Experimental investigation of pultrusion of glass fibre reinforced polypropylene composites

Filament Winding of Co-Extruded Polypropylene Tapes for Fully Recyclable All-Polypropylene Composite Products

“…Another composite process, in which the reinforcement is heated while in tension, is pultrusion. This process can be used to make any profiles with a constant cross-section and it has been the objective of numerous studies to adapt the pultrusion process for thermoplastic composite materials [35][36][37][38]. The typical process is based on impregnated reinforcement fibres being pulled through a heated die to melt the matrix phase and subsequently consolidate the composite in the geometry of the die.…”

“…A tension limited to 50 MPa corresponds to 10% of the tensile strength of the tape at room temperature. Carlsson and Åström [37] studied the pultrusion of glass/PP prepregs through a die with a rectangular cross-section (3×30 mm) using an instrumented line in which parameters such as the pulling force could be measured. This research showed that the pulling stress (pulling force/cross section), i.e.…”

Composite materials – modelling, prediction and optimization

“…The relevance of appropriate planning of the heating profi le, including also the pre-heater temperature, the heating-platen temperatures, the cooling temperature and the pull speed (which indirectly infl uences the steady-state temperature, owing to transport effects), has been highlighted in an experimental investigation performed by Carlsson and Åström [120], who remarked on the link between these features and the mechanical and surface properties of the processed part. What is more, some manufacturing defects, such as voids and micro-cracks, usually related to a non-optimal cure profi le in the processed part, affect the linear and non-linear behaviour of pultruded composites [121].…”

The Processing Design of Jute Spun Yarn/PLA Braided Composite by Pultrusion Molding

“…Pultrusion is a manufacturing process in which reinforcing fibers impregnation with matrix is pulled through a die to form composites of a constant cross-section. Generally, the unidirectional fibers are impregnated with low viscosity thermosetting resins before passing through a series of dies for shaping and curing during pultrusion process [1][2][3]. While thermoset pultrusion is a well-known and commercially established manufacturing method, there is less knowledge about the thermoplastic pultrusion.…”