Synergistic toughening on hybrid epoxy nanocomposites by introducing engineering thermoplastic and carbon-based nanomaterials

Tangthana-umrung, Kanokporn; Zhang, Xiaomeng; Grésil, Matthieu

doi:10.1016/j.polymer.2022.124703

Cited by 24 publications

(21 citation statements)

References 47 publications

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“…A different toughening mechanism has been proposed compared to the above studies, and which would involve the debonding of the exfoliated nanoparticles but also a bifurcation of the cracks as well as an induced plastic deformation of the matrix [ 144 ]. A similar improvement was obtained by Tangthana-umrung et al [ 145 ] for the K C of epoxy resin composites containing PES, graphene nanoplatelets (GNPs) and carbon nanotubes (CNTs). The addition of 5 wt% PES improved the mechanical properties and thermal stability including 35% and 40% increases in the tensile strength and fracture toughness, K C , respectively.…”

Section: Hybrid Epoxy Nanocompositessupporting

confidence: 80%

“…The self-assembly of BCP molecules into well-dispersed wormlike micelles, which are more efficient than spherical micelles, also contributes to the K C increase. As in most of the works previously described [ 85 , 94 , 110 , 139 , 144 , 145 ], the improvement in the properties was explained by the crack tip blunting, crack bridging, particle debonding and shear yielding of the matrix. When this BCP was incorporated with silica nanoparticles in the epoxy formulation, the BCP micelles were fixed on the surfaces of the nanoparticles, thus limiting the agglomeration of the latter [ 164 ].…”

Section: Hybrid Epoxy Nanocompositesmentioning

confidence: 67%

“…Thermoplastics have been intensively studied for about four decades as toughening agents because they generally do not cause a significant reduction in the modulus, yield strength and glass transition temperature, as in the case of liquid rubbers. Various ductile thermoplastics were investigated as an alternative to reactive rubber for improving the mechanical properties of the epoxy resins [ 135 , 136 , 137 , 138 , 139 , 140 , 141 , 142 , 143 , 144 , 145 , 146 , 147 , 148 , 149 , 150 , 151 , 152 , 153 , 154 , 155 , 156 ]. When mixed with an engineering polymer, the epoxy matrix can form an interpenetrating network which would prevent the agglomeration of the nanoparticles and thus allow their unform dispersion in the blend.…”

Section: Hybrid Epoxy Nanocompositesmentioning

confidence: 99%

“…Another alternative to toughen epoxy resins was the use of tough engineering thermoplastics, such as polysulfone (PSU), polyethersulphone (PES), poly (ether ether ketone) (PEEK), polyetherimide (PEI), acrylonitrile–butadiene–styrene copolymer (ABS), polycarbonate (PC), poly(styrene-co-acrylonitrile) (SAN) and high impact polystyrene (HIPS) [ 141 , 142 , 143 , 144 , 145 , 146 , 147 ]. Wang et al [ 141 ] used both polysulfone (PSU) and graphene oxide (GO) to toughen DEGBA epoxy resin.…”

Section: Hybrid Epoxy Nanocompositesmentioning

confidence: 99%

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Hybrid Epoxy Nanocomposites: Improvement in Mechanical Properties and Toughening Mechanisms—A Review

Białkowska¹,

Bakar²,

Kucharczyk

et al. 2023

Polymers

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This article presents a review on the recent advances in the field of ternary diglycidyl ether of bisphenol A epoxy nanocomposites containing nanoparticles and other modifiers. Particular attention is paid to their mechanical and thermal properties. The properties of epoxy resins were improved by incorporating various single toughening agents, in solid or liquid states. This latter process often resulted in the improvement in some properties at the expense of others. The use of two appropriate modifiers for the preparation of hybrid composites, possibly will show a synergistic effect on the performance properties of the composites. Due to the huge amount of modifiers that were used, the present paper will focus mainly on largely employed nanoclays with modifiers in a liquid and solid state. The former modifier contributes to an increase in the flexibility of the matrix, while the latter modifier is intended to improve other properties of the polymer depending on its structure. Various studies which were carried out on hybrid epoxy nanocomposites confirmed the occurrence of a synergistic effect within the tested performance properties of the epoxy matrix. Nevertheless, there are still ongoing research works using other nanoparticles and other modifiers aiming at enhancing the mechanical and thermal properties of epoxy resins. Despite numerous studies carried out so far to assess the fracture toughness of epoxy hybrid nanocomposites, some problems still remain unresolved. Many research groups are dealing with many aspects of the subject, namely the choice of modifiers and preparation methods, while taking into account the protection of the environment and the use of components from natural resources.

