Effect of die geometry on foaming behaviors of high melt strength polypropylene with CO2

• Main Authors: Patrick C. Lee, Wanrudee Kaewmesri, Jing Wang, Chul B. Park, Jantrawan Pumchusak, Rick Follond, Andreas Praller
• Format: Conference Proceeding
• Published: 2018
• Subjects: Engineering
• Online Access: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=34648817406&origin=inward; http://cmuir.cmu.ac.th/jspui/handle/6653943832/61075
• Institution: Chiang Mai University

A systematic study is conducted to investigate the effect of die geometry (i.e., pressure and pressure-drop rate) on the cell-nucleation and growth behaviors of noncrosslinked high melt strength (HMS) polypropylene (PP) foams blown with supercritical CO2. The experimental results show that the cellu...