Radiation crosslinked poly(butylene succinate) foam and its biodegradation

The gel fraction (%) for poly(butylene succinate) (Bionolle) blended with blowing agents was found to be higher than the pure Bionolle due to the presence of other component that also underwent crosslinking. It was also found that the cell diameter of the Bionolle foam produced from irradiated Biono...

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Bibliographic Details
Published in:Polymer degradation and stability 1998-01, Vol.62 (3), p.551-557
Main Authors: Bahari, Kamarudin, Mitomo, Hiroshi, Enjoji, Taro, Yoshii, Fumio, Makuuchi, Keizo
Format: Article
Language:English
Subjects:
Applied sciences
Biodegradation
Blending
Blowing agents
Cellular
Composition effects
Crosslinking
Enzymes
Exact sciences and technology
Forms of application and semi-finished materials
Gels
Polyesters
Polymer industry, paints, wood
Radiation effects
Technology of polymers
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Summary:The gel fraction (%) for poly(butylene succinate) (Bionolle) blended with blowing agents was found to be higher than the pure Bionolle due to the presence of other component that also underwent crosslinking. It was also found that the cell diameter of the Bionolle foam produced from irradiated Bionolle blend decreases as the gel fraction increases, because the crosslink density increases and thus it retards the bubble growth. Lower gel fraction, less than 5% was effective enough to give sufficient melt strength for production of foams. It was found that the biodegradability of Bionolle foam in the enzymatic degradation test and soil burial test was higher than that of crosslinked Bionolle (before foaming) because it contained many bubbles.
ISSN:0141-3910
1873-2321
DOI:10.1016/S0141-3910(98)00041-X