Polyurethane/Bentonite/Chitosan Blend for Improved Thermal and Protection Microorganisms for Paint Application

Abstract

In this study polyurethane synthesis was carried out using the pre-polymer method using the reaction of Toulena Diisocyanate (TDI) with oleic acid-based palm oil polyols. To provide heat resistance properties for coating paint material, add bentonite (B) and chitosan (K) to polyurethane samples. The concentrations of bentonite and chitosan used were 1% b / b, 2% b / b and 3% b / b, respectively. Palm oil-based oleic acid polyol samples were analyzed for chemical compound structure using Fourier Transform Infrared (FTIR) obtained by O-H group at a wavelength of 3437.15 cm-1. Preparation of bentonite and chitosan purification was done by adding cetyltrimethyl ammonium bromide solution to bentonite solution and CH3 3 COOH 2% solution and NaOH into chitosan solution, successfully increasing the d-spacing layer with the acquisition of 1.144 nm to 1.513 nm in bentonite and 1.117 nm to 1.475 nm in chitosan and an increase in the value of heat resistance is evidenced by the results of observations using XRD and Thermogravimetric Analysis (TGA).