Enhancement of interfacial strength of overmolded hybrid structures of short fiber reinforced polyamide 6 on continuous fiber reinforced epoxy composites under various surface pretreatments

Ding, Yudong; Tang, Honghu; Shi, Wuping; He, Qingzhu; Zhai, Zhanyu

doi:10.1002/pc.26432

Cited by 14 publications

(12 citation statements)

References 27 publications

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“…These increments in mechanical performance could be attributed to the strengthening and toughening effects of the SCFs in the GE composite. [45][46][47] The inherent strength of the SCFs brought about the strengthening of the composite. [48,49] The length of the SCFs was higher than the critical fiber length (L c ) for the carbon fiber epoxy system, and the SCFs were expected to bear high stresses.…”

Section: Flexural Test At Different Temperaturesmentioning

confidence: 99%

Elevated temperature mechanical behavior of waste short carbon fiber incorporated glass fiber/epoxy composites

et al. 2022

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The fabrication of carbon fiber-reinforced polymer composites generates vast amounts of waste carbon fiber. In the present work, these waste carbon fibers were added in varying contents (0.1, 0.3, and 0.5 wt%) to glass fiber/epoxy (GE) composite as short carbon fibers (SCFs) to improve its ambient and elevated temperature mechanical performance. The flexural and tensile behavior of the SCF modified GE composites were assessed at 30, 50, 70, and 110 C.The most significant improvement in mechanical performance was achieved by adding only 0.1 wt% of SCF into GE composite across most of the temperatures. At elevated temperatures, all the SCF-modified GE composites showed superior mechanical performance over the control GE composite. An important correlation between SCF content in GE composite and elevated temperature mechanical performance enhancement has been discussed. Differential scanning calorimetry was performed to understand the effect of SCF addition on GE composite's glass transition behavior. Fractography was conducted to study the various failure mechanisms at ambient and elevated temperatures.

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Section: Flexural Test At Different Temperaturesmentioning

confidence: 99%

Elevated temperature mechanical behavior of waste short carbon fiber incorporated glass fiber/epoxy composites

et al. 2022

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“…According to the literature, there are mechanically-based and chemically-based approaches to improve the bonding strength between thermoset and thermoplastic matrices. 41,42 As a future work, an experimental study will be conducted to evaluate the effect of interface properties on the bending performance of interlayer hybrid thermoset-thermoplastic composites.…”

Section: Limitations and Future Workmentioning

confidence: 99%

“…Bauer et al 37 improved the interfacial strength of hybrid thermoset-thermoplastic composites (carbon/epoxy and short glass/polyamide) using low-pressure plasma. Three different surface treatment techniques (surface silanization, CO 2 laser ablation and plasma treatment) were adopted by Ding et al 41 to assess the interface properties of hybrid thermoset-thermoplastic composites. Based on their results, CO2 laser ablation technique yielded highest interface strength in comparison to other techniques.…”

Section: Introductionmentioning

confidence: 99%

Assessing the tensile properties of interlayer hybrid thermoset-thermoplastic composites

Goodarz

Behzadnia

Dastan

2022

Journal of Industrial Textiles

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Though fiber reinforced thermoset composites exhibit excellent rigidity and strength while being lightweight, they suffer from low toughness and brittle failure, which is unfavorable. On the other hand, fiber reinforced thermoplastic composites are good energy absorbers, damage resistant and recyclable; however, these materials exhibits insufficient rigidity. As a solution, the interlayer hybridization of glass fiber reinforced thermoset (GTS) and glass fiber reinforced thermoplastic (GTP) composites is proposed. This study aims at investigating the tensile properties of interlayer hybrid thermoset-thermoplastic composites. In this regard, two non-hybrid and two hybrid composite samples (GTS2-GTP and GTS4-GTP) were fabricated using common fabrication techniques: hand lay-up and hot compression molding. Both hybrid composite samples were fabricated in such a manner that GTP was sandwiched between two GTS plates. Based on the tensile test results, the failure strain of GTS sample was improved due to the interlayer hybridization with GTP. Non-hybrid composite samples exhibited one load drop in their tensile stress-strain behavior, while interlayer hybrid composites showed two load drops, which resulted in toughness increment. Moreover, hybrid thermoset-thermoplastic composites outperformed non-hybrid composites in terms of post-impact tensile properties.

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“…With the pressing demand for lightweight construction in automotive industry, the optimal and intelligent integration of different lightweight materials into a single hybrid structure has been developed to satisfy the requirements of novel lightweight components. [1,2] Accordingly, the effective bonding of different materials plays an important role in determining the mechanical performance of hybrid structure. The current technologies for joining different materials in a hybrid structure usually involve mechanical fastening, [3] welding, [4] and adhesive bonding.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation and molecular dynamics simulations of plasma treatment on the interface strength of overmolded hybrid fiber reinforced polypropylene composites

et al. 2022

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Overmolded hybrid fiber reinforced thermoplastic composites (hybrid thermoplastic composites) composed of continuous fiber and short fiber reinforcement benefit from high mechanical performance, geometric complexity as well as low production cycle times. The effective bonding of continuous fiber reinforced part and injection molding compounds plays a vital role in controlling the mechanical performance of hybrid composites. In this present work, plasma treatment was applied on continuous fiber reinforced polypropylene composites laminate for increasing interface strength of hybrid composites. The effect of the plasma treatment was studied through experiments and molecular dynamics (MD) simulation. The results show that plasma treatment increases the interface strength of hybrid composites because of the generation of polar groups of OH, COOH, and NH2. The contribution of each aspect to the improved interface strength was quantified by MD simulation. It is found that these active functional groups can promote the diffusion coefficient at interface. Moreover, the introduction of NH2 is more likely to enhance the bonding strength from the perspective of generated interaction energy at the interface.

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Enhancement of interfacial strength of overmolded hybrid structures of short fiber reinforced polyamide 6 on continuous fiber reinforced epoxy composites under various surface pretreatments

Cited by 14 publications

References 27 publications

Elevated temperature mechanical behavior of waste short carbon fiber incorporated glass fiber/epoxy composites

Elevated temperature mechanical behavior of waste short carbon fiber incorporated glass fiber/epoxy composites

Assessing the tensile properties of interlayer hybrid thermoset-thermoplastic composites

Experimental investigation and molecular dynamics simulations of plasma treatment on the interface strength of overmolded hybrid fiber reinforced polypropylene composites

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