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Christophliemk, HannaORCID iD iconorcid.org/0000-0002-6832-0444
Publications (10 of 11) Show all publications
Christophliemk, H., Johansson, C., Ullsten, H. & Järnström, L. (2017). Oxygen and water vapor transmission rates of starch-poly(vinyl alcohol) barrier coatings for flexible packaging paper. Progress in organic coatings, 113, 218-224
Open this publication in new window or tab >>Oxygen and water vapor transmission rates of starch-poly(vinyl alcohol) barrier coatings for flexible packaging paper
2017 (English)In: Progress in organic coatings, ISSN 0300-9440, E-ISSN 1873-331X, Vol. 113, p. 218-224Article in journal (Refereed) Published
Abstract [en]

Creating efficient water-borne dispersions based mainly on renewable materials for coating of flexible packaging paper was the aim of this study. The effects of an ethylene modified poly(vinyl alcohol) grade and a standard poly(vinyl alcohol) on the oxygen and water vapor barrier performance of corn starch and potato starch coatings was studied. The results showed that a coating composition with a high fraction of a renewable polymer was effective in keeping the oxygen barrier at a technically and commercially applicable level. An ethylene modified poly(vinyl alcohol) grade was found to provide lower oxygen transmission rates at high relative humidity, as compared to a standard poly(vinyl alcohol) grade. The oxygen barrier properties of blends of starch and poly (vinyl alcohol) were similar to that of the pure modified poly(vinyl alcohol) in the range from 0% starch to 60% starch. This was observed with both hydroxypropylated and octenyl succinate modified starch grades. The drying conditions of the mixed starch:poly(vinyl alcohol) coatings were based on drying trials with pure poly (vinyl alcohol) coatings. Drying at moderate temperatures indicated the possibility to slightly decrease water vapor transmission rate by higher drying temperature. Several secondary effects of increased drying temperature such as coating hold-out and formation of defects may also be of importance.

Place, publisher, year, edition, pages
Elsevier, 2017
National Category
Chemical Engineering
Research subject
Chemical Engineering
Identifiers
urn:nbn:se:kau:diva-65894 (URN)10.1016/j.porgcoat.2017.04.019 (DOI)000414114700024 ()
Funder
EU, FP7, Seventh Framework Programme
Available from: 2018-01-25 Created: 2018-01-25 Last updated: 2019-07-10Bibliographically approved
Christophliemk, H., Ullsten, H., Johansson, C. & Järnström, L. (2017). Starch-poly(vinyl alcohol) barrier coatings for flexible packaging paper and their effects of phase interactions. Progress in organic coatings, 111, 13-22
Open this publication in new window or tab >>Starch-poly(vinyl alcohol) barrier coatings for flexible packaging paper and their effects of phase interactions
2017 (English)In: Progress in organic coatings, ISSN 0300-9440, E-ISSN 1873-331X, Vol. 111, p. 13-22Article in journal (Refereed) Published
Abstract [en]

Starch and poly(vinyl alcohol) based barrier coatings for flexible packaging papers were studied. Both octenyl succinate modified and hydroxypropylated corn and potato starches were blended with regular and ethylene modified poly(vinyl alcohol) to increase the water vapor barrier properties and enhance the flexibility of the starch coatings, in order to accomplish superior barrier performance. Phase separation between starch and poly (vinyl alcohol) was studied in detail, both in the solution and in dry draw-down coatings on paper. The barrier performance of the coated paper was evaluated with respect to water vapor transmission rate. Conditions for the creation of a thin surface layer consisting of only one of the pure polymers were identified and discussed in terms of phase separation in solution migration of poly(vinyl alcohol) to the uppermost surface layer. The phase separation promoted low water vapor transmission rates also with a rather high fraction of starch in the coatings

