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Review of recent advances of polymer based dielectrics for high-energy storage in electronic power devices

Wenjie Sun, Jiale Mao, Shuang Wang, Lei Zhang, Yonghong Cheng

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 1,   Pages 18-34 doi: 10.1007/s11705-020-1939-4

Abstract: Polymer-based dielectric capacitors are widely-used energy storage devices.However, although the functions of dielectrics in applications like high-voltage direct current transmissionThis paper reviews recent advances in this area, and categorizes dielectrics in terms of their foremostRequirements for polymer-based dielectrics in various power electronic equipment are emphasized, including

Keywords： dielectric capacitors     polymer-based dielectrics     energy density     dielectric loss     working temperature     frequency    

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Development of electrorheological chip and conducting polymer-based sensor

Xianzhou ZHANG, Weihua LI, Weijia WEN, Yanzhe WU, Gordon WALLACE,

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 4,   Pages 393-396 doi: 10.1007/s11465-009-0043-8

Abstract: This paper presents the development of an integrated sensor using two types of smart materials: electrorheological (ER) fluids and conducting polymers (CPs). The developed ER chip worked as an actuator, and it was driven by different voltages and control frequencies. When the four electrodes are controlled synchronously, the diaphragm acts as a vibrator whose frequency can be adjusted in accordance with the frequency of the electrical signals. The response signals of the CP sensor were recorded, and its properties were analyzed. Experimental results show that the amplitude decreases monotonically when the frequency increases, owing to the time delay in the pressure buildup in the ER chip. However, the displacement fluctuation of the diaphragm below 20Hz can be detected clearly even if the value is very low. When the vibration frequency is larger than 20Hz, the CP sensor can hardly detect the displacement fluctuation. Thus, the upper limit frequency that the CP sensor can detect is about 20Hz. The practical applications of this microdevice are also discussed.

Keywords： electrorheological (ER) fluids     conducting polymer (CP)     polydimethylsioxane (PDMS)     driving frequency     amplitude    

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Validation of polymer-based nano-iron oxide in further phosphorus removal from bioeffluent: laboratory

Ming HUA, Lili XIAO, Bingcai PAN, Quanxing ZHANG

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 3,   Pages 435-441 doi: 10.1007/s11783-013-0508-1

Abstract: ., a polymer-based hydrated ferric oxide nanocomposite (HFO-201), for the further removal of phosphorous

Keywords： bioeffluent     phosphorus removal     nanocomposite adsorbent     hydrated ferric oxide    

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Modeling and simulation of droplet translocation and fission by electrowetting-on-dielectrics (EWOD)

Nathan HOWELL, Weihua LI

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 4,   Pages 376-388 doi: 10.1007/s11465-010-0104-z

Abstract: This paper discusses methods of microfluidic droplet actuation by means of electrowetting-on-dielectrics

Keywords： electrowetting-on-dielectrics (EWOD)     electrowetting     microfluidics     droplet translocation     droplet fission    

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Engineering Dual Oxygen Simultaneously Modified Boron Nitride for Boosting Adsorptive Desulfurization of Fuel Article

罗静, 魏延臣, 巢艳红, 王超, 李宏平, 熊君, 华明清, 李华明, 朱文帅

Engineering 2022, Volume 14, Issue 7,   Pages 86-93 doi: 10.1016/j.eng.2020.08.030

Abstract: oxygen atom-scale interior substitution and edge hydroxylation in BN structure were constructed via a polymer-basedTherefore, the designing of a polymer-based strategy could be also extended to other heteroatom doping

Keywords： Polymer-based synthetic strategy     Interior substitution BN     Oxygen doping     Adsorptive desulfurization    

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Assessing the effects of different dielectrics on environmentally conscious powder-mixed EDM of difficult-to-machine

Jagdeep SINGH,Rajiv Kumar SHARMA

Frontiers of Mechanical Engineering 2016, Volume 11, Issue 4,   Pages 374-387 doi: 10.1007/s11465-016-0388-8

Abstract:

