Smooth and flexible filler-nanocellulose composite structure for printed electronics applications

Katariina Torvinen (Corresponding Author), Jenni Sievänen (Corresponding Author), Tuomo Hjelt, Erkki Hellen

Research output: Contribution to journalArticleScientificpeer-review

46 Citations (Scopus)

Abstract

A new type of micro/nanocomposite was made by using only micro fibrillated cellulose and inorganic fillers. This composite structure can contain up to 90% fillers being still mechanically stable and flexible. Calendering can be used to produce dense structures with extremely smooth surface. To study the effect of filler shape and type, both kaolin and precipitated calcium carbonate (PCC) based sheets were examined. Microscopy (cross-sectional and surface SEM images) and mechanical and morphological properties, including strength properties, surface roughness and dimensional stability as a function of moisture were analysed. After calendering the surface of the PCC containing sheets was smoother than that of photopaper and in the same level as reference plastic film Mylar A. The dimensional stability of the sheets was clearly better than that of paper sheets. The combination of a good dimensional stability with low surface roughness makes these structures potential for printed electronics applications, in which they could replace oil-based plastic substrates. Suitability for printed electronic applications was tested by inkjet printing conductors with silver nanoparticle ink. The sheet resistances of conductors printed on kaolin based sheets were close to those printed on plastic Mylar A film.
Original languageEnglish
Pages (from-to)821-829
Number of pages8
JournalCellulose
Volume19
Issue number3
DOIs
Publication statusPublished - 2012
MoE publication typeA1 Journal article-refereed

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Dimensional stability
Composite structures
Calendering
Kaolin
Fillers
Electronic equipment
Calcium Carbonate
Calcium carbonate
Surface roughness
Plastics
Plastic films
Sheet resistance
Silver
Ink
Cellulose
Printing
Nanocomposites
Microscopic examination
Oils
Moisture

Keywords

  • Inorganic filler composite structure
  • micro fibrillated cellulose
  • printed electronics

Cite this

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title = "Smooth and flexible filler-nanocellulose composite structure for printed electronics applications",
abstract = "A new type of micro/nanocomposite was made by using only micro fibrillated cellulose and inorganic fillers. This composite structure can contain up to 90{\%} fillers being still mechanically stable and flexible. Calendering can be used to produce dense structures with extremely smooth surface. To study the effect of filler shape and type, both kaolin and precipitated calcium carbonate (PCC) based sheets were examined. Microscopy (cross-sectional and surface SEM images) and mechanical and morphological properties, including strength properties, surface roughness and dimensional stability as a function of moisture were analysed. After calendering the surface of the PCC containing sheets was smoother than that of photopaper and in the same level as reference plastic film Mylar A. The dimensional stability of the sheets was clearly better than that of paper sheets. The combination of a good dimensional stability with low surface roughness makes these structures potential for printed electronics applications, in which they could replace oil-based plastic substrates. Suitability for printed electronic applications was tested by inkjet printing conductors with silver nanoparticle ink. The sheet resistances of conductors printed on kaolin based sheets were close to those printed on plastic Mylar A film.",
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Smooth and flexible filler-nanocellulose composite structure for printed electronics applications. / Torvinen, Katariina (Corresponding Author); Sievänen, Jenni (Corresponding Author); Hjelt, Tuomo; Hellen, Erkki.

In: Cellulose, Vol. 19, No. 3, 2012, p. 821-829.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Smooth and flexible filler-nanocellulose composite structure for printed electronics applications

AU - Torvinen, Katariina

AU - Sievänen, Jenni

AU - Hjelt, Tuomo

AU - Hellen, Erkki

PY - 2012

Y1 - 2012

N2 - A new type of micro/nanocomposite was made by using only micro fibrillated cellulose and inorganic fillers. This composite structure can contain up to 90% fillers being still mechanically stable and flexible. Calendering can be used to produce dense structures with extremely smooth surface. To study the effect of filler shape and type, both kaolin and precipitated calcium carbonate (PCC) based sheets were examined. Microscopy (cross-sectional and surface SEM images) and mechanical and morphological properties, including strength properties, surface roughness and dimensional stability as a function of moisture were analysed. After calendering the surface of the PCC containing sheets was smoother than that of photopaper and in the same level as reference plastic film Mylar A. The dimensional stability of the sheets was clearly better than that of paper sheets. The combination of a good dimensional stability with low surface roughness makes these structures potential for printed electronics applications, in which they could replace oil-based plastic substrates. Suitability for printed electronic applications was tested by inkjet printing conductors with silver nanoparticle ink. The sheet resistances of conductors printed on kaolin based sheets were close to those printed on plastic Mylar A film.

AB - A new type of micro/nanocomposite was made by using only micro fibrillated cellulose and inorganic fillers. This composite structure can contain up to 90% fillers being still mechanically stable and flexible. Calendering can be used to produce dense structures with extremely smooth surface. To study the effect of filler shape and type, both kaolin and precipitated calcium carbonate (PCC) based sheets were examined. Microscopy (cross-sectional and surface SEM images) and mechanical and morphological properties, including strength properties, surface roughness and dimensional stability as a function of moisture were analysed. After calendering the surface of the PCC containing sheets was smoother than that of photopaper and in the same level as reference plastic film Mylar A. The dimensional stability of the sheets was clearly better than that of paper sheets. The combination of a good dimensional stability with low surface roughness makes these structures potential for printed electronics applications, in which they could replace oil-based plastic substrates. Suitability for printed electronic applications was tested by inkjet printing conductors with silver nanoparticle ink. The sheet resistances of conductors printed on kaolin based sheets were close to those printed on plastic Mylar A film.

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KW - micro fibrillated cellulose

KW - printed electronics

U2 - 10.1007/s10570-012-9677-5

DO - 10.1007/s10570-012-9677-5

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JO - Cellulose

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