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Section: Hybrid Epoxy Nanocompositessupporting

confidence: 80%

Section: Hybrid Epoxy Nanocompositesmentioning

confidence: 67%

Section: Hybrid Epoxy Nanocompositesmentioning

confidence: 99%

Section: Hybrid Epoxy Nanocompositesmentioning

confidence: 99%

See 2 more Smart Citations

Hybrid Epoxy Nanocomposites: Improvement in Mechanical Properties and Toughening Mechanisms—A Review

Białkowska¹,

Bakar²,

Kucharczyk

et al. 2023

Polymers

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“…The literature is not conclusive about the effect of adding nanofillers in general—or CNTs in particular—on the phase behaviour of epoxy/thermoplastic blends. While some authors have reported no effect when different nanofillers were added to epoxy/thermoplastic systems [ 64 , 65 ], others have reported a drop in the T g when CNTs were added, attributing it to the miscibilisation of the thermoplastic caused by the CNTs [ 66 , 67 ].…”

Section: Resultsmentioning

confidence: 99%

Effect of the Simultaneous Addition of Polycaprolactone and Carbon Nanotubes on the Mechanical, Electrical, and Adhesive Properties of Epoxy Resins Cured with Ionic Liquids

et al. 2023

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Electrically-conductive epoxy nanocomposites (NCs) with improved mechanical and adhesive properties were achieved through the combined addition of poly(ε-caprolactone) (PCL) and carbon nanotubes (CNTs). Three different ionic liquids (ILs) were used as dual role agents, i.e., as both curing and dispersing agents. Regardless of the IL used, the epoxy/PCL matrix of the NCs showed a single-phase behaviour and similar glass transition (Tg) and crosslinking density (νe) values to the unfilled epoxy/PCL/IL systems. Although the CNTs were more poorly dispersed in the epoxy/PCL/CNT/IL NCs than in the reference epoxy/CNT/IL NCs, which led to slightly lower electrical conductivity values, the epoxy/PCL/CNT/IL NCs were still semiconductive. Their low-strain mechanical properties (i.e., flexural modulus and flexural strength) were similar or better than those of the reference epoxy/IL systems and their high-strain mechanical properties (i.e., deformation at break and impact strength) were significantly better. In addition, the positive effects of the PCL and the CNTs on the adhesive properties of the epoxy/IL system were combined. The substitution of ILs for traditional amine-based curing agents and biodegradable PCL for part of the epoxy resin represents an important advance on the road towards greater sustainability.

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Synthesis and properties of silicone‐epoxy polymer with long silicone chain

Wang

et al. 2023

J of Applied Polymer Sci

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Silicone-epoxy polymers (SEP) with different n(Si H)/n(C C) ratios were synthesized through the hydrosilylation reaction of diallyl bisphenol A epoxy resin (DADGEBA) and hydrogen-containing silicone oil (HS) with long silicone chain.The structure of SEP was characterized by Fourier transform infrared spectroscopy (FTIR), nuclear magnetic resonance spectroscopy ( 1 H NMR), and gel permeation chromatography (GPC), and the compatibility of the curing system was studied by dynamic mechanical analysis (DMA) and scanning electron microscope (SEM). DMA and SEM results showed that after curing with epoxy curing agent, the compatibility of the curing system was excellent. The mechanical, bonding, and thermal properties of the cured product were also measured. The cured product exhibited superior thermal stability and mechanical properties. High toughness of SEP was provided by the long silicone chain, and high mechanical strength was provided by the cross-linking networks. The maximum tensile strength was 15.64 MPa, the maximum elongation at break was 62%, and the maximum tensile lap-shear strength was 8.89 MPa. The silicone-epoxy polymers can be widely used in electronic packaging in the future.

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Synergistic toughening on hybrid epoxy nanocomposites by introducing engineering thermoplastic and carbon-based nanomaterials

Cited by 24 publications

References 47 publications

Hybrid Epoxy Nanocomposites: Improvement in Mechanical Properties and Toughening Mechanisms—A Review

Hybrid Epoxy Nanocomposites: Improvement in Mechanical Properties and Toughening Mechanisms—A Review

Effect of the Simultaneous Addition of Polycaprolactone and Carbon Nanotubes on the Mechanical, Electrical, and Adhesive Properties of Epoxy Resins Cured with Ionic Liquids

Synthesis and properties of silicone‐epoxy polymer with long silicone chain

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