Synthesis, characterization, biocompatibility, thermal and mechanical performances of sawdust reinforced composite

Haque, E.; Khan, Wahab; Chowdhury, Najmul Kabir

doi:10.1016/j.polymertesting.2020.106764

Cited by 10 publications

(1 citation statement)

References 32 publications

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“…The high stiffness of AgNPs is another contributor to the improvement of tensile modulus. [ 31,32 ] When the temperature rises to 35°C, the tensile modulus first increases and then decreases as the AgNP content increases, and achieves the maximum value at the content of 4 vol%. For composites with the AgNP content larger than 4 vol%, the results show that the temperature effect becomes serious and positively correlated with the temperature rising.…”

Section: Resultsmentioning

confidence: 99%

Temperature effect on thermal, mechanical, and electrical properties of Ag nanoparticle filled thermoplastic polyurethane composites

Chen

Zhang

2021

Polymer Composites

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Ag nanoparticle filled thermoplastic polyurethane (AgNPs/TPU) composites are widely used in medical, energy, packaging, electronic devices, additive manufacturing and many other fields, where the service temperature fluctuates easily, making it necessary to study the temperature effect on the properties of composites. In this work, multifunctional AgNPs/TPU composites with different AgNP contents were prepared by a mixing and hot‐pressing method. The results show that the phase change property of TPU is not affected by the addition of AgNPs, but the thermal diffusivity is improved. As the content of AgNPs increases, the thermal conductivities of AgNPs/TPU composites increase significantly, whereas the temperature has an opposite effect. The results of elongation at break and tensile strength show a decreased trend with the increase in the AgNP content and a trend of first increasing and then decreasing with the increase in temperature. As the temperature increases, the tensile moduli of AgNPs/TPU composites decrease significantly. For the temperature higher than 50°C, the electrical percolation thresholds of composites decrease from 5.5 vol% to a lower content. The results prove that the temperature has a significant influence on the thermal, mechanical, and electrical properties of AgNPs/TPU composites.

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Section: Resultsmentioning

confidence: 99%

Temperature effect on thermal, mechanical, and electrical properties of Ag nanoparticle filled thermoplastic polyurethane composites

Chen

Zhang

2021

Polymer Composites

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Morphological, thermal and mechanical properties of wheat‐straw reinforced copper nanocomposite

Haque,

Chowdhury,

Khan

2024

Polymer Composites

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The work summarizes an innovative nanocomposite including synthesized copper nanoparticle (CuNP) impregnated wheat straw (WS) (the agronomic waste from an wheat plant) reinforced unsaturated polyester resin has been established. The addition of nanoparticles (NPs) increased the antifungal properties (~11%), durability (~9%), and strength (~39%) of the composites. Therefore, these nanoparticles have been synthesized from a copper chloride dihydrate precursor and they have been impregnated into wheat straw via cationization. This copper‐impregnated wheat straw (CuIWS) was formulated and employed to create a strong and long‐lasting nanocomposite with unsaturated polyester resin. Their morphological, mechanical, chemical, biodegradability (BD), and thermal properties were estimated and relationships were explicated systematically. Particularly, the tensile strength of polyester resin, crude and treated WS (cationized and copper‐impregnated) composites were 11.70, 14.20, 20.92, and 22.34 N/mm2 respectively. Therefore the reinforcement capability for crude, cationized and copper‐impregnated WS composites increased by ~22%, 75%, and 92% respectively. The residual ash was just about 16.23%, 12.04% and 6.56% for copper impregnated wheat straw composite (CuIWSC), Cationized wheat straw composite (CWSC) and untreated wheat straw composite (UTWSC) respectively point to the existence of ~4.1% Cu incorporated into the wheat straw which holds up the energy dispersive x‐ray (EDX) spectra of ~4.2% copper content. Thermogravimetric analysis (TGA) indicates that the nanocomposites are stable up to 325°C. These nanocomposites also show superlative crystallinity compared to other ones. Water uptake capacity followed typical Fickian diffusion law. The developed nanocomposites might be suitable for automobile and aircraft parts, furniture, and other indoor to outdoor applications.Highlights TS of the composites increased by increasing the WS filling up to 15%. The crystallinity increased after the addition of nanoparticles. The typical water uptake properties followed the Fickian diffusion rule. Incorporation of nanoparticles increased 11% antifungal properties. The developed nanocomposites are used for inside and outside applications.

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Studies on morphological, physico-chemical and mechanical properties of wheat straw reinforced polyester resin composite

2021

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Synthesis, characterization, biocompatibility, thermal and mechanical performances of sawdust reinforced composite

Cited by 10 publications

References 32 publications

Temperature effect on thermal, mechanical, and electrical properties of Ag nanoparticle filled thermoplastic polyurethane composites

Temperature effect on thermal, mechanical, and electrical properties of Ag nanoparticle filled thermoplastic polyurethane composites

Morphological, thermal and mechanical properties of wheat‐straw reinforced copper nanocomposite

Studies on morphological, physico-chemical and mechanical properties of wheat straw reinforced polyester resin composite

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