Enhanced elasticity in magnesium nanoparticle reinforced acrylic elastomer

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Abstract Elastomers are highly potential materials for shock absorption, cushioning, and similar applications. However, for most elastomers, poor strength limits their application. Compounding nanoparticles in the polymer matrix have been vastly explored to improve mechanical strength or introduce electrical, thermal, optical, and magnetic properties to the polymer. However, poor dispersion of nanoparticles in polymer mixture has remained a challenge in nanocomposite production. This study presents a unique approach to improving particle dispersion as well as designing ultra‐soft, light, cost‐effective, and highly compressible nanocomposite elastomers. To this end, magnesium nanoparticles were fabricated by pulsed laser ablation in a non‐ionic surfactant (Triton X‐100) and the mixture was added to an acrylic base polymer chain to design the nanocomposite elastomer. Various nanocomposites were manufactured using different ratios of surfactant and nanoparticle mixtures. The mechanical and optical properties of the composites were investigated. The nanocomposite containing the largest amount of Triton X‐100 and magnesium nanoparticles displayed beyond 50% compressive deformation under only 0.4 MPa load and light absorbance was enhanced in the UV–visible region of the spectra. Highlights Pure Mg nanoparticles were successfully synthesized by PLAL in undiluted Triton X‐100. Nanocomposites displayed very high deformation capacity under small loading. Nanoparticles dispersed in surfactant led to a uniform particle distribution. Absorbance enhanced by surfactant and Mg nanoparticle in UV–visible region. Elasticity modulus tailored up to 60% by surfactant and nanoparticle addition.

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