Harlin, Ali

Kangas, Heli

Lahtinen, Panu

Pere, Jaakko

Ropponen, Jarmo

Willberg-Keyriläinen, Pia

English

High-consistency enzymatic fibrillation (HefCel) technology offers a cost-efficient way to produce fibrillated cellulose materials at high consistency (20-40%). The process is simple, consisting only of few steps and can utilize existing industrial equipment. The fibrillation degree and thus the material properties can be controlled by the process conditions. The produced fibrillated cellulose material is at high consistency and easy to handle. The higher dry matter content makes off-site production and transportation more feasible compared to traditional CNFs. In addition, HefCel material is not gel-like, which enhances the water removal.Recent developments in HefCel technogy include processing of new raw materials, novel applications for the material as well as investment in new equipment at VTT to enable up-scaling of the technology. In this presentation, these developments will be outlined. The new raw materials tested include for example soda-ethanol pulps produced from Argentinian pine chips, processed in ERANET-LAC project “ValBio-3D: Valorization of residual biomass for advanced 3D materials”. Despite of some lignin remaining in the pulps, the enzymatic fibrillation succeeded, especially when the oxygen-delignified pulp was treated. HefCel material has shown potential in many applications, such as in barrier films, as strengthening additive in middle ply of board and in novel type of energy storages. One novel application utilizing the excellent oxygen, grease and gas barrier properties of cellulose nanomaterial films is an all-cellulosic packaging material from HefCel and fatty acid esters. It is a 3-layer barrier film structure consisting of two layers of thermoplastic cellulose with a HefCel film layer sandwiched in-between. Thermoplastic cellulose films act as moisture and water vapour barrier as well as enables heat sealing. The material is 100% renewable, compostable in industrial composters and processable with existing machinery. One important aspect of any new processing technology is its feasibility for up-scaling and commercial production. One step towards large-scale HefCel production will be taken later this year when a new mixer with a capacity of 70 l is installed at VTT. Operating the process at this scale will result in a more detailed information about the technical and economic feasibility of the technology

VTT Research System

This document is downloaded from theVTT’s Research Information Portalhttps://cris.vtt.fiVTThttp://www.vtt.fiP.O. box 1000FI-02044 VTTFinlandBy using VTT’s Research Information Portal you are bound by thefollowing Terms & Conditions.I have read and I understand the following statement:This document is protected by copyright and other intellectualproperty rights, and duplication or sale of all or part of any of thisdocument is not permitted, except duplication for research use oreducational purposes in electronic or print form. You must obtainpermission for any other use. Electronic or print copies may not beoffered for sale.VTT Technical Research Centre of FinlandNew developments in High consistency enzymatic fibrillation (HefCel)technology for production of cellulose micro/nanofibrilsKangas, Heli; Pere, Jaakko; Lahtinen, Panu; Willberg-Keyriläinen, Pia; Ropponen, Jarmo;Harlin, AliPublished: 26/09/2018Document VersionPublisher's final versionLink to publicationPlease cite the original version:Kangas, H., Pere, J., Lahtinen, P., Willberg-Keyriläinen, P., Ropponen, J., & Harlin, A. (2018). Newdevelopments in High consistency enzymatic fibrillation (HefCel) technology for production of cellulosemicro/nanofibrils. Poster session presented at Recent advances in cellulose nanotechnology research,Trondheim, Norway.Download date: 01. May. 2020Conclusions HefCel technology is a cost-effcient method to produce CMF/CNF at high consistency. HefCel technology is suitable for various rawmaterials, including soda-ethanol pulps from pinesawdust. Novel HefCel applications include a 3-layer barrierfilm, combination of HefCel CNF and thermoplasticcellulose. Up-scalability of HefCel production will be studiedlater this year when a new mixer is installed.HefCel technologyHigh-consistency enzymatic fibrillation (HefCel) technologyoffers a cost-efficient way to produce fibrillated cellulosematerials at high consistency (20-40%). The process is simple,consisting only of few steps and can utilize existing industrialequipment. The fibrillation degree and thus the materialproperties can be controlled by the process conditions. Theproduced fibrillated cellulose material is at high consistencyand easy to handle. The higher dry matter content makes off-site production and transportation more feasible compared totraditional CNFs. In addition, HefCel material is not gel-like,which enhances the water removal.Novel applicationsHefCel material has shown potential in many applications,such as in barrier films, as strengthening additive in middle plyof board and in novel type of energy storages. One novelapplication utilizing the excellent oxygen, grease and gasbarrier properties of cellulose nanomaterial films is an all-cellulosic packaging material from HefCel and fatty acidesters. It is a 3-layer barrier film structure consisting of twolayers of thermoplastic cellulose with a HefCel film layersandwiched in-between. Thermoplastic cellulose films act asmoisture and water vapour barrier as well as enables heatsealing. The material is 100% renewable, recyclable andprocessable with existing machinery (Figure 2).Figure 1. Pine sawdust raw material (on the left) and HefCel CMF produced frompine sawdust soda-ethanol O2 bleached pulps (on the right).Figure 2. Three-layer cellulose film consisting of thermoplastic cellulose and HefCel CNF.Recent developmentsRecent developments in HefCel technogy include processingof new raw materials, novel applications for the material aswell as investment in new equipment at VTT to enable up-scaling of the technology.New raw materialsThe new raw materials tested include for example soda-ethanol pulps produced from Argentinian pine chips,processed in ERANET-LAC project “ValBio-3D: Valorization ofresidual biomass for advanced 3D materials”. Despite of somelignin remaining in the pulps, the enzymatic fibrillationsucceeded, especially when the oxygen-delignified pulp wastreated (Figure 1).ContactHeli KangasTel. +358 400 357 233heli.kangas@vtt.fiVTT – beyond the obviouswww.vttresearch.comRecent developments in High consistency enzymatic fibrillation (HefCel) technology for production of cellulose micro/nanofibrilsHeli Kangas, Jaakko Pere, Panu Lahtinen, Pia Willberg-Keyriläinen, Jarmo Ropponen and Ali HarlinVTT Technical Research Centre of Finland LtdUp-scalingOne important aspect of any new processing technology is itsfeasibility for up-scaling and commercial production. One steptowards large-scale HefCel production will be taken later thisyear when a new mixer with a capacity of 70 l is installed atVTT. Operating the process at this scale will result in a moredetailed information about the technical and economicfeasibility of the technology.

