E A Retulainen

D.Sc. (Tech), Principal Scientist

1985 …2019
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Research Output 1985 2019

2019

Analysis of cellulose nanocrystals (CNCs) with flow cytometry

Strand, A., Vähäsalo, L., Retulainen, E. & Sundberg, A., 30 Jan 2019, In : Cellulose. 26, 2, p. 959-970 12 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
Flow cytometry
Cellulose
Nanocrystals
Kraft pulp
Softwoods
2 Citations (Scopus)

A new protocol for efficient and high yield preparation of cellulose nanofibrils

Peng, Y., Duan, C., Elias, R., Lucia, L. A. & Fu, S., 30 Jan 2019, In : Cellulose. 26, 2, p. 877-887 11 p.

Research output: Contribution to journalArticleScientificpeer-review

Cellulose
Acids
Sulfuric acid
Alkalies
Transparency
1 Citation (Scopus)

Cellulose nanofibrils prepared by gentle drying methods reveal the limits of helium ion microscopy imaging

Ketola, A. E., Leppänen, M., Turpeinen, T., Papponen, P., Strand, A., Sundberg, A., Arstila, K. & Retulainen, E., 1 Jan 2019, In : RSC Advances. 9, 27, p. 15668-15677 10 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
oxidized cellulose
Helium
Cellulose
Drying
Microscopic examination
1 Citation (Scopus)

Effect of mechanically induced micro deformations on extensibility and strength of individual softwood pulp fibers and sheets

Kouko, J., Jajcinovic, M., Fischer, W., Ketola, A., Hirn, U. & Retulainen, E., 15 Feb 2019, In : Cellulose. 26, 3, p. 1995-2012 18 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
Softwoods
Pulp
Fibers
Elongation
Fiber bonding
1 Citation (Scopus)

Enhanced strength, stiffness and elongation potential of paper by spray addition of polysaccharides

Strand, A., Kouko, J., Oksanen, A., Salminen, K., Ketola, A., Retulainen, E. & Sundberg, A., 8 Feb 2019, In : Cellulose. 26, 5, p. 3473-3487 15 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
Alginate
Polysaccharides
guar gum
Elongation
Stiffness

Foam as a carrier fluid in papermaking

Lehmonen, J., Koponen, A., Kinnunen-Raudaskoski, K., Paltakari, J. & Retulainen, E., 2019.

Research output: Contribution to conferenceConference AbstractScientific

Influence of the Hemicellulose Content on the Fiber Properties, Strength, and Formability of Handsheets

Pere, J., Pääkkönen, E., Ji, Y. & Retulainen, E., 2019, In : BioResources. 14, 1, p. 251- 263 13 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
Formability
Fibers
Xylans
swelling
Swelling
1 Citation (Scopus)

X-Ray Nanotomography of Individual Pulp Fibre Bonds Reveals the Effect of Wall Thickness on Contact Area

Sormunen, T., Ketola, A., Miettinen, A., Parkkonen, J. & Retulainen, E., 12 Mar 2019, In : Scientific Reports. 9, 1, p. 4258 7 p., 4258.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
X-Rays
X Ray Computed Tomography
Research
Cellulose
Light
2018

A Prediction Model for Grafting Reactive Red 120 on Nanocellulose

Wang, W., Fu, S., Peng, Y., Zheng, X. & Retulainen, E., 22 Oct 2018, In : BioResources. 13, 4, p. 8814-8822

Research output: Contribution to journalArticleScientificpeer-review

Open Access
Dyeing
prediction
dye
Coloring Agents
Dyes

Boosting the drying shrinkage, extensibility and strength of paper with fibrillated cellulose

Ketola, A., Strand, A., Sundberg, A., Kouko, J., Oksanen, A., Salminen, K., Fu, S. & Retulainen, E., 2018.

Research output: Contribution to conferenceConference AbstractScientific

extensibility
strength (mechanics)
shrinkage
cellulose
drying

Boosting the elongation potential of paper by mechanical refining and additives

Strand, A., Kouko, J., Oksanen, A., Salminen, K., Ketola, A., Retulainen, E. & Sundberg, A., 2018, In : Tappi Journal. 17, 9, p. 489-498

Research output: Contribution to journalArticleScientificpeer-review

Refining
Elongation
Drying
Stiffness
guar gum

Boosting the elongation potential of paper by mechanical refining and additives

Strand, A., Kouko, J., Oksanen, A., Salminen, K., Ketola, A., Retulainen, E. & Sundberg, A., 2018, Paper Conference and Trade Show (PaperCon 2018). TAPPI Press, Vol. 2. p. 761-770 10 p.

