Improvement of electrical and material properties of epoxy resin/ aluminum nitride nanocomposites for packaging materials

Dai, Chao; Chen, Xiangrong; Jiang, Tie; Paramane, Ashish; Tanaka, Yasuhiro

doi:10.1016/j.polymertesting.2020.106502

Cited by 38 publications

(39 citation statements)

References 32 publications

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“…An increase of cross-linking density in the epoxy network, confirmed by an increase in the glass transition temperature, has been observed for nanocomposites containing aluminum hypophosphite nanoparticles (increase in T g greater than 8%) [ 78 ]. Increases in T g have also been reported for epoxy-based nanocomposites containing epoxy-grafted silica (up to 5–6% at a filler content of 2.5 wt.%) [ 66 ] and nano-aluminum nitride (around 13% by adding 1 wt.% of nano-AlN) [ 89 ]. On the other hand, decreases in T g have been found upon the incorporation of nano-Al 2 O 3 particles (greater than 10 °C) at a 0.1 wt.% loading [ 54 ]; more limited reductions in T g (up to 3 °C) have been measured upon addition of boehmite nanoparticles at low concentration levels (i.e., 1 wt.%) [ 85 ].…”

Section: Curing/cross-linking Processmentioning

confidence: 91%

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Recent Advances and Trends of Nanofilled/Nanostructured Epoxies

Frigione

Lettieri

2020

Materials

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This paper aims at reviewing the works published in the last five years (2016–2020) on polymer nanocomposites based on epoxy resins. The different nanofillers successfully added to epoxies to enhance some of their characteristics, in relation to the nature and the feature of each nanofiller, are illustrated. The organic–inorganic hybrid nanostructured epoxies are also introduced and their strong potential in many applications has been highlighted. The different methods and routes employed for the production of nanofilled/nanostructured epoxies are described. A discussion of the main properties and final performance, which comprise durability, of epoxy nanocomposites, depending on chemical nature, shape, and size of nanoparticles and on their distribution, is presented. It is also shown why an efficient uniform dispersion of the nanofillers in the epoxy matrix, along with strong interfacial interactions with the polymeric network, will guarantee the success of the application for which the nanocomposite is proposed. The mechanisms yielding to the improved properties in comparison to the neat polymer are illustrated. The most important applications in which these new materials can better exploit their uniqueness are finally presented, also evidencing the aspects that limit a wider diffusion.

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Section: Curing/cross-linking Processmentioning

confidence: 91%

“…Aluminum nitride (AlN) spherical nanoparticles (average diameter of 50 nm) were added to epoxy resin in the view to enhance its electrical properties; these nanocomposites display, additionally, a greater thermal resistance [ 89 ].…”

Section: Nanofillers For Epoxy Resinsmentioning

confidence: 99%

Recent Advances and Trends of Nanofilled/Nanostructured Epoxies

Frigione

Lettieri

2020

Materials

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“…The measurement error of the thermal conductivity for these samples is 0.002, 0.007, 0.006, 0.001, and 0.0004 W/mK, respectively. Compared to the thermal conductivity of the pure EP (0.22 W/mK) in the previous work, 30 the enhancement rate of the micro and micro‐nano hybrid composites is 205%, 247.7%, 235%, 319.1%, and 329.5%, respectively. The results show that the thermal conductivity of the epoxy resin is evidently increased with the addition of the micro and nano‐AlN fillers.…”

Section: Resultsmentioning

confidence: 61%

“…The E‐51 bisphenol is adopted as the EP matrix in the present study 30 . The curing agent is methyl hexahydrophthalic anhydride (MHHPA) and the accelerator is Tris (dimethylamino methyl) phenol (DMP‐30).…”

Section: Methodsmentioning

confidence: 99%

Charge dynamics and thermal properties of epoxy based micro and nano hybrid composites at high temperatures

