Effect of Polymer Form and its Consolidation on Mechanical Properties and Quality of Glass/PBT Composites

Durai Prabhakaran Raghavalu Thirumalai, Saju Pillai, Samuel Charca, Simin Ataollahi, Hans Knudsen, Tom Løgstrup Andersen, Jakob Ilsted Bech, Ole Thybo Thomsen, Hans Lilholt

Research output: Contribution to journalJournal articleResearchpeer-review


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
JournalApplied Composite Materials
Pages (from-to)301–324
Number of pages24
Publication statusPublished - 2014

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