Constructing pristine and modified cellulose nanocrystals based cured polychloroprene nanocomposite films for dipped goods application
In this work, polychloroprene rubber (CR) nanocomposite films reinforced with native and modified cellulose nanocrystals (CNCs) were evaluated for dipped goods applications. The CNC modification, with a goal of enhancing the interaction between the CNC and CR, was conducted by surface graft polymeri...
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doaj-8d83469b91274e74a12f6d52e9240f7c2021-05-04T07:33:37ZengElsevierComposites Part C: Open Access2666-68202020-08-011100009Constructing pristine and modified cellulose nanocrystals based cured polychloroprene nanocomposite films for dipped goods applicationHormoz Eslami0Costas Tzoganakis1Tizazu H. Mekonnen2Department of Chemical Engineering, University of Waterloo, 200 University Avenue, E6 - 5010 N2L 3G1 Canada, Waterloo, ON, CanadaDepartment of Chemical Engineering, University of Waterloo, 200 University Avenue, E6 - 5010 N2L 3G1 Canada, Waterloo, ON, CanadaCorresponding author:; Department of Chemical Engineering, University of Waterloo, 200 University Avenue, E6 - 5010 N2L 3G1 Canada, Waterloo, ON, CanadaIn this work, polychloroprene rubber (CR) nanocomposite films reinforced with native and modified cellulose nanocrystals (CNCs) were evaluated for dipped goods applications. The CNC modification, with a goal of enhancing the interaction between the CNC and CR, was conducted by surface graft polymerization of lactic acid. The films were then prepared by latex blending, casting, and curing (with ZnO/MgO). TEM studies displayed that the CNCs formed a partially structured network while modified CNCs (mCNCs) tend to disperse mostly individually in the polychloroprene and show percolation at 3 wt%. Tensile tests of the films showed a substantial increase in the modulus, tensile strength, and tear resistance for both CNC, and mCNC reinforced films while the elongation at break remained above 600%. The films made with CNCs and mCNCs exhibited similar acetone vapor permeability at different loadings of the filler. However, their permeability towards water and 2-propanol vapor increased steadily with an increase in CNCs loading. In contrast, the mCNC-based films displayed steady permeability and a surge at 3 wt%, which could be attributed to percolation. Overall, the fabrication of CNC and mCNC reinforced CR films demonstrated appealing physical properties for a range of dipped goods applications.http://www.sciencedirect.com/science/article/pii/S2666682020300098Cellulose nanocrystalsDipped ProductsGlovesPolychloropreneCuring |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Hormoz Eslami Costas Tzoganakis Tizazu H. Mekonnen |
spellingShingle |
Hormoz Eslami Costas Tzoganakis Tizazu H. Mekonnen Constructing pristine and modified cellulose nanocrystals based cured polychloroprene nanocomposite films for dipped goods application Composites Part C: Open Access Cellulose nanocrystals Dipped Products Gloves Polychloroprene Curing |
author_facet |
Hormoz Eslami Costas Tzoganakis Tizazu H. Mekonnen |
author_sort |
Hormoz Eslami |
title |
Constructing pristine and modified cellulose nanocrystals based cured polychloroprene nanocomposite films for dipped goods application |
title_short |
Constructing pristine and modified cellulose nanocrystals based cured polychloroprene nanocomposite films for dipped goods application |
title_full |
Constructing pristine and modified cellulose nanocrystals based cured polychloroprene nanocomposite films for dipped goods application |
title_fullStr |
Constructing pristine and modified cellulose nanocrystals based cured polychloroprene nanocomposite films for dipped goods application |
title_full_unstemmed |
Constructing pristine and modified cellulose nanocrystals based cured polychloroprene nanocomposite films for dipped goods application |
title_sort |
constructing pristine and modified cellulose nanocrystals based cured polychloroprene nanocomposite films for dipped goods application |
publisher |
Elsevier |
series |
Composites Part C: Open Access |
issn |
2666-6820 |
publishDate |
2020-08-01 |
description |
In this work, polychloroprene rubber (CR) nanocomposite films reinforced with native and modified cellulose nanocrystals (CNCs) were evaluated for dipped goods applications. The CNC modification, with a goal of enhancing the interaction between the CNC and CR, was conducted by surface graft polymerization of lactic acid. The films were then prepared by latex blending, casting, and curing (with ZnO/MgO). TEM studies displayed that the CNCs formed a partially structured network while modified CNCs (mCNCs) tend to disperse mostly individually in the polychloroprene and show percolation at 3 wt%. Tensile tests of the films showed a substantial increase in the modulus, tensile strength, and tear resistance for both CNC, and mCNC reinforced films while the elongation at break remained above 600%. The films made with CNCs and mCNCs exhibited similar acetone vapor permeability at different loadings of the filler. However, their permeability towards water and 2-propanol vapor increased steadily with an increase in CNCs loading. In contrast, the mCNC-based films displayed steady permeability and a surge at 3 wt%, which could be attributed to percolation. Overall, the fabrication of CNC and mCNC reinforced CR films demonstrated appealing physical properties for a range of dipped goods applications. |
topic |
Cellulose nanocrystals Dipped Products Gloves Polychloroprene Curing |
url |
http://www.sciencedirect.com/science/article/pii/S2666682020300098 |
work_keys_str_mv |
AT hormozeslami constructingpristineandmodifiedcellulosenanocrystalsbasedcuredpolychloroprenenanocompositefilmsfordippedgoodsapplication AT costastzoganakis constructingpristineandmodifiedcellulosenanocrystalsbasedcuredpolychloroprenenanocompositefilmsfordippedgoodsapplication AT tizazuhmekonnen constructingpristineandmodifiedcellulosenanocrystalsbasedcuredpolychloroprenenanocompositefilmsfordippedgoodsapplication |
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