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Full-Text Articles in Polymer and Organic Materials
Drop Wetting And Sliding On Soft, Swollen Elastomers, Zhuoyun Cai
Drop Wetting And Sliding On Soft, Swollen Elastomers, Zhuoyun Cai
Theses and Dissertations--Chemical and Materials Engineering
Soft, slippery surfaces have gained increasing attention due to their wide range of potential applications, for example in self-cleaning, anti-fouling, liquid collection, and more. One design approach in creating slippery surfaces is using a swollen elastomer, which is a polymer network swollen with a lubricant. This type of surface may be beneficial for longer-term use than standard lubricant-infused surfaces, and provides a versatile surface with tunable mechanical properties. Hence, understanding the physics of soft surface interactions is important for fundamental soft matter physics, biomaterials, adhesives, and coatings. This research experimentally investigates wetting on soft infused networks, with the aim of …
Microscale Contact And Friction Of Low Modulus, Lightly Crosslinked Polydimethylsiloxane, Justin Glover
Microscale Contact And Friction Of Low Modulus, Lightly Crosslinked Polydimethylsiloxane, Justin Glover
Theses and Dissertations--Chemical and Materials Engineering
Friction and adhesion of soft materials are important for pressure sensitive adhesives, biomaterials, and soft robotics; however, the behavior on the microscale is not fully understood. When two objects come into contact, their interactions are usually mediated by small contact points due to surface roughness. At the microscale size, surface forces can deform soft materials to minimize energy by increasing the contact area, which is balanced by the elastic deformation of the polymer network. However, for soft, crosslinked materials with a modulus below ~100 kPa, it is challenging to predict the behavior with prior contact and friction models. Additionally, lightly …