Manufacture of all-cellulose film from paper by using ionic liquids

Research output: Contribution to conferenceConference PosterScientific

Abstract

Paper material consists of fibres bound primarily with hydrogen bonds. Thus water can disrupt those bonds, making paper to be non-water-resistant, if no any wet strength agent is used. In this study, we investigated the "chemical welding" of kraft-pulp-paper with the ionic liquid, 1-ethyl-3-methylimidazolium acetate ([EMIM]OAc). The process was in two steps. Firstly, ionic liquid was transported into the paper structure. In the second phase, the dissolution and subsequent embedding of the fibre surfaces were achieved by the heat activation (80–95ºC). The IL treated paper was purified with water from IL and dried under compression. Precipitation of the dissolved cellulose resulted in a fusion of the fibres of paper into a solid, uniform material, whose properties are similar to thermoset plastics. Such obtained "chemically welded" paper structure elevated both dry and wet strength. The treatment conditions can be adjusted (i.e. dosage of ionic liquid, activation temperature, time) to produce both paper-like materials and films. The most severe treatment conditions produce films, which are fully transparent and whose oxygen and grease barrier properties are excellent. This study demonstrates conversion of ordinary paper into novel materials. As an all-cellulose material, the "chemically welded" paper is fully biodegradable and is a potential alternative to fossil fuel-based plastics.
Original languageEnglish
Pages23-23
Number of pages1
Publication statusPublished - 2018
MoE publication typeNot Eligible
EventThe 8th Workshop on Cellulose - Karlstad University, Karlstad, Sweden
Duration: 13 Nov 201814 Nov 2018
Conference number: 8
http://www.celluloseworkshop.com/

Workshop

WorkshopThe 8th Workshop on Cellulose
CountrySweden
CityKarlstad
Period13/11/1814/11/18
Internet address

Fingerprint

Cellulose films
Ionic Liquids
Cellulose
Fibers
Chemical activation
Plastics
Water
Kraft pulp
Thermosets
Lubricating greases
Fossil fuels
Materials properties
Hydrogen bonds
Dissolution
Welding
Fusion reactions
Oxygen
Temperature

Keywords

  • Cellulose
  • Partial dissolution
  • Paper
  • Ionic liquids
  • All-cellulose composite

Cite this

Tanaka, A., Khakalo, A., Hauru, L., Korpela, A., & Orelma, H. (2018). Manufacture of all-cellulose film from paper by using ionic liquids. 23-23. Poster session presented at The 8th Workshop on Cellulose , Karlstad, Sweden.
Tanaka, Atsushi ; Khakalo, Alexey ; Hauru, Lauri ; Korpela, Antti ; Orelma, Hannes. / Manufacture of all-cellulose film from paper by using ionic liquids. Poster session presented at The 8th Workshop on Cellulose , Karlstad, Sweden.1 p.
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title = "Manufacture of all-cellulose film from paper by using ionic liquids",
abstract = "Paper material consists of fibres bound primarily with hydrogen bonds. Thus water can disrupt those bonds, making paper to be non-water-resistant, if no any wet strength agent is used. In this study, we investigated the {"}chemical welding{"} of kraft-pulp-paper with the ionic liquid, 1-ethyl-3-methylimidazolium acetate ([EMIM]OAc). The process was in two steps. Firstly, ionic liquid was transported into the paper structure. In the second phase, the dissolution and subsequent embedding of the fibre surfaces were achieved by the heat activation (80–95ºC). The IL treated paper was purified with water from IL and dried under compression. Precipitation of the dissolved cellulose resulted in a fusion of the fibres of paper into a solid, uniform material, whose properties are similar to thermoset plastics. Such obtained {"}chemically welded{"} paper structure elevated both dry and wet strength. The treatment conditions can be adjusted (i.e. dosage of ionic liquid, activation temperature, time) to produce both paper-like materials and films. The most severe treatment conditions produce films, which are fully transparent and whose oxygen and grease barrier properties are excellent. This study demonstrates conversion of ordinary paper into novel materials. As an all-cellulose material, the {"}chemically welded{"} paper is fully biodegradable and is a potential alternative to fossil fuel-based plastics.",
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Tanaka, A, Khakalo, A, Hauru, L, Korpela, A & Orelma, H 2018, 'Manufacture of all-cellulose film from paper by using ionic liquids' The 8th Workshop on Cellulose , Karlstad, Sweden, 13/11/18 - 14/11/18, pp. 23-23.

