Highly stretchable and nonvolatile gelatin-supported deep eutectic solvent gel electrolyte-based ionic skins for strain and pressure sensing

2019 ◽  
Vol 7 (3) ◽  
pp. 601-608 ◽  
Author(s):  
Huan Qin ◽  
Rachel E. Owyeung ◽  
Sameer R. Sonkusale ◽  
Matthew J. Panzer
Keyword(s):  
Mechanical Properties ◽  
Deep Eutectic Solvent ◽  
Soft Materials ◽  
Gel Electrolyte ◽  
Pressure Sensing ◽  
Highly Stretchable

Gelatin biopolymer-supported deep eutectic solvent gels offer greatly enhanced mechanical properties and nonvolatility compared to their hydrogel analogues for devices that utilize ionically conducting soft materials.

scholarly journals Development of a 3D Printable and Highly Stretchable Ternary Organic-Inorganic Nanocomposite Hydrogel

2021 ◽  
Author(s):  
Chen Hu ◽  
Malik Haider ◽  
Lukas Hahn ◽  
Mengshi Yang ◽  
Robert Luxenhofer
Keyword(s):  
Mechanical Properties ◽  
Additive Manufacturing ◽  
Nanocomposite Hydrogel ◽  
Highly Stretchable ◽  
Manufacturing Techniques ◽  
Advanced Applications

Hydrogels that can be processed with additive manufacturing techniques and concomitantly possess favorable mechanical properties are interesting for many advanced applications. However, the development of novel ink materials with high...

Effect of methacrylic acid and pendant vinyl groups on the mechanical properties of highly stretchable core–shell nanostructured films deposited from water

2021 ◽  
Author(s):  
James Turton ◽  
Stephen Worrall ◽  
Muhamad S. Musa ◽  
Amir H. Milani ◽  
Yichao Yao ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Methacrylic Acid ◽  
Core Shell ◽  
Nanostructured Films ◽  
Highly Stretchable

The mechanical properties of these highly stretchable, water deposited elastomers can be tuned by varying MAA content and vinyl functionalisation.

scholarly journals Mechanical properties of magnetic gels containing rod-like composite particles

2019 ◽  
Vol 377 (2143) ◽  
pp. 20180218 ◽  
Author(s):  
Mariem M. Abrougui ◽  
Modesto T. Lopez-Lopez ◽  
Juan D. G. Duran
Keyword(s):  
Mechanical Properties ◽  
Magnetic Particles ◽  
Three Dimensional ◽  
Heterogeneous Systems ◽  
Soft Materials ◽  
Polymer Chains ◽  
Composite Particles ◽  
Magnetite Particles ◽  
Magneto Rheological ◽  
Mr Effect

Magnetic gels (ferrogels) are heterogeneous systems structured at the nanoscale that contains magnetic particles dispersed in three-dimensional networks of polymer chains. In the present work, the magnetic particles were synthesized with a core–shell structure, consisting of sepiolite particles covered by magnetite nanoparticles. These composite particles had a rod-like shape with a high aspect ratio. The obtained sepiolite–magnetite particles showed a high enough susceptibility and saturation magnetization. The magneto-rheological (MR) properties, and the intensity of the MR effect, of aqueous suspensions of the synthesized particles were studied. The particles, functionalized by adsorption of alginate molecules, were imbedded in alginate hydrogels to get homogeneous soft materials. The particles were linked to the polymer chains as the knots in a network and dominated in a great extent the mechanical properties of the materials. After determining the optimal compositions of the ferrogels, their viscoelastic properties were measured in the absence/presence of magnetic fields. The results pointed out that the MR effect provided by the clay–magnetite particles was considerably more intense than those achieved in ferrogels that contain spherical magnetic microparticles. Therefore, the imbedding of rod-shaped magnetic particles in hydrogels allows controlling the mechanical properties in a wider range than in conventional ferrogels. This article is part of the theme issue ‘Heterogeneous materials: metastable and non-ergodic internal structures’.

Plastic packaging materials of laminated composites made of polymer cover sheets and a nonwoven interlayer

2018 ◽  
Vol 22 (7) ◽  
pp. 2287-2301
Author(s):  
Mei-Chen Lin ◽  
Jia-Horng Lin ◽  
Jan-Yi Lin ◽  
Ting An Lin ◽  
Ching-Wen Lou
Keyword(s):  
Mechanical Properties ◽  
Laminated Composites ◽  
Thermoplastic Polyurethane ◽  
Soft Materials ◽  
Packaging Materials ◽  
Light Weight ◽  
Plastic Packaging ◽  
Crystal Stability ◽  
High Toughness ◽  
Sheet Extrusion

This study aims to improve the mechanical properties, stabilized structures, and light weight plastic packaging materials to realize diverse applications. A sheet extrusion machine is used to fabricate sandwich-structured composites, which are composed of two polymer cover sheets and a nonwoven interlayer. The samples are prepared in two batches with different cover sheets: thermoplastic polyurethane and polypropylene. Moreover, low-melting-point polyester (LMPET) fibers and Kevlar fibers are fabricated into a LMPET/Kevlar nonwoven interlayer. The laminated composites are evaluated in terms of morphologies, mechanical properties, combustion rates, and thermal behavior. Kevlar fibers are flame resistant and mechanically strong. LMPET fibers promote the interfacial bonding between layers. Thus, the laminated composites are good candidates as packaging materials, and they can be made with rigid or soft materials, depending on specified requirements. Rigid materials can provide higher strengths, and the distribution of fibers thus helps the PP-based laminated composites to obtain higher crystal stability. Moreover, using TPU with flexibility contributes to high extensibility, which grants the laminated composites with high toughness, light weight, and low restriction against the morphology. Such manufacturing is also efficient and economical, thereby satisfying the requirements of plastic packaging materials.

scholarly journals Image-based analysis of uniaxial ring test for mechanical characterization of soft materials and biological tissues

Soft Matter ◽  
2019 ◽  
Vol 15 (16) ◽  
pp. 3353-3361 ◽  
Author(s):  
Eline E. van Haaften ◽  
Mark C. van Turnhout ◽  
Nicholas A. Kurniawan
Keyword(s):  
Mechanical Properties ◽  
Mechanical Characterization ◽  
Soft Materials ◽  
Biological Tissues ◽  
Ring Test ◽  
Analysis Approach

We propose a simple image-based analysis approach to accurately estimate the mechanical properties of ring-shaped materials.

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