing University 2007 IUFRO All-Division 5 Conference Chiou-Chang Wu 1 Wen-Jau Lee 2 1 Graduate student, Department of forestry, National Chung-Hsing University. 2 Professor, Corresponding author, Department of Forestry, National Chung-Hsing University. No.250, Guoguang Rd., South District, Taichung City 402, Taiwan (R.O.C.)

2. Department of Forestry National Chung Hsing University Fossil Non-renewable Greenhouse Biomass Renewable Sustainability Nature resins modified Introduction Utilizing black liquid Woody reactive Liquefcation

3. Department of Forestry National Chung Hsing University Experiment skeleton - Liquefied Japanese cedar- Liquefaction Liquefied agents (PEG400/glycerol; PEG600/glycerol) Solvent/wood: 3/1 w/w Catalyst: H 2 SO 4 Reaction time: 75 min Temperature: 150 ℃ Japanese cedar (Cryptomeria japonica) Liquefied products

4. Department of Forestry National Chung Hsing University Experiment skeleton - Liquefied wood/epoxy resin polyblends - Polyblending (LW/EP) 40/1000/100 Liquefied woodepoxy resin

5. Department of Forestry National Chung Hsing University Conclusions DSC thermoanalysis of polyblends -It was an exothermic reaction. -It could be further cross-linked with heating. LW/EP polyblends (60/100) vs.traditional epoxy resins -heating with 90 ℃ for 3 h -Its bonding strength was better.

6. Department of Forestry National Chung Hsing University Appreciation for your comments