Abstract
In the field of food packaging, the addition of exfoliated layered silicates in polymers has been established to improve the polymers’ gas barrier properties. Using these polymers as coatings to protect smart textiles from oxidation and corrosion while maintaining their textile properties should significantly extend their lifetime and promote their market penetration. The aim of this study was to print new polymer dispersions containing layered silicates to protect screen-printed conductive structures, and to test the resulting samples. For this, appropriate printing parameters were determined by statistical design of experiments. According to these results, conductive structures were printed and protected with the selected coating. The abrasion resistance and the continuity of the protective layer of the printed samples were then measured. A continuous protective coating of approximately 70–80 µm thickness was applied on a conductive structure. The printed samples showed a very high resistance to abrasion (unchanged by 85,000 abrasion cycles) while remaining flexible and presenting a lower water vapor permeability (<2.5 g/m² d) than the coatings commonly used in the textile field.
Highlights
The global smart textiles market is expected to grow by 30.4% between 2019 and 2025, reaching a value of $5.55 billion in 2025 [1]
This study focuses on using polymeric systems which coating have not been smart textiles with a barrier effect against water vapor
We developed several established as textile coatings to print and test a new thin and flexible coating for printed polymeric systems diffusion-inhibiting polyurethane mixed with laysmart textiles with with a barrier effect against water vapor
Summary
The global smart textiles market is expected to grow by 30.4% between 2019 and 2025, reaching a value of $5.55 billion in 2025 [1]. Developments are moving in the direction of innovative, intelligent technical textiles and garments that combine sensory, actuator and electronic functions [2,3,4,5]. In most of these application fields, like in the automotive sector, high durability requirements have to be met by the smart textiles [6]. Screen-printing technology has been well established in the fields of electronics and textiles [7,8]. That is why the production of textile-based sensors regularly makes use of this technology [4,9,10,11,12]. A high degree of both automation and electronic integration is possible for the economic and variable production of smart textiles
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