Negin Farshchi
Research Branch Islamic Azad University, Iran
Title: Investigation on Vegetable Oil Solubility Parameter and Interaction Parameters Dependence on Flow Rate and Temperature by Inverse Gas Chromatography(IGC)
Biography
Biography: Negin Farshchi
Abstract
Soybean oil, castor oil and rapeseed oil are biodegradable vegetable oils dominating today’s food oil market. The polyunsaturation of these oils and their availability in addition to the environmental hazards of common plasticizers and processing oils, makes it possible to use these natural oils as a compounding ingredient in polymeric compounds like Rubber or PVC compounds. Prediction of solubility between different materials is an advantage in many ways, one of the most convenient ways to know the compatibility of materials is to determine the degree of solubility of them in each other, the concept of “solubility parameter” can help practitioners in this way.
In this study, the solubility parameter of vegetable oils and interaction parameters and their dependence on temperature and gas flow rate was determined by inverse gas chromatography technique.
Results show that there are three different areas in respect to flow rate. Slow, stable and fake marker areas and suggest that there is a relationship between fluids dynamic and solubility parameter value. Best flow rate was determined to be 30 ml/min. Despite the Flory Huggins theory prediction there is no clear trend for Flory Huggins interaction parameter dependence on temperature. Also, the negative values for Flory Huggins interaction parameter were achieved by IGC method which could not be evaluated through the Flory Huggins theory. The solubility parameter will decrease by increasing temperature, and it will increase by increasing flow rate.