Water absorption, residual mechanical and thermal properties of hydrothermally conditioned nano-Al2O3 enhanced glass fiber reinforced polymer composites

Nayak, Ramesh Kumar; Ray, Bankim Chandra

doi:10.1007/s00289-017-1954-x

Cited by 44 publications

(15 citation statements)

References 39 publications

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“…The improvement in the interface bond is also realized in the mechanical test. These results were in agreement with the results of researches that studied the effects of adding nanocellulose to starch-based composites 33,35 and Nayak’s and Ray’s research about the effect of nano-aluminum oxide filler concentration on moisture absorption kinetics of hydrothermally treated glass fiber which reinforced polymer composites 36…”

Section: Resultssupporting

confidence: 91%

A study on the thermal and mechanical properties of composites made of nanolignocellulose and Pebax^®polymer

Farsi

Tavasoli

Yousefi

et al. 2018

Journal of Thermoplastic Composite Materials

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This study aimed at producing the biodegradable composite from lignocellulose nanofibers (LCNFs) and Pebax® thermoplastic elastomer. For this purpose, LCNFs at different levels of 0, 1, 3, and 5% were considered. The LCNFs were prepared by benzyl alcohol and then mixed with Pebax®. The liquid phase of the LCNFs and soluble polymer was prepared and then the masterbatches were mixed in an internal mixer (Model 815802, Brabender, Germany). The mixtures from the internal mixer were put into a hot press and test samples were compress-molded. The physical properties results indicated that water absorption and thickness swelling decreased by the addition of more amount of LCNF. By the addition of LCNFs to polymer, the tensile strength and modulus and impact strength were increased compared to samples without LCNF. No regular trend of enthalpy changes was observed as the content of LCNF changed. When the LCNF concentration was increased to 5%, the crystallization temperature was increased. As the LCNF concentration increased to 3%, the glass transition temperature ( Tg) was decreased, whereas by incorporating more LCNFs, the Tg was increased. The result of the Fourier transform infrared spectra showed the peaks at 1740 cm−1 which indicated the presence of polyamide bonds. Also, new peaks were observed in the range of 1400–1500 cm−1 that was probably related to the presence of C−C bonds of glucose at LCNFs chains.

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Section: Resultssupporting

confidence: 91%

A study on the thermal and mechanical properties of composites made of nanolignocellulose and Pebax^®polymer

Farsi

Tavasoli

Yousefi

et al. 2018

Journal of Thermoplastic Composite Materials

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“…Figure 10B shows the diffusivity against fabricated composite and from data collected the diffusion coefficient for NJMD‐0 and NJMD‐1, NJMD‐2 and NJMD‐3 are increased by 55.03%, 89.26% and 91.83%, respectively as compared to NJMD‐0. The increase in diffusion coefficient with the increase in filler wt% is attributed to that over a period of time and the micro‐cracks are formed due to the swelling of fiber 11,27 …”

Section: Resultsmentioning

confidence: 99%

Effect of micro‐sized marble dust on mechanical and thermo‐mechanical properties of needle‐punched nonwoven jute fiber reinforced polymer composites

et al. 2020

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This work explores effectiveness of marble dust as a filler in needle‐punch nonwoven jute fiber reinforced polymer composites, prepared through vacuum‐assisted resin transfer molding process. Four different particulate filled composites are fabricated by varying the filler percentage from 0 to 24 wt% at an interval of 8 wt% marble dust under the controlled environment. The mechanical characterizations such as flexural strength, interlaminar shear strength, compressive strength, and impact strength enhanced with the increase in filler wt% in the composite. The improvement rate is observed from 14% to 33% compared to the unfilled composite. However, for tensile strength is concerned with the increase in filler content in the composites, the strength shows declined in order irrespective of filler content. This study also focuses on high‐temperature applications, for that dynamic mechanical analysis is performed in a three‐point bending mode with 1 Hz frequency as a function of temperature. Similarly, in case of fracture toughness of the proposed composites, the fracture toughness increases approximately from ≈22%, 27% and 59% respectively over unfilled composite with the change in filler percentage. Simultaneously, numerical simulation for fracture toughness is also performed and compared with experimental results. The deviation is found in the range from 0% to 4% with R2 value of 0.984. Based upon the outcome of present results, this research work can be subsequently extended for the low‐grade housing applications in one end and at the same time, optimal waste utilization can also be possible to reduce the environmental waste.

