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Taking Hold: Adhesives Tackle Multiple Materials

Posted By ASC, Wednesday, August 26, 2015

Many materials, including complex composites, are appearing in aerospace, automotive assemblies, consumer electronics and medical devices. Fastening these materials together is a major challenge, but adhesives are proving an attractive option for a broad range of applications. Adhesives offer opportunities for lightweighting, absorbing or evenly distributing stress, joining dissimilar materials and assembling smaller components. In medical applications, there is increasing demand for adhesives to bond silicone components and for adhesives that are safe for skin. In aerospace and electronics, optically clear adhesives are needed, as well as adhesives capable of bonding low surface energy (LSE) substrates, such as molded silicones, ultra-high molecular weight films, carbon composites and plastics. In addition to complex materials, in particular plastics, mechanical fasteners may not be an option. Kent Larson, application scientist for Dow Corning Electronics Solutions, highlighted the importance of adhesives in modern assembly, saying: “In particular, wearable electronics showcase the need for designs with advanced functions combined with evolving user expectations of pleasing aesthetics, reliability, and safety for skin contact. These requirements mandate multilayer surfaces that can only be constructed with adhesives.”

 

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