Thermal Properties of Polyvinyl acetate (PVA) and Toluene Diisocyanate (TDI)  With Prepared Solfonated Phenol Formaldehyde            Resin (SPF) as Composites.

Salman Bachari, Thamir

	Thermal Properties of Polyvinyl acetate (PVA) and Toluene Diisocyanate (TDI) With Prepared Solfonated Phenol Formaldehyde Resin (SPF) as Composites.
basrah journal of science
Article 1, Volume 33, Issue 1, 2015, Pages 47-69 PDF (0 K)
Author
Thamir Salman Bachari
Abstract
Two similar specimens of polyvinyl acetate (PVA) and toluene diisocyanate (TDI) blend and prepared solfonated phenol formaldehyde resin (SPF) as a mixture composite. SPF was diagnosed by infrared Fourier transformation (FTIR) spectrophotometer. The specimens were subjected to thermal heating by using copper electric heater; this was connected to d.c power supply. Three copper-constantan thermocouples were connected from junctions in two copper plates with dimension 4.2x 3.5x 0.2 cm3. in length, width and thickness respectively, to voltmeters for measuring the temperature across two similar specimens, with respect to the ambient and ice point temperatures. Negative electric potential (voltage) -2.7 mv and -3.1 mv dependence for thermal conductivity of the composite has indicated at 0.3%wtSPF. The calculated thermal conductivity were 0.0043 W.m-1.k-1 and 0.00239 W.m-1.k-1 at temperature 303 k and 203 k. for 0.2%wtSPF and 0.3%SPF respectively to 0.007 W.m-1.k-1 and 0.001 W.m-1.k-1 at 602.985 k and 582.999 k for 0.4%wtSPF and 2%wtSPF respectively. Maximum extrapolation is 0.07 W.m-1.k-1 for 1%wtSPF.
Keywords
PVA; TDI; SPF; mixtures; FTIR spectroscopy; composites; bonds; thermal conductivity

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