Urethane foams from animal fats: VIII. Properties of foams from epoxidized tallow trimethylolpropane polyols

Saggese, E. J.; Zubillaga, M. P.; Bilyk, Alexander; Riser, George R.; Wrigley, A. N.

doi:10.1007/bf02639720

Cited by 13 publications

(4 citation statements)

References 7 publications

(7 reference statements)

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“…Crosslinker is an essential component for vegetable oil–based foam systems since it brings in the required rigidity. A number of crosslinkers have been used, including sorbitol, trimethanolylpropane (TMP), triethanolamine, tripropanolamine, and glycerin 9, 10, 13–18. We tested three crosslinkers: triethanolamine, TMP, and glycerin.…”

Section: Resultsmentioning

confidence: 99%

Rigid polyurethane foams based on soybean oil

Guo

Javni

Petrovìć

2000

J. Appl. Polym. Sci.

319

171

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Both HCFC-and pentane-blown rigid polyurethane foams have been prepared from polyols derived from soybean oil. The effect of formulation variables on foam properties was studied by altering the types and amounts of catalyst, surfactant, water, crosslinker, blowing agent, and isocyanate, respectively. While compressive strength of the soy foams is optimal at 2 pph of surfactant B-8404, it increases with increasing the amount of water, glycerin, and isocyanate. It also increases linearly with foam density. These foams were found to have comparable mechanical and thermoinsulating properties to foams of petrochemical origin. A comparison in the thermal and thermooxidative behaviors of soy-and PPO-based foams revealed that the former is more stable toward both thermal degradation and thermal oxidation. The lack of ether linkages in the soy-based rather than in PPO-based polyols is thought to be the origin of improved thermal and thermo-oxidative stabilities of soy-based foams.

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Section: Resultsmentioning

confidence: 99%

Rigid polyurethane foams based on soybean oil

Guo

Javni

Petrovìć

2000

J. Appl. Polym. Sci.

319

171

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“…These soy-polyols have interesting properties and applications in a variety of fields. Preparation of polyols from vegetable oils has been extensively reported in the literature [10][11][12][13][14][15][16][17][18][19]. Guo et al [20] reported the preparation of soy-polyols by the hydrogenation of hydroformylated soybean oil and studied the physical and mechanical properties of polyurethanes based on these soypolyols.…”

Section: Introductionmentioning

confidence: 99%

Hydrolysis of Epoxidized Soybean Oil in the Presence of Phosphoric Acid

Guo

Hardesty

Mannari

et al. 2007

J Americ Oil Chem Soc

120

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Ring-opening hydrolysis of epoxidized soybean oil in the presence of phosphoric acid was studied under varying experimental conditions. The influence of type and amount of solvents, phosphoric acid content and water content on the rate of ring-opening reactions and the characteristics of the derived products were studied. The soy-polyols prepared were characterized by determination of hydroxyl content, viscosity measurements, determination of average molecular weight and polydispersity index (GPC). The structural confirmation was done by FT-IR and 1 H-NMR spectroscopy. The study shows that under the reaction conditions employed, a substantial degree of oligomerization due to oxirane-oxirane, and/or oxiranehydroxyl reaction takes place. It is possible to synthesize soy-polyols having varying hydroxyl content and phosphate-ester functionality by controlling the type and amount of polar solvent and phosphoric acid content.

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“…[1][2][3][4][5][6][7][8][9][10][11][12][13][14] However, polyols prepared from vegetable oils intrinsically have a very heterogeneous structure arising from the variation in structure of vegetable oils. The structure of soybean oil varies depending on the type of soybean, weather conditions, type of soil, and so forth.…”

Section: Introductionmentioning

confidence: 99%