High voltage insulation materials based on functional polymer nanocomposites – synthesis of nanocomposite master batches

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Project abstract

In this project a new manufacturing route for functional electrical insulation material using polymer nanocomposites. The desired dielectrical properties (conductivity, dielectric constant, loss etc) are tailored by polymer grafting from nanoparticles, allowing well-defined particle dispersion in the polymer matrix. Structural characterization of nanoparticle interfaces and the manufactured materials has been done in collaboration with IREC in Barcelona, and at the University of Manchester. The desired molecular structures are based on input from material simulations performed within a related project (Fritjof Nilsson). Long-term properties and reliability of the nanocomposites are addressed in collaboration with the projects of Wangshu Li and Richard Andersson.

Summary of work

2012-2014 Successful new route of ATRP polymerization of acrylates and methacrylates onto Al2O3 and ZnO nanoparticles & successful dispersion in an insulating polymer matrix.

2013 Successful cleavage of polymer grafts.

2013-2016 Identification of the critical parameters for controlling polymer graft density and polymer chain length and particle morphology.

2014-2016 Morphological characterization of nanocomposites completed and compared with material simulations and electrical data.

2014-2016 Dielectric spectroscopy analysis and resistivity measurements of silicone rubber nanocomposites filled with modified and unmodified ZnO nanoparticles.

2014-2015 Successful covalent and ionic linkage of acrylates and methacrylates to graphene oxide followed by dispersion in silicone rubbers and EBA.

2015 Silanization of silica nanoparticles and development of superhydrophobic nanostructured surface morphology with deicing properties applicable for electrical insulation.

2016 Pervaporation studies of grafted GO as separation membrane. Tuning by the flake-to-flake distance.

2016 Shape-memory materials of matrix-free GO composites detected.

2016 Characterization of field-grading dielectrical properties of rGO composites.

Event log

2012. Best-poster prize at SweGRIDS annual conference, Stockholm, December, for "Functional Polymer Nanocomposites for High-Voltage Insulation Application".

2014. Three-month research visit to University of Manchester, England, September-December, to work with graphene / graphene-oxide nanocomposites.

2016. Research visit to Duisburg-Essen Universität, Essen, Germany, for 1.5 months during March/April, funded by KIC InnoEnergy. The development of separation membranes of modified GO and testing of the water/ethanol separation by a pervaporation set-up.

2016. Attended and organized Polymer Network groups, Stockholm, July

2016. Attended European Graphene Forum, Paris, June.

2016. Attended Warwick Polymer conference, UK, July

2016. Best-poster prize (KTH) at SweGRIDS annual conference, Stockholm, October.

2016. Attended Energy Dialogue 2016, Stockolm, November.

2016. Patent application ongoing on Low-friction metals and self-lubricating sliding contacts, involving ABB, UU, KTH

Project reference-group

Ulf Gedde,  KTH
Mikael Unge,  ABB AB
Mikael Hedenqvist,  KTH
Claire Pitois,  ABB AB
Richard Olsson,  KTH

Publications by this researcher

See alternatively the researcher's full DiVA list of publications, with options for sorting.
Publications in journals and conferences usually will not show until a while after they are published.

Characterization of Reduced and Surface-Modified Graphene Oxide in Poly(Ethylene-co-Butyl Acrylate) Composites for Electrical Applications
Carmen Sanchez,   Martin Wåhlander,   Mattias E. Karlsson,   Diana C. Marin Quintero,   Henrik Hillborg,   Eva Malmström,   Fritjof Nilsson.
2019,   Polymers, vol. 11(4)

Polymer-grafted nanoparticles in nanocomposites for tailoring dielectric properties
Eva Malmström,   Henrik Hillborg,   Anna Carlmark,   Carmen Sanchez,   Martin Wåhlander.
2017,   254th National Meeting and Exposition of the American-Chemical-Society (ACS) on Chemistry's Impact on the Global Economy, AUG 20-24, 2017, Washington, DC, vol. 254

Controlled Polymer Grafting from Nanoparticles for the Design of Dielectric Nanocomposites
Martin Wåhlander.
2017,   Thesis (PhD), KTH Royal Institute of Technology, TRITA-CHE-Report 2017:16

Tailoring Dielectric Properties using Designed Polymer-Grafted ZnO Nanoparticles in Silicone Rubber
Martin Wåhlander,   Fritjof Nilsson,   Richard L. Andersson,   Carmen Cobo Sanchez,   Nathaniel Taylor,   Anna Carlmark,   Henrik Hillborg,   Eva Malmström.
2017,   Journal of Materials Chemistry A, vol. 5

