20002022
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Research Output 2000 2019

2019

Effect of Silica Modification on Charge Trapping Behavior of PP blend/Silica Nanocomposites

Mahtabani, A., He, X., Rytöluoto, I., Lahti, K., Paajanen, M., Saarimäki, E., Anyszka, R., Dierkes, W. & Blume, A., 2019, 2nd International Conference on Electrical Materials and Power Equipment, ICEMPE 2019. IEEE Institute of Electrical and Electronic Engineers , p. 241-245 5 p. 8727245

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

polypropylene
nanocomposites
trapping
silicon dioxide
silanes

Investigation of nanocomposite polypropylene for DC capacitors: A feasibility study

Montanari, G. C., Seri, P., Karttunen, M., Paajanen, M., Lahti, K. & Rytöluoto, I., 2019, In : The transactions of the Institute of Electrical Engineers of Japan A. 139, 2, p. 105-112 8 p.

Research output: Contribution to journalArticleScientificpeer-review

Electric space charge
Polypropylenes
Nanocomposites
Capacitors
Electric breakdown

Silica-Polypropylene Nanocomposites for Film Capacitors: Structure–Property Studies and the Role of Biaxial Stretching Conditions

Rytöluoto, I., Niittymäki, M., Lahti, K., Saarimäki, E., Flyktman, T., Paajanen, M. & Karttunen, M., 8 Aug 2019, Proceedings of the 26th Nordic Insulation Symposium, NORD-IS 19. p. 123-128 (Proceedings of the Nordic Insulation Symposium, Vol. 26).

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Open Access
polypropylene
capacitors
nanocomposites
silicon dioxide
cavitation flow

Solution Modified Fumed Silica and Its Effect on Charge Trapping Behavior of PP/POE/Silica Nanodielectrics

Mahtabani, A., Rytöluoto, I., He, X., Saarimäki, E., Lahti, K., Paajanen, M., Anyszka, R., Dierkes, W. & Blume, A., 8 Aug 2019, Proceedings of the 26th Nordic Insulation Symposium, NORD-IS 19. p. 129-133 (Proceedings of the Nordic Insulation Symposium, Vol. 26).

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Open Access
elastomers
polypropylene
trapping
silicon dioxide
nanocomposites

Surface Modification of Fumed Silica by Dry Silanization for PP/POE-based Dielectric Nanocomposites

He, X., Rytöluoto, I., Mahtabani, A., Anyszka, R., Saarimäki, E., Lahti, K., Paajanen, M., Dierkes, W. & Blume, A., 8 Aug 2019, Proceedings of the 26th Nordic Insulation Symposium, NORD-IS 19. p. 32-36 (Proceedings of the Nordic Insulation Symposium, Vol. 26).

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Open Access
Silicon Dioxide
Surface treatment
Nanocomposites
Charge trapping
Depolarization

Surface Modification of Fumed Silica by Dry Silanization for PP-based Dielectric Nanocomposites

He, X., Mahtabani, A., Rytöluoto, I., Saarimäki, E., Lahti, K., Paajanen, M., Anyszka, R., Dierkes, W. & Blume, A., 2019, 2nd International Conference on Electrical Materials and Power Equipment, ICEMPE 2019. IEEE Institute of Electrical and Electronic Engineers , p. 254-259 6 p. 8727244

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

polypropylene
nanocomposites
traps
silicon dioxide
silanes

Surface Modification of Fumed Silica by Plasma Polymerization of Acetylene for PP/POE Blends Dielectric Nanocomposites

He, X., Rytöluoto, I., Anyszka, R., Mahtabani, A., Saarimäki, E., Lahti, K., Paajanen, M., Dierkes, W. & Blume, A., 28 Nov 2019, In : Polymers. 11, 12, 21 p., 1957.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
Plasma polymerization
Acetylene
Polymer blends
Silicon Dioxide
Surface treatment
2018
1 Citation (Scopus)

Compounding, Structure and Dielectric Properties of Silica-BOPP Nanocomposite Films

Rytoluoto, I., Ritamaki, M., Lahti, K., Paajanen, M., Karttunen, M., Montanari, G. C., Seri, P. & Naderiallaf, H., 19 Sep 2018, 2018 IEEE 2nd International Conference on Dielectrics: ICD 2018. IEEE Institute of Electrical and Electronic Engineers , p. 183DUMMY 8468517

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Nanocomposite films
Silicon Dioxide
Dielectric properties
Silica
Electric space charge
5 Citations (Scopus)

