Tunable viscoelastic and vibration damping properties of a segmented polyurethane synergistically reinforced with carbon black and anisotropic additives

Praveen, S.; Bahadur, Jitendra; Yadav, Rahul; Billa, Srikanth; Patro, T. Umasankar; Rath, Sangram K.; Ratna, Debdatta; Patri, M.

doi:10.1016/j.apacoust.2020.107535

Cited by 24 publications

(18 citation statements)

References 38 publications

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“…Finally, to demonstrate the potential applications of the composite elastomer, the vibration-damping property was evaluated (Figure ). The vibration-damping performance is said to be the effect of friction between the filler and the matrix polymer, which dissipates the deformation energy as thermal energy. − In the composite elastomer filled with silica particles at intervals of a few nanometers, thermal energy dissipation due to shear strain among the particles and friction at the particle–polymer interface is expected. Therefore, an unconstrained composite beam was fabricated by attaching a composite elastomer to a steel beam (Figure a), and the loss factor obtained from the frequency response function when the center of this specimen was vibrated was compared .…”

Section: Results and Discussionmentioning

confidence: 99%

Silica Nanoparticle Reinforced Composites as Transparent Elastomeric Damping Materials

Asai

Seki

Hoshino

et al. 2021

ACS Appl. Nano Mater.

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Inspired by the structure of the cornea, which is the transparent front part of the eye, we developed a transparent and tough silica composite elastomer consisting of poly[di(ethylene glycol)methyl ether methacrylate] (PMEO 2 MA) and 110 nm spherical silica particles without using an organic cross-linking agent. While filler composite elastomers, such as reinforced rubbers, have complex compositions containing multiple additives (dispersants, plasticizers, vulcanizing agents, etc.), the composition of our composite elastomer is very simple. With an increased amount of silica particles, the fracture energy of the composite elastomer (20.2 MJ m −3 ) was improved by 25 times compared to that of unfilled PMEO 2 MA (0.8 MJ m −3 ). Nanoscale mapping using atomic force microscopy elucidated the presence of an interface layer (IL) of approximately 15 nm thickness with a high elastic modulus near the silica particles in the composite elastomer. The fracture energy of the composite elastomer was found to be a maximum when the particle surface distance was approximately 30 nm. This particle surface distance meant that the ILs were just in contact with each other. The surface charge density and Hansen solubility parameter of the silica particles indicated the ionization of silanol groups and interactions caused by hydrogen bonding between polymer chains and the silica surface. The array of silica particles embedded with intervals of a few nanometers was expected to be able to effectively dissipate deformation energy as heat due to shear strain and friction between the particle surface and polymer matrices. Measurements of the vibration-damping properties revealed that the loss factor of the composite elastomer was significantly higher than that of the unfilled elastomer, indicating that the composite elastomer in this study could be applied as an interlayer film for laminated glass in automotive and architectural applications.

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Section: Results and Discussionmentioning

confidence: 99%

Silica Nanoparticle Reinforced Composites as Transparent Elastomeric Damping Materials

Asai

Seki

Hoshino

et al. 2021

ACS Appl. Nano Mater.

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“…Besides, PUE can serve as excellent matrix materials by incorporating fillers of different sizes and shapes such as carbon nanotubes, 10 microcrystalline cellulose, 11,12 or nano silica. 13 The derived PUE composites often have improved properties, which are used in the applications of rail transit, 14 vibration reduction/sound insulation, 15 and construction.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and research of basalt microfiber‐reinforced polyurethane elastomer composites

Wang

et al. 2022

J of Applied Polymer Sci

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Basalt microfiber‐reinforced polyurethane elastomer composites (BMF/PUE) were prepared by semi‐prepolymer method in this study. The degree of microphase separation and quantitative analysis of H‐bonding formation in polyurethane were determined by infrared spectroscopy. The fiber surface and the morphology at the tensile fracture interface of the composite materials were observed by scanning electron microscopy. The mechanical properties of composite materials were further measured on an electronic universal testing machine. Dynamic thermomechanical analysis and acoustic impedance tube were used to study the damping and acoustic properties of composite materials, respectively. The results indicated that the composite material prepared by adding 6 g of basalt microfibers treated with 3 min' crushing had the best overall performance. Compared with the matrix, BMF/PUE showed good sound insulation performance with a much wider effective damping temperature range. On the basis of ensuring its excellent overall performance, the mechanical properties were increased by 50.4% in tensile strength, 28.1% in elongation at break, and 14.2% in tear strength.

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“…4(a), the G 0 shows a significant decrease with increasing g 0 , which is consistent with the Payne effect in experiments. 47 Meanwhile, the decreased degree is improved with increasing a H . From Fig.…”

Section: Morphology Of the Soft-hard Block Pumentioning

confidence: 96%

Effect of the content and strength of hard segment on the viscoelasticity of the polyurethane elastomer: insights from molecular dynamics simulation

Wang

et al. 2022

Soft Matter

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Tunable viscoelastic and vibration damping properties of a segmented polyurethane synergistically reinforced with carbon black and anisotropic additives

Cited by 24 publications

References 38 publications

Silica Nanoparticle Reinforced Composites as Transparent Elastomeric Damping Materials

Silica Nanoparticle Reinforced Composites as Transparent Elastomeric Damping Materials

Synthesis and research of basalt microfiber‐reinforced polyurethane elastomer composites

Effect of the content and strength of hard segment on the viscoelasticity of the polyurethane elastomer: insights from molecular dynamics simulation

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