Electrical discharge machining (EDM) is a well-known nontraditional manufacturing process to machine the difficult-to-machine (DTM) materials which have unique hardness properties. Researchers have successfully performed hybridization to improve this process by incorporating powders into the EDM process known as powder-mixed EDM process. This process drastically improves process efficiency by increasing material removal rate, micro-hardness, as well as reducing the tool wear rate and surface roughness. EDM also has some input parameters, including pulse-on time, dielectric levels and its type, current setting, flushing pressure, and so on, which have a significant effect on EDM performance. However, despite their positive influence, investigating the effects of these parameters on environmental conditions is necessary. Most studies demonstrate the use of kerosene oil as dielectric fluid. Nevertheless, in this work, the authors highlight the findings with respect to three different dielectric fluids, including kerosene oil, EDM oil, and distilled water using one-variable-at-a-time approach for machining as well as environmental aspects. The hazard and operability analysis is employed to identify the inherent safety factors associated with powder-mixed EDM of WC-Co.

Keywords： WC     hazard and operability analysis (HAZOP)     discharging     aerosol concentration     dielectrics     powders    

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Development of an electrorheological chip and conducting polymer based sensor

Xianzhou ZHANG, Weihua LI, Weijia WEN, Yanzhe WU, Gordon WALLACE,

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 4,   Pages 472-472 doi: 10.1007/s11465-009-0077-y

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Numerical modeling of nonlinear deformation of polymer composites based on hyperelastic constitutive

Qingsheng YANG, Fang XU

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 3,   Pages 284-288 doi: 10.1007/s11465-009-0067-0

Abstract: Fiber reinforced polymer (FRP) composites exhibit nonlinear and hyperelastic characteristics under finiteThis paper investigates the macroscopic hyperelastic behavior of fiber reinforced polymer compositesusing a micromechanical model and finite deformation theory based on the hyperelastic constitutive law

Keywords： composites     hyperelastic     finite deformation     homogenization     micromechanics    

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Lignin-based polymer with high phenolic hydroxyl group content prepared by the alkyl chain bridging method

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 8,   Pages 1075-1084 doi: 10.1007/s11705-022-2272-x

Abstract: Based on the excellent electron transporting property of PLS, PLS was applied as a dopant in poly(3,4hydroxyl group of lignin can be easily boosted by the alkyl chain bridging method, and phenolated lignin-based

Keywords： lignosulfonate     phenolic group     PEDOT:PLS     hole extract layer     energy level    

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Organic conjugated polymers and polymer dots as photocatalysts for hydrogen production

Frontiers in Energy 2021, Volume 15, Issue 1,   Pages 667-677 doi: 10.1007/s11708-021-0767-7

Abstract: Among them, organic polymer dots process large breadth of potential synthetic diversity are the representativeIn this mini-review, first, the organic polymer photocatalysts were introduced.Then, recent reports on polymer dots which showed a superior photocatalytic activity and a robust stabilityFinally, challenges and outlook on using organic polymer dots-based photocatalysts from hydrogen production

Keywords： polymer dots (Pdots)     photocatalysis     hydrogen production    

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Construction of interfacial dynamic bonds for high performance lignin/polymer biocomposites

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 10,   Pages 1372-1388 doi: 10.1007/s11705-023-2302-3

Abstract: The development of lignin/polymer biocomposites can promote the high value utilization of lignin andHowever, the weak interfacial interaction between industrial lignin and polymer induces poor compatibilityand serious agglomeration in polymer owing to the strong intermolecular force of lignin.As such, it is extremely difficult to prepare high performance lignin/polymer biocomposites.The lignin-modified polymer composites achieved simultaneously enhanced strength and toughness.