Place, publisher, year, edition, pages
Elsevier, 2017
National Category
Polymer Chemistry Polymer Technologies Paper, Pulp and Fiber Technology
Identifiers
urn:nbn:se:kau:diva-65723 (URN)10.1016/j.porgcoat.2017.04.018 (DOI)000407184600002 ()
Available from: 2018-01-18 Created: 2018-01-18 Last updated: 2019-07-10Bibliographically approved
Rautkoski, H., Hartman, J., Sirviö, J., Lahti, J., Saarikoski, E., Karhunen, P., . . . Seppälä, J. (2013). Biobarriers from laboratory scale to pilot scale. In: : . Paper presented at FuBio - open seminar of Finnish Future Biorefinery, 27.8.2013, VTT Technical Research Centre, Helsinki Finland.
Open this publication in new window or tab >>Biobarriers from laboratory scale to pilot scale
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2013 (English)Conference paper, Oral presentation only (Other academic)
National Category
Chemical Engineering Chemical Sciences
Identifiers
urn:nbn:se:kau:diva-38697 (URN)
Conference
FuBio - open seminar of Finnish Future Biorefinery, 27.8.2013, VTT Technical Research Centre, Helsinki Finland
Available from: 2015-11-24 Created: 2015-11-24 Last updated: 2016-05-27Bibliographically approved
Johansson, K., Christophliemk, H., Johansson, C., Jönsson, L. J. & Järnström, L. (2013). The effects of coating structure and water-holding capacity on the oxygen-scavenging ability of enzymes embedded in the coating layer. TAPPI Journal, 12(6), 43-52
Open this publication in new window or tab >>The effects of coating structure and water-holding capacity on the oxygen-scavenging ability of enzymes embedded in the coating layer
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2013 (English)In: TAPPI Journal, ISSN 0734-1415, Vol. 12, no 6, p. 43-52Article in journal (Refereed) Published
Abstract [en]

Enzymes catalyzing oxygen scavenging were embedded in latex-based coatings with and without barrier kaolin clay to produce material for active packages. The clay was used to create a porous structure, and the closed-structure matrix consisted of a biopolymer comprising either starch or gelatin to increase the water uptake of the coating. The effects of the porous open structure and of the water uptake of the coated layer on the oxygen-scavenging ability of the embedded enzymes were examined at both 75% and 100% relative humidity. The results showed that the porous clay structure led to higher oxygen-scavenging capacity than that of a closed structure at both test conditions by enabling a high diffusion rate for oxygen and glucose to the active sites of the enzymes. The addition of a water-holding biopolymer did not always significantly affect the oxygen-scavenging capacity. However for a less-porous layer at 100% relative humidity, an increase in the amount of biopolymer resulted in an increase in oxygen-scavenging capacity. The results were treated statistically using multiple-factor analysis where the most important factor for the oxygen-scavenging ability was found to be the addition of clay. The coatings were also characterized with respect to water vapor uptake, overall migration, porosity, and scanning electron microscopy images.