Chen

Dai

Hong

et al. 2021

J of Applied Polymer Sci

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This paper presents the effects of the filler type and testing temperature on the charge dynamics and thermal properties of the epoxy resin. The micro‐nano hybrid composites with different content of the micro and nano aluminum nitride (AlN) fillers are fabricated. The morphology of micro‐nano hybrid composites is characterized. Electrical testing and thermal analysis methods are adopted to analyze its electrical and thermal performance. The results show that the space charge accumulation is suppressed and the charge decay process is facilitated in the hybrid composites. The electrical performances of the hybrid composites are enhanced by the nano‐fillers. The apparent mobility and activation energy are decreased with nano‐AlN fillers in the composites at the high temperature. The glass transition temperature and thermal stability of the materials is improved with the nano‐AlN. A hypothetical mechanism is proposed to explain the charge carrier injection and transport of the composites at different temperatures.

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“… 15 − 18 It has been reported that the mechanism by which low content nanofillers (such as TiO 2 , 19 , 20 MgO, 21 , 22 and Al 2 O 3 23 , 24 ) can improve the breakdown strength of polymer is mainly attributed to two ways: (1) the tortuous path of electron breakdown caused by nanofillers. 25 , 26 (2) Nanofillers capture electrons by introducing deep traps into the polymer ( Figure 1 b). It has been revealed that nano-SiO 2 can effectively improve the electrical insulation properties of polymers.…”

Section: Introductionmentioning

confidence: 99%

Voltage-Stabilizer-Grafted SiO₂ Increases the Breakdown Voltage of the Cycloaliphatic Epoxy Resin

et al. 2021

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Cycloaliphatic epoxy (CE) resin plays a vital role in insulation equipment due to its excellent insulation and processability. However, the insufficient ability of CE to confine electrons under high voltage often leads to an electric breakdown, which limits its wide applications in high-voltage insulation equipment. In this work, the interface effect of inorganic nano-SiO 2 introduces deep traps to capture electrons, which is synergistic with the inherent ability of the voltage stabilizer m -aminobenzoic acid ( m -ABA) to capture high-energy electrons through collision. Therefore, the insulation failure rate is reduced owing to doping of the functionalized nanoparticles of the m -ABA-grafted nano-SiO 2 ( m -ABA-SiO 2 ) into the CE. It is worth noting that the breakdown field strength of this m -ABA-SiO 2 /CE reaches 53 kV/mm, which is 40.8% higher than that of pure CE. In addition, the tensile strength and volume resistivity of m -ABA-SiO 2 /CE are increased by 29.1 and 140%, respectively. Meanwhile, the glass transition temperature was increased by about 25 °C and reached 213 °C. This work proves that the comprehensive performance of CE-based nanocomposites is effectively improved by m -ABA-SiO 2 nanoparticles, showing great application potential in high-voltage insulated power equipment.

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Improvement of electrical and material properties of epoxy resin/ aluminum nitride nanocomposites for packaging materials

Cited by 38 publications

References 32 publications

Recent Advances and Trends of Nanofilled/Nanostructured Epoxies

Recent Advances and Trends of Nanofilled/Nanostructured Epoxies

Charge dynamics and thermal properties of epoxy based micro and nano hybrid composites at high temperatures

Voltage-Stabilizer-Grafted SiO₂ Increases the Breakdown Voltage of the Cycloaliphatic Epoxy Resin

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Improvement of electrical and material properties of epoxy resin/ aluminum nitride nanocomposites for packaging materials

Cited by 38 publications

References 32 publications

Recent Advances and Trends of Nanofilled/Nanostructured Epoxies

Recent Advances and Trends of Nanofilled/Nanostructured Epoxies

Charge dynamics and thermal properties of epoxy based micro and nano hybrid composites at high temperatures

Voltage-Stabilizer-Grafted SiO2 Increases the Breakdown Voltage of the Cycloaliphatic Epoxy Resin

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Product

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Voltage-Stabilizer-Grafted SiO₂ Increases the Breakdown Voltage of the Cycloaliphatic Epoxy Resin