The influence of TiO2 nanoparticle incorporation on surface potential decay of corona-resistant polyimide nanocomposite films

Zha, Jun‐Wei; George, C. F.; Dang, Zhi‐Min; Yin, Yi

doi:10.1016/j.elstat.2011.04.001

Cited by 45 publications

(24 citation statements)

References 29 publications

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“…So far, surface modified nano-TiO 2 particles have been widely used in the field of polymer-based nanocomposites [14][15][16][17][18][19][20]. The most research activities have been focused on the surface modification of nano-TiO 2 using silane coupling agents such as 3-aminopropyltriethoxysilane (APTS) [21][22][23][24][25]. Nevertheless, organic isocyanates seem to be good alternatives for silane coupling agents.…”

Section: Introductionmentioning

confidence: 99%

Transparent and flexible films of new segmented polyurethane nanocomposites incorporated by NH2-functionalized TiO2 nanoparticles

Behniafar

Alimohammadi

Malekshahinezhad

2015

Progress in Organic Coatings

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Section: Introductionmentioning

confidence: 99%

Transparent and flexible films of new segmented polyurethane nanocomposites incorporated by NH2-functionalized TiO2 nanoparticles

Behniafar

Alimohammadi

Malekshahinezhad

2015

Progress in Organic Coatings

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“…This is because the results of DC conductivity can directly embody the space charge accumulation and movement in nanodielectrics [4]. It has also been reported that after corona charged, the surface potential decay of nanocomposites when in higher loading ratios is faster than the pure polymer [5].…”

Section: Introductionmentioning

confidence: 89%

DC current in nanosilica-based polyethylene nanocomposites

Wang

George

et al. 2015

2015 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP)

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-In the present paper, DC current of polyethylene nanocomposites containing different nanosilica loading ratios, either the untreated or the surface treated using the trimethoxy(propyl)silane coupling agent has been investigated. TGA was used to identify the true loading concentration in the samples and the nanofillers dispersion was studied using SEM. A range of electric field from 10 kV/mm to 50 kV/mm were applied It has been found that two dynamic processes are involved in the current observed over a period of 3 hours. The initial process was dominated by trap filling where a decreasing current versus time was observed. The second process was related to the transient space charge limited current in the unfilled sample but taken over by the effect of nanofillers that shows a continuous current increase versus time rather than peaking. The exact mechanism responsible for the increasing current is not known yet. The influence of surface treatment of the nanofillers on the current is significant, resulting in a lower current comparing with the untreated samples. A current dip has been observed for samples with lower loading concentration, supporting the deep trap concept.

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“…In recent years, various nonconducting nanoparticles with different dimensions have been introduced into polymer matrix. These nanoparticles mainly include high‐ε r ceramic nanoparticles such as BaTiO 3 , TiO 2 , ZrO 2 , (Ba x Sr 1− x )TiO 3 , CaCu 3 Ti 4 O 12 , Pb(Zr x Ti 1− x )O 3 , naturally nanosized silicate minerals (attapulgite, montmorillonite, clay), and other materials with excellent electrical and thermal properties, such as boron nitride …”

Section: High Energy Density Ceramics/polymer Nanocompositesmentioning

confidence: 99%

Superior Energy Storage Performances of Polymer Nanocomposites via Modification of Filler/Polymer Interfaces

Zhang

Dong

et al. 2018

Adv Materials Inter

201

112

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systems, they have numerous applications in various fields as pulsed power supply technology, [8,9] energy harvesting, [10][11][12] inverters, [13][14][15] and passive elements, [16][17][18] toward both defense and civil industries. Excellent energy storage capabilities of dielectric materials including high discharged energy density and high energy efficiency have long been eagerly pursued to meet the challenges and needs of the rapid development of modern industry, i.e., the low energy density of current dielectric materials results in overburdened capacitor volume and weight in electrical power systems. The energy storage performances of dielectric materials are usually multiply determined by three major electrical and dielectric parameters, which are categorized as:1) The breakdown strength E b ;2) The relative permittivity (also called dielectric constant) ε r or electric displacement D (the electric displacement is related to the polarization P by D = P + ε 0 E, here ε 0 = 8.85 × 10 −12 F m −1 is the vacuum permittivity); 3) The dielectric loss tanδ.In general, as illustrated in Figure 1, the discharged energy density of dielectric materials can be determined aswhere E is the applied electric field, and the energy efficiency is calculated by Dielectric polymer nanocomposites by integration of high-E b polymer matrix and high-D(ε r ) ceramic fillers have shown great potential for dielectric and energy storage applications in modern electronic and electrical systems. Interface between ceramic fillers and polymer matrix is considered as a predominant factor to determine the dielectric performances of the nanocomposites. This review analyzes the influence of the interface on dielectric responses and breakdown strength in the nanocomposites, and discusses the viability of current interface engineering strategies in improving their energy storage capabilities. Two scopes of current interface modification approaches are focused from both structural and functional considerations in the dielectric ceramics/polymer nanocomposites: first, the organic/inorganic interface compatibility can be modified to generate homogeneous dispersion of ceramic nanoparticles in polymer matrix, which is the premise of fully realizing the synergistic combination of advantages of polymer and ceramic fillers; second, regulated local electrical and dielectric behaviors in interface region enable the enhancement of dielectric properties (both high dielectric constant and high breakdown strength) in resultant nanocomposites. In the last part, some present challenges and future perspectives are proposed to utilize the interface strategy for developing high energy density ceramics/ polymer nanocomposites for dielectric and energy storage applications.

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The influence of TiO2 nanoparticle incorporation on surface potential decay of corona-resistant polyimide nanocomposite films

Cited by 45 publications

References 29 publications

Transparent and flexible films of new segmented polyurethane nanocomposites incorporated by NH2-functionalized TiO2 nanoparticles

Transparent and flexible films of new segmented polyurethane nanocomposites incorporated by NH2-functionalized TiO2 nanoparticles

DC current in nanosilica-based polyethylene nanocomposites

Superior Energy Storage Performances of Polymer Nanocomposites via Modification of Filler/Polymer Interfaces

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