PLA Bead Foam Manufacturing-A Novel Technology


Nofar M. , Park C. B.

POLYLACTIDE FOAMS: FUNDAMENTALS, MANUFACTURING, AND APPLICATIONS, ss.195-231, 2018 (Diğer Kurumların Hakemli Dergileri) identifier

  • Basım Tarihi: 2018
  • Doi Numarası: 10.1016/b978-0-12-813991-2.00007-x
  • Dergi Adı: POLYLACTIDE FOAMS: FUNDAMENTALS, MANUFACTURING, AND APPLICATIONS
  • Sayfa Sayıları: ss.195-231

Özet

Bead foam manufacturing technology is another foam processing technology route that is widely being used to manufacture low-density three-dimensional complex foam geometries. This chapter discusses a novel manufacturing technology to develop polylactide (PLA) bead foams via developing foams with double crystal melting peak and more specifically incorporating high-melting temperature crystals, generated during the saturation, in developing microcellular bead foams with high expansion ratios via influencing the cell nucleation and growth behavior of PLA bead foams. The low-melting peak crystals generated during the foaming/cooling further influence the foaming behavior of PLA. In this context, variations of PLA-CO2 mixtures' crystallization mechanisms could profoundly influence the foaming behavior of PLA. Steam-chest molding is further utilized to verify the interbead sintering behavior of the foamed beads.