Performance of nanoparticles in the electrical behavior of DC capacitor films

Montanari, G. C., Seri, P., Ritamaki, M., Lahti, K., Rytoluoto, I. & Paajanen, M., 29 Jun 2018, ICPADM 2018 - 12th International Conference on the Properties and Applications of Dielectric Materials. IEEE Institute of Electrical and Electronic Engineers , p. 41-44 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Polypropylenes
Electric space charge
capacitors
direct current
Nanoparticles
1 Citation (Scopus)

Potentiality of nanofilled thermoplastic insulation for DC cables and capacitors

Montanari, G. C., Seri, P., Paajanen, M., Lahti, K., Rytoluoto, I., Ritamaki, M., Blume, A., Dierkes, W., Mahtabani, A. & He, X., 19 Sep 2018, 2018 IEEE 2nd International Conference on Dielectrics: ICD 2018. IEEE Institute of Electrical and Electronic Engineers , p. 114DUMMY 8468427

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Thermoplastics
Insulation
Cables
Capacitors
Polypropylenes
2017

Nanocomposite Polypropylene For DC Cables And Capacitors: A New European Project

Montanari, G. C., Seri, P., Karttunen, M., Paajanen, M., Lahti, K. & Rytöluoto, I., 27 Oct 2017, 2017 International Symposium on Electrical Insulating Materials (ISEIM). IEEE Institute of Electrical and Electronic Engineers , Vol. 1. p. 433-436 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

Polypropylenes
Nanocomposites
Cables
Capacitors
Electric space charge
2016
3 Citations (Scopus)

Measurement of Sensitivity Distribution Map of a Ferroelectret Polymer Film

Rajala, S., Paajanen, M. & Lekkala, J., 2016, In : IEEE Sensors Journal. 16, 23, p. 8517 - 8522

Research output: Contribution to journalArticleScientificpeer-review

Polymer films
sensitivity
sensors
Sensors
polymers
2015

High-performance barrier films for flexible organic display and lighting applications

Kimmel, J., Nikkola, J., Räsänen, L., Willberg-Keyriläinen, P., Viljanen, H. & Paajanen, M., 29 Jul 2015, Digest of technical papers : OLED Encapsulation and Reliability. Wiley, p. 111-113 (SID International Symposium: Digest of Technical Papers).

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Lighting
Display devices
Permeation
Oxygen
Atomic layer deposition
2014

Flame retardant polypropylene copolymer and EVA blends filled with micro- and nanoparticles of magnesium hydroxide

Rodriguez-Fernández, O., Morales, G., Espinoza-González, C., Yañez-Flores, I., Paajanen, M., Pasanen, S., Bocanegra, J., Benavides, R. & Tena, C., 2014, ANTEC 2014 Conference Proceedings. Society of plastics engineers, p. 2003-2007

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Magnesium Hydroxide
Flame Retardants
Polypropylenes
Copolymers
Nanoparticles
2013

Enhancement in environmental properties of PVC-wood composites by thermally treated wood and silanemodified ZnO nanoparticles

Saarimäki, E., Paajanen, M., Minkkinen, H., Aguilar, A., Román-Aguirre, M., Benavides, R., Bocanegra, J., Tena, C., Martinez, J. & Ferroni, F., 2013, Abstract: Euro Intelligent Materials 2013.

Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsScientific

wood flour
wood plastic composites
environmental enrichment
wood properties
composite materials

Functionalization of nanoparticles for antimicrobial, UV protection and flame retardant applications

Pasanen, S., Paajanen, M., Saarimäki, E., Morales, G., Rodríguez-Fernández, O., Espinoza-González, C., Yañez-Flores, I., Benavides-Perez, R., Bocanegra-Rojas, J-G., Tena-Salcido, C-S., Deluna-Guajardo, G., Martinez-Martinez, Bellomo, L., Carfagnini, A., Battelli, R. & Ferroni, F., 2013.

Research output: Contribution to conferenceConference articleScientific

Flame Retardants
Nanoparticles
Polymers
Surface treatment
Magnesium Hydroxide

Methods of synthesis for large-scale production of nanoparticles, using as precursors derivated materials from mining processes

Ruiz, F., Niño-Martinez, N., Benavides-Perez, R., Bocanegra-Rojas, J-G., Martínez-Martínez, J-M., Flores-Amozurrutia, L., Morales, G., Rodriguez-Fernandez, O., Pasanen, S., Eetta, S., Paajanen, M., Bellomo, L., Carfagnini, A., Battelli, R. & Ferroni, F., 2013, Abstract: VI International Conference on Surfaces, Materials and Vacuum.

Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsScientific

Nanoparticles
Raw materials
Semiconductor materials
Plastics

New high-quality mined nanomaterials mass produced for plastic and wood-plastic nanocomposites: General overview

Paajanen, M., Benavides, R., Olsen, S., Rodriguez, O., Aguilar, A., Bellomo, L. O., Poppi, R., Ruiz, F., Zamudio, B., Nieble, M., Pasanen, S., Saarimäki, E., Minkkinen, H., Bocanegra, J., Tena, C., Deluna, G., Martinez, J-M., Miseljic, M., Morales, G., Espinoza-Gonzalez, C. & 8 others, Yanez, I., Roman, M., Gonzalez, G., Herrera, E., Orrantia, E., Glossman-Mitnik, D., Carfagnini, A. & Battelli, R., 2013, Abstract: VI International Conference on Surfaces, Materials and Vacuum.

Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsScientific

Nanostructured materials
Nanocomposites
Wood
Plastics
Nanoparticles

Photo-degradation and UV stability of zinc-oxide filled polypropylene random copolymer and homopolymer nanocomposites concluding to pilot line tests

Pasanen, S., Paajanen, M., Morales, G., Rodríguez-Fernández, O., Espinoza-González, C., Yañez-Flores, I., Benavides-Perez, R., Bocanegra-Rojas, J-G., Tena-Salcido, C-S., Deluna-Guajardo, G., Martinez-Martinez, Bellomo, L., Carfagnini, A., Battelli, R. & Ferroni, F., 2013, Abstract: Euro Intelligent Materials 2013.

Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsScientific

Plastics applications
Photodegradation
Zinc oxide
Homopolymerization
Silanes

PVC-based wood plastic composites (WPC) and its discoloration issue: Application, challenges and opportunities of nanotechnologies

Ferroni, F., Montresor, L., Poppi, R., Paajanen, M., Minkkinen, H., Saarimaki, E., Aguilar, A., Roman-Aguirre, M., Benavides, R., Bocanegra, J., Tena, C., Deluna, G. & Manuel Martinez, J., 2013, Abstract: VI International Conference on Surfaces, Materials and Vacuum.

Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsScientific

wood plastic composites
zinc oxide
nanotechnology
discoloration
nanoparticles

PVC-wood composite: Processing and compsition challenges for improving the environmental durability by nanoparticles

Minkkinen, H., Paajanen, M., Saarimäki, E., Aquilar, A., Román Aguirre, M., Ferroni, F., Poppi, R., Benavides, R., Bocanegra, J., Tena, C., Deluna, G. & Martinez, J-M., 2013, Published abstract of a poster: VI International Conference on Surfaces, Materials and Vacuum.

Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsScientific

composite materials
nanoparticles
durability
lubricants
surface quality

UV absorption properties and thermal stability of coated zinc oxide in polypropylene nanocomposites

Pasanen, S., Paajanen, M., Morales, G., Rodríguez-Fernández, O., Espinoza-González, C., Yañez-Flores, I., Benavides-Perez, R., Bocanegra-Rojas, J-G., Tena-Salcido, C-S., Deluna-Guajardo, G., Martinez-Martinez, Bellomo, L., Carfagnini, A., Battelli, R. & Ferroni, F., 2013.

Research output: Contribution to conferenceConference PosterScientific

Zinc Oxide
Polypropylenes
Nanocomposites
Thermodynamic stability
Plastics applications
2012
2 Citations (Scopus)

Thermally more durable electromechanical films by POSS nanomodification

Paajanen, M., Karttunen, M., Kortet, S. & Orko, I., 2012, In : Key Engineering Materials. 538, p. 65-68 3 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
Polypropylenes
Diffusion in gases
Alkenes
Gold
Olefins
2011

Some photodegradation and reprocessing properties of polypropylene zinc-oxide nanocomposites

Kortet, S., Paajanen, M., Joki, H., Fernández, O., Morales, G., Battelli, R. & de Luna, G., 2011.

Research output: Contribution to conferenceConference articleScientific

Photodegradation
Zinc oxide
Polypropylenes
Nanocomposites
Composite materials
2009

Dielectric nanocompounds produced by melt state processing

Paajanen, M., Pelto, J., Karttunen, M. & Takala, M., 2009. 14 p.

Research output: Contribution to conferenceConference articleScientific

Nanoparticles and nanotechnology at VTT

Paajanen, M., 2009. 11 p.

Research output: Contribution to conferenceConference articleScientific

1 Citation (Scopus)

Polymer nanocomposite development for electronic industry needs

Koskinen, J., Karttunen, M., Paajanen, M. & Sarlin, J., 2009, Nanocomposite Materials. Kny, E. (ed.). p. 3-9 (Solid State Phenomena, Vol. 151).

