The effect of cooling rates on crystallization and low-velocity impact behaviour of carbon fibre reinforced poly(aryl ether ketone) composites

Zhang, Jindong; Liu, Gang; An, Peng; Yu, Ke; Huang, Jia; Gu, Yu; Yao, Jianan; Cao, Rui; Líu, Hao; Chen, Chunhai; Zhang, Chao; Wang, Ming

doi:10.1016/j.compositesb.2023.110569

Cited by 25 publications

(8 citation statements)

References 35 publications

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“…In this work, the cooling rates of CF/PEEK laminates drilled by three drill bits are larger than 1°C/min 36 . A large cooling rate of laminate in the natural environment results in insufficient time for the spherulites to grow to a larger size 36 . Therefore, there is no obvious difference in the polarization morphology between raw material and CF/PEEK composites drilled with different bits.…”

Section: Resultsmentioning

confidence: 83%

“…In this work, the cooling rates of CF/PEEK laminates drilled by three drill bits are larger than 1 C/ min. 36 A large cooling rate of laminate in the natural environment results in insufficient time for the spherulites to grow to a larger size. 36 Therefore, there is no…”

Section: Crystal Morphologymentioning

confidence: 99%

“…36 A large cooling rate of laminate in the natural environment results in insufficient time for the spherulites to grow to a larger size. 36 Therefore, there is no…”

Section: Crystal Morphologymentioning

confidence: 99%

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Experimental investigation on effect of tool geometry on thermal and crystallization characteristics in drilling of carbon fiber reinforced PEEK composite

Yuan,

Liu,

Yang

et al. 2024

Polymer Composites

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This paper comprehensively investigated the effect of the tool geometries on heat transfer and special crystallization characteristics in the drilling of carbon fiber‐reinforced polyetheretherketone (CF/PEEK) composite for the first time. Three tools with different geometries (twist, brad, and dagger drill) are carried out on CF/PEEK drilling experiments, and temperature, as well as crystallinity and surface roughness, are introduced to make a comparative evaluation on the effect of the tool geometries. The results show that the drilling temperature is determined by the contact length of the profile between the drill and the material. Correspondingly, better surface quality with lower surface roughness and smoother surface is obtained by using a twist drill due to the heat‐induced PEEK smearing effect. Further, in situ XRD and differential scanning calorimeter (DSC) were used to characterize the crystallization characteristics where crystal phase transformation at different temperatures was measured. The occurring temperature of the strongest crystallization characteristics for CF/PEEK is basically not affected by tool geometries, all at 300°C, and the limiting crystallization temperature is 344.5 ± 0.7°C. The crystallinity is found to be affected by drilling temperature and cooling rate and gradually decreases along the heat transfer direction. This work provides a new sight into the improvement of CF/PEEK drilling.Highlights The effect of tool geometries on thermal and crystallization for CF/PEEK is provided. In situ XRD and DSC are used to characterize crystallization characteristics. The drilling temperature and cooling rate are both determinants of crystallinity. The limiting crystallization temperature of the CF/PEEK composite is 344.5 ± 0.7°C. Heat‐induced PEEK smearing effect improves the surface quality of CF/PEEK drilling.

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Section: Resultsmentioning

confidence: 83%

Section: Crystal Morphologymentioning

confidence: 99%

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Experimental investigation on effect of tool geometry on thermal and crystallization characteristics in drilling of carbon fiber reinforced PEEK composite

Yuan,

Liu,

Yang

et al. 2024

Polymer Composites

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“…The temperature during the processing of CF/PPS composites, such as moulding or curing, can significantly influence the DoC. Different temperature profiles can result in variations in cooling rates, which affect the rate of crystallization and subsequent DoC [23,24] .…”

Section: Degree Of Crystallinity (Doc)mentioning

confidence: 99%

Physical, Thermal and Mechanical Properties of Carbon Fibre/Polyphenylene Sulfide (CF/PPS) Composite at Different Tool Temperatures Fabricated by Hot Press

Emy Aqillah Sharif,

Nadlene Razali,

Hasanudin Hamdan

et al. 2024

ARAM

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Carbon fibre/polyphenylene sulfide (CF/PPS) composites have gained the attention in the aerospace industry due to its excellent impact strength, fire/smoke/toxicity (FST) performance, and chemical resistance. This study investigated the effect of hot press tool temperatures (Tt) on the physical, thermal, and mechanical on CF/PPS composites. The experimental procedure involved using PCL of CF/PPS composite and subjecting it to hot press forming at different tool temperatures ranging from 150°C to 195°C. The physical properties was characterized by surface energy measurement using the sessile drop method. Thermal properties were evaluated through the degree of crystallinity (DoC) determination using differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA) where the percentage of the residual weight is calculated. The mechanical properties was assessed using tensile test. From the results, increasing the Ttwill enhances the surface energy, improving the adhesion and bonding between the matrix and CF, and the thermal stability of the composite materials. At Tt 180°C, the physical, thermal, and mechanical properties of CF/PPS composite component is at their best with the value of surface energy is 35.13%, the DoC is 25.00%, TGA is 74.74% and tensile strength is 793.80 MPa. This study provides valuable insights into the relationship between tool temperature and the physical, thermal, and mechanical properties of CF/PPS composites, offering guidance for manufacturing processes and composite material design in aerospace and other industries.

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“…Several studies have shown that matrix properties influence the interfacial properties [9][10][11] and the mechanical properties [12][13][14][15][16][17][18][19] of composites. During the composite failure process, microcracks initially occur in the matrix [20].…”

Section: Introductionmentioning

confidence: 99%

The Effect of Resin Matrix on the Properties of CF/PEI and CF/PAEK Thermoplastic Composites

Wang,

Zhang,

Gao

et al. 2023

International Journal of Polymer Science

Self Cite

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As the adhesive for composites, the resin matrix directly impacts the molding process and product performance of thermoplastic composites (TPCs). Carbon fiber-reinforced polyetherimide (CF/PEI) and polyaryletherketone (CF/PAEK) composites were prepared by a compression molding process. The interface, interlaminar, and low-speed impact properties of TPCs were studied. The results show that the interfacial shear strength of the CF/PEI composite is ~116 MPa, while the CF/PAEK composite is ~78 MPa. However, the interlaminar and low-speed impact performance of CF/PAEK is better than CF/PEI. Type I fracture toughness ( G IC ) and type II fracture toughness ( G IIC ) of CF/PEI are ~1051 MPa and ~1060 MPa. But those of CF/PAEK are ~1786 MPa and ~2584 MPa, respectively. The compressive strength after the impact of CF/PAEK (~321 MPa) is 40% higher than CF/PEI (~230 MPa).

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The effect of cooling rates on crystallization and low-velocity impact behaviour of carbon fibre reinforced poly(aryl ether ketone) composites

Cited by 25 publications

References 35 publications

Experimental investigation on effect of tool geometry on thermal and crystallization characteristics in drilling of carbon fiber reinforced PEEK composite

Experimental investigation on effect of tool geometry on thermal and crystallization characteristics in drilling of carbon fiber reinforced PEEK composite

Physical, Thermal and Mechanical Properties of Carbon Fibre/Polyphenylene Sulfide (CF/PPS) Composite at Different Tool Temperatures Fabricated by Hot Press

The Effect of Resin Matrix on the Properties of CF/PEI and CF/PAEK Thermoplastic Composites

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