Thermal degradation process of a char forming phenolic matrix composite
Publish place: 10th National Iranian Chemical Engineering Congress
Publish Year: 1384
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
NICEC10_426
تاریخ نمایه سازی: 6 بهمن 1385
Abstract:
Thermo gravimetric analysis have been used to study the mechanisms involved in the thermal degradation process of polymer and composites. A process of thermal degradation for char forming of phenolic matrix composite is analytically investigated and evaluated experimentally.In this work the effect of air atmosphere on the thermal degradation of resol-type phenolic/asbestos composite during pyrolysis was investigated and compared with that of nitrogen atmosphere, using DSC, and TGA techniques. Reaction rate constant for thermolysis of chemical bonds, gas production, and char forming could be determined from parametric fits of the process of charring model to the thermo gravimetric data.As the results of this work activation energy, frequency factors and degree of thermal degradation in air and nitrogen were obtained.
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Authors
Ahmad Reza Bahramian
Polymer Engineering Group, Tarbiat Modares University (TMU)
Mehrdad Kokabi
Polymer Engineering Group, Tarbiat Modares University (TMU)
Mohammad Hossein Navid Famili
Polymer Engineering Group, Tarbiat Modares University (TMU)
Mohammad Hossein Beheshty
Iran Polymer and Petrochemical Institute