Increase of open‐cell content by plasticizing soft regions with secondary blowing agent | Zendy

Lee Patrick C. | Zendy; Naguib Hani E. | Zendy; Park Chul B. | Zendy; Wang Jin | Zendy

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Increase of open‐cell content by plasticizing soft regions with secondary blowing agent

Author(s) -

Lee Patrick C.,

Naguib Hani E.,

Park Chul B.,

Wang Jin

Publication year - 2005

Publication title -

polymer engineering and science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.503

H-Index - 111

eISSN - 1548-2634

pISSN - 0032-3888

DOI - 10.1002/pen.20422

Subject(s) - low density polyethylene , blowing agent , materials science , extrusion , polystyrene , polyethylene , butane , high density polyethylene , expansion ratio , composite material , expanded polystyrene , polymer chemistry , chemical engineering , polymer , organic chemistry , chemistry , polyurethane , catalysis , engineering

This article describes the effects of n‐butane mixed with primary CO 2 as a secondary blowing agent on the cell‐population density, the volume expansion ratio, and the open‐cell content of low‐density polyethylene (LDPE) and LDPE/polystyrene (PS) blends in extrusion. With the plasticizing effect of n‐butane, a high open‐cell content (up to 100%) over a wide range of processing temperatures was successfully achieved. POLYM. ENG. SCI., 45:1445–1451, 2005. © 2005 Society of Plastics Engineers

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