Effect of polymer form and its consolidation on mechanical properties and quality of glass/PBT composites

R.T. Durai Prabhakaran, S. Charca, S.A. Oshkovr, H. Knudsen, T.L. Andersen, J.K. Bech, O.T. Thomsen, H. Lilholt

Research output: Contribution to journalArticle (Academic Journal)peer-review

8 Citations (Scopus)


The aim of this study was to understand the role of the processing in determining the mechanical properties of glass fibre reinforced polybutylene terephthalate composites (Glass/PBT). Unidirectional (UD) composite laminates were manufactured by the vacuum consolidation technique using three different material systems included in this study; Glass/CBT (CBT160 powder based resin), Glass/PBT (prepreg tapes), and Glass/PBT (commingled yarns). The different types of thermoplastic polymer resin systems used for the manufacturing of the composite UD laminate dictate the differences in final mechanical properties which were evaluated by through compression, flexural and short beam transverse bending tests. Microscopy was used to evaluate the quality of the processed laminates, and fractography was used to characterize the observed failure modes. The study provides an improved understanding of the relationships between processing methods, resin characteristics, and mechanical performance of thermoplastic resin composite materials.
Original languageEnglish
Pages (from-to)301-324
Number of pages24
JournalApplied Composite Materials
Issue number2
Publication statusPublished - 1 Apr 2014


  • thermoplastic composites, polybutylene terephthalate (PBT), vacuum consolidation, compression properties, prepregs, fractography


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