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(2000)
Environmental Protection Agency (www.epa.gov)
G. Caprioli, R. Bernasconi, A. Hamilton, M. Liefferinge, S. Barettini, A. Cappella (1999)
A Novel Nucleating Agent-Based Technology Resulting in Low Density Rigid Polyurethane Foam for Appliances with Reduced Energy ConsumptionJournal of Cellular Plastics, 35
Hideaki Yoshimura, Y. Tamano, S. Okuzono, D. Lowe (1996)
An Insight into the Characteristics of a Nucleation Catalyst in CFC-Free Rigid Foam SystemsJournal of Cellular Plastics, 32
Yonglai Yang, M. Gupta, K. Dudley, R. Lawrence (2005)
Conductive Carbon Nanofiber–Polymer Foam StructuresAdvanced Materials, 17
Suk-Hwan Kang, D. Ku, Jung-Hun Lim, Yunyan Yang, N. Kwak, T. Hwang (2005)
Characterization for pyrolysis of thermoplastic polyurethane by thermal analysesMacromolecular Research, 13
G. Oertel (1993)
Polyurethane Handbook
P. Ni, Jing Li, J. Suo, Shuben Li (2004)
Novel polyether polyurethane/clay nanocomposites synthesized with organic-modified montmorillonite as chain extendersJournal of Applied Polymer Science, 94
Jongpil Yun, H. Yoo, H. Kim (2007)
Preparation and properties of waterborne polyurethane-urea/poly(vinyl alcohol) blends for high water vapor permeable coating materialsMacromolecular Research, 15
Y. Kim, S. Choi, Ji Kim, M. Han, W. Kim, K. Bang (2007)
Effects of organoclay on the thermal insulating properties of rigid polyurethane poams blown by environmentally friendly blowing agentsMacromolecular Research, 15
N. Sarıer, E. Onder (2007)
Thermal characteristics of polyurethane foams incorporated with phase change materialsThermochimica Acta, 454
B. Kim, Jang Seo, H. Jeong (2003)
Properties of waterborne polyurethane/nanosilica compositeMacromolecular Research, 11
D. Klempner, Vahid Sendijareviʹc, R. Aseeva (2004)
Handbook of polymeric foams and foam technology.
H. Park, J. Bae, K. Park, T. Ooya, N. Yui, Jun-Hyeog Jang, D. Han, Jung-Woog Shin (2006)
Surface modification of polyurethane using sulfonated PEG crafted polyrotaxane for improved biocompatibilityMacromolecular Research, 14
J. H. Saunders K. C. Frisch (1976)
K. C. Frisch, J. H. Saunders, and M. Dekker,Plastic Foams, New York, 1976.
Shang Chen, Zheng-Jiang Hua, Z. Fang, G. Qi (2004)
Copolymerization of carbon dioxide and propylene oxide with highly effective zinc hexacyanocobaltate(III)-based coordination catalystPolymer, 45
Kyungjik Yang, Xinglin Guo, W. Meng, J. Hyun, I. Kang, Y. Kim (2003)
Behavior of hepatocytes inoculated in gelatin-immobilized polyurethane foamMacromolecular Research, 11
W. Seo, Y. Sung, S. Kim, Yeongbeom Lee, K. Choe, S. Choe, J. Sung, W. Kim (2006)
Effects of ultrasound on the synthesis and properties of polyurethane foam/clay nanocompositesJournal of Applied Polymer Science, 102
W. Seo, Y. Sung, S. Han, Y. Kim, O. Ryu, H. Lee, W. Kim (2006)
Synthesis and properties of polyurethane/clay nanocomposite by clay modified with polymeric methane diisocyanateJournal of Applied Polymer Science, 101
M. Szycher (1999)
Szycher’s Handbook of Polyurethanes
Hyunchul Jung, S. Kang, W. Kim, Yeongbeom Lee, K. Choe, S. Hong, S. Kim (2000)
Properties of crosslinked polyurethanes synthesized from 4,4′-diphenylmethane diisocyanate and polyester polyolJournal of Applied Polymer Science, 78
A. Raghu, H. Jeong, J. Kim, Yu Lee, Y. Cho, Kiran Sirsalmath (2008)
