Effects of Low Castor Oil on Mechanical Properties of Polyurethane Foams

Dalen, M. B.

doi:10.9734/bjast/2014/7396

Cited by 4 publications

(1 citation statement)

References 4 publications

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“…Kaolin filled CPO exhibits lower values up to 10 g compared to kaolin filled PPO, because PPO is denser than CPO. This agrees with the report by Ikeh (1991) that, foam density is a rating applied to PU which may be based in part on the chemical composition of polyols and in part on the additives such as fillers [12]. However, at higher values above 10 g, density values show little or no significant differences between CaCO 3 filled PPO and kaolin filled CPO and PPO as a result of molar ratio compatibility [13].…”

Section: Determination Of % Compression Set [11]supporting

confidence: 90%

Effects of CaCO3 and Kaolin Filler Loadings on Some Mechanical Properties of Poly Urethane Foams

Dalen

Mador

2017

IRJPAC

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In Nigeria, the foam industries basically use CaCO 3 as filler in polyurethane (PU) foam manufacture. This has contributed to the high importation of this mineral, thereby, increasing dependency on imported goods. It is for this reason that, kaolin, a clay deposit commonly found on the upper Plateau in Central Nigeria is utilized as a potential filler in replacement or as a supplement for CaCO 3 .Various masses (0,2,4,6,8,10,12,14, and 16 g) of the fillers (CaCO 3 or kaolin) were used in curing of PU foams and mechanical properties such as density, tensile strength, elongation at break, creep recovery and compression set were determined. Tensile strength values for CaCO 3 and kaolin filled conventional polymer (CPO) are far higher than for CaCO 3 and kaolin filled polymer polyol (PPO), generally. However, kaolin filled CPO foam display higher peaks at 2 g and 4 g compared to CaCO 3 filled CPO within the same range. Similarly, CaCO 3 filled CPO foams show higher peaks between 6 g and 12 g compared to kaolin filled CPO within the same concentration which seems to suggest that CaCO 3 exhibits better filler acceptance (compatibility) at higher concentration to a limiting value. In the same vein, kaolin filled PPO foams exhibit tensile strength properties higher than CaCO 3 filled PPO within the same concentration. Creep recovery for kaolin filled CPO are far higher than those of PPO, demonstrating that kaolin

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Section: Determination Of % Compression Set [11]supporting

confidence: 90%

Effects of CaCO3 and Kaolin Filler Loadings on Some Mechanical Properties of Poly Urethane Foams

Dalen

Mador

2017

IRJPAC

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Recycled-based thermosetting material obtained from the decomposition of polyurethane foam wastes with castor oil

Valle¹,

Aguirre²,

Aldás³

et al. 2020

J Mater Cycles Waste Manag

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Synthesis of Castor Oil based Pristine and Silver Nanoparticle Embedded Polyurethanes and their Characterization by Thermal and Antibacterial Activity Analysis for Biomedical Applications

Subramanian¹,

Somachandran²

2022

Asian J. Chem.

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Ecofriendly and sustainable pristine and silver nanoparticle embedded polyurethanes (PUs)/polyureas were synthesized by using the renewable castor oil as the main component, 1,6-hexane diol, poly(propylene glycol) and poly(propylene glycol)-bis-2-amino propyl ether as chain extenders, trimethylolpropane/or glycerol as cross linkers and toluene diisocyanate and dibutyltindilaurate as curator and catalyst, respectively. The prepared PUs were characterized for their thermal degradation by simultaneous TGA/DTA, structural features by FT-IR and antibacterial activity against Bacillus subtilis and E. coli. The onset degradation temperature (265-269 ºC) of the PUs was much lower than the onset weight loss temperature of castor oil. In air, the thermal degradation was exothermic at temperatures beyond 300 ºC. Unlike the pristine PUs, AgNPs embedded PUs displayed antibacterial activity and comparatively lower degradation temperature due to the catalytic effect of silver nanoparticles (AgNPs). These PUs may be used for various biomedical applications such as antibacterial foam, antibacterial scaffold, body implant, food packaging, wound dressing, etc.

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Effects of Low Castor Oil on Mechanical Properties of Polyurethane Foams

Cited by 4 publications

References 4 publications

Effects of CaCO3 and Kaolin Filler Loadings on Some Mechanical Properties of Poly Urethane Foams

Effects of CaCO3 and Kaolin Filler Loadings on Some Mechanical Properties of Poly Urethane Foams

Recycled-based thermosetting material obtained from the decomposition of polyurethane foam wastes with castor oil

Synthesis of Castor Oil based Pristine and Silver Nanoparticle Embedded Polyurethanes and their Characterization by Thermal and Antibacterial Activity Analysis for Biomedical Applications

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