Pirina kompozit reçine sentezi

In this study melamine-formaldehyde, urea-formaldehyde and melamine-urea-formaldehyde resins which are thermoset amino resins are modified with olive pomace which is a natural product. Olive pomace, which is taken from Edremit region of Balikesir/Turkey, which has been a waste of olive industry and has been used as fuel or fertilizer by local farmers. The aim of this study is to utilize olive pomace in industry by modifying the amino resins which are synthesized at basic environment with olive pomace. Therefore, resin will be more lightweight, cheaper and will have a wood-like appearance. This study consists of two parts. First part is the synthesis of melamine-formaldehyde and urea-formaldehyde resins which are classified as thermosetting amino resins and their pomace composites. The desired Formaldehyde/Melamine and Formaldehyde/Urea molar ratios are 2 and the synthesis reactions takes place at basic environment. To make a wood-like resin-pomace composite, resins are in situ modified with olive pomace while they are synthesized. The weight of pomace is determined as 10%, 20% and 50% of the weight of melamine and urea in melamine-formaldehyde and urea-formaldehyde resins respectively. In the second part a combination of melamine and urea is used. Melamine-urea-formaldehyde resin is synthesized with a pomace amount of 20% of the total weight of melamine and urea. Resins are characterized using Fourier Transform Infrared Spectroscopy. Water absorption percentage, solubility in water and solubility of in organic solvents are determined. They are resistant to solvents, they either insoluble or slightly soluble. They have wood-like appearance as intended. Moreover, they have different characteristics based upon olive pomace ratio. In low olive pomace weight ratios colour of the composites are light and it gets darker as olive pomace ratio increases. Also, in low olive pomace weight ratios composites are hard and rigid while in higher olive pomace ratios they become softer and sticky. They all have homogeneous appearance which makes them suitable for direct use in many applications.