Polymer Composites with Improved Dielectric Properties: A Review

Ghule, Babaji; Laad, Meena

doi:10.15407/ujpe66.2.166

Cited by 13 publications

(11 citation statements)

References 64 publications

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“…At low frequencies, the period of the applied electric field is longer than the relaxation time, which makes the material easily to be polarized, thus leading to an increased dielectric constant. As for SIEEA, it is difficult to restrict the polar groups in a highly elastic state at room temperature due to a low glass transition temperature of 11.9 °C (Figure S3), which will increase the dielectric constant significantly . Furthermore, the bulky phenyl siloxane moieties increase the free volume and restrict the motion of the polar groups of SIPEEA and SIDPEEA, leading to even lower dielectric constants.…”

Section: Resultsmentioning

confidence: 99%

Eugenol-Based Siloxane Acrylates for Ultraviolet-Curable Coatings and 3D Printing

Zheng

Cai

Zhang³

et al. 2022

ACS Appl. Polym. Mater.

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To explore more sustainable, safer UV-curable acrylates, a series of bio-based acrylates (SIEEA, SIPEEA, and SIDPEEA) are synthesized from eugenol and siloxanes under mild conditions without any solvent. The molecular structures of the acrylates are characterized, and the acrylates exhibit much lower viscosities than a commercial bisphenol A glycol dimethacrylate (BisGMA) does. The synthesized acrylates can be well cured under UV radiation to form thin films and thick 3D objects. The cured acrylates display significantly improved thermal properties and hydrophobicity and a decreased dielectric constant as low as 3.0 (1 kHz) due to the siloxane backbones. Moreover, they are low in toxicity with the cytotoxicity value above 80%, which is far lower than that of BisGMAs. More interestingly, SIEEA is used as a UV-curable ink and successfully shaped into objects such as chess pieces and a dental model with a high resolution by 3D printing. To summarize, these eugenol-based siloxane acrylates can be readily synthesized, showing a good promise for UV-curable coatings and 3D printing with high thermal stability, low dielectric constant, and low toxicity.

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Section: Resultsmentioning

confidence: 99%

Eugenol-Based Siloxane Acrylates for Ultraviolet-Curable Coatings and 3D Printing

Zheng

Cai

Zhang³

et al. 2022

ACS Appl. Polym. Mater.

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“…45 Ghule and Laad reviewed the impact of polymer and filler types, sizes, shapes, loading levels, chemical treatment, and composite preparation on the dielectric response of polymer nanocomposites (PNC) for energy storage applications. 46 Zha et al…”

Section: Introductionmentioning

confidence: 99%

“…Bhuvaneswari and Reddy provided an overview of composite dielectric components in electronic products reinforced with natural fibers, in which the dielectric properties of chemically treated and untreated biofibers and biofiber‐based composites at different frequencies and fiber content were discussed 45 . Ghule and Laad reviewed the impact of polymer and filler types, sizes, shapes, loading levels, chemical treatment, and composite preparation on the dielectric response of polymer nanocomposites (PNC) for energy storage applications 46 . Zha et al focused on high permittivity polymer‐based dielectrics for electric energy storage, summarizing the role of the nanofiller‐matrix interface and processing conditions in improving the permittivity of PNC 39 .…”

Section: Introductionmentioning

confidence: 99%

Dielectric characterization of fiber‐ and nanofiller‐reinforced polymeric materials

Quader,

Narayanan,

Caldona

2024

J of Applied Polymer Sci

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This review provides an in‐depth analysis of the electrical responses and relaxation behaviors of various polymeric materials including fiber‐reinforced polymer composites, polymer nanocomposites (PNC), and nanofiller‐reinforced polymeric films and coatings using dielectric spectroscopy (DS). The underlying theory of DS, corresponding instrumentation, various dielectric parameters, relevant equations, interpretations, and polarization mechanisms are thoroughly explored. The impact of synthetic and natural fibers and a diverse range of nanofillers on the dielectric responses and relaxation mechanisms of fiber‐reinforced composites, and PNC and films, respectively, are also examined. For each summarized article, we provide an overview of the composite or film preparation, followed by concise explanations of the dielectric behaviors under diverse conditions, including variations in temperature, frequency, moisture levels, fiber/filler ratios, and chemical treatment. In essence, this review contributes to a nuanced understanding of the intricate relationship between material structure, properties, and performance via DS data interpretation across a spectrum of scenarios.

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“…As the polymer has stretching quality, and due to its regular arrangement pattern, it can be used in several architectural designs. Large numbers of polymer composites have been developed as matrix incorporation with different fillers, and their effects on size and shapes [14,15] were reported.…”

Section: Introductionmentioning

confidence: 99%

“…Its suitability and compatibility with other polymer and materials is due to the chemical inertness property of the polymer. PMMA is an amorphous, low cost, chemically stable, strongly hydrophilic and highly transparent polymer [6,14,15]. Its good gelatinizing and high solvent properties, good outdoor weather ability and excellent environmental stability make it popular for researchers working in the broad field of material science.…”

Section: Introductionmentioning

confidence: 99%

Tuning of Dielectric Properties of Polymers by Composite Formation: The Effect of Inorganic Fillers Addition

Deeba

Shrivastava

Bafna³

et al. 2022

J. Compos. Sci.

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Polymer blend or composite, which is a combination of two or more polymers and fillers such as semiconductors, metals, metal oxides, salts and ceramics, are a synthesized product facilitating improved, augmented or customized properties, and have widespread applications for the achievement of functional materials. Polymer materials with embedded inorganic fillers are significantly appealing for challenging and outstanding electric, dielectric, optical and mechanical applications involving magnetic features. In particular, a polymer matrix exhibiting large values of dielectric constant (ε′) with suitable thermal stability and low dielectric constant values of polymer blend, having lesser thermal stability, together offer significant advantages in electronic packaging and other such applications in different fields. In this review paper, we focused on the key factors affecting the dielectric properties and its strength in thin film of inorganic materials loaded poly methyl meth acrylate (PMMA) based polymer blend (single phase) or composites (multiple phase), and its consequences at low and high frequencies are explored. A wide range of different types of PMMA based polymer blends or composites, which are doped with different fillers, have been synthesized with specific tailoring of their dielectric behavior and properties. A few of them are discussed in this manuscript, with their different preparation techniques, and exploring new ideas for modified materials.

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Polymer Composites with Improved Dielectric Properties: A Review

Cited by 13 publications

References 64 publications

Eugenol-Based Siloxane Acrylates for Ultraviolet-Curable Coatings and 3D Printing

Eugenol-Based Siloxane Acrylates for Ultraviolet-Curable Coatings and 3D Printing

Dielectric characterization of fiber‐ and nanofiller‐reinforced polymeric materials

Tuning of Dielectric Properties of Polymers by Composite Formation: The Effect of Inorganic Fillers Addition

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