Keywords： lignin     polymer     interfacial dynamic bonds    

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Effect of polymer structures on electro-optical properties of polymer stabilized liquid crystal films

WANG Shoulian, HE Jie, ZENG Yu, YAN Bin, WANG Yinghan

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 3,   Pages 265-268 doi: 10.1007/s11705-008-0054-8

Abstract: The polymer stabilized liquid crystal (PSLC) film is a relatively novel electro-optical material, whichthose from the single functional monomer exhibited a deformed electro-optical curve due to the unsteady polymer
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Deformation analysis of shape memory polymer for morphing wing skin under airflow

Weilong YIN, Jingcang LIU, Jinsong LENG,

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 4,   Pages 447-449 doi: 10.1007/s11465-009-0062-5

Abstract: The chief aim of the present study is to investigate the out-of-plane deformation of the shape memory polymer

Keywords： aircraft     morphing     skin     shape memory polymer (SMP)     deformation     pre-strain    

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Fracture model for the prediction of the electrical percolation threshold in CNTs/Polymer composites

Yang SHEN, Pengfei HE, Xiaoying ZHUANG

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 1,   Pages 125-136 doi: 10.1007/s11709-017-0396-8

Abstract: stochastic model to predict the percolation threshold and the effective electric conductivity of CNTs/Polymerinterpenetration can be avoided in the identification of the conductive paths between the CNTs inside the polymer

Keywords： electrical percolation     CNTs/Polymer composites     fracture model     electric conductivity     tunnelling effects    

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Preparation and performance of soft actuator based on IPMC with silver electrodes

Qi CHEN, Ke XIONG, Kan BIAN, Ning JIN, Bangfeng WANG,

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 4,   Pages 436-440 doi: 10.1007/s11465-009-0054-5

Abstract: The surface electrodes of traditional ionic polymer-metal composites (IPMC) are made of platinum.A new approach of electroless silver plating based on chemical deposition method is adopted, gettingThe experiments show that the IPMC technology based on the silver electrode is feasible.

Keywords： ionic polymer-metal composites (IPMC)     Nafion     intelligent material     soft actuators     electroless silver plating    

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Title Author Date Type Operation

Review of recent advances of polymer based dielectrics for high-energy storage in electronic power devices

Wenjie Sun, Jiale Mao, Shuang Wang, Lei Zhang, Yonghong Cheng

Journal Article

Development of electrorheological chip and conducting polymer-based sensor

Xianzhou ZHANG, Weihua LI, Weijia WEN, Yanzhe WU, Gordon WALLACE,

Journal Article

Validation of polymer-based nano-iron oxide in further phosphorus removal from bioeffluent: laboratory

Ming HUA, Lili XIAO, Bingcai PAN, Quanxing ZHANG

Journal Article

Modeling and simulation of droplet translocation and fission by electrowetting-on-dielectrics (EWOD)

Nathan HOWELL, Weihua LI

Journal Article

Engineering Dual Oxygen Simultaneously Modified Boron Nitride for Boosting Adsorptive Desulfurization of Fuel

罗静, 魏延臣, 巢艳红, 王超, 李宏平, 熊君, 华明清, 李华明, 朱文帅

Journal Article

Assessing the effects of different dielectrics on environmentally conscious powder-mixed EDM of difficult-to-machine

Jagdeep SINGH,Rajiv Kumar SHARMA

Journal Article

Development of an electrorheological chip and conducting polymer based sensor

Xianzhou ZHANG, Weihua LI, Weijia WEN, Yanzhe WU, Gordon WALLACE,

Journal Article

Numerical modeling of nonlinear deformation of polymer composites based on hyperelastic constitutive

Qingsheng YANG, Fang XU

Journal Article

Lignin-based polymer with high phenolic hydroxyl group content prepared by the alkyl chain bridging method

Journal Article

Organic conjugated polymers and polymer dots as photocatalysts for hydrogen production

Journal Article

Construction of interfacial dynamic bonds for high performance lignin/polymer biocomposites

Journal Article

Effect of polymer structures on electro-optical properties of polymer stabilized liquid crystal films

WANG Shoulian, HE Jie, ZENG Yu, YAN Bin, WANG Yinghan

Journal Article

Deformation analysis of shape memory polymer for morphing wing skin under airflow

Weilong YIN, Jingcang LIU, Jinsong LENG,

Journal Article

Fracture model for the prediction of the electrical percolation threshold in CNTs/Polymer composites

Yang SHEN, Pengfei HE, Xiaoying ZHUANG

Journal Article

Preparation and performance of soft actuator based on IPMC with silver electrodes

Qi CHEN, Ke XIONG, Kan BIAN, Ning JIN, Bangfeng WANG,

Journal Article