Reinstating Structural Stability of Castor Oil based Flexible Polyurethane Foam using Glycerol

2020 ◽  
Vol 5 (13) ◽  
pp. 3959-3964
Author(s):  
Aabid Hussain Shaik ◽  
Rajan Jain ◽  
Sindhu Manchikanti ◽  
Karthik Krishnamoorthy ◽  
Dharmendra Kumar Bal ◽  
...  
Keyword(s):  
Polyurethane Foam ◽  
Structural Stability ◽  
Castor Oil ◽  
Flexible Polyurethane Foam ◽  
Flexible Polyurethane

Preparation, characterization, and properties of castor oil-based flexible polyurethane/Cloisite 30B nanocomposites foam

2017 ◽  
Vol 52 (4) ◽  
pp. 531-542 ◽  
Author(s):  
Siva Sankar Panda ◽  
Sushanta K Samal ◽  
Smita Mohanty ◽  
Sanjay K Nayak
Keyword(s):  
Polyurethane Foam ◽  
Castor Oil ◽  
Soft Segment ◽  
Weight Ratio ◽  
Nanocomposite Foams ◽  
Cloisite 30B ◽  
Flexible Polyurethane Foam ◽  
Nanocomposite Foam ◽  
Flexible Polyurethane ◽  
The Impact

The present study represents the synthesis of flexible polyurethane nanocomposite foam using Cloisite 30B nanoclays varying at 1, 2, and 3 wt%. The polyurethane nanocomposite foam formulated with 50:50 weight ratio of synthetic polyether polyol and renewable resource-based castor oil. The progress of isocyanate reaction and formation of bidentate urea through H-bonding in the polymeric matrix phase were confirmed from Fourier transform infrared analysis. The surface morphology of the nanocomposite foams was examined by scanning electron microscopy and X-ray diffraction analysis. Polyurethane nanocomposite foam displayed exfoliated structures at 3 wt% Cloisite 30B. The thermal and mechanical properties were also studied to report the impact of Cloisite 30B in biobased flexible polyurethane foam. Enhanced thermogravimetric outcome signified higher thermal stability of polyurethane nanocomposite foam as compared to polyurethane foam. Further, improvement of the soft segment glass transition temperature (Tg) confirmed the role of Cloisite 30B in the phase separation behavior between the hard segment and soft segment in nanocomposite foams. A significant enhancement in the mechanical strength with incorporation of a small amount of Cloisite 30B nanoclay to the flexible polyurethane foam allows it for various low cost applications.

An FT i.r. study of reaction kinetics and structure development in model flexible polyurethane foam systems

Polymer ◽  
1996 ◽  
Vol 37 (8) ◽  
pp. 1353-1361 ◽  
Author(s):  
Michael J. Elwell ◽  
Anthony J. Ryan ◽  
Henri J.M. Grünbauer ◽  
Henry C. Van Lieshout
Keyword(s):  
Reaction Kinetics ◽  
Polyurethane Foam ◽  
Structure Development ◽  
Flexible Polyurethane Foam ◽  
Flexible Polyurethane
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