Bio-based nanocomposites byin situ cure of phenolic prepolymers with cellulose whiskers
(619-630) Cellulose 18 #3 (2011)
Liu and Laborie, Washington and Germany, fabricated a series of resole-type phenolic resin-based nanocomposites, uniformly filled with cellulose nanowhiskers (CNWs) via direct solution mixing, then solvent-exchange with DMF and finally stepwise thermal curing.  Dynamic mechanical analysis showed a moderate reinforcing effect with a minimum CNWs weight content of 5.0 wt% especially above the resin glass transition temperature (T g).  The Halpin–Kardos model provided a good description of the CNWs reinforcing effect, suggesting perhaps the contribution of whiskers/matrix interactions rather than that of whiskers/whiskers interactions.  In spite of a modest reinforcing effect, it is proposed that CNWs are also interesting fillers for high modulus and high T gthermosetting resins that require high temperature cure. (RDC 5/5/2011)

Composites     
Hybrid Biocomposites    
Materials  
Nanocomposites   
Phenolic Nanocomposites   

Recent US Patents

Comments