New developments in High consistency enzymatic fibrillation (HefCel) technology for production of cellulose micro/nanofibrils

This document is downloaded from theVTT’s Research Information Portalhttps://cris.vtt.fiVTThttp://www.vtt.fiP.O. box 1000FI-02044 VTTFinlandBy using VTT’s Research Information Portal you are bound by thefollowing Terms & Conditions.I have read and I understand the following statement:This document is protected by copyright and other intellectualproperty rights, and duplication or sale of all or part of any of thisdocument is not permitted, except duplication for research use oreducational purposes in electronic or print form. You must obtainpermission for any other use. Electronic or print copies may not beoffered for sale.VTT Technical Research Centre of FinlandNew developments in High consistency enzymatic fibrillation (HefCel)technology for production of cellulose micro/nanofibrilsKangas, Heli; Pere, Jaakko; Lahtinen, Panu; Willberg-Keyriläinen, Pia; Ropponen, Jarmo;Harlin, AliPublished: 26/09/2018Document VersionPublisher's final versionLink to publicationPlease cite the original version:Kangas, H., Pere, J., Lahtinen, P., Willberg-Keyriläinen, P., Ropponen, J., & Harlin, A. (2018). Newdevelopments in High consistency enzymatic fibrillation (HefCel) technology for production of cellulosemicro/nanofibrils. Poster session presented at Recent advances in cellulose nanotechnology research,Trondheim, Norway.Download date: 28. Apr. 2020Conclusions HefCel technology is a cost-effcient method to produce CMF/CNF at high consistency. HefCel technology is suitable for various rawmaterials, including soda-ethanol pulps from pinesawdust. Novel HefCel applications include a 3-layer barrierfilm, combination of HefCel CNF and thermoplasticcellulose. Up-scalability of HefCel production will be studiedlater this year when a new mixer is installed.HefCel technologyHigh-consistency enzymatic fibrillation (HefCel) technologyoffers a cost-efficient way to produce fibrillated cellulosematerials at high consistency (20-40%). The process is simple,consisting only of few steps and can utilize existing industrialequipment. The fibrillation degree and thus the materialproperties can be controlled by the process conditions. Theproduced fibrillated cellulose material is at high consistencyand easy to handle. The higher dry matter content makes off-site production and transportation more feasible compared totraditional CNFs. In addition, HefCel material is not gel-like,which enhances the water removal.Novel applicationsHefCel material has shown potential in many applications,such as in barrier films, as strengthening additive in middle plyof board and in novel type of energy storages. One novelapplication utilizing the excellent oxygen, grease and gasbarrier properties of cellulose nanomaterial films is an all-cellulosic packaging material from HefCel and fatty acidesters. It is a 3-layer barrier film structure consisting of twolayers of thermoplastic cellulose with a HefCel film layersandwiched in-between. Thermoplastic cellulose films act asmoisture and water vapour barrier as well as enables heatsealing. The material is 100% renewable, recyclable andprocessable with existing machinery (Figure 2).Figure 1. Pine sawdust raw material (on the left) and HefCel CMF produced frompine sawdust soda-ethanol O2 bleached pulps (on the right).Figure 2. Three-layer cellulose film consisting of thermoplastic cellulose and HefCel CNF.Recent developmentsRecent developments in HefCel technogy include processingof new raw materials, novel applications for the material aswell as investment in new equipment at VTT to enable up-scaling of the technology.New raw materialsThe new raw materials tested include for example soda-ethanol pulps produced from Argentinian pine chips,processed in ERANET-LAC project “ValBio-3D: Valorization ofresidual biomass for advanced 3D materials”. Despite of somelignin remaining in the pulps, the enzymatic fibrillationsucceeded, especially when the oxygen-delignified pulp wastreated (Figure 1).ContactHeli KangasTel. +358 400 357 233heli.kangas@vtt.fiVTT – beyond the obviouswww.vttresearch.comRecent developments in High consistency enzymatic fibrillation (HefCel) technology for production of cellulose micro/nanofibrilsHeli Kangas, Jaakko Pere, Panu Lahtinen, Pia Willberg-Keyriläinen, Jarmo Ropponen and Ali HarlinVTT Technical Research Centre of Finland LtdUp-scalingOne important aspect of any new processing technology is itsfeasibility for up-scaling and commercial production. One steptowards large-scale HefCel production will be taken later thisyear when a new mixer with a capacity of 70 l is installed atVTT. Operating the process at this scale will result in a moredetailed information about the technical and economicfeasibility of the technology.

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New developments in High consistency enzymatic fibrillation (HefCel) technology for production of cellulose micro/nanofibrils

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