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Relevant bibliographies by topics / Modified castor oil

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Academic literature on the topic 'Modified castor oil'

Author: Grafiati

Published: 7 June 2025

Last updated: 2 August 2025

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Journal articles on the topic "Modified castor oil"

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Qian, Shanhua, Hongyue Wang, Chuanhui Huang, and Yongwu Zhao. "Experimental investigation on the tribological properties of modified carbon nanotubes as the additive in castor oil." Industrial Lubrication and Tribology 70, no. 3 (2018): 499–505. http://dx.doi.org/10.1108/ilt-05-2017-0138.

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Purpose This paper aims to modify carbon nanotubes with oleic acid, and to study the tribological properties of castor oil with modified carbon nanotubes additives. The proper additives are sought for the future engineering application of castor oil. Design/methodology/approach Tribological properties of the castor oils mixed with the modified carbon nanotubes of four mass percentages were investigated using a four-ball testing rig. Coefficient of friction and wear scar diameter were obtained in each test, and the mechanism of modified carbon nanotubes and castor oil was discussed. Findings Th

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Patel, B. P., H. S. Patel, and S. R. Patel. "Modified Castor Oil as an Epoxy Resin Curing Agent." E-Journal of Chemistry 1, no. 1 (2004): 11–16. http://dx.doi.org/10.1155/2004/412906.

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A castor oil, an agricultural product, is an unsaturated material. Hence the castor oil is brominated by bromine liquid. The brominated castor oil (BCO) was then reacted with excess of aliphatic diaminesviz; ethylene diamine, 1,3-propane diamine and 1,6-hexane diamine. The resultant amino functionalized castor oil (ACO) samples were then characterized by elemental analysis, IR spectral study and number of amino groups. All the three ACO samples were then employed for the curing of commercial Brominated epoxy resin. The curing of epoxy resin by ACO was monitored on differential scanning calorim

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Chen, Shuang Lian, Guang Xue Chen, and Jiang Wen Liu. "Study on an Aliphatic Polyurethane Laminating Adhesive Based on Castor Oil." Applied Mechanics and Materials 262 (December 2012): 551–56. http://dx.doi.org/10.4028/www.scientific.net/amm.262.551.

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The first component of the Polyurethane adhesive was prepared with polyester polyol, polyether polyol ,castor oil and isophorone diisocyanate. And this component was mixed with the castor oil and its modified production to prepare a two-component solvent-free aliphatic polyurethane laminating adhesive. In this study, the influences of the copolymerization ratio of polyester/ether on viscosity, heat resistance, adhesion strength and boiling resistance were studied, as well as influences of castor oil and its modified production on curing speed and adhesion strength. The results showed that when

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Choe, Yong-A., Su-Il Kim, Jong-Hwan Jang, and Kyong-Sik Ju. "Synthesis and characteristics of water-based, rosin-modified, polymerized oil based on dehydrated castor oil acid and zinc resinate." RSC Advances 15, no. 3 (2025): 1690–97. https://doi.org/10.1039/d4ra03350g.

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In this study, we synthesized a water-based, rosin-modified, polymerized oil (WRPO) via an addition and polymerization reaction of dehydrated castor oil (DCO), rosin acid (RA), zinc resinate (ZR) and dehydrated castor oil acid (DCOA).

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Liu, Yan Yan, Jian Wen Tian, and Wen Long Zhang. "High-Efficiency Modified Alkyd Resin Application Research." Advanced Materials Research 284-286 (July 2011): 2077–81. http://dx.doi.org/10.4028/www.scientific.net/amr.284-286.2077.

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Alkyd resin dispersions are used in the paint industry as the basis for the new generation of environmentally friendly gloss paints. This research based on two-component seed oil soybean oil and castor oil to synthesis high-efficiency modified alkyd resin. The experimental conditions are the mass ratio of soybean oil with castor oil is 2:1, 55% degree of oil, Ni(OH)2 as the catalyst and 210°C~220°C for alcohol solution reaction, 220°C for esterification under the protection of nitrogen. The experimental results show that the product non-drying days are more than 30 days, acid value is 6.6, the

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Tai, Ching-Lung, Po-Liang Lai, Wei-De Lin, et al. "Modification of Mechanical Properties, Polymerization Temperature, and Handling Time of Polymethylmethacrylate Cement for Enhancing Applicability in Vertebroplasty." BioMed Research International 2016 (2016): 1–8. http://dx.doi.org/10.1155/2016/7901562.