Place, publisher, year, edition, pages
TAPPI Press, 2013
Keywords
Active packaging, oxygen scavenging, enzymes, coating
National Category
Chemical Engineering Industrial Biotechnology
Research subject
Chemical Engineering
Identifiers
urn:nbn:se:kau:diva-28458 (URN)000321046600005 ()
Available from: 2013-07-08 Created: 2013-07-08 Last updated: 2019-06-10Bibliographically approved
Kovaz, J., Lahti, J., Christophliemk, H., Dubreuil, M., Vangeneugden, D., Rose, K., . . . Ketonen, M. (2012). Characterization of air-plasma deposited sol-gel coating on the paper substrate by SIMS, XPS and AFM techniques. In: Final program and abstracs: . Paper presented at SIMS Europe 2012 : The 8th European Workshop on Secondary Ion Mass Spectrometry, Muster, Germany 9.-11. September 2012 (pp. 67).
Open this publication in new window or tab >>Characterization of air-plasma deposited sol-gel coating on the paper substrate by SIMS, XPS and AFM techniques
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2012 (English)In: Final program and abstracs, 2012, p. 67-Conference paper, Poster (with or without abstract) (Other academic)
National Category
Chemical Sciences
Research subject
Chemistry; Chemical Engineering
Identifiers
urn:nbn:se:kau:diva-38696 (URN)
Conference
SIMS Europe 2012 : The 8th European Workshop on Secondary Ion Mass Spectrometry, Muster, Germany 9.-11. September 2012
Available from: 2015-11-24 Created: 2015-11-24 Last updated: 2016-03-31Bibliographically approved
Lahti, J., Lavonen, J. & Christophliemk, H. (2012). Nanoscale Surface Modification of Paperboard for Adhesion Improvement with Atmospheric Plasma Technology. In: : . Paper presented at I-SUP 2012 Innovation for Sustainable Production 2012, 6.-9. May 2012, Bruges, Belgium.
Open this publication in new window or tab >>Nanoscale Surface Modification of Paperboard for Adhesion Improvement with Atmospheric Plasma Technology
2012 (English)Conference paper, Poster (with or without abstract) (Other academic)
National Category
Chemical Engineering
Identifiers
urn:nbn:se:kau:diva-38698 (URN)
Conference
I-SUP 2012 Innovation for Sustainable Production 2012, 6.-9. May 2012, Bruges, Belgium
Available from: 2015-11-24 Created: 2015-11-24 Last updated: 2016-03-31Bibliographically approved
Christophliemk, H., Ullsten, H., Johansson, C. & Järnström, L. (2011). Exploiting the synergies between starch, nanoclay and other additives to enhance the barrier properties of paper; Starch coatings - striking balance between the benefits and the drawbacks. In: : . Paper presented at Planet Friendly Packaging: FlexPakRenew Workshop 2011 10.5.2011, Lyon, France.
Open this publication in new window or tab >>Exploiting the synergies between starch, nanoclay and other additives to enhance the barrier properties of paper; Starch coatings - striking balance between the benefits and the drawbacks
2011 (English)Conference paper, Oral presentation with published abstract (Other academic)
National Category
Chemical Engineering Chemical Sciences
Identifiers
urn:nbn:se:kau:diva-38700 (URN)
Conference
Planet Friendly Packaging: FlexPakRenew Workshop 2011 10.5.2011, Lyon, France
Available from: 2015-11-24 Created: 2015-11-24 Last updated: 2015-11-27Bibliographically approved
Johansson, K., Christophliemk, H., Jönsson, L. & Järnström, L. (2010). Effect of Pigment Volume Concentration and Drying Aspects on the Enzyme Activity of Clay Coatings. In: : . Paper presented at The 11th TAPPI Advanced Coating Fundamentals Symposium, October 11-13.2010 Munich, Germany.
Open this publication in new window or tab >>Effect of Pigment Volume Concentration and Drying Aspects on the Enzyme Activity of Clay Coatings
2010 (English)Conference paper, Oral presentation only (Other academic)
National Category
Chemical Engineering Chemical Sciences
Identifiers
urn:nbn:se:kau:diva-38701 (URN)
Conference
The 11th TAPPI Advanced Coating Fundamentals Symposium, October 11-13.2010 Munich, Germany
Available from: 2015-11-24 Created: 2015-11-24 Last updated: 2015-11-27Bibliographically approved
Johansson, K., Christophliemk, H., Jönsson, L. & Järnström, L. (2010). Effect of pigment volume concentration and drying aspects on the enzyme activity of clay coatings. In: 11th Advanced Coating Fundamentals Symposium Proceedings, The Latest Advances in Coating Research and Development, 11.-13. October, Munich, Germany: . Paper presented at 11th TAPPI Advanced Coating Fundamentals Symposium. The Latest Advances in Coating Research and Development, 11.-13. October, Munich, Germany (pp. 129-143). TAPPI Press
Open this publication in new window or tab >>Effect of pigment volume concentration and drying aspects on the enzyme activity of clay coatings
2010 (English)In: 11th Advanced Coating Fundamentals Symposium Proceedings, The Latest Advances in Coating Research and Development, 11.-13. October, Munich, Germany, TAPPI Press, 2010, p. 129-143Conference paper, Published paper (Refereed)
Place, publisher, year, edition, pages
TAPPI Press, 2010
National Category
Engineering and Technology
Research subject
Chemical Engineering; Chemistry
Identifiers
urn:nbn:se:kau:diva-38692 (URN)
Conference
11th TAPPI Advanced Coating Fundamentals Symposium. The Latest Advances in Coating Research and Development, 11.-13. October, Munich, Germany
Available from: 2015-11-23 Created: 2015-11-23 Last updated: 2016-03-11Bibliographically approved
Christophliemk, H., Jokela, J., Christophliemk, M. & Kuokkanen, T. (2007). Study of Organic Coagulants and Flocculants in the Waste Water Treatment. In: : . Paper presented at Association of Finnish Chemical Societies; Chemical Days, Helsinki Finland, May 2007.
Open this publication in new window or tab >>Study of Organic Coagulants and Flocculants in the Waste Water Treatment
2007 (English)Conference paper, Poster (with or without abstract) (Other academic)
National Category
Physical Chemistry
Identifiers
urn:nbn:se:kau:diva-38702 (URN)
Conference
Association of Finnish Chemical Societies; Chemical Days, Helsinki Finland, May 2007
Available from: 2015-11-24 Created: 2015-11-24 Last updated: 2015-11-27Bibliographically approved
Organisations
Identifiers
ORCID iD: ORCID iD iconorcid.org/0000-0002-6832-0444

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