Matrix hybridization in the interlayer for carbon fiber reinforced composites

Drakonakis, Vasileios M.; Velisaris, Chris N.; Seferis, James C.; Doumanidis, Charalabos C.; Wardle, Brian L.; Papanicolaou, George

doi:10.1002/pc.20996

Cited by 26 publications

(22 citation statements)

References 16 publications

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“…1 Many industrial sectors are adopting a variety of engineered nanomaterials (ENMs) for improved strength, weight, texture, biocidal and optical properties tailored to specific applications. 2–3 Examples of such NEPs include paint coatings, with a variety of submicron/nanoscale pigment (metal and oxide) powders; 4 toner formulations; 5–7 polymer- and carbon-matrix nanocomposites; 8 sintered compacts made of metal and oxide nanoparticles; 9 super hard coatings. 10 …”

Section: Introductionmentioning

confidence: 99%

An integrated methodology for the assessment of environmental health implications during thermal decomposition of nano-enabled products

Sotiriou

Singh

Zhang

et al. 2015

Environ. Sci.: Nano

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The proliferation of nano-enabled products (NEPs) renders human exposure to engineered nanomaterials (ENMs) inevitable. Over the last decade, the risk assessment paradigm for nanomaterials focused primarily on potential adverse effect of pristine, as-prepared ENMs. However, the physicochemical properties of ENMs may be drastically altered across their life-cycle (LC), especially when they are embedded in various NEP matrices. Of a particular interest is the end-of-life scenario by thermal decomposition. The main objective of the current study is to develop a standardized, versatile and reproducible methodology that allows for the systematic physicochemical and toxicological characterization of the NEP thermal decomposition. The developed methodology was tested for an industry-relevant NEP in order to verify its versatility for such LC investigations. Results are indicative of potential environmental health risks associated with waste from specific NEP families and prompt for the development of safer-by-design approaches and exposure control strategies.

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Section: Introductionmentioning

confidence: 99%

An integrated methodology for the assessment of environmental health implications during thermal decomposition of nano-enabled products

Sotiriou

Singh

Zhang

et al. 2015

Environ. Sci.: Nano

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“…The number of consumer products containing ENPs is growing at a similarly rapid pace, and is expected to reach 10,000 by the year 2020 [3]. ENPs can be found in paint coatings with a variety of submicron/nanoscale pigment (metal and oxide) powders [4]; toner formulations [5]; polymer- and carbon-matrix nanocomposites with montmorillonite clays, carbon nanotubes and graphene [6]; and sunscreens/cosmoceuticals. Thus, human exposure to ENPs becomes inevitable and has indeed been demonstrated [7,8].…”

mentioning

confidence: 99%

Assessing The Impact of Engineered Nanoparticles on Wound Healing Using A Novel In Vitro Bioassay

Zhou¹,

Watson²,

Pizzo

et al. 2014

Nanomedicine (Lond.)

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Aim As engineered nanoparticles (ENPs) increasingly enter consumer products, humans become increasingly exposed. The first line of defense against ENPs is the epithelium, the integrity of which can be compromised by wounds induced by trauma, infection, or surgery, but the implications of ENPs on wound healing are poorly understood. Materials & methods Herein, we developed an in vitro assay to assess the impact of ENPs on the wound healing of cells from human cornea. Results & discussion We show that industrially relevant ENPs impeded wound healing and cellular migration in a manner dependent on the composition, dose and size of the ENPs as well as cell type. CuO and ZnO ENPs impeded both viability and wound healing for both fibroblasts and epithelial cells. Carboxylated polystyrene ENPs retarded wound healing of corneal fibroblasts without affecting viability. Conclusion Our results highlight the impact of ENPs on cellular wound healing and provide useful tools for studying the physiological impact of ENPs.

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“…In the case of impact tests carried out on woven CFRPs the absorbed energy was increased at the rate of 64% compared to the neat ones. Drakonakis et al [9] investigated the role of the host matrix and the micro-particle interleaving effect to the multilayer structures. From the three different matrices which were utilized, it was shown that the dicyanate was the toughest epoxy while the mode II fracture characteristics were considerably increased with the incorporation of Nylon 6 micro-particles.…”

mentioning

confidence: 99%

Mode II fracture toughening and healing of composites using supramolecular polymer interlayers

Kostopoulos¹,

Κοτρώτσος²,

Baltopoulos³

et al. 2016

Express Polym. Lett.

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Abstract. This study focuses on the transfer of the healing functionality of supramolecular polymers (SP) to fibre reinforced composites through interleaving. SPs exhibiting self-healing based on hydrogen bonds were formed into films and were successfully incorporated into carbon fibre composites. The effect of the SP interleaves on in-plane fracture toughness and the subsequent healing capability of the hybrid composites were investigated under mode II fracture loading. The fracture toughness showed considerable increase since the maximum load (P max ) of the hybrid composite approximately doubled, and consequently the mode II interlaminar fracture toughness energy (G IIC ) exhibited an increase reaching nearly 100% compared to the reference composite. The healing component was activated using external heat. P max and G IIC recovery after activation were measured, exhibiting a healing efficiency after the first healing cycle close to 85% for Pmax and 100% for G IIC , eventually dropping to 80% for P max while G IIC was retained around 100% even after the fourth healing cycle. Acoustic Emission activity during the tests was monitored and was found to be strongly reduced due to the presence of the SP.

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Matrix hybridization in the interlayer for carbon fiber reinforced composites

Cited by 26 publications

References 16 publications

An integrated methodology for the assessment of environmental health implications during thermal decomposition of nano-enabled products

An integrated methodology for the assessment of environmental health implications during thermal decomposition of nano-enabled products

Assessing The Impact of Engineered Nanoparticles on Wound Healing Using A Novel In Vitro Bioassay

Mode II fracture toughening and healing of composites using supramolecular polymer interlayers

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