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Polymethylmethacrylate (PMMA) bone cement is a popular bone void filler for vertebroplasty. However, the use of PMMA has some drawbacks, including the material’s excessive stiffness, exothermic polymerization, and short handling time. This study aimed to create an ideal modified bone cement to solve the above-mentioned problems. Modified bone cements were prepared by combining PMMA with three different volume fractions of castor oil (5%, 10%, and 15%). The peak polymerization temperatures, times to achieve the peak polymerization temperature, porosities, densities, modulus and maximum compress

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Qin, Yan, Jin Rong Jia, and Zhi Xiong Huang. "The Effect of Content of Castor Oil on Two-Component Castor Oil Based Polyurethane Adhesive." Advanced Materials Research 311-313 (August 2011): 1128–31. http://dx.doi.org/10.4028/www.scientific.net/amr.311-313.1128.

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A new two-component polyurethane adhesive was prepared with castor oil used as main agent and castor oil modified TDI used as curing agent.The effect of castor oil on the mechanical properties, adhesion properties and thermal stability of this adhesive were studied.This paper show us that TDI could be used as curing agent after modification. When the NCO/OH in curing agent and main agent:curing agent were 1.6 and 3:5 respectively, high performance adhesive was obtained.

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Salim, Razan Ali, Ibrahim Yaagoub Erwa, Asmo Abdillahi Hassan, et al. "Synthesis and Characterization of Li -Zeolite Catalyst for Biodiesel Production from Castor Oil." Oriental Journal Of Chemistry 40, no. 5 (2024): 1281–89. http://dx.doi.org/10.13005/ojc/400509.

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This study used lithium-modified Zeolite as a heterogeneous catalyst to make biodiesel from non-edible castor oil. The catalyst was wet impregnated with natural Zeolite and characterized by XRD, FTIR, and SEM. Castor oil was extracted and injected into a GC-MS unit for analysis, and established procedures were used to evaluate chemical properties. The catalyst's performance in the transesterification reaction was examined to determine optimal process conditions and reusability. A catalyst characterization study found that the lithium-modified zeolite catalyst selectively produces methyl esters

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Arévalo-Alquichire, Said, Claudia Ramírez, Laura Andrade, et al. "Polyurethanes from modified castor oil and chitosan." Journal of Elastomers & Plastics 50, no. 5 (2017): 419–34. http://dx.doi.org/10.1177/0095244317729578.

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Polyurethanes (PUs) from castor oil (CO), modified CO (MCO) by transesterification reaction, isophorone diisocyanate (IPDI) in an NCO/OH ratio equal to 1, and chitosan (CS) were synthesized to assess their potential as biomaterials. PUs were characterized by Fourier transform infrared spectroscopy, hydroxyl value (ASTM D1957), thermogravimetric analysis, Shore A hardness (ASTM D2240), and scanning electronic microscopy (SEM). Also, contact angle, water retention and in vitro degradation in PBS, and cell viability on fibroblast were performed. The hydroxyl value confirms CO modification, and IR

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Perera, Helanka J., Anjali Goyal, Saeed M. Alhassan, and Hussain Banu. "Biobased Castor Oil-Based Polyurethane Foams Grafted with Octadecylsilane-Modified Diatomite for Use as Eco-Friendly and Low-Cost Sorbents for Crude Oil Clean-Up Applications." Polymers 14, no. 23 (2022): 5310. http://dx.doi.org/10.3390/polym14235310.

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Herein we report the synthesis and characterization of novel castor oil-based polyurethane (PU) foam functionalized with octadecyltrichlorosilane (C18)-modified diatomaceous earth (DE) particles, exhibiting superior hydrophobicity and oil adsorption, and poor water absorption, for use in effective clean-up of crude oil spillage in water bodies. High-performance and low-cost sorbents have a tremendous attraction in oil spill clean-up applications. Recent studies have focused on the use of castor oil as a significant polyol that can be used as a biodegradable and eco-friendly raw material for th

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Dissertations / Theses on the topic "Modified castor oil"

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CHEN, SHU-FENG, and 陳淑鳳. "Studies on manufacturing castor oil into oil-modified synthetic coatings." Thesis, 1991. http://ndltd.ncl.edu.tw/handle/66114261503644882425.

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HUANG, RONG-HONG, and 黃榮宏. "Study on the Properties of Synthetic Waterborne Polyurethane By Using Modified Castor Oil Polyol." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/983upz.

