Extrusion of Polypropylene/Clay Nanocomposite Foams

2013 ◽  
pp. 73-90 ◽  
Keyword(s):  
Nanocomposite Foams

Controlling bubble density in MWNT/polymer nanocomposite foams by MWNT surface modification

2012 ◽  
Vol 72 (2) ◽  
pp. 190-196 ◽  
Author(s):  
Limeng Chen ◽  
Behic K. Goren ◽  
Rahmi Ozisik ◽  
Linda S. Schadler
Keyword(s):  
Surface Modification ◽  
Polymer Nanocomposite ◽  
Nanocomposite Foams ◽  
Bubble Density

Synthetic Aliphatic Biodegradable Poly(Butylene Succinate)/MWNT Nanocomposite Foams and Their Physical Characteristics

2011 ◽  
Vol 50 (6) ◽  
pp. 1171-1184 ◽  
Author(s):  
Sang Kyun Lim ◽  
Seok In Lee ◽  
Suk Goo Jang ◽  
Kwang Hee Lee ◽  
Hyoung Jin Choi ◽  
...  
Keyword(s):  
Physical Characteristics ◽  
Butylene Succinate ◽  
Nanocomposite Foams ◽  
Biodegradable Poly

Bio-based Polyurethane-clay Nanocomposite Foams: Systheses and Properties

2009 ◽  
Vol 1188 ◽  
Author(s):  
Min Liu ◽  
Zoran S. Petrovic ◽  
Yijin Xu
Keyword(s):  
Thermal Conductivity ◽  
Thermal Insulation ◽  
Cell Structure ◽  
Polyurethane Foams ◽  
Mechanical And Thermal Properties ◽  
Cell Content ◽  
Modified Clay ◽  
Rigid Polyurethane Foams ◽  
Nanocomposite Foams ◽  
Organically Modified

AbstractStarting from a bio-based polyol through modification of soybean oil, BIOH™ X-210, two series of bio-based polyurethanes-clay nanocomposite foams have been prepared. The effects of organically-modified clay types and loadings on foam morphology, cell structure, and the mechanical and thermal properties of these bio-based polyurethanes-clay nanocomposite foams have been studied with optical microscopy, compression test, thermal conductivity, DMA and TGA characterization. Density of nanocomposite foams decreases with the increase of clay loadings, while reduced 10% compressive stress and yield stress keep constant up to 2.5% clay loading in polyol. The friability of rigid polyurethane-clay nanocomposite foams is high than that of foam without clay, and the friability for nanofoams from Cloisite® 10A is higher than that from 30B at the same clay loadings. The incorporation of clay nanoplatelets decreases the cell size in nanocomposite foams, meanwhile increases the cell density; which would be helpful in terms of improving thermal insulation properties. All the nanocomposite foams were characterized by increased closed cell content compared with the control foam from X-210 without clay, suggesting the potential to improve thermal insulation of rigid polyurethane foams by utilizing organically modified clay. Incorporation of clay into rigid polyurethane foams results in the increase in glass transition temperature: the Tg increased from 186 to 197 to 204 °C when 30B concentration in X-210 increased from 0 to 0.5 to 2.5%, respectively. Even though the thermal conductivity of nanocomposite foams from 30B is lower than or equal to that of rigid polyurethane control foam from X-210, thermal conductivity of nanocomposite foams from 10A is higher than that of control at all 10A concentrations. The reason for this abnormal phenomenon is not clear at this moment; investigation on this is on progress.

Effects of environmental aging on physical properties of aromatic thermosetting copolyester matrix neat and nanocomposite foams

2018 ◽  
Vol 147 ◽  
pp. 49-56 ◽  
Author(s):  
Mete Bakir ◽  
Christine N. Henderson ◽  
Jacob L. Meyer ◽  
Junho Oh ◽  
Nenad Miljkovic ◽  
...  
Keyword(s):  
Physical Properties ◽  
Nanocomposite Foams ◽  
Environmental Aging

Study of the cellular structure heterogeneity and anisotropy of polypropylene and polypropylene nanocomposite foams

2009 ◽  
Vol 49 (12) ◽  
pp. 2400-2413 ◽  
Author(s):  
Marcelo Antunes ◽  
Jose Ignacio Velasco ◽  
Vera Realinho ◽  
Eusebio Solórzano
Keyword(s):  
Cellular Structure ◽  
Nanocomposite Foams ◽  
Structure Heterogeneity

Highly compressible, heat-insulating and self-extinguishing cellulose nanofiber/aramid nanofiber nanocomposite foams

2021 ◽  
Vol 261 ◽  
pp. 117837
Author(s):  
Jiaoyang Li ◽  
Zhaoqing Lu ◽  
Fan Xie ◽  
Jizhen Huang ◽  
Doudou Ning ◽  
...  
Keyword(s):  
Cellulose Nanofiber ◽  
Nanocomposite Foams

Processing of microcellular nanocomposite foams by using a supercritical fluid

2004 ◽  
Vol 5 (2) ◽  
pp. 160-169 ◽  
Author(s):  
Dongho Wee ◽  
Dong Gi Seong ◽  
Jae Ryoun Youn
Keyword(s):  
Supercritical Fluid ◽  
Nanocomposite Foams
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