Ruixue Wang , Wenwen Shi , Pei Lyu , Hongli Long , Chunhua Zhang , Xin Liu
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Enhanced mechanical and hydrophilic properties of polyurethane composites via rational design of down powder incorporation
A polyurethane/down powder (PU/DP) composite film with exceptional thermomechanical properties and moisture permeability was successfully fabricated via a hybrid nonsolvent-induced phase separation coupled with solvent evaporation (HNIPS-SE) technique. This methodology, employing a binary solvent system (DMF:TOL = 1:1), demonstrated efficacy in enhancing mechanical performance while preserving the structural integrity of DP. Notably, the incorporation of 50 wt% DP yielded a composite film exhibiting a strain value of 724.0 ± 126 %, representing a 164 % enhancement compared to pure PU films prepared in DMF. Furthermore, the PU/DP composite demonstrated favorable biocompatibility, positioning it as a viable candidate for biomaterial applications.
期刊介绍:
Materials Letters has an open access mirror journal Materials Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review.
Materials Letters is dedicated to publishing novel, cutting edge reports of broad interest to the materials community. The journal provides a forum for materials scientists and engineers, physicists, and chemists to rapidly communicate on the most important topics in the field of materials.
Contributions include, but are not limited to, a variety of topics such as:
• Materials - Metals and alloys, amorphous solids, ceramics, composites, polymers, semiconductors
• Applications - Structural, opto-electronic, magnetic, medical, MEMS, sensors, smart
• Characterization - Analytical, microscopy, scanning probes, nanoscopic, optical, electrical, magnetic, acoustic, spectroscopic, diffraction
• Novel Materials - Micro and nanostructures (nanowires, nanotubes, nanoparticles), nanocomposites, thin films, superlattices, quantum dots.
• Processing - Crystal growth, thin film processing, sol-gel processing, mechanical processing, assembly, nanocrystalline processing.
• Properties - Mechanical, magnetic, optical, electrical, ferroelectric, thermal, interfacial, transport, thermodynamic
• Synthesis - Quenching, solid state, solidification, solution synthesis, vapor deposition, high pressure, explosive