Research output: Chapter in Book/Report/Conference proceedingChapter or book articleScientificpeer-review

nanocomposites
industries
conductivity
Finland
polymers
2008
1 Citation (Scopus)

Nanomodified Thermally More Durable Cellular Electromechanical Films from PP/POSS, PP/COC/POSS and COC/POSS Compounds

Paajanen, M., Karttunen, M. & Kortet, S., 2008, Proceedings: 13th International Symposium on Electrets, ISE13 2008. Piscataway, NJ: IEEE Institute of Electrical and Electronic Engineers

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Polypropylenes
Alkenes
Copolymers
Consumer products
Transducers
2007
18 Citations (Scopus)

Charging Properties and Time-temperature Stability of Innovative Polymeric Cellular Ferroelectrets

Montanari, G. C., Ciani, F., Motori, A., Paajanen, M., Gerhard-Multhaupt, R. & Wegener, M., 2007, In : IEEE Transactions on Dielectrics and Electrical Insulation. 14, 1, p. 238-248

Research output: Contribution to journalArticleScientificpeer-review

Electrets
Electric space charge
Stretching
Partial discharges
Polymers

Compliand elastomer electrodes for polymer actuators (EAP)

Karttunen, M. & Paajanen, M., 2007, In : World Wide ElectroActive Polymer Newsletter. 9, 2, p. 11-12

Research output: Contribution to journalArticleProfessional

Compliant elastomer electrodes for polymer actuators (EAP)

Karttunen, M., Immonen, K., Paajanen, M. & Pelto, J., 2007, Nanotech Northern Europe 2007 Program: Abstracts. 52

Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsProfessional

180 Citations (Scopus)

Energy minimization for self-organized structure formation and actuation

Kofod, G., Wirges, W., Paajanen, M. & Bauer, S., 2007, In : Applied Physics Letters. 90, 3 p., 081916.

Research output: Contribution to journalArticleScientificpeer-review

actuation
elastic bending
optimization
elastomers
plastics
2006

Applied Material Research at VTT

Ritschkoff, A-C. (ed.), Koskinen, J. (ed.) & Paajanen, M. (ed.), 2006, Espoo: VTT Technical Research Centre of Finland. 334 p. (VTT Symposium; No. 244).

Research output: Book/ReportBook (editor)

Open Access
Innovation
Industry
Functional materials
Information services
Nanostructured materials
7 Citations (Scopus)

Capacitance dilatometry for the in-situ controlled expansion process of the cellular polymer-filler composites (ferroelectrets)

Leonhartsberger, J., Salhofer, H., Schwödiauer, R., Bauer-Gogonea, S., Bauer, S., Fostner, R., Eder, G., Paajanen, M., Minkkinen, H. & Raukola, J., 2006, In : Ferroelectrics. 331, 1, p. 181-187 7 p.

Research output: Contribution to journalArticleScientificpeer-review

dilatometry
fillers
Fillers
Polymers
foaming

Nanopolymeerit jäljittelevät biologista liikettä

Paajanen, M., 2006, In : Kemia-Kemi. 4, 19.

Research output: Contribution to journalArticleProfessional

55 Citations (Scopus)

Novel heat durable electromechanical film: Processing for electromechanical and electret applications

Saarimäki, E., Paajanen, M., Savijärvi, A-M., Minkkinen, H., Wegener, M., Voronina, O., Schulze, R., Wirges, W. & Gerhard-Multhaupt, R., 2006, In : IEEE Transactions on Dielectrics and Electrical Insulation. 13, 5, p. 963-972 10 p.

Research output: Contribution to journalArticleScientificpeer-review

Electrets
Olefins
Processing
Actuators
Foams
2 Citations (Scopus)

Out of plane actuator concept and characterization of dielectric elastomer EAP materials

Paajanen, M., Jouppila, V., Ellman, A., Bauer, S., Kofod, G., Karesoja, M. & Tenhu, H., 2006, Applied Material Research at VTT: Symposium on Applied Materials. Espoo: VTT Technical Research Centre of Finland, p. 50-60 (VTT Symposium; No. 244).

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

Open Access
Elastomers
Actuators
Tapes
Stretching
Electric potential
107 Citations (Scopus)

Self-organized minimum-energy structures for dielectric elastomer actuators

Kofod, G., Paajanen, M. & Bauer, S., 2006, In : Applied Physics A: Materials Science and Processing. 85, 2, p. 141-143 3 p.

Research output: Contribution to journalArticleScientificpeer-review

Elastomers
elastomers
Actuators
actuators
plastics
2005
4 Citations (Scopus)

Comparison and electrical modeling of new polymeric cellular electrets

Montanari, C. G., Mazzanti, G., Ciani, F. & Paajanen, M., 2005, In : IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control. 52, 11, p. 2088 - 2095 8 p.