Synthesis and characterization of novel polyurethanes based on 4-{(4-hydroxyphenyl)iminomethyl}phenolMacromolecular Research, 16
M. H. Randal (1999)
Silicone Surfactants
J. Grimminger, K. Muha (1993)
Silicone Surfactants for Pentane Blown Rigid FoamJournal of Cellular Plastics, 31
C. Sung, Kyung Lee, K. Lee, Seung Oh, J. Kim, Min Kim, H. Jeong (2007)
Sound damping of a polyurethane foam nanocompositeMacromolecular Research, 15
B. Min, S. Ko (2007)
Characterization of segmented block Copolyurethane network based on glycidyl azide polymer and polycaprolactoneMacromolecular Research, 15
M. Rutnakornpituk, Paradorn Ngamdee, P. Phinyocheep (2005)
Synthesis, characterization and properties of chitosan modified with poly(ethylene glycol)–polydimethylsiloxane amphiphilic block copolymersPolymer, 46
Xia Cao, L. Lee, Tomy Widya, C. Macosko (2005)
Polyurethane/clay nanocomposites foams: processing, structure and propertiesPolymer, 46
S. Subramani, Jung Lee, Jung Kim, I. Cheong (2005)
One-pack cross-linkable waterborne methyl ethyl ketoxime-blocked polyurethane/clay nanocomposite dispersionsMacromolecular Research, 13
P. Gennes (1999)
The Physics Of Foams
X.D Zhang, C.W Macosko, H.T Davis, A.D Nikolov, D. Wasan (1999)
Role of Silicone Surfactant in Flexible Polyurethane Foam.Journal of colloid and interface science, 215 2
M. F. Ashby (1997)
Cellular Solids
D. Cha, K. Kim, G. Chu, H. Kim, Keunhyung Lee, N. Bhattarai (2006)
Mechanical behaviors and characterization of electrospun polysulfone/polyurethane blend nonwovensMacromolecular Research, 14
W. Seo, Hyunchul Jung, J. Hyun, W. Kim, Yeongbeom Lee, K. Choe, S. Kim (2003)
Mechanical, morphological, and thermal properties of rigid polyurethane foams blown by distilled waterJournal of Applied Polymer Science, 90
Abstract Rigid polyurethane foams (PUF)s were synthesized with environmentally friendly blowing agents such as a cyclopentane/distilled water (10.0/1.0, pphp) mixture and distilled water only for four different silicone surfactants having different silicone/polyether ratios. An attempt was made to reduce the thermal conductivities of the PUF samples by varying the concentration and the silicone/polyether ratio of the various silicone surfactants. The scanning electron microscopy (SEM) results indicated an optimum concentration of the silicone surfactant of about 1.5 to 2.5 phpp for various surfactants to reduce the cell size and lower the thermal conductivity. The silicone surfactant having a higher silicone/polymer ratio showed a smaller cell size and, therefore, demonstrated the lower thermal conductivity of the PUF samples. From the relation between the thermal conductivity and the cell size of the PUF samples, the smaller cell size improved the thermal insulation property of the rigid PUF for both the PUF samples blown by the cyclopentane/distilled water (10.0/1.0, pphp) mixture and distilled water only. If the blowing agent is fixed, then the cell size is an important factor to decrease the thermal conductivity of the PUF samples. These results indicated that rigid PUF samples having lower thermal conductivity can be obtained by choosing a silicone surfactant containing a higher silicone/polyether ratio, as well as an optimum content of the surfactant.
"Macromolecular Research" – Springer Journals
Published: Jan 1, 2009
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