scholarly journals Polyurethane foams containing renewable castor oil replacement

2014 ◽  
Author(s):  
Rui Xing
Keyword(s):  
Castor Oil ◽  
Polyurethane Foams

New biocomposites based on castor oil polyurethane foams and ionic liquids for CO 2 capture

2017 ◽  
Vol 452 ◽  
pp. 103-112 ◽  
Author(s):  
Marisol Fernández Rojas ◽  
Liliana Pacheco Miranda ◽  
Andrea Martinez Ramirez ◽  
Karina Pradilla Quintero ◽  
Franciele Bernard ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Castor Oil ◽  
Polyurethane Foams

Polyurethane Foams Obtained from Castor Oil-based Polyol and Filled with Wood Flour

2009 ◽  
Vol 43 (25) ◽  
pp. 3057-3072 ◽  
Author(s):  
M.A. Mosiewicki ◽  
G.A. Dell'Arciprete ◽  
M.I. Aranguren ◽  
N.E. Marcovich
Keyword(s):  
Castor Oil ◽  
Wood Flour ◽  
Polyurethane Foams

scholarly journals Intumescent Phosphorus and Triazole-Based Flame-Retardant Polyurethane Foams from Castor Oil

ACS Omega ◽  
2019 ◽  
Vol 4 (1) ◽  
pp. 1086-1094 ◽  
Author(s):  
Kesavarao Sykam ◽  
Kiran Kumar Reddy Meka ◽  
Shailaja Donempudi
Keyword(s):  
Flame Retardant ◽  
Castor Oil ◽  
Polyurethane Foams

Foam stability and polymer phase morphology of flexible polyurethane foams synthesized from castor oil

2014 ◽  
Vol 131 (17) ◽  
pp. n/a-n/a ◽  
Author(s):  
Chandan Sharma ◽  
Sanjay Kumar ◽  
A. Raman Unni ◽  
Vinod K. Aswal ◽  
Sangram K. Rath ◽  
...  
Keyword(s):  
Castor Oil ◽  
Foam Stability ◽  
Polyurethane Foams ◽  
Phase Morphology ◽  
Polymer Phase ◽  
Flexible Polyurethane

Polyurethane Foams Based on Biopolyols from Castor Oil and Glycerol

2017 ◽  
Vol 26 (6) ◽  
pp. 2467-2475 ◽  
Author(s):  
Daniela Bresolin ◽  
Alexsandra Valério ◽  
Débora de Oliveira ◽  
Marcelo Kaminski Lenzi ◽  
Claudia Sayer ◽  
...  
Keyword(s):  
Castor Oil ◽  
Polyurethane Foams

scholarly journals Polyurethane Foams for Thermal Insulation Uses Produced from Castor Oil and Crude Glycerol Biopolyols

2017 ◽  
Author(s):  
Camila S. Carriço ◽  
Thaís Fraga ◽  
Vagner E. Carvalho ◽  
Vânya M. D. Pasa
Keyword(s):  
Thermal Conductivity ◽  
Compressive Strength ◽  
Young’S Modulus ◽  
Thermal Insulation ◽  
Castor Oil ◽  
Crude Glycerol ◽  
Young's Modulus ◽  
Polyurethane Foams ◽  
Co2 Production ◽  
Blowing Agent

Rigid polyurethane foams were synthesized using a renewable polyol from the simple physical mixture of castor oil and crude glycerol. The effect of the catalyst and blowing agent in the foams properties was evaluated. The use of physical blowing agent (cyclopentane and n-pentane) allowed obtaining foams with smaller cells in comparison with the foams produced with a chemical blowing agent (water). The increase of water content caused a decrease of density, thermal conductivity, compressive strength and Young's modulus, which indicates that the increment of CO2 production contributes to the formation of larger cells. Higher amount of catalyst in the foam formulations caused a slight density decrease and an increase small significance of thermal conductivity, compressive strength and Young's modulus values. These green foams presented properties that indicate a great potential to be used as thermal insulation, as density (23 - 41 kg m-3), thermal conductivity (0.0128 – 0.0207 W m-1 K-1), compressive strength (45 - 188 kPa) and Young's modulus (3 - 28 kPa). These biofoams are also environmental friendly alternatives and can aggregate revenue to biodiesel industry, contributing for reduction of this fuel prices.

Efficiency of castor oil–based polyurethane foams for oil sorption S10 and S500: Influence of porous size and statistical analysis

2021 ◽  
pp. 096739112110403
Author(s):  
Fillip C Alves ◽  
Vanessa F dos Santos ◽  
Francisco M Monticeli ◽  
Heitor Ornaghi ◽  
Hernane da Silva Barud ◽  
...  
Keyword(s):  
Sorption Capacity ◽  
Exposure Time ◽  
Castor Oil ◽  
Pore Diameter ◽  
Polyurethane Foams ◽  
Void Content ◽  
Oil Viscosity ◽  
Oil Sorption ◽  
Lower Viscosity ◽  
Mass Proportion

This study evaluates the efficiency of castor oil–based polyurethane foams for oil sorption S10 and S500, focusing on the influence of the pores’ size. Different foams were produced by varying the polyol: isocyanate ratio (1:0.3; 1:0.5; 1:1.0; 1:1.5; and 1:2.0). The physicochemical properties, morphology, density, and Hg porosity were determined. The sorption capacity was influenced by exposure time, oil viscosity, and concentration of the reagents, considering variations in the hydrophobicity, void content, and morphology. The results showed that the foam produced at an in the same mass proportion (PUC) has a higher sorption capacity in exposure time from 25 to 40 h due to higher void content and larger pore diameter size. It was observed that the lower viscosity of S10 diesel contributes to the higher sorption efficiency compared to S500 one. The Taguchi method corroborated the mentioned results, indicating a higher sorption trend by varying the reagent concentration and exposure times.

scholarly journals Polyurethane Foams for Thermal Insulation Uses Produced from Castor Oil and Crude Glycerol Biopolyols

Molecules ◽  
2017 ◽  
Vol 22 (7) ◽  
pp. 1091 ◽  
Author(s):  
Camila Carriço ◽  
Thaís Fraga ◽  
Vagner Carvalho ◽  
Vânya Pasa
Keyword(s):  
Thermal Insulation ◽  
Castor Oil ◽  
Crude Glycerol ◽  
Polyurethane Foams
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