Chain Extender on Property Relationships of Polyurethane Derived from Soybean Oil

Polyurethane foams (PUF) has been prepared from vegetable; soybean based polyols. They were characterized into flexible and semi rigid polyurethane foam. This work is directed to production of flexible polyurethane foams by a process involving the reaction of mixture of 2,4- and 2,6-Toluene di Isocyanate isomers, with portion of to blends of soy polyols with petroleum polyol in the presence of other ingredients such as blowing agents, silicone surfactants and accelerating agents. Additon of chain extender improves the property then further decreases the properties on further addition of the same. The objective of this work was to study the effect of chain extender and role of phosphoric acid catalyst to the final properties and correlate the morphology image with mechanical properties of these foams.




References:
[1] E. Yamazaki et. al., Polym J, 29, 1997, p.811
[2] T.L. Wang T.H Hsiech, Polym J, 28, 1996, p.839
[3] N. Jiratumnukul, Van de Mark MR, Preparation of glycol esters of
soybean oil fatty acids and their potential as coalescent aids in paint
formulations. J Am Oil Chem Soc 77, 2000, pp.691-697
[4] Jira Sato, Peloggia SH, Hunt T, Schwarzer J, Bueno RC, Lovald RA,
Process for the preparation of polyamides. US Patent 6:011-131, 2000
[5] S.Z.Erhan, Bagby MO, Polymerization of vegetable-oil and their uses in
printing inks. J Am Oil Chem Soc 71,1994, pp.1223-1226
[6] W.S Gibbons, Kusy RP, Effects of plasticization on the dielectric
properties of polyvinyl chloride) membranes. Thermochim Acta 284,
1996, pp.21-45
[7] Y. Zhang, Hourston DJ, Rigid interpenetrating polymer network foams
prepared from rosin-based polyurethane and epoxy resin. J Appl
Polym Sci 69, 1998, pp.271-281
[8] Thirumail et.al., Mechanical, morphological and thermal properties of
rigid polyurethane foam: effect of chain extender, polyol and blowing
agent, Cellular Polymers, vol. 28, no 2, 2008, pp. 145-158
[9] R.E. Harry-¶ÇÇ▓¶Çé¶ÇüĶÇüÿ¶Çüò¶Çüÿ¶ÇÇŶÇÇâR.A. Holser, T.P Abbott, D. Weisleder D. Synthesis
and Characterization of Polyhydroxy Triglycerides from Milkweed Oil.
Ind. Crop. Prod., 15, 2002, pp.51¶Çé▒58
[10] R.E. Harry-¶ÇÇ▓¶Çé¶ÇüĶÇüÿ¶Çüò¶Çüÿ¶ÇÇŶÇÇâ C.J. Carriere, Synthesis, Rheological
Characterization, and Constitutive Modeling of Polyhydroxy
Triglycerides derived from Milkweed Oil. J. Agric. Food Chem.,50,
2002, pp. 3214¶Çé▒3221
[11] E. Sharmin, S.M. Ashraf, S. Ahmad, Synthesis, Characterization,
Antibacterial, and Corrosion Protective Properties of Epoxies, Epoxypolyols,
and Epoxy-polyurethane Coatings from Linseed and Pongamia
glabra Seed Oils. Int. J. Biol. Macromol, 40, 2007, pp. 407¶Çé▒422.
[12] H.P. Zhao, J.F. Zhang, S.X Susan, D.H. Hua, Synthesis and Properties
of Crosslinked Polymers from Functionalized Triglycerides. J. Appl.
Polym. Sci., 110, 2008, pp. 647¶Çé▒656
[13] Y. Guo, J.H. Hardesty, V.M. Mannari, J.J.L Massingill, Hydrolysis of
Epoxidized Soybean Oil in the Presence of Phosphoric Acid. J. Am. Oil
Chem. Soc., 84, 2007, pp. 929¶Çé▒935
[14] A. Guo, Y. Cho, Z.S. Petrovic, Structure and Properties of Halogenated
and Non-halogenated Soy-based Polyols. J. Polym. Sci Part A Polym.
Chem., 38, 2000, pp. 3900¶Çé▒3910
[15] B.K.Sharma, A. Adhvaryu, S.Z. Erhnan, Synthesis of Hydroxy Thio
ether Derivatives of Vegetable Oil. J. Agric. Food Chem., 54, 2006,
pp.9866¶Çé▒9872
[16] Korshak et.al., Reaction of cyanurates with the epoxide ring. Russ chem.
Bull 32, 1983, pp. 2135-2138
[17] N.J. Mills, Polymer foam Handbook, Elsevier Ltd, New York, 2007.
[18] E.F. Flora, Silicone on Blending Vegetal Petrochemical Based
Polyurethane, Journal of World Academy Science Engineering and
Technology (WASET), p ISSN 2010-376x, e ISSN 2010-3778,
WASET, Mei, 65:2010, pp. 349-352
[19] W.J. Seo W.J. et. al., Properties of water blown rigid polyurethane foams
with reactivity of raw materials, J. Apply Polymer Science, 93, 2004,
p.2334
[20] H.J. Seo, J. Apply Polymer Science 106, 2007, p. 1014
[21] M.Thirumal, Effect of foam density on the properties of water blown
rigid polyurethane foam, J.Appl. Polymer Science, 108, 2008, pp.1810