Mechanical, morphological, and thermal properties of rigid polyurethane foams blown by distilled water

2003 ◽  
Vol 90 (1) ◽  
pp. 12-21 ◽  
Author(s):  
W. J. Seo ◽  
H. C. Jung ◽  
J. C. Hyun ◽  
W. N. Kim ◽  
Y.-B. Lee ◽  
...  
Keyword(s):  
Thermal Properties ◽  
Polyurethane Foams ◽  
Distilled Water ◽  
Rigid Polyurethane Foams

scholarly journals Composites of Rigid Polyurethane Foams Reinforced with POSS

Polymers ◽  
2019 ◽  
Vol 11 (2) ◽  
pp. 336 ◽  
Author(s):  
Sylwia Członka ◽  
Anna Strąkowska ◽  
Krzysztof Strzelec ◽  
Agnieszka Adamus-Włodarczyk ◽  
Agnė Kairytė ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Thermal Properties ◽  
Water Absorption ◽  
Viscoelastic Behavior ◽  
Physical And Mechanical Properties ◽  
Polyurethane Foams ◽  
Bending Test ◽  
Mechanical And Thermal Properties ◽  
Rigid Polyurethane Foams ◽  
Cell Shapes

Rigid polyurethane foams (RPUFs) were successfully modified with different weight ratios (0.5 wt%, 1.5 wt% and 5 wt%) of APIB-POSS and AEAPIB-POSS. The resulting foams were evaluated by their processing parameters, morphology (Scanning Electron Microscopy analysis, SEM), mechanical properties (compressive test, three-point bending test and impact strength), viscoelastic behavior (Dynamic Mechanical Analysis, DMA), thermal properties (Thermogravimetric Analysis, TGA, and thermal conductivity) and application properties (contact angle, water absorption and dimensional analysis). The results showed that the morphology of modified foams is significantly affected by the type of the filler and filler content, which resulted in inhomogeneous, irregular, large cell shapes and further affected the physical and mechanical properties of resulting materials. RPUFs modified with APIB-POSS represent better mechanical and thermal properties compared to the RPUFs modified with AEAPIB-POSS. The results showed that the best results were obtained for RPUFs modified with 0.5 wt% of APIB-POSS. For example, in comparison with unfilled foam, compositions modified with 0.5 wt% of APIB-POSS provide greater compression strength, better flexural strength and lower water absorption.

scholarly journals Anti-flammability, mechanical and thermal properties of bio-based rigid polyurethane foams with the addition of flame retardants

RSC Advances ◽  
2020 ◽  
Vol 10 (53) ◽  
pp. 32156-32161
Author(s):  
Guangyu Zhang ◽  
Xiaoqi Lin ◽  
Qinqin Zhang ◽  
Kaisen Jiang ◽  
Weisheng Chen ◽  
...  
Keyword(s):  
Thermal Properties ◽  
Flame Retardant ◽  
Flame Retardants ◽  
Polyurethane Foams ◽  
Mechanical And Thermal Properties ◽  
Rigid Polyurethane Foams ◽  
Flame Retardant Properties

Bio-based rigid polyurethane foams with the addition of flame retardant exhibit preferable flame-retardant properties.

Properties of rigid polyurethane foams blown by HCFC 141B and distilled water

2001 ◽  
Vol 81 (2) ◽  
pp. 486-493 ◽  
Author(s):  
H. C. Jung ◽  
S. C. Ryu ◽  
W. N. Kim ◽  
Y.-B. Lee ◽  
K. H. Choe ◽  
...  
Keyword(s):  
Polyurethane Foams ◽  
Distilled Water ◽  
Rigid Polyurethane Foams

Mechanical and Thermal Properties of High-Density Rigid Polyurethane Foams from Renewable Resources

2016 ◽  
Vol 4 (1) ◽  
pp. 86-100 ◽  
Author(s):  
M. Kirpluks ◽  
U. Cabulis ◽  
A. Ivdre ◽  
M. Kuranska ◽  
M. Zieleniewska ◽  
...  
Keyword(s):  
Thermal Properties ◽  
Renewable Resources ◽  
Polyurethane Foams ◽  
High Density ◽  
Mechanical And Thermal Properties ◽  
Rigid Polyurethane Foams
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