Research output: Contribution to journalArticleScientificpeer-review

Electrets
electrets
charging
Partial discharges
Electric space charge
26 Citations (Scopus)

Elastic and electromechanical properties of polypropylene foam ferroelectrets

Dansachmüller, M., Schwödiauer, R., Bauer-Gogonea, S., Bauer, S., Paajanen, M. & Raukola, J., 2005, In : Applied Physics Letters. 86, 3, 3 p., 031910.

Research output: Contribution to journalArticleScientificpeer-review

polypropylene
foams
transducers
elastic properties
electrets
2004
121 Citations (Scopus)

Controlled inflation of voids in cellular polymer ferroelectrets: Optimizing electromechanical transducer properties

Wegener, M., Wirges, W., Gerhard-Multhaupt, R., Dansachmüller, M., Schwödiauer, R., Bauer-Gogonea, S., Bauer, S., Paajanen, M., Minkkinen, H. & Raukola, J., 2004, In : Applied Physics Letters. 84, 3, p. 392 - 394 3 p.

Research output: Contribution to journalArticleScientificpeer-review

voids
modulus of elasticity
transducers
electrets
polymers
2002
112 Citations (Scopus)

Dielectric barrier microdischarges. Mechanism for the charging of cellular piezoelectric polymers

Lindner, M., Bauer-Gogonea, S., Bauer, S., Paajanen, M. & Raukola, J., 2002, In : Journal of Applied Physics. 91, 8, p. 5283-5287

Research output: Contribution to journalArticleScientificpeer-review

foams
charging
polymers
breakdown
light emission
2001

Active noise control in cars and trains using EMFi panel actuators as anti-noise sources

Nykänen, H., Antila, M., Ollikainen, V-J., Lekkala, J., Paajanen, M., Uosukainen, S. & Kirjavainen, K., 2001, 1st European Forum on Materials and Transportation Noise and Vibration Control. Senlis, FR, 2 - 5 July 2001. p. 419-441

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

80 Citations (Scopus)

Electromechanical modeling and properties of the electret film EMFI

Paajanen, M., Lekkala, J. & Välimäki, H., 2001, In : IEEE Transactions on Dielectrics and Electrical Insulation. 8, 4, p. 629-636 8 p.

Research output: Contribution to journalArticleScientificpeer-review

Electrets
Actuators
Transducers
Sensors
Loudspeakers

EMFi-technology in active noise control - An overview

Nykänen, H., Antila, M., Kataja, J., Lekkala, J., Paajanen, M., Uosukainen, S. & Kirjavainen, K., 2001. 20 p.

Research output: Contribution to conferenceConference articleScientific

97 Citations (Scopus)

Piezo- and pyroelectricity of a polymer-foam space-charge electret

Neaugschwandtner, G., Schwödiauer, R., Bauer-Gogonea, S., Bauer, S., Paajanen, M. & Lekkala, J., 2001, In : Journal of Applied Physics. 89, 8, p. 4503-4511 9 p.

Research output: Contribution to journalArticleScientificpeer-review

pyroelectricity
electrets
foams
space charge
polymers
8 Citations (Scopus)
electrets
polypropylene
coefficients
coronas
charging
162 Citations (Scopus)

Understanding the role of the gas in the voids during corona charging of cellular electret films: A way to enhance their piezoelectricity

Paajanen, M., Wegener, M. & Gerhard-Multhaupt, R., 2001, In : Journal of Physics D: Applied Physics. 34, 16, p. 2482-2488 7 p.

Research output: Contribution to journalArticleScientificpeer-review

Electrets
electrets
piezoelectricity
Piezoelectricity
coronas
2000
27 Citations (Scopus)

Determination of the actuator sensitivity of electromechanical polypropylene films by atomic force microscopy

Peltonen, J., Paajanen, M. & Lekkala, J., 2000, In : Journal of Applied Physics. 88, 8, p. 4789 - 4793 5 p.

Research output: Contribution to journalArticleScientificpeer-review

polypropylene
actuators
atomic force microscopy
sensitivity
electric charge
229 Citations (Scopus)

ElectroMechanical Film (EMFi): A new multipurpose electret material

Paajanen, M., Lekkala, J. & Kirjavainen, K., 2000, In : Sensors and Actuators A: Physical. 84, 1-2, p. 95 - 102 8 p.

Research output: Contribution to journalArticleScientificpeer-review

Electrets
electrets
Actuators
actuators
Loudspeakers