Authors:Ehsan Bafekrpour, George P. Simon, Chunhui Yang, Jana Habsuda, Minoo Naebe, and Bronwyn Fox
optimal composition in synthetic graphite (SG)–phenolic nanocomposites subjected to an in-plane heat flux.
Several numerical and analytical studies have been devoted to transient thermal analysis to investigate the effect of main parameters in
Authors:M. Rao, S. Alwan, K. Scariah, and K. Sastri
Phenol-formaldehyde resins (I andII), synthesised at a monomer feed ratio of F/P = 1.0 and 1.5, were cured at 130‡C for 48 h without any catalyst (Ia, IIa), with 0.1% ferric acetyl acetonate (Ib, IIb) and with 0.1 %p-toluenesulphonic acid (Ic, IIc). Thermogravimetric studies indicate that the decomposition of the cured products takes place in two distinct stages: The
first stage (T=340–480‡C; α=0.045–0.16; δE1 = 140±10-239±24 and 60±3–65±2 kJ mol−1 for seriesI andII respectively) was attributed to the predominant cleavage of formal linkages. The main stage decomposition (T=460–640‡C; α=0.114–0.393; δE2=115±8–169±8 and 91±6–103±7 kJ mol−1 for seriesI andII respectively) was attributed to reactions leading to graphitisation. δE2 values were correlated to the extent of cure as measured by IR spectroscopy and pyrolysis-GC. The effect of catalysts on
the extent of cure and on the activation energy was evaluated.
Authors:Đ. Malenčić, B. Kiprovski, V. Bursić, G. Vuković, B. Ćupina, and A. Mikić
, C. , Pena-Neira , A. , Caceres , A. , Hernandez , T. , Estrella , I. , Morales , H. & Pertuze , R. ( 2013 ): Phenolic compound composition in immature seeds of fava bean (Vicia faba L.) varieties cultivated in
Authors:Oriana D'alessandro, Horacio J. Thomas, and Jorge E. Sambeth
Phenol is a chemical product mainly of anthropogenic origin, since in nature it can be found only in the decomposition of organic remains, such as in resins or in wood combustion. The main sources are refineries