Manufacture of all-cellulose film from paper by using ionic liquids. / Tanaka, Atsushi; Khakalo, Alexey; Hauru, Lauri; Korpela, Antti; Orelma, Hannes.

2018. 23-23 Poster session presented at The 8th Workshop on Cellulose , Karlstad, Sweden.

Research output: Contribution to conferenceConference PosterScientific

TY - CONF

T1 - Manufacture of all-cellulose film from paper by using ionic liquids

AU - Tanaka, Atsushi

AU - Khakalo, Alexey

AU - Hauru, Lauri

AU - Korpela, Antti

AU - Orelma, Hannes

PY - 2018

Y1 - 2018

N2 - Paper material consists of fibres bound primarily with hydrogen bonds. Thus water can disrupt those bonds, making paper to be non-water-resistant, if no any wet strength agent is used. In this study, we investigated the "chemical welding" of kraft-pulp-paper with the ionic liquid, 1-ethyl-3-methylimidazolium acetate ([EMIM]OAc). The process was in two steps. Firstly, ionic liquid was transported into the paper structure. In the second phase, the dissolution and subsequent embedding of the fibre surfaces were achieved by the heat activation (80–95ºC). The IL treated paper was purified with water from IL and dried under compression. Precipitation of the dissolved cellulose resulted in a fusion of the fibres of paper into a solid, uniform material, whose properties are similar to thermoset plastics. Such obtained "chemically welded" paper structure elevated both dry and wet strength. The treatment conditions can be adjusted (i.e. dosage of ionic liquid, activation temperature, time) to produce both paper-like materials and films. The most severe treatment conditions produce films, which are fully transparent and whose oxygen and grease barrier properties are excellent. This study demonstrates conversion of ordinary paper into novel materials. As an all-cellulose material, the "chemically welded" paper is fully biodegradable and is a potential alternative to fossil fuel-based plastics.

AB - Paper material consists of fibres bound primarily with hydrogen bonds. Thus water can disrupt those bonds, making paper to be non-water-resistant, if no any wet strength agent is used. In this study, we investigated the "chemical welding" of kraft-pulp-paper with the ionic liquid, 1-ethyl-3-methylimidazolium acetate ([EMIM]OAc). The process was in two steps. Firstly, ionic liquid was transported into the paper structure. In the second phase, the dissolution and subsequent embedding of the fibre surfaces were achieved by the heat activation (80–95ºC). The IL treated paper was purified with water from IL and dried under compression. Precipitation of the dissolved cellulose resulted in a fusion of the fibres of paper into a solid, uniform material, whose properties are similar to thermoset plastics. Such obtained "chemically welded" paper structure elevated both dry and wet strength. The treatment conditions can be adjusted (i.e. dosage of ionic liquid, activation temperature, time) to produce both paper-like materials and films. The most severe treatment conditions produce films, which are fully transparent and whose oxygen and grease barrier properties are excellent. This study demonstrates conversion of ordinary paper into novel materials. As an all-cellulose material, the "chemically welded" paper is fully biodegradable and is a potential alternative to fossil fuel-based plastics.

KW - Cellulose

KW - Partial dissolution

KW - Paper

KW - Ionic liquids

KW - All-cellulose composite

M3 - Conference Poster

SP - 23

EP - 23

ER -

Tanaka A, Khakalo A, Hauru L, Korpela A, Orelma H. Manufacture of all-cellulose film from paper by using ionic liquids. 2018. Poster session presented at The 8th Workshop on Cellulose , Karlstad, Sweden.