Synthesize and thermal stability of polyurethane dispersion

Polyurethane dispersion (PUD) using isophoren diisocyanate (IPDI), polyethylene glycol (PEG) of various molecular weight, N-methyl diethanol Amine (MDEA) and the solvent acetone to investigate the effect of molecular weight polyols used were synthesized. Due to the increasing molecular weight polyethylene glycol, molecular weight of waterborne polyurethane is also increased by the same amount. The amount of heat required for thermal stabilities will be different in different samples together. This effect can be due to chain length, the size of molecules, intermolecular forces and their interaction explained. In this study, various analyze such as infrared spectroscopy, nuclear magnetic resonance spectroscopy and particle size were used

کلیدواژه ها:

Polyurethane dispersion ، PEG ، Thermal stability ، Infrared spectroscopy