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

• Main Authors: Lee P.C., Kaewmesri W., Wang J., Park C.B., Pumchusak J., Follond R., Praller A.
• Format: Conference or Workshop Item
• Language: English
• Published: 2014
• Online Access: http://www.scopus.com/inward/record.url?eid=2-s2.0-34648817406&partnerID=40&md5=b66e08401d1d16a11f077e8166654e39; http://cmuir.cmu.ac.th/handle/6653943832/5189
• 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...