Water-based flame retardant coating using nano-boehmite for expanded polystyrene (EPS) foam

Hamdani-Devarennes, Siska; Hage, Roland El; Dumazert, Loïc; Sonnier, Rodolphe; Ferry, Laurent; Lopez-Cuesta, J.-M.; Bert, Christophe

doi:10.1016/j.porgcoat.2016.04.036

Cited by 33 publications

(16 citation statements)

References 16 publications

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“…Then, 200 × 50 × 20 mm 3 BCs are directly exposed to a flame according to standard to NF EN ISO 11925‐2 using a lab‐made simulated single flame source fire as described by Hamdani‐Devarennes et al . Propane was used as combustion gas and the air flow rate in the combustion chamber was about 0.6–0.8 m s −1 .…”

Section: Methodsmentioning

confidence: 99%

“…That is why the control of energy and the substitution of fossil resources by renewable bio‐sourced materials are of prime importance. In this context, a sustainable development and eco‐design perspective for the building trades (new constructions and renovation) is important to find alternative solutions to traditional insulating materials (e.g., expanded polystyrene and polyurethane foams). Among them, using biobased, renewable, or recycled resources are deeply considered this last decade.…”

Section: Introductionmentioning

confidence: 99%

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A flame retarded chitosan binder for insulating miscanthus/recycled textile fibers reinforced biocomposites

Hage

Khalaf

Lacoste

et al. 2018

J of Applied Polymer Sci

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The main objective of this study is devoted to the development of new insulating and ignifuged miscanthus fibers (Mf)/recycled textile fibers (RTf) reinforced biocomposites (BCs) using chitosan as polysaccharide‐based binder and aluminum trihydroxide (ATH) fillers while focusing on the fire behavior. To achieve this goal, a preliminary study was carried out on flame retarded chitosan‐based films with various ATH‐filler ratios (20, 33, 50, and 60 wt %). ATG and pyrolysis‐combustion flow calorimeter analysis showed significant improvement of chitosan thermal behavior with the addition of 33 wt % and above of ATH. Mechanical properties of films were, however, degraded. Thereafter, different ratios of miscanthus/RTf reinforced BCs (fibers content up to 89.5–90 wt %) were elaborated through thermocompression process using neat chitosan and chitosan/ATH (67/33 wt %) as a binder. Mechanical, thermal, and fire behavior were evaluated. Higher mechanical properties were found for hybrid materials containing the association of both RTf and Mf in comparison to those containing only RTf or Mf. Fireproof BCs (E rating: according to the NF EN ISO 11925‐2), with thermal conductivity values between 0.07 and 0.09 W m−1 K−1 and density range between 270 and 299 kg m−3 were successfully elaborated. The results of this study show a promising use of the chitosan/ATH system as flame retardant for biobased insulating building materials. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47306.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A flame retarded chitosan binder for insulating miscanthus/recycled textile fibers reinforced biocomposites

Hage

Khalaf

Lacoste

et al. 2018

J of Applied Polymer Sci

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“…A relatively large decrease in compressive strengths of mixtures containing the treated EPS pellets was observed as compared to the controlled samples. Nonetheless, several types of EPS foams are highly toxic when exposed to elevated temperatures [185].…”

Section: Plastic (P)mentioning

confidence: 99%

Green Concrete: By-Products Utilization and Advanced Approaches

et al. 2019

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The popularity of concrete has been accompanied with dreadful consumptions that have led to huge carbon footprint in our environment. The exhaustion of natural resources is not yet the problem, but also the energy that is needed for the fabrication of the natural materials, in which this process releases significant amount of carbon dioxide (CO2) emissions into the air. Ordinary Portland Cement (OPC) and natural aggregates, which are the key constituents of concrete, are suggested to be recycled or substituted in order to address the sustainability concern. Here, by-products have been targeted to reduce the carbon footprint, including, but not limited to, fly ash, rice husk ash, silica fume, recycled coarse aggregates, ground granular blast-furnace slag, waste glass, and plastic. Moreover, advanced approaches with an emphasis on sustainability are highlighted, which include the enhancement of the hydration process in cement (calcium-silicate hydrate) and the development of new materials that can be used in concrete (e.g. carbon nanotube). This review paper provides a comprehensive discussion upon the utilization of the reviewed materials, as well as the challenges and the knowledge gaps in producing green and sustainable concrete.

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“…Among halogen‐free flame retardants, metal hydroxides occupy the largest portion of the flame‐retardant market . As a new type of flame retardant, boehmite (AlOOH) has attracted the interest of numerous researchers over the last few years because of its excellent advantages, including its high melting point, low thermal conductivity, easy access, low cost, and controllable morphology . It can be used as a nanofiller to improve the mechanical properties of the polymer, and its tailorable surfaces could make it easier to disperse evenly in resin .…”

Section: Introductionmentioning

confidence: 99%

Improvement of the liquid oxygen compatibility of epoxy via the addition of surface‐modified boehmite

Wang

Peng

et al. 2018

J of Applied Polymer Sci

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To improve the liquid oxygen compatibility and cryogenic mechanical properties of epoxy resin, we synthesized and characterized a hybrid compound (functionalized boehmite) containing boehmite, phosphorus, and silicon element. The thermal properties and liquid oxygen compatibility of the composites were investigated in detail. The results show that the addition of functionalized boehmite increased the char residue obviously but had little effect on the thermal decomposition temperature and glass-transition temperature of the composites. The liquid oxygen compatibility of the composites was significantly improved. Composites with 4 wt % boehmite, 0.99 wt % Si, and 1.1 wt % P passed the impact test. Surface element analyses before and after the drop tests suggested that the functionalized boehmite in epoxy might have prevented the impact reaction in liquid oxygen through two steps. First, the compound decomposed into phosphoric oxyacid and Al 2 O 3 under the impact energy and captured the H• and •OH radicals produced from the decomposition of the resin. Then, the decomposition covered the surface, forming a protective layer to isolate the oxygen. The mechanism of the liquid oxygen compatibility of the epoxy composites was subsequently analyzed. In addition, the cryogenic tensile properties of the epoxy composites containing functionalized boehmite showed that the composites had potential applications under cryogenic liquid oxygen environments.

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Water-based flame retardant coating using nano-boehmite for expanded polystyrene (EPS) foam

Cited by 33 publications

References 16 publications

A flame retarded chitosan binder for insulating miscanthus/recycled textile fibers reinforced biocomposites

A flame retarded chitosan binder for insulating miscanthus/recycled textile fibers reinforced biocomposites

Green Concrete: By-Products Utilization and Advanced Approaches

Improvement of the liquid oxygen compatibility of epoxy via the addition of surface‐modified boehmite

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