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碩士<br>國立臺北科技大學<br>化學工程與生物科技系化學工程碩士班<br>107<br>Waterborne polyurethane is a water-based polyurethane coating. It is an environmental protection material, but most of the raw materials used are traditional petroleum raw materials-polyether polyols or polyester polyols.. The characteristics of castor oil can replace polyol which make the waterborne polyurethane process more friendly to the environment. In this study, castor oil, succinic anhydride and glycerol were used to synthesize polyol, and using homemade polyol as raw material to synthesize waterborne polyurethane. The castor oil and glycer

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Guerreiro, Carlos Elói Nunes Ferreira. "Optimization of γ-decalactones production by genetically modified strains of Yarrowia lipolytica". Master's thesis, 2016. http://hdl.handle.net/1822/45372.

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Dissertação de Mestrado em Bioengenharia<br>No final dos anos 80, os compostos aromáticos produzidos por processos biotecnológicos, tornaram-se muito procurados pelos consumidores. Estes compostos têm uma variedade de aplicações de interesse sensorial (sistema olfativo), como em bebidas, cosméticos e na indústria do papel. A biotransformação do ácido ricinoleico através de microrganismos, como Yarrowia lipolytica, é um processo interessante para produzir compostos aromáticos com cariz “natural”. A γ-decalactona é um composto aromático de interesse industrial e possui um aroma cremoso e fr

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Book chapters on the topic "Modified castor oil"

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Dewi, Rozanna, Nasrun Ibrahim, Novi Sylvia, Dahlan Abdullah, and Medyan Riza. "Thermal Behavior of Modified Thermoplastic Starch (TPS) Synthesized from Sago (Metroxylon Sagu) with Diphenylmethane Diisocyanate and Castor Oil." In Proceedings of MICoMS 2017. Emerald Publishing Limited, 2018. http://dx.doi.org/10.1108/978-1-78756-793-1-00033.

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Conference papers on the topic "Modified castor oil"

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Nunes, Felipe G., Elber V. Bendinelli, Mark D. Soucek, and Idalina V. Aoki. "Synthesis of High Solids Alkyds Modified with Reactive Diluents for Encapsulation and Use in Self-healing Coatings." In LatinCORR 2023. AMPP, 2023. https://doi.org/10.5006/lac23-20430.

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A great effort has been devoted to the research of self-healing coatings, as they provide anticorrosive protection even when the painting is damaged [1]. The encapsulation of drying oils is an established strategy to promote self-healing. Microcapsules release the seed oil upon mechanical damage, which triggers self-healing in the coating defect as the oil undergoes oxidative polymerization [2]. Alkyds are also a great candidate for microencapsulation due to their green nature, oxidative-driven polymerization, and better anticorrosive properties than seed oils [3]. However, the high viscosity

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Hellems, Steve, John Willhite, and Ramesh Subramanian. "Bio Based Waterborne Floor Coatings with Enhanced Flow, Appearance, and Early Hardness Development." In SSPC 2015 Greencoat. SSPC, 2015. https://doi.org/10.5006/s2015-00026.

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Abstract The use of sustainable materials in the flooring market has gained widespread interest in recent years. Bio based raw materials contribute significantly to these efforts and are used to prepare environmentally friendly coatings. Castor oil based emulsions are used as polyols in waterborne polyurethane coatings. These systems have outstanding chemical resistance and good durability. But they have inherent issues like very short pot life, poor appearance / flow properties, and delayed early hardness development. In this paper the development of a new castor oil based polyol emulsion tha

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Wolters, Roy, and Brian Chambers. "Technical Justification of Table A.23 in NACE MR0175/ISO15156-3: the Use of Martensitic Stainless Steels in Wellhead and Valve Components in Sour Oilfield Service." In CORROSION 2012. NACE International, 2012. https://doi.org/10.5006/c2012-01561.

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Abstract This paper describes the results of a laboratory study evaluating environmentally-assisted cracking resistance of cast alloy CA6NM (UNS J91540) in highly sour environments and the implications of the findings on the usage of CA6NM in wellhead components. CA6NM is a commonly used material in wellhead tree components and valve and choke components in oil and gas production. NACE MR0175/ISO15156-3 permits the use of CA6NM, in the proper metallurgical condition, for these applications in any oil and gas production environment provided the pH of that environment is greater than or equal to

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Jenkins, William D. "Amine Carboxylates as Corrosion Inhibitors for Ferrous Metals." In CORROSION 1995. NACE International, 1995. https://doi.org/10.5006/c1995-95492.

