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Sliding friction of hierarchically micro–micro textured polymer surfaces on ice
https://orcid.org/0000-0002-0649-8140
Abstract The ice friction behavior of various microtextured polymer surfaces was studied with respect to ice temperature and applied load using a customized linear tribometer. Similar micropillar patterns were replicated on polypropylene and two rubber compounds, and when hierarchical micro–micro textures were present, all the materials exhibited superhydrophobicity. Taller protective micropillars were shown to be crucial for protecting the smaller microtextures from abrasive wear. The mechanical properties of the polymers affected the sliding friction of the microtextured surfaces on ice. High loading of hierarchical textures on rigid polypropylene or operation near the ice melting point tended to increase its adhesion tendency or resisting behavior. The sliding performance of the hard and soft rubber compounds was temperature-dependent, and the texture on the soft rubber influenced the sliding friction differently depending on the ice temperature. Consequently, textural modifications of the sliding surface enabled a certain degree of control over the sliding friction behavior on ice.
Graphical abstract Display Omitted
Highlights Rubber and PP surfaces were hierarchically micro-micro textured for friction studies. Material hardness affects ice sliding friction of microtextured surfaces. Sliding friction of textured soft rubber depends on the ice temperature. Hierarchical texture on hard polymers can induce sticky sliding on ice.
Sliding friction of hierarchically micro–micro textured polymer surfaces on ice
https://orcid.org/0000-0002-0649-8140
Abstract The ice friction behavior of various microtextured polymer surfaces was studied with respect to ice temperature and applied load using a customized linear tribometer. Similar micropillar patterns were replicated on polypropylene and two rubber compounds, and when hierarchical micro–micro textures were present, all the materials exhibited superhydrophobicity. Taller protective micropillars were shown to be crucial for protecting the smaller microtextures from abrasive wear. The mechanical properties of the polymers affected the sliding friction of the microtextured surfaces on ice. High loading of hierarchical textures on rigid polypropylene or operation near the ice melting point tended to increase its adhesion tendency or resisting behavior. The sliding performance of the hard and soft rubber compounds was temperature-dependent, and the texture on the soft rubber influenced the sliding friction differently depending on the ice temperature. Consequently, textural modifications of the sliding surface enabled a certain degree of control over the sliding friction behavior on ice.
Graphical abstract Display Omitted
Highlights Rubber and PP surfaces were hierarchically micro-micro textured for friction studies. Material hardness affects ice sliding friction of microtextured surfaces. Sliding friction of textured soft rubber depends on the ice temperature. Hierarchical texture on hard polymers can induce sticky sliding on ice.
Sliding friction of hierarchically micro–micro textured polymer surfaces on ice
https://orcid.org/0000-0002-0649-8140
Abstract The ice friction behavior of various microtextured polymer surfaces was studied with respect to ice temperature and applied load using a customized linear tribometer. Similar micropillar patterns were replicated on polypropylene and two rubber compounds, and when hierarchical micro–micro textures were present, all the materials exhibited superhydrophobicity. Taller protective micropillars were shown to be crucial for protecting the smaller microtextures from abrasive wear. The mechanical properties of the polymers affected the sliding friction of the microtextured surfaces on ice. High loading of hierarchical textures on rigid polypropylene or operation near the ice melting point tended to increase its adhesion tendency or resisting behavior. The sliding performance of the hard and soft rubber compounds was temperature-dependent, and the texture on the soft rubber influenced the sliding friction differently depending on the ice temperature. Consequently, textural modifications of the sliding surface enabled a certain degree of control over the sliding friction behavior on ice.
Graphical abstract Display Omitted
Highlights Rubber and PP surfaces were hierarchically micro-micro textured for friction studies. Material hardness affects ice sliding friction of microtextured surfaces. Sliding friction of textured soft rubber depends on the ice temperature. Hierarchical texture on hard polymers can induce sticky sliding on ice.
Sliding friction of hierarchically micro–micro textured polymer surfaces on ice
Mielonen, Kati (author) / Jiang, Yu (author) / Voyer, Joel (author) / Diem, Alexander (author) / Hillman, Leo (author) / Suvanto, Mika (author) / Pakkanen, Tapani A. (author)
Cold Regions, Science and Technology ; 163 ; 8-18
2019-04-09
11 pages
Article (Journal)
Electronic Resource
English
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