Reduced and Surface-Modified Graphene Oxide with Nonlinear Resistivity
Martin Wåhlander,   Fritjof Nilsson,   Richard L. Andersson,   Anna Carlmark,   Henrik Hillborg,   Eva Malmström.
2017,   Macromolecular rapid communications, vol. 38(16)

Comparison of Oil-impregnated Papers with SiO2 and ZnO Nanoparticles or High Lignin Content, for the Effect of Superimposed Impulse Voltage on AC Surface PD
Roya Nikjoo,   Nathaniel Taylor,   Hans Edin,   Rebecca Hollertz,   Martin Wåhlander,   Lars Wågberg,   Eva Malmström.
2017,   IEEE transactions on dielectrics and electrical insulation, vol. 24(3)

One-pot waterborne superhydrophobic pigment coatings at high solids with improved scratch and water resistance
Agne Swerin,   Mikael Sundin,   Martin Wåhlander.
2016,   Colloids and Surfaces A: Physicochemical and Engineering Aspects, vol. 495

Hydrophobic matrix-free graphene-oxide composites with isotropic and nematic states
Martin Wåhlander,   Fritjof Nilsson,   Anna Carlmark,   Ulf W Gedde,   Steve Edmondson,   Eva Malmström.
2016,   Nanoscale, vol. 8

Correction: Hydrophobic matrix-free graphene-oxide composites with isotropic and nematic states
Martin Wåhlander,   Fritjof Nilsson,   Anna Carlmark,   Ulf W Gedde,   Steve Edmondson,   Eva Malmström.
2016,   Nanoscale, vol. 8

Superhydrophobicity : Cavity growth and wetting transition
Martin Wåhlander,   P. M. Hansson-Mille,   Agne Swerin.
2015,   Journal of Colloid and Interface Science, vol. 448

Dielectric and Physico-chemical Properties of Epoxy-Mica Insulation During Thermoelectric Aging
L. C. Castro,   J. L. Oslinger,   Nathaniel Taylor,   Martin Wåhlander.
2015,   IEEE transactions on dielectrics and electrical insulation, vol. 22(6)

Novel Nanocomposites of Poly(lauryl methacrylate)-Grafted Al2O3 Nanoparticles in LDPE
Carmen Cobo Sanchez,   Martin Wåhlander,   Nathaniel Taylor,   Linda Fogelström,   Eva Malmström.
2015,   ACS Applied Materials and Interfaces, vol. 7(46)

Formulation of superhydrophobic pigment coatings
Agne Swerin,   Mikael Sundin,   Martin Wåhlander.
2015,   Paper Conference and Trade Show, PaperCon 2015, Atlanta, United States, 19 April 2015 through 22 April 2015

Grafted metal oxide nanoparticles as fillers in soft nanocomposites for electrical applications
Martin Wåhlander,   Eva Malmström,   Henrik Hillborg,   Anna Carlmark.
2014,   248th National Meeting of the American-Chemical-Society (ACS), AUG 10-14, 2014, San Francisco, CA, vol. 248

Polymer-grafted Al2O3-nanoparticles for controlled dispersion in poly(ethylene-co-butyl acrylate) nanocomposites
Martin Wåhlander,   Fritjof Nilsson,   Emma Larsson,   Wen-Chung Tsai,   Henrik Hillborg,   Anna Carlmark,   Ulf W. Gedde,   Eva Malmström.
2014,   Polymer, vol. 55(9)

ATRP for interfacial tailoring of Al(2)O(3) nanoparticles to be used in insulating materials
Eva E. Malmström,   Anna Carlmark,   Martin Wåhlander,   Susanne Hansson,   Wen-Chung Tsai,   Emma Larsson,   Ulf W. Gedde,   Henrik Hillborg.
2011,   Abstracts of Papers of the American Chemical Society, vol. 242

Probing molecular, nanoscale and adhesive forces related to fiber-fiber bonding and optimized surface interactions
Agne Swerin,   Birgitt Brandner,   Vivica Wallqvist,   Martin Wåhlander.
2009,   International Conference on Nanotechnology for the Forest Products Industry 2009, Edmonton, AB, Canada, 23 June 2009 through 26 June 2009

Publication list last updated from DiVA on 2024-01-10 15:22.

Page started: 2011-12-01
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