Liquid-type nucleating agent for improving thermal insulating properties of rigid polyurethane foams by HFC-365mfc as a blowing agent

2016 ◽  
Vol 133 (25) ◽  
Author(s):  
Yeongbeom Lee ◽  
Myung Geun Jang ◽  
Kun Hyung Choi ◽  
Chonghun Han ◽  
Woo Nyon Kim
Keyword(s):  
Nucleating Agent ◽  
Polyurethane Foams ◽  
Rigid Polyurethane Foams ◽  
Blowing Agent ◽  
Thermal Insulating ◽  
Liquid Type ◽  
Insulating Properties

scholarly journals Improved Thermal Insulating Properties of Renewable Polyol Based Polyurethane Foams Reinforced with Chicken Feathers

Polymers ◽  
2019 ◽  
Vol 11 (12) ◽  
pp. 2002 ◽  
Author(s):  
Ibon Aranberri ◽  
Sarah Montes ◽  
Ewa Wesołowska ◽  
Alaitz Rekondo ◽  
Krystyna Wrześniewska-Tosik ◽  
...  
Keyword(s):  
Cell Structure ◽  
Physical And Mechanical Properties ◽  
Polyurethane Foams ◽  
Morphological Properties ◽  
Transmission Factor ◽  
Heat Transmission ◽  
Chicken Feathers ◽  
Thermal Insulating ◽  
Lower Heat ◽  
Insulating Properties

In the present work, sustainable rigid polyurethane foams (RPUF) reinforced with chicken feathers (CF) were prepared and characterized. The bio-based polyol used to formulate the foams was obtained from castor oil. This investigation reports the influence of the chicken feathers fibers as reinforcement of RPUF, on water absorption, thermal, mechanical and morphological properties (field-emission scanning electron microscope—FESEM) and thermal conductivity on water-blown biofoams. It was found that the biofoams improved thermal insulating properties when CF was added. The addition of CF to foams provided lower heat flux density to the biofoams obtaining bio-based materials with better insulation properties. The results obtained in this study proved that the incorporation of CF to RPUF modified the cell structure of the foams affecting their physical and mechanical properties, as well as functional properties such as the heat transmission factor. These biofoams containing up to 45% of bio-based materials have shown the potential to replace fully petroleum-based foams in thermal insulation applications.

1,1,2-Trifluoroethane (HFC-143):Zero-ODP Blowing Agent for Rigid Polyurethane Foams Using Conventional Dispensing Equipment

1995 ◽  
Vol 31 (6) ◽  
pp. 513-531
Author(s):  
P. P. Barthelemy ◽  
A. Leroy ◽  
J. A. Franklin ◽  
L. Zipfel ◽  
W. Krücke
Keyword(s):  
Polyurethane Foams ◽  
Rigid Polyurethane Foams ◽  
Blowing Agent

Formic acid as a co-blowing agent in rigid polyurethane foams

1998 ◽  
Vol 34 (9) ◽  
pp. 1233-1241 ◽  
Author(s):  
M. Modesti ◽  
N. Baldoin ◽  
F. Simioni
Keyword(s):  
Formic Acid ◽  
Polyurethane Foams ◽  
Rigid Polyurethane Foams ◽  
Blowing Agent

HFC-365mfc: A Versatile Blowing Agent for Rigid Polyurethane Foams

1999 ◽  
Vol 35 (4) ◽  
pp. 328-344 ◽  
Author(s):  
L. Zipfel ◽  
K. Börner ◽  
W Krücke ◽  
P Barthélemy ◽  
P Dournel
Keyword(s):  
Polyurethane Foams ◽  
Rigid Polyurethane Foams ◽  
Blowing Agent
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