Nonlinear modeling on stiffness properties of diatomite-incorporated BFRPs with experimental strength and toughness evaluations

Yu, Tianyu; Chen, Zixuan; Peng, Xiongqi; Yu, Tao; Kim, Yun-Hae

doi:10.1016/j.mtcomm.2022.103647

Cited by 4 publications

(4 citation statements)

References 39 publications

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“…The higher amount of SiO 2 in QRZ than in FLS might be responsible for obtaining an improvement in the tensile modulus of TPU due to the stiffening effect of silica. [ 48–50 ] On the contrary, FLS additions gave a slight reduction in tensile modulus. Silanization of minerals yielded remarkable increases in modulus values of composites since compatible filler‐polymer networks were formed thanks to enhanced interactions.…”

Section: Resultsmentioning

confidence: 99%

“…TPU/QRZ composite samples showed higher hardness parameters compared to TPU/FLS composites due to the higher stiffness of QRZ relative to FLS caused by the higher SiO 2 content. [ 49,50 ]…”

Section: Resultsmentioning

confidence: 99%

“…The improvement of storage modulus may be caused by having higher stiffness of QRZ than that of FLS which is attributed to the silica composition of QRZ. [ 49–52 ]…”

Section: Resultsmentioning

confidence: 99%

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Contribution of surface silanization process on mechanical characteristics of TPU‐based composites involving feldspar and quartz minerals

Bouzmane

Tirkes

Yılmaz

et al. 2022

Vinyl Additive Technology

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In this study, quartz and feldspar powders were surface treated using a silane coupling agent to achieve a more compatible mineral surface with the polymer matrix. Details of surface characteristics of minerals were examined by energydissipative X-ray spectroscopy, contact angle measurements, and infrared spectroscopy. Thermoplastic polyurethane-TPU was compounded with minerals using the melt-blending technique. Mechanical, thermo-mechanical, meltflow, and morphological characterizations of TPU and relevant composites were performed by utilizing tensile and Shore hardness tests, dynamic mechanical analysis (DMA), melt flow index (MFI) measurements, and scanning electron microscopy (SEM), respectively. Water repellency of TPU and composites were also evaluated experimentally. Effects of surface treatments were discussed by comparing the results of composites filled with pristine and modified minerals. Results revealed that enrichment of quartz and feldspar surfaces confer mechanical and thermo-mechanical performance of composites. Mineral inclusions caused no drastic changes to the MFI parameter of TPU. The silane layer on the mineral surface displayed a barrier effect to water uptake of composites. Homogeneous dispersion and improved interfacial adhesion of mineral particles to the TPU phase were confirmed with help of SEM observations. Quartz exhibited slightly higher performance thanks to its silicarich composition. The findings of this research exhibited the considerable influence of the silane layer on the mineral surface on the mechanical performance of TPU-based composites.

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Section: Resultsmentioning

confidence: 99%

“…TPU/QRZ composite samples showed higher hardness parameters compared to TPU/FLS composites due to the higher stiffness of QRZ relative to FLS caused by the higher SiO 2 content. [ 49,50 ]…”

Section: Resultsmentioning

confidence: 99%

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Contribution of surface silanization process on mechanical characteristics of TPU‐based composites involving feldspar and quartz minerals

Bouzmane

Tirkes

Yılmaz

et al. 2022

Vinyl Additive Technology

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“…Ding et al [ 15 ] found that the glass transition temperature (

) and shape memory performance of silanized vapor-grown carbon nanofiber incorporated SMEPs were remarkably enhanced. Other studies also concluded that incorporating nanosized halloysite nanotubes, kaolinites, and micro-sized diatomites to basalt fiber reinforced epoxies is advantageous in improving the stiffness and interlaminar fracture toughness of SMEPs [ 16 , 17 , 18 , 19 ].…”

Section: Introductionmentioning

confidence: 99%

Acetylated Nanocelluloses Reinforced Shape Memory Epoxy with Enhanced Mechanical Properties and Outstanding Shape Memory Effect

Zhu

Peng

et al. 2022

Nanomaterials

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Shape memory polymers (SMPs) have aroused much attention owing to their large deformation and programmability features. Nevertheless, the unsatisfactory toughness and brittleness of SMPs still restrict their practical intelligent applications, e.g., textiles, flexible electronics, and metamaterials. This study employed nature-derived nanocelluloses (NCs) as the reinforcement to fabricate shape memory epoxy-based nanocomposites (SMEPNs). An acetylation modification approach was further proposed to ameliorate the intrinsic incompatibility between NCs and epoxy matrix. The storage modulus increases, and the shape memory effect (SME) sustains after acetylated nanocelluloses (ANCs) incorporation. The SMEPNs with 0.06 wt.% ANCs loading perform the most exceptional toughness improvement over 42%, along with the enhanced fracture strain, elastic modulus, and ultimate strength. The incorporated nanoscale ANCs effectively impede crack propagation without deterioration of the macromolecular movability, resulting in excellent mechanical properties and SME.

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Multiscale structural analysis of oil rig mast using mean fields and finite element method

Araújo

Rodrigues

Pires

2022

J Braz. Soc. Mech. Sci. Eng.

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Nonlinear modeling on stiffness properties of diatomite-incorporated BFRPs with experimental strength and toughness evaluations

Cited by 4 publications

References 39 publications

Contribution of surface silanization process on mechanical characteristics of TPU‐based composites involving feldspar and quartz minerals

Contribution of surface silanization process on mechanical characteristics of TPU‐based composites involving feldspar and quartz minerals

Acetylated Nanocelluloses Reinforced Shape Memory Epoxy with Enhanced Mechanical Properties and Outstanding Shape Memory Effect

Multiscale structural analysis of oil rig mast using mean fields and finite element method

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