Simultaneously improve the mode <scp>II</scp> interlaminar fracture toughness, flexural properties, and impact strength of <scp>CFRP</scp> composites with short aramid fiber interlaminar toughening

Wang, Yongan; Liu, Xi; Chen, Lifeng; Shen, Wei; Zhu, Lvtao

doi:10.1002/pc.27014

Cited by 20 publications

(15 citation statements)

References 30 publications

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“…For comparing the effect of different short fibers on the toughening effect of the composite interlayer, the results of this experiment were compared with previous studies (Short aramid fiber (SAF) interlaminar toughened CF/EP composites). 31 The basic properties of SCF and SAF, and the results of SAF interlaminar toughened CF/EP composites were shown in the Supporting Information (SI). Figure 9 shows the relationship between the peak load and failure displacement with fiber density in the ENF test for different short fiber interlayer toughened specimens.…”

Section: Comparison Of Enf Test Datamentioning

confidence: 99%

Interlaminar fracture toughness of carbon/epoxy composites laminates toughened by short carbon fiber

et al. 2023

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In this paper, short carbon fiber (SCF) interlaminar toughened carbon fiber reinforced epoxy resin (CF/EP) composite laminates were prepared. The effect of SCF content on the mode II interlaminar fracture toughness (GIIC) and flexural properties of CF/EP composites was investigated. It was shown that the addition of SCF between the plies had an effect on the GIIC of the composites. When the SCF content was 10 g/m2, the GIIC increased from 1506.62 J/m2 to 1995.6 J/m2, which improved by about 32.46%. When the content of SCF was 5 g/m2, the flexural strength and flexural modulus increased by 36.92% and 98.48%, respectively, showing the best performance. The toughening mechanism of SCF was observed by SEM images as SCF debonding and pulling out from the resin and SCF fracture. The present study was also compared with our previous study on short aramid fiber interlaminar toughened CF/EP composites, and the test data and SEM images of the two experiments were compared to analyze the effect of different short fibers on the interlaminar toughening effect, which provides some reference for the selection of interlaminar toughening materials.

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Section: Comparison Of Enf Test Datamentioning

confidence: 99%

Interlaminar fracture toughness of carbon/epoxy composites laminates toughened by short carbon fiber

et al. 2023

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“…[ 1–3 ] AF is compounded with rubber or thermosetting resin for military, industrial, construction, sports, and other applications. [ 4–7 ] The research on aramid fiber reinforced thermoplastic resin is mainly in the thermosetting composite and some thermoplastic composites such as polyurethane(PA). [ 8,9 ] However, the research on the aramid‐reinforced polycarbonate resin did not appear in the study.…”

Section: Introductionmentioning

confidence: 99%

Aramid fiber coated with aramid nanofiber coating to improve its interfacial properties with polycarbonate

Song

Chen

et al. 2023

Polymer Composites

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This study addresses the effect of the coatings prepared from aramid nanofibers (ANFs) on the surface treatment of aramid fiber and reinforced polycarbonate (PC) composite (AF/PC). Aramid fiber's smooth, inert surface bonds poorly with polycarbonate. In this research, the PC‐ANF coating was made by the PC/CH2Cl2 solution, which was modified by aramid nanofibers to improve the interfacial adhesion and compatibility of aramid fiber/PC composites. What's more, the silane (KH570) was added to improve the dispersion and interfacial strength of ANF and PC. The results showed the water contact angle of the aramid fiber modified by PSi‐ANF coating was reduced, indicating the modified fiber has a better wettability. The interfacial bonding strength between PC and aramid fiber increased by 77.2%. The AF/PC composites were prepared by hot‐compression, which the aramid fiber wovens treated with P‐ANF coating, PSi‐ANF coating. The tensile strength, flexural strength, interlaminar shear strength, and impact strength of the AF/PC composite reinforced by AF treated with PSi‐ANF containing 2.0 wt% ANF increased by 62.0%, 81.9%, 49.5%, and 27.6%, respectively. Therefore, this study demonstrates that incorporating ANF interphase may offer an innovative and practical way for enhancing the interface bonding properties of aramid‐reinforced composites.

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“…Therefore, these composites are highly susceptible to the damage and delamination of the laminas. [ 1–5 ]…”

Section: Introductionmentioning

confidence: 99%

Post‐curing and fiber hybridization effects on mode‐II interlaminar fracture toughness of glass/carbon/epoxy composites

et al. 2023

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Failure by delamination is one of the primary concerns in laminated composites. The development and progression of the delamination results in the degradation of composite stiffness affecting its structural integrity and may ultimately result in composite structure failure. Therefore, knowledge of the evolution of delamination resistance and the factors which affect the delamination in composites is of utmost importance for the selection of materials.This study investigates the effect of fiber hybridization and post-curing on mode-II interlaminar fracture toughness (G IIC ) of Glass/Carbon/Epoxy (GCE) composites. Carbon/Epoxy (CE), Glass/Epoxy (GE), and GCE composite laminates were molded employing the process of hand layup technique and postcured at different temperatures. GE laminates exhibited a superior load for delamination and deformation compared to CE and GCE laminates. The hybrid GCE laminates exhibited higher interlaminar fracture toughness compared to non-hybrid GE and CE laminates, which can be attributed to the synergetic effect of Carbon and Glass fibers. The laminates post-cured at 180 C exhibited higher fracture toughness in their corresponding groups. The delaminated surfaces of CE, GE, and GCE laminates were further examined under Scanning electron microscopy (SEM) to understand the effect of post-curing and fiber hybridization on mode-II interlaminar fracture toughness.

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Simultaneously improve the mode II interlaminar fracture toughness, flexural properties, and impact strength of CFRP composites with short aramid fiber interlaminar toughening

Cited by 20 publications

References 30 publications

Interlaminar fracture toughness of carbon/epoxy composites laminates toughened by short carbon fiber

Interlaminar fracture toughness of carbon/epoxy composites laminates toughened by short carbon fiber

Aramid fiber coated with aramid nanofiber coating to improve its interfacial properties with polycarbonate

Post‐curing and fiber hybridization effects on mode‐II interlaminar fracture toughness of glass/carbon/epoxy composites

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