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

refining
drying
carboxymethylcellulose
alginates
polysaccharides

Dual Light- and pH-Responsive Composite of Polyazo-Derivative Grafted Cellulose Nanocrystals

Liu, X., Li, M., Zheng, X., Retulainen, E. & Fu, S., 14 Sep 2018, In : Materials. 11, 9, 13 p., 1725.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
Cellulose derivatives
Cellulose
Nanocrystals
Composite materials
Macros

Effect of micro- and nanofibrillated cellulose on the drying shrinkage, extensibility, and strength of fibre networks

Ketola, A., Strand, A., Sundberg, A., Kouko, J., Oksanen, A., Salminen, K., Fu, S. & Retulainen, E., 2018, In : BioResources. 13, 3, p. 5319-5342

Research output: Contribution to journalArticleScientificpeer-review

Open Access
Cellulose
cellulose
Elongation
Drying
spray
3 Downloads (Pure)

Extensible Cellulosic Fibre-polyurethane Composites Prepared via the Papermaking Pathway

Vishtal, A., Khakalo, A. & Retulainen, E., 23 May 2018, In : BioResources. 13, 3, p. 5360-5376

Research output: Contribution to journalArticleScientificpeer-review

Open Access
Polyurethanes
Papermaking
Formability
plastic
Fibers
6 Downloads (Pure)

Fiber Evolution during Alkaline Treatment and Its Impact on Handsheet Properties

Ji, Y., Peng, Y., Strand, A., Fu, S., Sundberg, A. & Retulainen, E., 2018, In : BioResources. 13, 4, p. 7310-7324 15 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
Fibers
Cellulose
cellulose
swelling
Swelling
2 Citations (Scopus)

In-situ analysis of polyelectrolyte complexes by flow cytometry

Strand, A., Vähäsalo, L., Ketola, A., Salminen, K., Retulainen, E. & Sundberg, A., 1 Jul 2018, In : Cellulose. 25, 7, p. 3781-3795 15 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
Flow cytometry
Polyelectrolytes
Turbidity
Hydrophobicity
Complex Mixtures

Stress–strain curve of single pulp fibres and paper

Kouko, J., Jajcinovic, M., Fischer, W., Ketola, A., Hirn, U. & Retulainen, E., 16 May 2018, Proceedings of Paper and Biorefinery Conference 16-17 May 2018: Abstracts. APV Graz - Akademischer Papieringenieurs Verein, p. 40-41 2 p. TF3/11

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

Pulp
Fibers
Elongation
Refining
Stress-strain curves
1 Citation (Scopus)
Open Access
Dispersions
Polymers
Fibers
Formability
Thermoforming
2 Citations (Scopus)

The relationship between shrinkage and elongation of bleached softwood kraft pulp sheets

Kouko, J. & Retulainen, E., 2018, In : Nordic Pulp and Paper Research Journal. 33, 3, p. 522-533 12 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
kraft pulp
Kraft pulp
Softwoods
softwood
shrinkage

The sol-gel transition of ultra-low solid content TEMPO-cellulose nanofibril/mixed-linkage β-glucan bionanocomposite gels

Arola, S., Ansari, M., Oksanen, A., Retulainen, E., Hatzikiriakos, S. G. & Brumer, H., 28 Nov 2018, In : Soft Matter. 14, 46, p. 9393-9401 9 p.

Research output: Contribution to journalArticleScientificpeer-review

Glucans
cellulose
linkages
oxidized cellulose
Cellulose

Understanding Extensibility of Paper: Role of Fiber Elongation and Fiber Bonding

Kouko, J., Turpeinen, T., Kulachenko, A., Hirn, U. & Retulainen, E., 5 May 2018.

Research output: Contribution to conferenceConference AbstractScientific

Fiber bonding
Elongation
Fibers
Stress-strain curves
Pulp

Understanding the relationship between shrinkage and elongation of paper

Kouko, J. & Retulainen, E., 23 Sep 2018, Progress in Paper Physics Seminar 2018, Lodz, Poland, September 23-27, 2018: Abstract book. Lodz, Poland: Lodz university press, p. 32-34 3 p.

