Structural Tuning and Performance Investigation of PU@PEG Phase Change Materials
Combining phase change materials with textile materials can effectively regulate body temperature,en-hance comfort,and reduce the reliance on air conditioning systems for temperature adjustment,thereby reducing energy consumption.This study prepared a core-shell PU@PEG solid-solid phase change material by using coaxial electrospinning,combining polyurethane ( PU) and polyethylene glycol ( PEG) .By controlling the electrospinning process parameters and adjusting the alignment and crystallinity of nanofibers,the mechanical properties of the phase change material were enhanced.Compared to randomly arranged materials,the oriented PU@PEG phase change material exhibits a significant improvement in elastic modulus ( increased by over 38.01％) ,fracture stress ( increased by over 15.92％) ,and melting enthalpy ( increased by 8.51％) .Overall,this enhancement contrib-utes to improved energy storage performance and application durability of the phase change material.
万方数据
维普
