Functional Polymer Foams: Green Fabrication Methods By Mi H
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Functional Polymer Foams: Green Fabrication Methods By Mi H

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363
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19.24 MB
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Digital PDF
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eBook[PDF]
About this ebook
Dr. Hao-Yang Mi's work on Functional Polymer Foams: Green Fabrication Methods, Performance and Applications details sustainable manufacturing techniques for cellular plastics—primarily utilizing supercritical fluids like carbon dioxide (scCO₂)—to replace toxic chemical blowing agents and build advanced, eco-friendly materials. [1, 2, 3, 4]
Core Green Fabrication Techniques
  • Supercritical Fluid (scCO₂) Technology: Uses non-toxic, recyclable carbon dioxide as a physical blowing agent instead of ozone-depleting or hazardous chemicals. [1, 2, 3]
  • Gas Dissolution & Pressure Drop: Involves dissolving high-pressure scCO₂ into a polymer melt, then triggering rapid thermodynamic instability to nucleate and expand uniform microcellular pores. [1, 2, 3]
  • Solvent-Free Melt Processing: Combines extrusion or injection molding directly with gas injection, cutting out harmful volatile organic compound (VOC) solvents. [1, 2]
Key Performance Factors & Structures
  • Microcellular Control: Achieves high cell densities and uniform pore sizes down to the micro- and nanoscale, enhancing structural integrity. [1, 2, 3]
  • Anisotropic Design: Uses directional stretching or thermal management to align pores for specialized mechanical flexibility. [1, 2]
  • Multifunctional Synergy: Integrates nano-fillers or polymer blends to optimize thermal resistance, acoustic damping, and lightweight performance. [1, 2, 3]
Target Applications
  • Energy Absorption: Lightweight impact-mitigation structures and cushioning.
  • Thermal & Acoustic Insulation: High-efficiency barriers for green buildings and aerospace.
  • Biomedical & Sensors: Biocompatible tissue scaffolds and flexible electronic sensors.
  • Environmental Clean-Up: Superhydrophobic foams engineered for oil-spill cleanup and solar steam generation. [1, 2, 3, 4]

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Functional Polymer Foams Green Fabrication Methods
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