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

X-ray nanotomography of individual fibre bonds: The effect of fibre wall thickness on contact area

Sormunen, T., Ketola, A., Miettinen, A., Parkkonen, J. & Retulainen, E., 23 Sep 2018, Progress in Paper Physics Seminar 2018: Abstract book . Wysocka-Robak, A. & Dybka-Stępień, K. (eds.). Lodz, Poland: Lodz university press, p. 69-71 3 p.

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

X rays
Fibers
Imaging techniques
Kraft pulp
Softwoods
2017
Open Access
Fibers
Deinking
tensile strength
compressive strength
Compressive strength

Effect of mechanical treatment on the straining behavior of single softwood pulp fibers

Kouko, J., Jajcinovic, M., Fischer, W., Ketola, A., Hirn, U. & Retulainen, E., 2017, Deformation and Damage Mechanisms of Wood-Fibre Network-Materials and Structures: Book of abstracts. p. 18-19 (Euromech Colloquium, Vol. 592).

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

Open Access

Individual fibre bonds studied by X-ray nanotomography

Retulainen, E., Parkkonen, J. & Miettinen, A., 2017.

Research output: Contribution to conferenceOther conference contributionScientific

X rays
Fibers
Chemical properties
Stiffness
5 Citations (Scopus)

In-plane compression and biopolymer permeation enable superstretchable fiber webs for thermoforming toward 3-D structures

Khakalo, A., Kouko, J., Filpponen, I., Retulainen, E. & Rojas, O., 2 Oct 2017, In : ACS Sustainable Chemistry & Engineering. 5, 10, p. 9114-9125 12 p.

Research output: Contribution to journalArticleScientificpeer-review

Thermoforming
Biopolymers
Permeation
Compaction
compression

Measurement of Thermoplastic Properties of Packaging Materials

Kouko, J., Paakkolanvaara, M. & Retulainen, E., 2017, Proceedings of the 28th IAPRI Symposium on Packaging 2017.

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

Packaging materials
Polymer films
Thermoplastics
Paperboards
Thermoforming
9 Citations (Scopus)

Mechanically-induced dimensional extensibility of fibers towards tough fiber networks

Khakalo, A., Vishtal, A., Retulainen, E., Filpponen, I. & Rojas, O. J., 1 Jan 2017, In : Cellulose. 24, 1, p. 191-205 15 p.

Research output: Contribution to journalArticleScientificpeer-review

Fibers
Fiber bonding
Composite materials
Dispersions
Refining

Recycled fibres and fibre sludge as reinforcement materials in injection moulded PP and PLA composites

Pääkkönen, E., Wikström, L., Peltola, H., Valta, K. & Retulainen, E., 2017, In : Journal of Bioresources and Bioproducts. 2, 3, p. 116-122

Research output: Contribution to journalArticleScientificpeer-review

Open Access
polylactic acid
composite materials
polypropylenes
sludge
injection
5 Citations (Scopus)

The effect of chemical additives on the strength, stiffness and elongation potential of paper

Strand, A., Khakalo, A., Kouko, J., Oksanen, A., Ketola, A., Salminen, K., Rojas, O., Retulainen, E. & Sundberg, A., 1 Jan 2017, In : Nordic Pulp and Paper Research Journal. 32, 3, p. 324-335 12 p.

Research output: Contribution to journalArticleScientificpeer-review

Carboxymethylcellulose Sodium
carboxymethylcellulose
cellulose
stiffness
Elongation

Wet web runnability characteristics of mechanical pulps

Kouko, J., Salminen, K. & Retulainen, E., 2017. 2 p.

Research output: Contribution to conferenceConference articleScientific

X-ray nanotomography of individual fibre bonds

Retulainen, E., Parkkonen, J. & Miettinen, A., 2017, EUROMECH Colloquium 592: Book of Abstracts. p. 56-57

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

Open Access
X-radiation
2016
8 Citations (Scopus)

Cellulose kraft pulp reinforced polylactic acid (PLA) composites: effect of fibre moisture content

Virtanen, S., Wikström, L., Immonen, K., Anttila, U. & Retulainen, E., 2016, In : AIMS Materials Science. 3, 3, p. 756-769

Research output: Contribution to journalArticleScientificpeer-review

Open Access
Kraft pulp
Cellulose
Moisture
Acids
Fibers
Open Access
Fibers
Recycling
recycling
fibre
material

Combined mechanical and chemical modifications towards super-stretchable paper-based materials

Khakalo, A., Kouko, J., Filpponen, I., Retulainen, E. & Rojas, O. J., 2016, Book of abstracts.

