Production and characterization of polyurethane castor oil (Ricinus communis) foam for nautical fender

Trovati, Graziella; Suman, Marcos Vinicius Natali; Sanches, Edgard Aparecido; Campelo, Pedro Henrique; Neto, Romeu Bessan; Neto, Salvador Claro; Trovati, Luiz Roberto

doi:10.1016/j.polymertesting.2018.11.010

Cited by 29 publications

(9 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The application of PUs is vast, the study by Trovati et al applied PU foams that were closed cells in the manufacturing of nautical fenders. The density of the produced foams was 0.5 g cm −3 , giving the fender floating ability, and it was found to be thermally stable at 187°C.…”

Section: Applicationsmentioning

confidence: 99%

Development of castor oil–based polymers: A review

Nekhavhambe

Mukaya

Nkazi

2019

J Adv Manuf & Process

View full text Add to dashboard Cite

Vegetable oils are a vital commodity in the industry because of the persisting challenges encountered with the utilization of fossil fuels, specifically petroleum. Petroleum-based polymers are a part of our day to day life, thus it is of importance to find sustainable ways to produce such indispensable commodities. Although various vegetable oils have been utilized to produce polymers, castor oil surpasses other vegetable oils, as it does not compete with the food industry as it is nonedible and as it is a natural polyol and has been used for polyurethane synthesis. Because of the versatility of castor oil chemistry, polymers such as epoxies, polyamides, and polyesters can be synthesized. The review focuses on the importance of castor oil toward the synthesis of various polymers and their versatile applications. K E Y W O R D Scastor oil, castor oil chemistry, epoxy nanocomposite, polyester, polyurethane

show abstract

Section: Applicationsmentioning

confidence: 99%

Development of castor oil–based polymers: A review

Nekhavhambe

Mukaya

Nkazi

2019

J Adv Manuf & Process

View full text Add to dashboard Cite

show abstract

“…Therefore, non-edible vegetable oil such as Castor oil (Ricinus communis L.) could be used as alternate source, as this oil is not suitable for consumption because it contains ricin and ricinin (two highly toxic proteins). [5][6][7][8][9][10]. Castor oil also contains 80-90% ricinoleic acid that can be converted into hydrocarbon [9].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Mesoporous Carbon from Merbau Sawdust as a Nickel Metal Catalyst Support for Castor Oil Hydrocracking

Trisunaryanti

Triyono

Purwono

et al. 2022

Bull. Chem. React. Eng. Catal.

View full text Add to dashboard Cite

Synthesis of mesoporous carbon from merbau sawdust with H2O2 as activator using reflux method followed by carbonization at 800 °C (RC800) had been carried out. This research is aiming to produce effective pathway to synthesize effective nickel-mesoporous carbon catalyst. The nickel metal was impregnated on the mesoporous carbon by wet impregnation using the salt precursor of Ni(NO3)2∙6H2O. The results showed that carbon RC800 and C800 had a specific surface area of 135.18 and 182.48 m2/g. Specific surface area of Ni/RC800 and Ni/C800 catalyst were 41.31 and 7.15 m2/g, respectively. The metal content in Ni/RC800 and Ni/C800 catalyst were 0.83 and 0.92 wt%, respectively. Ni/RC800 catalyst had the highest acidity (7.64 mmol/g) compared to Ni/C800 catalyst (6.99 mmol/g), RC800 (97.43 mmol/g), and C800 (6.17 mmol/g). The Ni/RC800 catalyst has the highest activity with the liquid product conversion of 66.01 wt%. Its selectivity towards gasoline fraction, diesel fraction, alcohol, and organic was 8.06, 1.17, 2.61, and 54.13%, respectively. Copyright © 2022 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).

show abstract

“…It has three types of reactive functional group: the hydroxyl group which is attached to the 12th carbon; unsaturation (between the 9th and 10th carbon); and the carbonyl group, found on the 1st carbon. These features characterize the triglyceride as a trifunctional polyester [23][24][25]. Polyurethane foams are commonly synthesized by the reaction of isocyanates with polyols in the presence of water as a blowing agent, resulting in formation of carbon dioxide (CO 2 ), which can give a closed-cell or open-cell internal foam structure [26][27][28].…”

Section: Introductionmentioning

confidence: 99%

Fabrication and Characterization of Microcellular Polyurethane Sisal Biocomposites

Abdel-Hamid¹,

Al-Qabandi²,

N.A.S.

et al. 2019

Molecules

View full text Add to dashboard Cite

In this study, microcellular polyurethane (PU)-natural fiber (NF) biocomposites were fabricated. Polyurethanes based on castor oil and PMDI were synthesized with varying volume ratios of sisal fiber. The effect of natural fiber treatment using water and alkaline solution (1.5% NaOH) and load effect were investigated. Biocomposites were mechanically and physically investigated using tensile, viscoelasticity, and water absorption tests. The interfacial adhesion between PU and sisal fiber was studied using SEM. Short NF loads (3%) showed a significant improvement in the mechanical properties of the PU-sisal composite such as modulus of elasticity, yield and tensile strength up to 133%, 14.35 % and 36.7% respectively. Viscoelastic measurements showed that the composites exhibit an elastic trend as the real compliance (J’) values were higher than those of the imaginary compliance (J’’). Increasing NF loads resulted in a decrease of J’. Applying variable temperatures (120–80 °C) caused an increase in the stiffness at different frequencies.

show abstract

Production and characterization of polyurethane castor oil (Ricinus communis) foam for nautical fender

Cited by 29 publications

References 23 publications

Development of castor oil–based polymers: A review

Development of castor oil–based polymers: A review

Synthesis of Mesoporous Carbon from Merbau Sawdust as a Nickel Metal Catalyst Support for Castor Oil Hydrocracking

Fabrication and Characterization of Microcellular Polyurethane Sisal Biocomposites

Contact Info

Product

Resources

About