Fabrication of novel formulations from rigid polyurethane foams and mortar for potential applications in building industry

Maamoun, A. A.; Mahmoud, A. A.; Nasr, El-Sayed A.R.; Soliman, E. A.; Sarwar, Muhammad Ilyas; Zulfiqar, Sonia

doi:10.1007/s10965-019-1934-y

Cited by 11 publications

(5 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Section: Pu Foaming Materialsmentioning

confidence: 99%

“…Maamoun et al have used water as chemical foaming agent for PU foam/mortar mixes, and revealed that high water content apparently contributed to large microporous structures. [73] Large amount of CO 2 gas was produced inside the PU pores. The formation of large pores was also conducive to the final acoustic absorption.…”

Section: Chemical Foamingmentioning

confidence: 99%

mentioning

confidence: 99%

See 2 more Smart Citations

Recent Advances in Preparation and Structure of Polyurethane Porous Materials for Sound Absorbing Application

Dong,

Duan,

Chen

et al. 2024

Macromol. Rapid Commun.

View full text Add to dashboard Cite

Various acoustic materials have been developed to resolve noise pollution problem in many industries. Especially, materials with porous structure have been broadly used to absorb sound energy in civil construction and transportation area. Polyurethane (PU) porous materials possess excellent damping properties, good toughness and well‐developed pore structures, which have a broad application prospect in sound absorption field. This work aimed to summarize the recent progress of fabrication and structure for PU porous materials in sound absorption application. The sound absorption mechanisms of porous materials were introduced. Different kinds of structure for typical PU porous materials in sound absorption application were covered and highlighted, which included PU foam, modified PU porous materials, aerogel, templated PU and special PU porous materials. Finally, the development direction and existing problems of PU material in sound absorption application were briefly prospected. It can be expected that porous PU with high sound absorption coefficient can be obtained by using some facile methods. The design and accurate regulation of porous structures or construction of multilayer sound absorption structure will be favorably recommended to fulfill the high demand of industrial and commercial applications in the future work.This article is protected by copyright. All rights reserved

show abstract

Section: Pu Foaming Materialsmentioning

confidence: 99%

Section: Chemical Foamingmentioning

confidence: 99%

See 1 more Smart Citation

Recent Advances in Preparation and Structure of Polyurethane Porous Materials for Sound Absorbing Application

Dong,

Duan,

Chen

et al. 2024

Macromol. Rapid Commun.

View full text Add to dashboard Cite

show abstract

“…46 FTIR pattern of neat FPU foam and CO-FPU-WSS composites reveals that the band at 3291 cm À1 which corresponds to N-H stretching. 47 The peaks at 2859 cm À1 and 2965 cm À1 are associated with aliphatic -CH 2 stretching. 48 The band at 1530 cm À1 corresponds to the aromatic C=C group.…”

Section: Ftir Characterizationmentioning

confidence: 99%

Enhancement of the mechanical and acoustical properties of flexible polyurethane foam/waste seashell composites for industrial applications

Maamoun

El-Wakil

El-Basheer

2022

Journal of Cellular Plastics

View full text Add to dashboard Cite

The importance of this work is the use of waste seashells WSS (5, 10, 15, 20, 25, and 30 wt.%) as a bio-filler to enhance the mechanical and acoustical characteristics of flexible polyurethane foam (FPU). Petroleum-based polyol was partially replaced by 25% castor oil resulting in high renewable content. The WSS was characterized by X-ray photoelectron spectroscopy (XPS). The chemical structure and morphological features for castor oil-based flexible polyurethane waste seashells (CO-FPU-WSS) composites were detected using Fourier transform infrared (FTIR) and Scanning electron microscopy (SEM) techniques, respectively. Besides, the mechanical, non-acoustical and acoustical properties were investigated. The results indicated that bio-based FPU composites possessed better compressive strength than neat FPU foam. In addition, FPU composites enhance the sound absorption below 500 Hz. A 6 cm air gap behind the sample shifted the absorption toward 400 Hz (0.85) for CO-FPU-WSS 25% composite with a broader band. Thus, the FPU foam composite is considered a promising candidate for sound absorption applications such as for the automotive and building industries.

show abstract

“…The cellular structure of FPU can be effectively controlled by balancing these reactions. 3,6 The remarkable feature of FPU foams is their unparalleled sound absorption qualities, rendering them indispensable in various construction settings, such as theatres, cinemas, offices, and sound studios. Additionally, FPU finds applications in the transportation sector for sound dampening, comfort, and support.…”

Section: Introductionmentioning

confidence: 99%

Eco-conscious upcycling of sugarcane bagasse into flexible polyurethane foam for mechanical & acoustic relevance

El-Metwaly,

Mohamed,

El-Basheer

et al. 2024

RSC Adv.

Self Cite

View full text Add to dashboard Cite

show abstract

Fabrication of novel formulations from rigid polyurethane foams and mortar for potential applications in building industry

Cited by 11 publications

References 24 publications

Recent Advances in Preparation and Structure of Polyurethane Porous Materials for Sound Absorbing Application

Recent Advances in Preparation and Structure of Polyurethane Porous Materials for Sound Absorbing Application

Enhancement of the mechanical and acoustical properties of flexible polyurethane foam/waste seashell composites for industrial applications

Eco-conscious upcycling of sugarcane bagasse into flexible polyurethane foam for mechanical & acoustic relevance

Contact Info

Product

Resources

About