Properties and microstructure of polyurethane resins from liquefied wood
โ Scribed by Yuping Wei; Fa Cheng; Houping Li; Jiugao Yu
- Publisher
- John Wiley and Sons
- Year
- 2005
- Tongue
- English
- Weight
- 157 KB
- Volume
- 95
- Category
- Article
- ISSN
- 0021-8995
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## Abstract Biopolyurethane prepared from liquefied wood with the residue of the liquefied wood product was investigated in this article. Previous results indicated that the residue of the liquefaction product was composed mostly of compounds originated from lignin. The chemical structures of ligni
## Abstract The wood powder of __Cryptomeria japonica__ (Japanese cedar) was liquefied in phenol, with H~2~SO~4~ and HCl as a catalyst. The liquefied wood was used to prepare the liquefied woodโbased novolak phenol formaldehyde (PF) resins by reacting with formalin. Furthermore, novolak PF resins w