scholarly journals Nitrogen/phosphorus synergistic flame retardant-filled flexible polyurethane foams: microstructure, compressive stress, sound absorption, and combustion resistance

RSC Advances ◽  
2019 ◽  
Vol 9 (37) ◽  
pp. 21192-21201 ◽  
Author(s):  
Ting-Ting Li ◽  
Mengfan Xing ◽  
Hongyang Wang ◽  
Shih-Yu Huang ◽  
Chengeng Fu ◽  
...  
Keyword(s):  
Flame Retardant ◽  
Polyurethane Foam ◽  
Sound Absorption ◽  
Heat Insulation ◽  
Polyurethane Foams ◽  
Rigid Polyurethane Foam ◽  
Flexible Polyurethane Foam ◽  
Synergistic Flame Retardant ◽  
Flexible Polyurethane ◽  
Nitrogen Phosphorus

Compared with a rigid polyurethane foam, a flexible polyurethane foam (FPUF) has more diversified applications including filtration, sound absorption, vibration-proofing, decoration, packaging, and heat insulation.

Novel flame retardant flexible polyurethane foam: plasma induced graft-polymerization of phosphonates

RSC Advances ◽  
2015 ◽  
Vol 5 (78) ◽  
pp. 63853-63865 ◽  
Author(s):  
Maude Jimenez ◽  
Nicolas Lesaffre ◽  
Séverine Bellayer ◽  
Renaud Dupretz ◽  
Marianne Vandenbossche ◽  
...  
Keyword(s):  
Flame Retardant ◽  
Polyurethane Foam ◽  
Flame Retardancy ◽  
Graft Polymerization ◽  
Polyurethane Foams ◽  
Flexible Polyurethane Foam ◽  
Flexible Polyurethane

Flame retardancy of flexible polyurethane foams has become an issue due to very severe regulations.

scholarly journals ESTUDO DA VIABILIDADE TÉCNICA DO PROCESSAMENTO DE RESÍDUOS DE ESPUMA FLEXÍVEL DE POLIURETANO POR UM MOINHO DE FACAS

2020 ◽  
Vol 11 (1) ◽  
pp. 72
Author(s):  
Marcio Eduardo Marquez ◽  
Fabrício Celso
Keyword(s):  
Particle Size ◽  
Polyurethane Foam ◽  
Material Flow ◽  
Process Capability ◽  
Polyurethane Foams ◽  
Industrial Scale ◽  
Toilet Seat ◽  
Flexible Polyurethane Foam ◽  
Flexible Polyurethane

ResumoA necessidade de encontrar meios para reciclar materiais que até então eram apenas descartados no meio ambiente traz também a necessidade de conhecermos a viabilidade de alguns processos em meio industrial, avaliando-os não apenas financeira, mas também tecnicamente, por meio do uso de equipamentos de fácil acesso, manuseio e manutenção. Pensando nisso, este trabalho busca aplicar o processo de trituração por moinho de facas a espumas flexíveis de poliuretano, nas quais ainda se percebe carência de estudos em se tratando de sua redução de partículas por meio de processos industriais. Com o uso de um moinho de facas, buscou-se moer aparas da fabricação de assentos sanitários, sendo que a capacidade do processo e a granulometria final do material triturado foram quantitativamente avaliados e o fluxo de material bem como a moagem em si, foram avaliados qualitativamente. Com uma capacidade aproximada de 1 kg/h, uma granulometria apresentando 46,3% das partículas com dimensões de 2,01 a 4,00mm, fluxo e moagem insatisfatórios, este processo, tal como estudado neste trabalho, foi considerado ineficiente na busca de trituração da espuma flexível de poliuretano, mantendo a necessidade de buscar ainda, em meio industrial, solucionar um problema de processo de reciclagem deste material.Palavras-chave: Espuma Flexível de Poliuretano. Moinho de facas. Capacidade. Granulometria. ABSTRACTThe need of to find ways to recycle materials those only were leave on the environment, brings the need in to know the viability of some processes in industrial scale, evaluating them not just financially form but technically to, by the use of commun, and cheaps, and easily maintenece equipements.Therefore, this paper aims to apply the grind process by knife mill to flexible polyurethane foams those don’t has a great variety of studys about their reduction particle size by processes in industrial scale. Using a knife mill, some foam burrs from the toilet seat fabrication were grinded, and the process capability, as much as the material granulometry, were quantitatively measured. The material flow into the knife mill and the grinder process were qualitatively evaluated. With a capability around 1 kg/h and a granulometry with 46,3% of the particules size around 2,01 to 4,00mm, and flow, and grind unsatisfactory, this process, in that way, was considerd inefficient in find a form of to grind flexible polyurethane foam, and it takes necessary, in industrial way, to solve a problem for reciclyng these kind of material.Keywords: Flexible polyurethane foam. Knife mill. Capability. Granulometry.

Green flame-retardant flexible polyurethane foam based on cyclodextrin

2020 ◽  
Vol 178 ◽  
pp. 109171 ◽  
Author(s):  
Shi-Lin Zeng ◽  
Cheng-Yuan Xing ◽  
Li Chen ◽  
Long Xu ◽  
Bang-Jing Li ◽  
...  
Keyword(s):  
Flame Retardant ◽  
Polyurethane Foam ◽  
Flexible Polyurethane Foam ◽  
Flexible Polyurethane

A novel and effective method to fabricate flame retardant and smoke suppressed flexible polyurethane foam

RSC Advances ◽  
2015 ◽  
Vol 5 (83) ◽  
pp. 67878-67885 ◽  
Author(s):  
Ying Pan ◽  
Jing Zhan ◽  
Haifeng Pan ◽  
Wei Wang ◽  
Hua Ge ◽  
...  
Keyword(s):  
Flame Retardant ◽  
Polyurethane Foam ◽  
Magnesium Hydroxide ◽  
Smoke Production ◽  
Flexible Polyurethane Foam ◽  
Flexible Polyurethane

In the present work, magnesium hydroxide were successfully deposited on the surface of flexible polyurethane foam to suppress its flammability and smoke production.

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