TY - JOUR
T1 - Novel tooling for direct melt impregnation of textile with variotherm injection moulding
T2 - Methodology and proof of concept
AU - Werlen, Vincent
AU - Rytka, Christian
AU - Wegmann, Stephanie
AU - Philipp, Halime
AU - Khalaf, Yara
AU - Michaud, Véronique
AU - Brauner, Christian
AU - Dransfeld, Clemens
PY - 2022
Y1 - 2022
N2 - Thermoplastic compression resin transfer moulding coupled with injection moulding is an appealing process for the production of thermoplastic composites. However, its implementation at an industrial scale remains challenging as variotherm injection moulding could prevent solid skin formation in the parting line, making cavity sealing difficult. In this study, a tool for thermoplastic compression resin transfer moulding and the related methods and process parameters for an implementation at an industrial scale are presented. The validity of the concept is proved by producing and characterizing composite plates with elevated fibre volume fractions and advantageous mechanical properties at a range of production temperatures within a cycle time not exceeding 20 min. The best mechanical properties were obtained at a production temperature of 270°C with a bending strength of 477 MPa, a flexural modulus measured at 25.7 GPa and a fibre volume content of 67%.
AB - Thermoplastic compression resin transfer moulding coupled with injection moulding is an appealing process for the production of thermoplastic composites. However, its implementation at an industrial scale remains challenging as variotherm injection moulding could prevent solid skin formation in the parting line, making cavity sealing difficult. In this study, a tool for thermoplastic compression resin transfer moulding and the related methods and process parameters for an implementation at an industrial scale are presented. The validity of the concept is proved by producing and characterizing composite plates with elevated fibre volume fractions and advantageous mechanical properties at a range of production temperatures within a cycle time not exceeding 20 min. The best mechanical properties were obtained at a production temperature of 270°C with a bending strength of 477 MPa, a flexural modulus measured at 25.7 GPa and a fibre volume content of 67%.
KW - compression moulding
KW - Fibre-reinforced thermoplastics
KW - injection moulding
KW - mechanical properties
KW - sealing
UR - http://www.scopus.com/inward/record.url?scp=85139420871&partnerID=8YFLogxK
U2 - 10.1177/00219983221130720
DO - 10.1177/00219983221130720
M3 - Article
AN - SCOPUS:85139420871
SN - 0021-9983
VL - 56
SP - 4245
EP - 4257
JO - Journal of Composite Materials
JF - Journal of Composite Materials
IS - 28
ER -