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

Chemical modification
Packaging materials
Fibers
Biodegradability
Composite materials

Effect of polyurethane addition on the strength, extensibility and 3D formability of paper and board

Vishtal, A., Khakalo, A., Kouko, J. & Retulainen, E., 2016.

Research output: Contribution to conferenceConference articleScientific

Formability
Polyurethanes
Fibers
Adhesion
Electric power measurement

Evaluating the quality of recycled fibre material with a new concept

Keränen, J. T. & Retulainen, E., 2016, Progress in Paper Physics Seminar 2016: Proceedings. p. 230-233

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

Fibers
Availability
Recycling
Degradation

Improving the extensibility of thermoformable web structures with polymer dispersions

Kouko, J., Setälä, H., Ropponen, J. & Retulainen, E., 2016, Progress in Paper Physics Seminar 2016: Conference proceedings. p. 16-22

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

Open Access
extensibility
polymers
thermoplastics
cellulosic fibers
kraft pulp

Modeling of stress relaxation and elastic recovery of wet paper

Kouko, J., Sorvari, J. & Retulainen, E., 2016, Progress in Paper Physics Seminar 2016: Conference proceedings. p. 221-224

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

Open Access
Stress relaxation
Strain rate
Recovery
Kraft pulp
Softwoods

Recycled fibres and fibre sludge as reinforcement materials in injection molded composites

Pääkkönen, E., Wikström, L., Peltola, H., Valta, K. & Retulainen, E., 2016, 5th International Symposium on Emerging Technologies of Pulping and Papermaking & 3rd International Papermaking and Environment Conference, 5th ISETPP & 3rd IPEC: Proceedings.

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

composite materials
sludge
injection
wood plastic composites
pulp fiber

The influence of strain rate and pulp properties on the stress relaxation of wet paper - modeling of relaxation

Kouko, J., Sorvari, J. & Retulainen, E., 2016, In : Tappi Journal. 15, 11, p. 693-703

Research output: Contribution to journalArticleScientificpeer-review

Stress relaxation
Pulp
Strain rate
Fibers
Refining

Three-dimensional formability of paper

Retulainen, E., Vishal, A. & Kouko, J., 2016, 5th International Symposium on Emerging Technologies of Pulping and Papermaking & 3rd International Papermaking and Environment Conference, 5th ISETPP & 3rd IPEC: Proceedings.

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

Formability
Fibers
Elongation
Packaging
Drying

Tool for evaluation of the quality of recycled fiber material

Keränen, J. & Retulainen, E., 2016, 5th International Symposium on Emerging Technologies of Pulping and Papermaking & 3rd International Papermaking and Environment Conference, 5th ISETPP & 3rd IPEC: Proceedings.

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

Fibers
Deinking
Screening

X-ray nanotomography of fibre bonds

Retulainen, E., Parkkonen, J. & Miettinen, A., 2016, Progress in Paper Physics Seminar 2016: Conference proceedings. p. 162-168

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

Open Access
X rays
Fibers
Scanning
Softwoods
Cellulose
2015

Drying tension and shrinkage in paper and board: Part 2 A symmetric three-ply board

Retulainen, E., Martikainen, P. & Timofeev, O., 2015, In : Appita Journal. 68, 1, p. 55-59

Research output: Contribution to journalArticleScientificpeer-review

Drying
Driers (materials)
Paperboards
Stiffness

Drying tension and shrinkage in paper and board: Part 1 Single ply sheets of chemical and mechanical furnishes

Retulainen, E., Martikainen, P. & Timofeev, O., 2015, In : Appita Journal. 68, 1, p. 51-54

Research output: Contribution to journalArticleScientificpeer-review

Drying
Moisture
Temperature

Effect of heating on wet paper tensile stiffness and tension relaxation

Kouko, J., Retulainen, E. & Kekko, P., 2015, EUROMECH Colloquium 556. p. 46-47

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

12 Citations (Scopus)

Improving the extensibility of paper: Sequential spray addition of gelatine and agar

Vishtal, A., Khakalo, A., Rojas, O. & Retulainen, E., 2015, In : Nordic Pulp and Paper Research Journal. 30, 3, p. 452-460

Research output: Contribution to journalArticleScientificpeer-review

extensibility
gelatin
agar
spray
Agar