Film processability and properties of polycaprolactone/thermoplastic starch blends

In this work, the processing and properties of blown films prepared from thermoplastic corn starch (TPS) and polycaprolactone (PCL) were studied, in particular at high TPS content. The influence of processing parameters and material moisture content on the tensile properties was also studied. The re...

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Bibliographic Details
Published in:Journal of applied polymer science 2012-01, Vol.123 (1), p.179-190
Main Authors: Ramírez-Arreola, Daniel E., Robledo-Ortiz, Jorge R., Moscoso, Francisco, Arellano, Martín, Rodrigue, Denis, González-Núñez, Rubén
Format: Article
Language:English
Subjects:
Applied sciences
Blends
Controllers
Exact sciences and technology
Machinery and processing
Materials science
mechanical properties
Miscellaneous
Moisture content
morphology
Moulding
Plastics
Polycaprolactone
Polymer blends
Polymer industry, paints, wood
Polymers
Programmable logic devices
Starches
Technology of polymers
Thermoplastic resins
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Summary:In this work, the processing and properties of blown films prepared from thermoplastic corn starch (TPS) and polycaprolactone (PCL) were studied, in particular at high TPS content. The influence of processing parameters and material moisture content on the tensile properties was also studied. The results show that final film properties are mainly controlled by the draw ratio, blow‐up ratio and PCL concentration in the blends. The results also show that PCL/TPS films are less hydrophilic as PCL content increases. Finally, it was found that a very narrow processing window exists for this blend. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2011.
ISSN:0021-8995
1097-4628
1097-4628
DOI:10.1002/app.34444