The influence of weave architecture on the mechanical properties of self-reinforced polypropylene

Swolfs, Yentl; Crauwels, Liesbet; Gorbatikh, Larissa; Verpoest, Ignace

doi:10.1016/j.compositesa.2013.06.015

Cited by 45 publications

(41 citation statements)

References 25 publications

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“…These PP tapes had a stiffness of 6.9 + 1.2 GPa and a strength of 589 + 24 MPa [26]. The weaves were overfed, a feature which is discussed in detail in Swolfs et al [19]. Propex Fabrics GmbH also provided 20 µm thick films of the same homopolymer PP grade as the tapes.…”

Section: Methodsmentioning

confidence: 99%

“…In contrast, the main goal of interleaved films in self-reinforced composites is to achieve wider processing window. These films also increases the peel strength and hence the interlayer bonding [19,23,24] by creating more matrix in between the fabric layers in hot compacted self-reinforced PP composites. Unfortunately, these films are known to reduce the penetration impact resistance [19], but it is not clear whether this is valid at other compaction temperatures and dwell times.…”

Section: Introductionmentioning

confidence: 99%

“…Aurrekoetxea et al [18] performed repeated impact tests and established an energy threshold below which no plastic deformation occurs. Swolfs et al [19] proved that there is only a small influence of the weave architecture on the penetration impact resistance, while Abraham et al [20] demonstrated the importance of the type of PP polymorph on the penetration impact resistance in selfreinforced PP.…”

Section: Introductionmentioning

confidence: 99%

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The influence of process parameters on the properties of hot compacted self-reinforced polypropylene composites

Swolfs

Zhang

Baets

et al. 2014

Composites Part A: Applied Science and Manufacturing

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Hot compacted self-reinforced polypropylene composites have good tensile properties and excellent impact resistance, but they have a limited processing window. Therefore, the influence of compaction temperature, dwell time and the application of interleaved films on the tensile and impact properties was assessed. Increased compaction temperature allows more molecular relaxation, thereby melting more matrix and creating a stronger interlayer bonding. This results in reduced 0° tensile properties and penetration impact resistance, while the 45° tensile properties and non-penetration impact resistance are maintained or improved. The dwell time only has minor influences on tensile and impact properties, while interleaved films have a similar influence as increased compaction temperature. These films increase the interlayer bonding, which increases the tensile strength and non-penetration impact resistance, but reduces penetration impact resistance. This paper demonstrates a wide property range depending on the processing parameters, helping in future tailoring of self-reinforced composites to specific applications.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The influence of process parameters on the properties of hot compacted self-reinforced polypropylene composites

Swolfs

Zhang

Baets

et al. 2014

Composites Part A: Applied Science and Manufacturing

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“…It is not clear what is causing this difference, as a more brittle matrix at low temperature should in principle cause a lower peel strength. This may be caused by edge effects, as the transverse tapes at the edges are being pulled loose during the peel strength test [8]. This phenomenon may be more diffic interl Fine-tuning of the matrix failure strain can improve the damage resistance of selfreinforced polymers.…”

Section: Peel Strengthmentioning

confidence: 99%

“…The drawing process enhances the molecular orientation of the PP, which improves the mechanical properties in the drawing direction [4,5]. These fibres or tapes are then woven in the preferred configuration [6][7][8] and compacted at elevated temperature and pressure into a self-reinforced sheet. Several techniques exist for creating the matrix.…”

Section: Introductionmentioning

confidence: 99%

Failure behaviour of self-reinforced polypropylene at and below room temperature

Swolfs

Fonteyne

Baets

et al. 2014

Composites Part A: Applied Science and Manufacturing

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Self-reinforced polypropylene is a very tough material. It is even thought that its impact resistance increases with decreasing temperature. This was investigated by examining the constituent tapes and matrix. Tensile tests on both drawn polypropylene tapes and self-reinforced polypropylene were similar: the stiffness increased and the failure strain slightly decreased at low temperatures. The matrix, however, embrittled below room temperature due to the glass transition. In contrast with literature data on Izod impact resistance, the penetration impact resistance did not increase at low temperatures. At lower temperatures, the damaged area after non-penetration impact was significantly reduced. This was caused by a change in the damage mode from tape-matrix debonding to matrix cracking, as the matrix went through its glass transition. These conclusions provide the first understanding of the failure behaviour of self-reinforced polypropylene below room temperature, and can be exploited to further optimise the excellent impact resistance of self-reinforced polymers.

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Self‐reinforced polymer composites: An opportunity to recycle plastic wastes and their future trends

Mensah

Vigneshwaran

et al. 2022

J of Applied Polymer Sci

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Polymers and their composites have played an important role in industrial development. Polymer composites are becoming much stronger and more competitive than other materials as a result of ongoing research and development. This was made possible by newly developed techniques that could alter the physical and chemical properties of constituents. One of them is the self‐reinforcement technique, which allows for the fabrication of high‐strength thermoplastic polymer composites with reserved degradability, which is not possible with glass fiber/carbon fiber reinforcement. A self‐reinforced polymer composite is made of a single polymeric material, which serves as both the matrix and the reinforcement. This review article discusses the use of self‐reinforcement in various polymers and its impact on mechanical, thermal, and fire properties. Furthermore, the effects of process parameters (such as temperature and time, an), reinforcement structure, and mechanical property variation on the structure of self‐reinforced composites are reviewed and presented in detail. In addition, the effect of foreign filler addition (such as flame retardants, inorganic particles, natural fibers, etc.) on self‐reinforced composites is highlighted. In the end, the need for future research and its scope is presented.

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The influence of weave architecture on the mechanical properties of self-reinforced polypropylene

Cited by 45 publications

References 25 publications

The influence of process parameters on the properties of hot compacted self-reinforced polypropylene composites

The influence of process parameters on the properties of hot compacted self-reinforced polypropylene composites

Failure behaviour of self-reinforced polypropylene at and below room temperature

Self‐reinforced polymer composites: An opportunity to recycle plastic wastes and their future trends

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