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“…The use of nano-structured polymers as matrix/adhesive for FRP is expected to become a realistic alternative to traditional polymeric products in the civil engineering field due to their superior properties and greater durability against moisture, temperatures, hash environments, and fire. Nano-structured polymers are typically produced as nano-composites, based on preformed nano-sized inorganic particles (clay [ 53 , 54 , 55 , 56 ], carbon nano-tube [ 57 , 58 ], graphene [ 59 ], inorganic nanoparticles [ 60 , 61 , 62 , 63 ] such as SiO 2 [ 64 ], ZnO [ 65 , 66 ], Al 2 O 3 [ 67 ], and TiO 2 [ 68 ]).…”

Section: Development Of Improved Materialsmentioning

confidence: 99%

“…However, the type, amount, and distribution of nanoparticles determine whether the matrix/composite properties improve or deteriorate [ 70 , 73 ]. The presence of hydrophilic nanoparticles (e.g., nanoclays) may produce increased water absorption, swelling, and hydrolysis [ 54 , 67 , 72 , 73 , 81 ], but a good particle’s dispersion is able to provide a barrier to gas/liquid [ 80 ]. Interactions between matrix and nanoparticles or agglomeration may reduce the T g [ 58 , 59 ].…”

Section: Development Of Improved Materialsmentioning

confidence: 99%

“… Field Emission scanning Electron Microscopy (FESEM) images of fractured surface of hydrothermally conditioned samples having different wt % of nano-Al 2 O 3 : ( a ) 0.0; ( b ) 0.1; ( c ) 0.3; ( d ) 0.7 [ 67 ]. Reprinted by permission from Springer Nature: Springer, Polymer Bulletin 74: 4175–4194, Water absorption, residual mechanical and thermal properties of hydrothermally conditioned nano-Al 2 O 3 enhanced glass fiber reinforced polymer composites, Ramesh Kumar Nayak, Bankim Chandra Ray, Copyright (2017).…”

Section: Figurementioning

confidence: 99%

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Durability Issues and Challenges for Material Advancements in FRP Employed in the Construction Industry

Frigione

Lettieri

2018

Polymers

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The use of fiber reinforced polymer (FRP) composites for the rehabilitation of buildings or other infrastructure is increasingly becoming an effective and popular solution, being able to overcome some of the drawbacks experienced with traditional interventions and/or traditional materials. The knowledge of long-term performance and of durability behavior of FRP, in terms of their degradation/aging causes and mechanisms taking place in common as well as in harsh environmental conditions, still represents a critical issue for a safe and advantageous implementation of such advanced materials. The research of new and better performing materials in such fields is somewhat limited by practical and economical constrains and, as a matter of fact, is confined to an academic argument.

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Water absorption, residual mechanical and thermal properties of hydrothermally conditioned nano-Al2O3 enhanced glass fiber reinforced polymer composites

Cited by 44 publications

References 39 publications

A study on the thermal and mechanical properties of composites made of nanolignocellulose and Pebax^®polymer

A study on the thermal and mechanical properties of composites made of nanolignocellulose and Pebax^®polymer

Effect of micro‐sized marble dust on mechanical and thermo‐mechanical properties of needle‐punched nonwoven jute fiber reinforced polymer composites

Durability Issues and Challenges for Material Advancements in FRP Employed in the Construction Industry

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Water absorption, residual mechanical and thermal properties of hydrothermally conditioned nano-Al2O3 enhanced glass fiber reinforced polymer composites

Cited by 44 publications

References 39 publications

A study on the thermal and mechanical properties of composites made of nanolignocellulose and Pebax®polymer

A study on the thermal and mechanical properties of composites made of nanolignocellulose and Pebax®polymer

Effect of micro‐sized marble dust on mechanical and thermo‐mechanical properties of needle‐punched nonwoven jute fiber reinforced polymer composites

Durability Issues and Challenges for Material Advancements in FRP Employed in the Construction Industry

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A study on the thermal and mechanical properties of composites made of nanolignocellulose and Pebax^®polymer

A study on the thermal and mechanical properties of composites made of nanolignocellulose and Pebax^®polymer