Biodegradable nanocomposite derived from PLA/PBAT blends with transition metal cation-doped porous clay heterostructures for flexible capacitor applications

Chotiradsirikun, Suchinda; Guo, Ruyan; Bhalla, A. S.; Manuspiya, Hathaikarn

doi:10.1080/00150193.2021.2014259

Cited by 2 publications

(5 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The dielectric constants of PLA-Ag/PCH hybrid films increased dramatically compared to those of the PLA film and PLA–PCH hybrid films, which might be attributed to the high dipole polarization of additives or the interfacial polarization (Magwell–Wagner–Sillars polarization). Such interfacial dipole polarization will be increased when the charges are stored at the interface between the inorganic filler and the polymer matrix . Therefore, interfacial polarization has a vital role in enhancing the dielectric properties of biopolymers.…”

Section: Resultsmentioning

confidence: 99%

“…Up to now, a few researchers have reported on the incorporation of PLA and metal-doped PCH. Chotiradsirikun et al exhibited the performance in the dielectric properties of PLA/PBAT by adding Mn-doped PCH. They reported that the dielectric constant of Mn-doped PCH with a concentration of Mn 0.2 mol/5 g of PCH was approximately 65.…”

Section: Resultsmentioning

confidence: 99%

“…Unfortunately, polymers have a low dielectric constant. To enhance their dielectric properties, many hybrid polymers made from biodegradable polymers have been developed. , …”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Nano-Silver-Coated Porous Clay Heterostructure Fillers for PLA and Biaxially Oriented Poly(lactic acid) Dielectric Films

Khankhuean

Sukthavorn

Nootsuwan

et al. 2023

ACS Appl. Polym. Mater.

View full text Add to dashboard Cite

In this work, poly(lactic acid) (PLA) and nano-silver-coated porous clay heterostructure (PCH) hybrid films were successfully fabricated by a twin-screw extruder. Because of the low dielectric constant of PLA, nano-silver and PCH were employed to enhance the dielectric properties of PLA, and nano-silver-coated porous clay heterostructures (Ag/PCH) with different concentrations of Ag were synthesized by the green process using ascorbic acid as a reducing agent. The results revealed that 1 wt % of Ag-coated PCH (Ag/PCH1) exhibited the highest dielectric constant of up to 40. The physical, chemical, thermal, mechanical, and dielectric properties of pristine PLA and hybrid films were studied. The results indicated that adding Ag/PCH fillers could enhance the dielectric properties of hybrid films, increasing the dielectric constant almost 10 times higher than that of PLA. In addition, Ag/PCH could reinforce the mechanical properties of PLA. Furthermore, we prepared biaxially oriented poly(lactic acid) (BOPLA) films with 4 μm of thickness. The dissipation factor of BOPLA-Ag/PCH was improved, while the dielectric constant was only slightly decreased. However, the BOPLA-Ag/PCH showed better dielectric properties than those of traditional BOPP films. As a result, PLA-Ag/PCH and BOPLA-Ag/PCH hybrid films derived from poly(lactic acid) as biodegradable polymers with superior properties can be applied as dielectric films in capacitors.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Nano-Silver-Coated Porous Clay Heterostructure Fillers for PLA and Biaxially Oriented Poly(lactic acid) Dielectric Films

Khankhuean

Sukthavorn

Nootsuwan

et al. 2023

ACS Appl. Polym. Mater.

View full text Add to dashboard Cite

show abstract

“…Nanocomposites based on biodegradable aliphatic polyesters and layered silicates hold great promise for a wide range of applications, including but not limited to packaging, biomedical uses, and the agricultural sector 6,19,21,22 . Indeed, these bionanocomposites have attracted significant attention as capacitors or dielectric materials; they most commonly find application as electrical energy storage systems in various devices such as inverters, hybrid electrical vehicles, high power microwave, and various peak power applications 23–25 …”

Section: Introductionmentioning

confidence: 99%

“…6,19,21,22 Indeed, these bionanocomposites have attracted significant attention as capacitors or dielectric materials; they most commonly find application as electrical energy storage systems in various devices such as inverters, hybrid electrical vehicles, high power microwave, and various peak power applications. [23][24][25] Most polymers tend to be hydrophobic and do not readily blend with hydrophilic clays. To address this issue, pretreating the clays through organomodification becomes necessary.…”

Section: Introductionmentioning

confidence: 99%

Molecular dynamics of poly(ε‐caprolactone)/beidellite organoclay bionanocomposites obtained by in‐situ polymerization highlighted by dielectric relaxation spectroscopy

Ezzeddine,

Ilsouk,

Arous

et al. 2024

Polymer Engineering & Sci

View full text Add to dashboard Cite

Nanocomposites of poly(ε‐caprolactone) (PCL) reinforced by an organomodified beidellite (BDT) with 3% of cetyltrimethylammonium bromide (CTAB) (labeled PCL/3CTA‐BDT) were prepared by varying the content of filler (1, 2, 3, and 5 wt%). Their molecular dynamics were investigated by broadband dielectric spectroscopy at temperatures ranging from 0 to 40°C and a frequency window from 10−1 to 106 Hz. Three relaxation processes were detected for unfilled PCL: electrode polarization (EP), the Maxwell–Wagner–Sillars (MWS) polarization, and the α‐relaxation. The incorporation of the filler induced the emergence of a fourth process at high frequency of dipolar origin labeled as interfacial polarization (IP). Fitting the data with the Havriliak–Negami model as well as a study of the relaxation time variation with temperature demonstrated the noncooperative nature of the IP process. Activation energy and dielectric strength values demonstrated that the PCL/3CTA‐BDT with 3 wt% of filler showed a higher quality of dispersion and better interfacial features compared to those with other filler contents (2 and 5 wt%). This work highlights the challenges of dielectric green nanocomposites used for capacitors (storage energy) and cable/wire insulation.Highlights The various samples were analyzed using broadband dielectric spectroscopy. Relaxation processes in pure matrix: EP, MWS, and α‐relaxation. Incorporation of the filler induced the emergence of interfacial polarization (IP). Noncooperative behavior of the IP process. 3 wt% loading showed a higher quality of dispersion and interfacial features.

show abstract

Biodegradable nanocomposite derived from PLA/PBAT blends with transition metal cation-doped porous clay heterostructures for flexible capacitor applications

Cited by 2 publications

References 32 publications

Nano-Silver-Coated Porous Clay Heterostructure Fillers for PLA and Biaxially Oriented Poly(lactic acid) Dielectric Films

Nano-Silver-Coated Porous Clay Heterostructure Fillers for PLA and Biaxially Oriented Poly(lactic acid) Dielectric Films

Molecular dynamics of poly(ε‐caprolactone)/beidellite organoclay bionanocomposites obtained by in‐situ polymerization highlighted by dielectric relaxation spectroscopy

Contact Info

Product

Resources

About