New Light Flame-Retardant Materials of Reinforced Melamine-Urea-Formaldehyde (MUF) Foam with Wood Pulp Fiber: Preparation and Properties Evaluation

Li, Shou Hai; Zhuang, Xiao; Feng, Yu; Wang, Chun Peng; Chu, Fu Xiang

doi:10.4028/www.scientific.net/amr.250-253.951

Cited by 3 publications

(1 citation statement)

References 8 publications

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“…Melamine formaldehyde (MF) foam is a type of thermosetting polymer foam. It possesses excellent flame retardancy, efficient thermal insulation, outstanding corrosion resistance, good sound adsorption and so on . As a type of intrinsically flame‐retardant foam, MF foam shows obvious advantages in terms of flame‐retardant property over conventional polymer foams, such as PU, polystyrene, polyethylene and polypropylene, which are highly flammable .…”

Section: Introductionmentioning

confidence: 99%

A flame‐retardant composite foam: foaming polyurethane in melamine formaldehyde foam skeleton

Liao

Yuan

et al. 2018

Polymer International

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A composite foam, polyurethane–melamine formaldehyde (PU/MF) foam, was prepared through foaming PU resins in the three‐dimensional netlike skeleton of MF foam. The chemical structure, morphology, cell size and distribution, flame retardancy, thermal properties and mechanical properties of such composite foam were systematically investigated. It was found that the PU/MF foam possessed better fire retardancy than pristine PU foam and achieved self‐extinguishment. Moreover, no melt dripping occurred due to the contribution of the carbonized MF skeleton network. In order to further improve the flame retardancy of the composite foam, a small amount of a phosphorus flame retardant (ammonium polyphosphate) and a char‐forming agent (pentaerythritol) were incorporated into the foam, together with the nitrogen‐rich MF, thus constituting an intumescent flame‐retardant (IFR) system. Owing to the IFR system, the flame‐retardant PU/MF foam can generate a large bulk of expanded char acting as an efficient shielding layer to hold back the diffusion of heat and oxygen. As a result, the flame‐retardant PU/MF foam achieved a higher limiting oxygen index of 31.2% and exhibited immediate self‐extinguishment. It exhibited significantly reduced peak heat release rate and total heat release, as well as higher char residual ratio compared to PU foam. Furthermore, the composite foam also showed obviously improved mechanical performance in comparison with PU foam. Overall, the present investigation provided a new approach for fabricating a polymer composite foam with satisfactory flame retardancy and good comprehensive properties. © 2018 Society of Chemical Industry

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Section: Introductionmentioning

confidence: 99%

A flame‐retardant composite foam: foaming polyurethane in melamine formaldehyde foam skeleton

Liao

Yuan

et al. 2018

Polymer International

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Effortless impregnation method for melamine formaldehyde foams exhibiting elevated thermal stability and exceptional flame retardant characteristics

Chen,

He,

Sun

et al. 2024

J of Applied Polymer Sci

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Melamine‐formaldehyde (MF) foam, while intrinsically flame retardant, necessitates further refinement to meet stringent fire safety standards, particularly in terms of heat release rate and thermal stability. In this study, an innovative approach was adopted wherein an inorganic substance, potassium water glass (WG), was employed to create an encapsulation layer on the surface of the MF foam structure via a straightforward dip‐coating technique. The composite foam underwent a comprehensive analysis of its structure and flame retardant characteristics, using test evaluations such as micro‐scale combustion calorimeter (MCC) testing, cone calorimeter testing (CCT), and thermogravimetric‐Fourier infrared spectrometer (TG‐IR) assessments. It was found that the even coating of WG on the MF foam surface profoundly enhanced the foam's structural integrity. Utilizing the shielding properties of this inorganic layer, the hybrid foam's thermal stability experiences a remarkable augmentation. The peak of heat release rate (pHRR) and the total heat release rate (THR) of the MF foam experienced an impressive reduction of 85.2% and 78.8%, correspondingly. Notably, this advancement is concomitant with a substantial decrease of 39.2% in the total smoke release (TSR) and a notable amelioration in mechanical characteristics. Such developments undeniably broaden their application horizons across diverse domains.

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Toughening of melamine–formaldehyde foams and advanced applications based on functional design

Song

Lee

Wang

et al. 2023

Journal of Industrial and Engineering Chemistry

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New Light Flame-Retardant Materials of Reinforced Melamine-Urea-Formaldehyde (MUF) Foam with Wood Pulp Fiber: Preparation and Properties Evaluation

Cited by 3 publications

References 8 publications

A flame‐retardant composite foam: foaming polyurethane in melamine formaldehyde foam skeleton

A flame‐retardant composite foam: foaming polyurethane in melamine formaldehyde foam skeleton

Effortless impregnation method for melamine formaldehyde foams exhibiting elevated thermal stability and exceptional flame retardant characteristics

Toughening of melamine–formaldehyde foams and advanced applications based on functional design

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