Hydrosoluble Graphene/Polyvinyl Alcohol Membranous Composites with Negative Permittivity Behavior

Sun, Kai; Wang, Zongxiang; Xin, Jiahao; Wang, Zhongyang; Xie, Peitao; Fan, Guohua; Murugadoss, Vignesh; Fan, Runhua; Fan, Jincheng; Guo, Zhanhu

doi:10.1002/mame.201900709

Cited by 62 publications

(35 citation statements)

References 65 publications

(78 reference statements)

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“…Zhu et al [136] introduced cellulose nanocrystals (CNCs) and graphene oxide (GO) [137] into poly(viny akohol) (PVA), poly(acrylic acid) (PAA) and poly(acrylamide) (PAM) triple network ionogel. The combination of the dynamic hydrogen bonds, ionic bonds and the sacrificial network of covalently bonded graphene CNCs gives ionogel remarkable mechanical strength with a maximum tensile strength of 15.9 MPa and…”

Section: P E R S O N a L A C C O U N T T H E C H E M I C A L R E C O R Dmentioning

confidence: 99%

Overview of Ionogels in Flexible Electronics

Zhang

Jiang

Dong

et al. 2020

The Chemical Record

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Ionogels have aroused wide interests in the field of flexible electronics. The combination of solid‐state networks and ionic liquids opens up thousands of possibilities for ionogels. The unique structures of ionogels endow them excellent mechanical properties, conductivity and thermal stability to approach the challenge of flexible electronic. A large number of new ionogels have been developed by different methods including the exchange of solution, polymeric ionic liquid and in‐situ reactions in ionic liquids (gelation of low molecular weight gelators, self‐assembly of block polymers, formation of double‐network structure, ionogel nanocomposites and direct polymerization of polymerizable monomers). The aim of this review is to discuss different preparation methods of ionogels and the comparison of their advantages.

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Section: P E R S O N a L A C C O U N T T H E C H E M I C A L R E C O R Dmentioning

confidence: 99%

Overview of Ionogels in Flexible Electronics

Zhang

Jiang

Dong

et al. 2020

The Chemical Record

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“…Sun et al [30,31] used graphene as a conductive filler to study the negative permittivity behavior of hydrosoluble Polyvinyl alcohol (PVA) and Polydimethylsiloxane (PDMS). As graphene sheet is an excellent conductive material, modified graphene sheets were mixed with PVA by sonication to form a uniformly dispersed solution.…”

Section: Electromagnetic Interference Shielding Propertiesmentioning

confidence: 99%

Tailoring specific properties of polymer-based composites by using graphene and its associated compounds

Hung

Lau

Guo³

et al. 2020

International Journal of Smart and Nano Materials

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Graphene and its associated compounds have been identified as extraordinary structural nano-fillers that can tailor the properties of new polymer-based composites with specific functionalities. Graphene possesses perfect 2D atomic architecture and has a large surface area that enhances the bonding, with tailored functional groups on its surface with polymer chains to form high strength composites. Recently, a lot of research has focused on developing composites with high specific strength, high electrical and thermal conductivities, high impact resistance, excellent energy storage capability and ability to maintain their strength at low-temperature environments by using graphene, graphene oxide (GO), reduced graphene oxide (rGO) or carbon nanotube/graphene. Ultimate goals are to design composites that can meet specific requirements for different engineering applications. In this paper, the discussion on all aspects in relation to the use of graphene and its associated compounds for advanced composites will be given in detail. The potentiality of using these materials for hightech applications will be explored. Up to date, it has been proved that the use of graphene-based nanofillers does improve the mechanical, interfacial bonding, electrical, thermal and electromagnetic interference shield properties of polymer-based materials. Appropriately adding a small amount of these nanofillers do make a big difference to the properties of host materials.

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“…This method can also be used in preparation of composites with negative electromagnetic parameters, which has potential application in electronic device. 58,59 The screw diameter (D) of the extruder was 25 mm and the length-diameter ratio (L/D) was 40. Pure PLA was also processed as a control sample following the same process for the normalized evaluation.…”

Section: Preparation Of Pla/fe 3 O 4 -G-plla Composite Masterbatches mentioning

confidence: 99%

Preparation and Characterization of magnetic PLA/Fe₃O₄-g-PLLA composite melt blown nonwoven fabric for air filtration

Sun

Peng

Wang

et al. 2020

Journal of Engineered Fibers and Fabrics

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A kind of magnetic poly (lactic acid) (PLA) melt blown nonwoven fabric (MB) was fabricated by the introduction of ferroferric oxide (Fe3O4) nanoparticles to improve its air filtration performances. In view of the poor compatibility of two components, the poly (L-lactic acid) (PLLA) molecular chains was firstly grafted onto the Fe3O4 nanoparticles surface via the ring opening polymerization (ROP). Then, PLA/Fe3O4-g-PLLA composite masterbatches with different mass ratios were prepared by melt-blending method and processed into the corresponding composite MB. The structures and performances of PLA/Fe3O4-g-PLLA composite masterbatches and their MB were investigated. The results showed that the addition of Fe3O4-g-PLLA nanohybrids hardly influenced the glass transition, cold crystallization and melting behaviors of the composite masterbatches. Though the melt fluidity of the composite masterbatches reduced with the Fe3O4-g-PLLA content increasing, the composite masterbatches still could present the appropriate processability in the range of 210°C to 230°C. Fe3O4-g-PLLA could be uniformly dispersed in PLA matrix and had a good interfacial compatibility with the matrix. Compared with pure PLA MB, the fiber surface of the composite MB became slightly rough, the pore size and distribution of the fiber web increased. The addition of Fe3O4-g-PLLA endowed PLA MB with magnetism. With the increasing of Fe3O4-g-PLLA content, the air permeability of the composite MB was improved and their filtration resistance obviously reduced. When the content of Fe3O4-g-PLLA was 0.5 wt%, the filtration efficiency of the composite MB reached the maximum. Moreover, the composite MB have higher longitudinal tensile strength and elongation at break than those of pure PLA MB.

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Hydrosoluble Graphene/Polyvinyl Alcohol Membranous Composites with Negative Permittivity Behavior

Cited by 62 publications

References 65 publications

Overview of Ionogels in Flexible Electronics

Overview of Ionogels in Flexible Electronics

Tailoring specific properties of polymer-based composites by using graphene and its associated compounds

Preparation and Characterization of magnetic PLA/Fe₃O₄-g-PLLA composite melt blown nonwoven fabric for air filtration

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Hydrosoluble Graphene/Polyvinyl Alcohol Membranous Composites with Negative Permittivity Behavior

Cited by 62 publications

References 65 publications

Overview of Ionogels in Flexible Electronics

Overview of Ionogels in Flexible Electronics

Tailoring specific properties of polymer-based composites by using graphene and its associated compounds

Preparation and Characterization of magnetic PLA/Fe3O4-g-PLLA composite melt blown nonwoven fabric for air filtration

Contact Info

Product

Resources

About

Preparation and Characterization of magnetic PLA/Fe₃O₄-g-PLLA composite melt blown nonwoven fabric for air filtration