Multifunctional Additive: A novel regulate strategy for improving mechanical property, aging life and fire safety of EVA composites

Jia, Pengfei; Yu, Fuhao; Tao, Youji; Sun, Pengfei; Xing, Weiyi; Jie, Ganxin; Hu, Yuan; Wang, Bibo

doi:10.1016/j.cej.2023.145283

Cited by 44 publications

(6 citation statements)

References 46 publications

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“…Studies have also reported on the enhanced electromagnetic shielding effectiveness of composite electromagnetic shielding materials. − Based on this, the enhanced EMI shielding performance of Ag NW/MXene/PMMA composite films toward addition of MXene nanosheet can be ascribed to the following reasons. First, the MXene forms interfacial polarization and electric dipoles with the Ag NW network.…”

Section: Resultsmentioning

confidence: 99%

Flexible Silver Nanowire and Ti₃C₂T_x MXene Composite Films for Electromagnetic Interference Shielding

Zhang,

Xu,

Gao

et al. 2024

ACS Appl. Nano Mater.

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In various fields, the innovation of optoelectronic devices crucially depends on flexible, transparent materials that shield against electromagnetic interference. Herein, the fabrication of flexible transparent electromagnetic interference shielding effectiveness (EMI SE) composite films on PET substrates is achieved using silver nanowires (Ag NWs) and two-dimensional nanosheets (Ti 3 C 2 T x ). The uniform Ag NWs with high aspect ratio as a basic conductive network are synthesized using a modified polyol method, which is further optimized through combining with twodimensional multilayer MXene nanosheets. The Ag NW/MXene composite films acquire a sandwich structure after sequential layering of Ag NW/MXene, finalized by spin-coated PMMA layer. It is worth noting that the addition of MXene nanosheet can decrease surface roughness and increase conductivity via filling the gap of Ag NW network. The Ag NW 4 /MXene 4 composite films with excellent photoelectric performance are suitable for the commercial applications considering the production costs. Furthermore, the fabricated Ag NW/ MXene/PMMA composite films demonstrate exceptional flexibility, maintaining integrity after 10 000 continuous bending cycles, and exhibit remarkable stability under harsh conditions, specifically in environments of 80 °C and 80% relative humidity (RH) for duration of 30 days. By finely tuning the concentrations of Ag NW and MXene nanosheets, these composite films attain significant EMI SE level of 35 dB in the X-band. In the EMI shielding mechanism, the absorption component of the shielding effectiveness (SE) is shown to play an important role. The integration of MXene into the composite film markedly improves its EMI shielding effectiveness by boosting the conductivity of the Ag NW network. Furthermore, the multireflection originating from the inner MXene nanosheet is another pathway to promote the EMI shielding performance, which is always neglected for the thin films. Taken together, the introduction and understanding of MXene into Ag NW transparent films provide inspiration for the development of advanced EMI shielding materials for wide applications.

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Section: Resultsmentioning

confidence: 99%

Flexible Silver Nanowire and Ti₃C₂T_x MXene Composite Films for Electromagnetic Interference Shielding

Zhang,

Xu,

Gao

et al. 2024

ACS Appl. Nano Mater.

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“…Without compromising the ability of antioxidants to scavenge free radicals, the covalent bonding at the reaction interface prevents migration and volatility. The chemical bonding greatly enhances the antimigration performance and extraction resistance of antioxidants, leading to long-term stable antioxidant effects; and (III) one of the primary reasons for the easy agglomeration of inorganic nanomaterials is their high surface energy and hydrophilicity. Modifying the surface of inorganic nanoparticles with the antioxidant changes the surface properties from hydrophilic to hydrophobic, reduces the surface energy, and facilitates the dispersion in the polymer …”

Section: Inorganic Immobilizationmentioning

confidence: 99%

Antimigration Polypropylene Antioxidants: A Review

Li,

Zhang,

Jiang

et al. 2024

Ind. Eng. Chem. Res.

