## Abstract Fifty vegetable oilβbased polyols were characterized in terms of their hydroxyl number and their potential of replacing up to 50% of the petroleumβbased polyol in waterborne rigid polyurethane foam applications was evaluated. Polyurethane foams were prepared by reacting isocyanates with
Structures and physical properties of rigid polyurethane foam prepared with rosin-based polyol
β Scribed by Jian Feng Jin; Yong Ling Chen; De Ning Wang; Chun Pu Hu; Stella Zhu; Lieve Vanoverloop; David Randall
- Publisher
- John Wiley and Sons
- Year
- 2002
- Tongue
- English
- Weight
- 304 KB
- Volume
- 84
- Category
- Article
- ISSN
- 0021-8995
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A series of rigid interpenetrating polymer network (IPN) foams, based on a rosin-based polyurethane and an epoxy resin, were prepared by a simultaneous polymerization technique. The changes in the chemical structure, dynamic mechanical properties, and morphology of the rigid IPN foams were investiga
## Abstract A novel method for preparing rigid polyurethane (PU) foam/organoclay nanocomposites was developed through the direct incorporation of an organoclay into PU foam matrices without the addition of any physical or chemical blowing agent. The resultant foams with an appropriate content of th