Superhydrophobic and Oleophobic UV-Curable Surface Engineering of Cellulose-Based Substrates
Cellulose-based materials are one of the most widely used materials provided by nature to mankind. In particular, cotton fibers have been used for millennia to produce clothing items. This wide usage stems from the inherent properties of cotton fabrics such as hydrophilicity and permeability to water vapor. However, increasingly sophisticated uses for cotton-based clothing (e.g., technical textiles) demand specific properties such as hydrophobicity and oleophobicity for repellent functions. The current surface treatments used to attain these functionalities are based on thermally initiated polymerization reactions, using water-based formulations. Thus, the current technologies are energy- and water-intensive. The advantages of using alternative polymerization routes based on actinic radiation are thus clear and include lower energy consumptions, increased processing speeds and smaller plant space. However, example current drawbacks include issues related to the loss of substrate flexibility, breathability and hand. In order to overcome these issues, a durable surface treatment has been developed based on UV-curable polymeric materials that provide superhydrophobic and oleophobic properties to cotton substrates, maintaining intrinsic useful properties of cotton fabrics such as pleasant hand. In this article are reported the innovative surface treatment formulations and procedures developed.
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Document Type: Research Article
Publication date: 2016-02-01
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- The Journal of Renewable Materials (JRM) publishes high quality peer reviewed original research on macromolecules and additives obtained from renewable/biobased resources. Utilizing a multidisciplinary approach, JRM introduces cutting-edge research on biobased monomers, polymers, additives (both organic and inorganic), their blends and composites. It showcases both fundamental aspects and new applications for renewable materials. The fundamental theories and topics pertain to chemistry of biobased monomers, macromoners and polymers, their structure-property relationship, processing using sustainable methods, characterization (spectroscopic, morphological, thermal, mechanical, and rheological), bio and environmental degradation, and life cycle analysis. Demonstration of use of renewable materials and composites in applications including adhesives, bio and environmentally degradable structures, biomedicine, construction, electrical & electronics, mechanical, mendable and self-healing systems, optics, packaging, recycling, shape-memory, and stimulus responsive systems will be presented.
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