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Hindered phenolic antioxidants have been extensively recognized and applied to boost the heat resistance and oxidative aging performance of poly(propylene) (PP) composites. Low-molecular-weight antioxidants are easy to volatilize, migrate, and be extracted from PP or PP-based products, which can directly reduce the antithermal oxidative aging effect of PP and its composites, and it can contaminate food or drugs under its packaging. The design of an efficient and durable antioxidant with antimigration performance has drawn the attention of researchers. Currently, three main approaches are explored: (I) enhancement of molecular weight, that is, high molecular weight of antioxidants can stimulate the structure stability and the resistance toward migration; (II) inorganic immobilization, which involves immobilizing the antioxidants on inorganic substrate to enhance the dispersion and the antimigration performance; and (III) intercalation-mediated assembly, which involved intercalating low-molecular-weight antioxidants into the interlayer region of a layered host to boost antimigration performance based on the host–guest interaction.

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“…Under high magnification, K-ADP is seen to be embedded in matrix without obvious interfacial void, indicating that K-ADP is well compatible with matrix. 30…”

Section: Dispersion Of K-adp In Epoxy Matrixmentioning

confidence: 99%

Combination effect of ADP‐intercalated kaolinite and ammonium polyphosphate on simultaneously enhancing the flame retardancy and smoke suppression of epoxy resins

Yan,

Guan,

Wei

et al. 2024

Vinyl Additive Technology

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In this article, ammonium dihydrogen phosphate (ADP) was successfully intercalated into kaolinite (Kaol) to prepare a novel synergist named ADP‐intercalated kaolinite (K‐ADP). The chemical structure of K‐ADP was thoroughly characterized using various analytical methods, and then K‐ADP was combined with ammonium polyphosphate (APP) to enhance the fire safety of epoxy resins (EPs). The flammability results indicate that the combination of K‐ADP and APP exerts super positive effects on reducing the heat release and smoke emission of EPs than the mixture of Kaol and APP. Especially, the EP/8 wt% APP/2 wt% K‐ADP has a super LOI value of 33.2% and reaches a UL94 V‐0 rating accompanying with a 29.1% reduction in total heat release (THR) and a 72.7% reduction in total smoke production (TSP) compared to pure EP. The morphology and component analyses show that the combination of K‐ADP and APP facilitates the formation of more phosphorus‐rich crosslinking and aromatic structures in the condensed phase to enhance the compactness and intumescence of char layer, which effectively segregates heat, combustible compounds and smoke particles. Thermogravimetric analysis shows that the combination of K‐ADP and APP exerts super char‐forming ability in EPs, and the residual weight of EP/8 wt% APP/2 wt% K‐ADP at 800°C increases from 7.8% of pure EP to 19.7%. Mechanical test shows that the addition of K‐ADP displays the less adverse effect on the mechanical properties of EP composites compared to Kaol due to the better compatibility of K‐ADP and epoxy matrix with DSC analysis support.Highlights A novel ammonium dihydrogen phosphate‐intercalated kaolinite (K‐ADP) was synthesized. APP/K‐ADP system exerts super positive effect on reducing fire hazards of EPs. APP/K‐ADP system takes effect in both gas phase and condensed phase. APP/K‐ADP has a satisfying balance between fire safety and mechanical properties in EPs.

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Multifunctional Additive: A novel regulate strategy for improving mechanical property, aging life and fire safety of EVA composites

Cited by 44 publications

References 46 publications

Flexible Silver Nanowire and Ti₃C₂T_x MXene Composite Films for Electromagnetic Interference Shielding

Flexible Silver Nanowire and Ti₃C₂T_x MXene Composite Films for Electromagnetic Interference Shielding

Antimigration Polypropylene Antioxidants: A Review

Combination effect of ADP‐intercalated kaolinite and ammonium polyphosphate on simultaneously enhancing the flame retardancy and smoke suppression of epoxy resins

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Multifunctional Additive: A novel regulate strategy for improving mechanical property, aging life and fire safety of EVA composites

Cited by 44 publications

References 46 publications

Flexible Silver Nanowire and Ti3C2Tx MXene Composite Films for Electromagnetic Interference Shielding

Flexible Silver Nanowire and Ti3C2Tx MXene Composite Films for Electromagnetic Interference Shielding

Antimigration Polypropylene Antioxidants: A Review

Combination effect of ADP‐intercalated kaolinite and ammonium polyphosphate on simultaneously enhancing the flame retardancy and smoke suppression of epoxy resins

Contact Info

Product

Resources

About

Flexible Silver Nanowire and Ti₃C₂T_x MXene Composite Films for Electromagnetic Interference Shielding

Flexible Silver Nanowire and Ti₃C₂T_x MXene Composite Films for Electromagnetic Interference Shielding