Smart modification of inorganic fibers and flammability mechanical and radiation shielding properties of their rubber composites

Attia, Nour F.; Hegazi, Elham M.; Abdelmageed, Alaaeldin A.

doi:10.1007/s10973-018-7141-y

Cited by 22 publications

(8 citation statements)

References 42 publications

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“…Therefore, a surface treatment of BF is essential, and many related studies have been reported. For examples, Attia et al [ 18 ] synthesized an organic polyaniline directly on the surface of BF and formed an organic polymer shell on the surface of the inorganic fiber—the tensile strength property was enhanced by 38% and 53% compared to blank and unmodified basalts, respectively. Guo et al [ 19 ] treated BF by using the economical silane agent γ-aminopropyl triethoxysilane (KH550) as a modifier, which showed 194.12% enhancement in impact strength compared to that of pure polypropylene (PP).…”

Section: Introductionmentioning

confidence: 99%

Basalt Fiber Modified Ethylene Vinyl Acetate/Magnesium Hydroxide Composites with Balanced Flame Retardancy and Improved Mechanical Properties

Yao

Yin

et al. 2020

Polymers

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In this study, we selected basalt fiber (BF) as a functional filler to improve the mechanical properties of ethylene vinyl acetate (EVA)-based flame retardant materials. Firstly, BF was modified by grafting γ-aminopropyl triethoxysilane (KH550). Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), scanning electron microscope (SEM), and energy dispersive X-ray spectroscopy (EDS) were used to comprehensively prove the successful modification of the BF surface. Subsequently, the modified BF was introduced into the EVA/magnesium hydroxide (MH) composites by melt blending. The limiting oxygen index (LOI), UL-94, cone calorimeter test, tensile test, and non-notched impact test were utilized to characterize both the flame retardant properties and mechanical properties of the EVA/MH composites. It was found that the mechanical properties were significantly enhanced without reducing the flame retardant properties of the EVA/MH composites. Notably, the surface treatment with silane is a simple and low-cost method for BF surface modification and the pathway designed in this study can be both practical and effective for polymer performance enhancement.

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Section: Introductionmentioning

confidence: 99%

Basalt Fiber Modified Ethylene Vinyl Acetate/Magnesium Hydroxide Composites with Balanced Flame Retardancy and Improved Mechanical Properties

Yao

Yin

et al. 2020

Polymers

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“…Because of inflammability, a common failure of polymers, popular MOFs are also considered to improve their flame retardancy. Despite their expensive raw materials in contrast to other cost-effective nanofillers, − the facile preparation and flexible modification enabled MOFs to be promising candidates as flame retardants for polymeric materials with high-end application. Regarding polymer nanocomposites, the manipulation of the interface for the nanofillers within the polymer matrix is a pressing need because the intense interaction relies on the close contact in the two-phase region. , …”

Section: Introductionmentioning

confidence: 99%

Precise Control of a Yolk-Double Shell Metal–Organic Framework-Based Nanostructure Provides Enhanced Fire Safety for Epoxy Nanocomposites

Hou

Song

Rehman

et al. 2022

ACS Appl. Mater. Interfaces

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Nanomaterials derived from metal–organic frameworks (MOFs) are highly promising as future flame retardants for polymeric materials. The precise control of the interface for polymer nanocomposites is taking scientific research by storm, whereas such investigations for MOF-based nanofillers are rare. Herein, a novel yolk-double shell nanostructure (ZIF-67@layered double hydroxides@polyphophazenes, ZIF@LDH@PZS) was subtly designed and introduced into epoxy resin (EP) as a flame retardant to fill the vacancy of yolk/shell construction in the field. Meanwhile, the interface of the polymer nanocomposites can be further accurately tailored by the outermost layer of the nanofillers from PZS to Ni(OH)2 (NH), by which hollow nanocages with treble shells (LDH@PZS@NH) were obtained. It is remarkably interesting that LDH@PZS@NH endows the EP with the lowest peak of heat release rate in the cone calorimeter test, but the total heat and smoke releases (THR and TSP) of the nanocomposites are even higher than those of the neat polymer. In contrast, EP blended with ZIF@LDH@PZS shows outstanding comprehensive performance: with 2 wt.%, the limiting oxygen index is increased to 29.5%, and the peak heat release rate is reduced by 26.0%. The impact and flexural strengths are slightly lowered, while the storage modulus is enhanced remarkably compared with that for neat EP. The flame retardant mechanism is systematically explored focusing on the interfacial interactions of different hybrids within the epoxy matrix, ushering in a new stage of study of nanostructural design-guided interface manipulation in MOF-based polymer nanocomposites.

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“…Structural components containing basalt fibres could provide thermal shielding and thus flame resistance without further fire-retardant additives. Attai et al [14] have modified the surface of basalt fibres with polyaniline coating, which improved the tensile strength of EPDM rubber matrix composites by 38 and 53% compared to blank rubber and untreated basalt fibre composites. Also, the flame resistance was improved by 62 and 16% reduction in the peak heat release rate, and they managed to achieve a significant reduction in emission of CO and CO 2 gases by 65 and 58%, respectively.…”

Section: Introductionmentioning

confidence: 99%

Potential applications of basalt fibre composites in thermal shielding

Tamás‐Bényei

Stella

2022

J Therm Anal Calorim

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This present study demonstrates the applicability of basalt fibre-reinforced polymer (BFRP) composite materials in thermal shielding. Basalt fibres are produced from natural, sustainable sources and obtain comparable mechanical performance to commercial glass fibres. In addition to their mechanical strength, BFRPs have excellent chemical and heat resistance. Basalt fibres tend to have a higher thermal stability than their competitor glass fibres. The heat resistance of basalt fibres derives from the volcanic origin of the raw material basalt gabbro. These favourable features make BFRP composites an attractive group of materials for application in several industries. To test the fire resistance of the materials, we produced mono and hybrid composite plates from different types of basalt reinforcement structures (milled fibres, chopped fibres and woven fabric) and epoxy resin. Surface treatment with silane coupling agents significantly improved the mechanical and thermomechanical properties of BFRPs by up to 70%. Three-point bending tests were performed to determine the flexural properties of the composite specimens, and their fire behaviour was evaluated with a horizontal burning test, and a novel jet fire test assisted with infrared thermal imaging. Higher fibre content in hybrid laminates decreased the linear burning rate by 8%, and the maximum surface temperature was approximately 80 °C lower after jet fire impingement compared to woven reinforcement structure.

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Smart modification of inorganic fibers and flammability mechanical and radiation shielding properties of their rubber composites

Cited by 22 publications

References 42 publications

Basalt Fiber Modified Ethylene Vinyl Acetate/Magnesium Hydroxide Composites with Balanced Flame Retardancy and Improved Mechanical Properties

Basalt Fiber Modified Ethylene Vinyl Acetate/Magnesium Hydroxide Composites with Balanced Flame Retardancy and Improved Mechanical Properties

Precise Control of a Yolk-Double Shell Metal–Organic Framework-Based Nanostructure Provides Enhanced Fire Safety for Epoxy Nanocomposites

Potential applications of basalt fibre composites in thermal shielding

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