Optimization of mechanical, thermo-mechanical, melt-flow and thermal performance of TPU green composites by diatomaceous earth content

Kucuk, Fatma; Sismanoglu, Sedef; Kanbur, Yasin; Tayfun, Ümit

doi:10.1016/j.clet.2021.100251

Cited by 10 publications

(3 citation statements)

References 58 publications

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“…Figure 1A In our previous study on PU coated with DE and uorosilane, the modi ed PU possessed several microscale protrusions due to the deposition of DE and uorosilane on the surface of PU [34]. Similar studies on PU deposited with surplus DE particles resulted in agglomeration on the surface of PU and PU coated with multiwalled carbon nanotubes exhibited surface roughness with superior hydrophobicity [41,42].…”

Section: Resultsmentioning

confidence: 70%

Enhanced oil-spill removal and recovery from water bodies using diatomaceous earth and C18-silane-grafted polyurethane

et al. 2022

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This research focuses on novel synthesis of polyurethane (PU) foam surface functionalized with diatomaceous earth (DE) particles and non-uoro octadecylsilane (C18), intended to improve the hydrophobicity and wettability of the PU foam, in order to evaluate its potential use in enhanced clean-up of oil spill contaminants from water. The modi ed PU foam has been characterized by scanning electron microscopy to understand the microstructural changes during the surface modi cations, Fourier transform infrared spectroscopy to track the integration of functional groups, X-ray Crystallographic study to indicate the increase in the crystallinity of the resultant foam due to the incorporation of silane and thermogravimetric analysis to understand the thermal stability and to calculate the thermal mass loss during the chemical modi cation. Furthermore, to test the enhanced hydrophobicity and oil spill clearance from water, the water contact angle has been measured and crude oil absorption capacity has been tested. The results show increased water repellency attributed to the strong hydrophobicity, and about 2.13 folds of increased crude oil absorption in comparison to the unmodi ed PU foam. Hence, the results collectively suggest the use of the synthesized surface-modi ed PU foam with superior hydrophobicity, water repellence and surface wettability as a potential candidate for enhanced crude oil absorption from water bodies.

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Section: Resultsmentioning

confidence: 70%

Enhanced oil-spill removal and recovery from water bodies using diatomaceous earth and C18-silane-grafted polyurethane

et al. 2022

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“…However, owing to the larger particle size and polarity, it remains challenging to improve the tensile properties other than the stiffness of rubber composites. Although there are many possibilities for enhancing the properties of rubber composites with pure or modified diatomaceous earth, only a few reports have been published [41][42][43][44][45]49]. To the best of our knowledge, this is the first study on diatomaceous earth and carbon nanotubes as hybrid reinforcing fillers in natural rubber composites for suitable applications in mechanical and self-powered electromechanical sensing.…”

Section: Introductionmentioning

confidence: 96%

“…However, despite possessing several advantageous properties for use as a filler in rubber compounding, diatomaceous earth has drawbacks associated with polar functional groups on its surface. Because diatomaceous earth is a naturally abundant, cheap material with a highly porous structure, it is used as a filler in different rubber composites [41][42][43][44][45].…”

Section: Introductionmentioning

confidence: 99%

Fabrication of High-Performance Natural Rubber Composites with Enhanced Filler–Rubber Interactions by Stearic Acid-Modified Diatomaceous Earth and Carbon Nanotubes for Mechanical and Energy Harvesting Applications

Alam,

Kumar,

Jung

et al. 2023

Polymers

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Mechanical robustness and high energy efficiency of composite materials are immensely important in modern stretchable, self-powered electronic devices. However, the availability of these materials and their toxicities are challenging factors. This paper presents the mechanical and energy-harvesting performances of low-cost natural rubber composites made of stearic acid-modified diatomaceous earth (mDE) and carbon nanotubes (CNTs). The obtained mechanical properties were significantly better than those of unfilled rubber. Compared to pristine diatomaceous earth, mDE has higher reinforcing efficiencies in terms of mechanical properties because of the effective chemical surface modification by stearic acid and enhanced filler–rubber interactions. The addition of a small amount of CNT as a component in the hybrid filler systems not only improves the mechanical properties but also improves the electrical properties of the rubber composites and has electromechanical sensitivity. For example, the fracture toughness of unfilled rubber (9.74 MJ/m3) can be enhanced by approximately 484% in a composite (56.86 MJ/m3) with 40 phr (per hundred grams of rubber) hybrid filler, whereas the composite showed electrical conductivity. At a similar mechanical load, the energy-harvesting efficiency of the composite containing 57 phr mDE and 3 phr CNT hybrid filler was nearly double that of the only 3 phr CNT-containing composite. The higher energy-harvesting efficiency of the mDE-filled conductive composites may be due to their increased dielectric behaviour. Because of their bio-based materials, rubber composites made by mDE can be considered eco-friendly composites for mechanical and energy harvesting applications and suitable electronic health monitoring devices.

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Glycidyl methacrylate-modified diatomite as reinforcing filler for natural rubber composite

Zhao,

Duan,

Han

et al. 2024

Colloid Polym Sci

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Optimization of mechanical, thermo-mechanical, melt-flow and thermal performance of TPU green composites by diatomaceous earth content

Cited by 10 publications

References 58 publications

Enhanced oil-spill removal and recovery from water bodies using diatomaceous earth and C18-silane-grafted polyurethane

Enhanced oil-spill removal and recovery from water bodies using diatomaceous earth and C18-silane-grafted polyurethane

Fabrication of High-Performance Natural Rubber Composites with Enhanced Filler–Rubber Interactions by Stearic Acid-Modified Diatomaceous Earth and Carbon Nanotubes for Mechanical and Energy Harvesting Applications

Glycidyl methacrylate-modified diatomite as reinforcing filler for natural rubber composite

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