Interfacial stabilizing and reinforcing effects of silsesquioxane-based hybrid Janus molecules in extrusion supercritical CO₂ foaming of polypropylene

• Main Authors: Ho, Keen Hoe, van Meurs, Martin, Lu, Xuehong, Lau, Soo Khim
• Other Authors: School of Materials Science and Engineering
• Format: Article
• Language: English
• Published: 2023
• Subjects: Engineering::Materials; Polypropylene; Surfactant
• Online Access: https://hdl.handle.net/10356/165627
• Institution: Nanyang Technological University

High-melt-strength (HMS) polypropylene (PP) has enabled easy supercritical-CO2 (scCO2) foaming of PP. However, producing microcellular PP foams via simple scCO2 extrusion foaming still remains challenging, whereas macrocellular PP foams with high expansion ratios (ER) generally exhibit poor mechanic...