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Abstract Amines can be caused to react with carboxylic acids in a typical neutralization reaction to produce salts called amine carboxylates. Significant variation in performance can result from appropriate selection of the amine and acid. Many are water soluble types. The acid is often derived from petroleum usually as an oxidate. Fatty derived sources are also important. Some applications for water soluble types are metalworking and cleaning. Besides preventing corrosion, a number of other performance requirements must be met. Non-aqueous or emulsifiable types find use in the temporary prote

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Verma, Nawneet, Arbind Prasad, Sushil Kumar Verma, Sonika, R. N. Prajapati, and Ranjeet Kumar. "Synthesis and characterizations of Maleic anhydride modified castor oil sustainable development of polyurethane/urea coatings." In 12TH INTERNATIONAL SEMINAR ON NEW PARADIGM AND INNOVATION ON NATURAL SCIENCES AND ITS APPLICATIONS (12TH ISNPINSA): Contribution of Science and Technology in the Changing World. AIP Publishing, 2024. http://dx.doi.org/10.1063/5.0210083.

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PANDEY, PRIYANKA, SANJAY KUMAR, SMITA MOHANTY, and SONALEE DAS. "Synthesis and characterization of biobased polyurethanes from modified castor oil and palm oil based isocyanate Effect of NCO OH molar ratio." In Second International Conference on Advances in Applied Science and Environmental Technology - ASET 2015. Institute of Research Engineers and Doctors, 2015. http://dx.doi.org/10.15224/978-1-63248-075-0-73.

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Kancharla, Sai Krishna, Rohit Jogineedi, Vishal Reddy Singireddy, Saereh Mirzababaei, Mike Dierks, and Peter Filip. "Tribological Investigation of Wear Behavior and Mechanisms in B390 and Sr-Modified B390 Aluminum Alloys under Dry and Wet Conditions." In Automotive Technical Papers. SAE International, 2024. https://doi.org/10.4271/2024-01-5109.

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<div class="section abstract"><div class="htmlview paragraph">Wear-resistant, die-cast B390 aluminum represents a relevant material frequently used in the automotive industry. The wear and its relation to the microstructure along with different alloying additives is studied with efforts toward improved performance. Alloying by Sr allows for a lower Fe content helps in mitigating iron needling. This paper addresses wear performance of B390 and Sr-modified B390 alloys, tested against pearlitic cast iron, used for manufacture of piston rings. The wear tests were designed by using an A

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Stephens, Lyndon Scott, Ravi Siripuram, Matthew Hayden, and Bianca McCartt. "Deterministic Micro Asperities on Bearings and Seals Using a Modified LIGA Process." In ASME Turbo Expo 2002: Power for Land, Sea, and Air. ASMEDC, 2002. http://dx.doi.org/10.1115/gt2002-30289.

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Deterministic micro asperities show potential for enhancement of lubrication in conformal contacts as found in many bearing and seal designs. Several manufacturing methods have been proposed for deterministic micro asperities. Of these, laser texturing has emerged as the most viable option. This paper proposes the LIGA MEMs manufacturing method as an alternative. Using LIGA, surfaces with patterned micron sized surface features of arbitrary cross section (cylindrical, hex, triangular, etc.) can be fabricated from electroplated nickel, gel-cast silicon nitride or plastic. The resulting asperiti

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Messer, Barry, Jose R. Fuentes, Bart Tarleton, and Peter den Boer. "Novel Ultrasonic Testing of Complex Welds." In ASME 2005 Pressure Vessels and Piping Conference. ASMEDC, 2005. http://dx.doi.org/10.1115/pvp2005-71408.

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Fluor and RTD have recently applied an ultrasonic testing (UT) technique that incorporates a phased array to field and shop operations. The new technique allows verification of weld integrity for difficult to access welds such as branch connection fittings and full penetration groove welds with fillet reinforcements. Verification of these types of welds is a necessity for power, oil and gas facilities, in particular, those operating under high pressure, high temperature, and corrosive environments. Historically, visual inspections of welds and radiograph testing (RT) have been used, but these

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Gucuyener, Ismail Hakki, Onur Kazim Gurcay, and Samed Yanik. "A Comprehensive Evaluation of Rheological Models for Non-Aqueous Drilling Fluids." In ASME 2022 41st International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/omae2022-78546.

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Abstract This article presents a comparison of Power’s law, Bingham plastic, Casson, Herschel-Bulkley, Unified Herschel-Bulkley, Robertson-Stiff, Gucuyener, Sisko and modified Sisko models using a rheological database of extensive real field and laboratory datasets. In this study, 778 field and laboratory shear rate/shear stress datasets collected from four different sources for oil-based (OBM) and synthetic-based (SBM) muds were evaluated. Rheological measurements were made using Couette coaxial cylinder rotational viscometer such as Fann-35 type viscometers, in the shear rate range of 5.11 t

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