Preparation of thermal energy storage materials from bamboo polyethylene glycol and epoxy

A Thermal Energy Storage Bamboo Plastic Composite (TESBP) was developed using bamboo,polyethylene glycol (PEG) and epoxy. The material exhibited a transmittance of 42% and 63%, indicating effective pigment processing. Fourier Transform Infrared Spectroscopy (FTIR) analysis revealed the removal of chromophore groups from the original bamboo structure, stabilize with intercalated polymers. Scanning Electron Microscopy (SEM) showed tight integration of the phase change material within the wood matrix. Thermogravimetric analysis results show that the composites of TB/epoxy and TB/PEG samples began to decompose at 325°C and 329°C, respectively. The phase transition thermal properties, evaluated through differential scanning calorimetry (DSC), revealed that the melting and solidification enthalpies were 160.2 J/g and 147.6 J/g, respectively. These characteristics highlight TESBP's potential for medium temperature range thermal energy storage, presenting a viable composite material for such applications.