A renewable approach toward the development of mahua oil‐based wood protective polyurethane coatings: Synthesis and performance evaluation

Raychura, Ashish J.; Jauhari, Smita; Patel, Kalpesh I.; Dholakiya, Bharatkumar Z.

doi:10.1002/app.46722

Cited by 5 publications

(4 citation statements)

References 36 publications

(53 reference statements)

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“…These PUs had no discernible fungicidal or microbicidal effects on microbial or fungal strains. 54 The PU coating on metal plating provides a protective measure against oxygen, which reduces the rate of corrosion by reducing the presence of oxygen, H+ ions and water on metal surfaces. 67,68 Due to polar urethane and ether parts, the PU coating resulted in excellent chemical resistance and outstanding mar resistance reported by Pawar et al 21 Not only that, the outstanding flexibility is granted by the ether linkages and polar urethane as well as the lengthy fatty amide chains, which also enhance adhesion to the substrate.…”

Section: Madhuca Indica Oil-based Polymersmentioning

confidence: 99%

Recent developments of Madhuca indica (Mahua) oil-based polymers: A mini review

Ganvit

Sharma

2022

Polymers from Renewable Resources

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Nowadays, the use of non-edible vegetable oils as the raw material for polymer development is growing in interest because of the scarcity and high demand for crude oil and also because of its eco-friendly approach. The utilization of non-edible oil to synthesize the applicable polymers reduces the usage of petrochemicals. To eliminate the reliance on petrochemicals, it is important to search for and extract alternate and domestic non-edible oils suitable for the synthesis of polymeric materials. This is now a promising research approach. The outstanding feature of indigenous, non-edible Madhuca indica oil (MO) is its chemical structure, with unsaturated sites and esters that are considerable ingredient polyols for the development of polymers. This review discusses the origin, structure and extraction of MO and systematically focuses on the recently developed polymers using oil as a renewable source of polyols. We have briefly reviewed MO-based polymeric materials such as alkyd resins like pentaalkyds for scratch resistance, glycerol alkyds for fly-ash coating, pentalkyd LC resins for display coating applications and epoxies of MO for biological coating materials. Also, the important polyurethanes in the pathways of MO-based fatty amide are transformed into the polyetherimide polyols through a step-growth reaction with bisphenol-A or bisphenol derivatives, which again react with isocyanates to produce MO-based PU for excellent adhesion and coating applications. Another type of waterborne polyurethane is made from polyesteramides. These PU coatings are used in the paint and pigment industries. We reviewed their synthesis and widespread use in coatings and composites.

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Section: Madhuca Indica Oil-based Polymersmentioning

confidence: 99%

Recent developments of Madhuca indica (Mahua) oil-based polymers: A mini review

Ganvit

Sharma

2022

Polymers from Renewable Resources

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“…The reaction's completion was examined through solubility checking in methanol. The product's complete solubility in methanol confirms its formation 36–38 . The final product was dissolved in diethyl ether and washed with a 15% aqueous NaCl solution.…”

Section: Methodsmentioning

confidence: 89%

“…The product's complete solubility in methanol confirms its formation. [36][37][38] The final product was dissolved in diethyl ether and washed with a 15% aqueous NaCl solution. Using a separating funnel, the aqueous layer was separated from the organic ether layer, which had the MFA in it.…”

Section: Synthesis Of Mfamentioning

confidence: 99%

Synthesis, physicochemical and thermal properties of urethane‐modified polyesteramide films using mahua and castor oil as sustainable resources

Ganvit,

Patel,

Patel

et al. 2023

J of Applied Polymer Sci

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In this work, a number of urethane‐modified polyesteramide (UmPEA) films were developed from mahua and castor oils, which are renewable resources. Mahua oil and diethanolamine were reacted to form mahua fattyamide, which was then reacted with itaconic acid to prepare polyesteramide. In order to make the UmPEA films, different proportions of polyesteramide and castor oil as polyols were reacted with isophoronediisocyanate. The UmPEA films showed excellent chemical resistance against water, acid, alkali, salt, and organic solvents and were found insoluble in common organic solvents. The thermal stability of the UmPEA films was investigated through TGA and DSC analyses, and their Tg values are between 69.1°C and 56.1°C for UmPEA films, which indicated that a higher content of CO enhances the Tg, and it was also found that the films were highly stable up to 230°C. The Ea values [224 kJ mol−1 (Tp1) and 226 kJ mol−1 (Tp2)] indicate that the castor oil enhances the thermal stability of the films due to better cross‐linking density occurring through the high hydroxyl groups of CO as the polyol which also showed better flame retardancy in the synthesized UmPEA films. Our findings demonstrate that the newly developed UmPEA films can be potent coating materials.

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“…Antibacterial PU coatings produced from epoxidized LO and PO-based polyol were also tested against E. coli [ 106 ], and the bioflavonoids karanjin and pongamol played an important role in the performance of the coatings [ 171 ]. MO-based PUFA also exhibited good antibacterial activities [ 146 , 147 , 148 ].…”

Section: Nonedible Vegetable Oil-based Polyurethane Coatingsmentioning

confidence: 99%

Nonedible Vegetable Oil-Based Polyols in Anticorrosive and Antimicrobial Polyurethane Coatings

et al. 2021

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This review describes the preparation of nonedible vegetable oil (NEVO)-based polyols and their application in anticorrosive and antimicrobial polyurethane (PU) coatings. PUs are a class of versatile polymers made up of polyols and isocyanates. Renewable vegetable oils are promising resources for the development of ecofriendly polyols and the corresponding PUs. Researchers are interested in NEVOs because they provide an alternative to critical global food issues. The cultivation of plant resources for NEVOs can also be popularized globally by utilizing marginal land or wastelands. Polyols can be prepared from NEVOs following different conversion routes, including esterification, etherification, amidation, ozonolysis, hydrogenation, hydroformylation, thio-ene, acrylation, and epoxidation. These polyols can be incorporated into the PU network for coating applications. Metal surface corrosion and microbial growth are severe problems that cause enormous economic losses annually. These problems can be overcome by NEVO-based PU coatings, incorporating functional ingredients such as corrosion inhibitors and antimicrobial agents. The preferred coatings have great potential in high performance, smart, and functional applications, including in biomedical fields, to cope with emerging threats such as COVID-19.

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A renewable approach toward the development of mahua oil‐based wood protective polyurethane coatings: Synthesis and performance evaluation

Cited by 5 publications

References 36 publications

Recent developments of Madhuca indica (Mahua) oil-based polymers: A mini review

Recent developments of Madhuca indica (Mahua) oil-based polymers: A mini review

Synthesis, physicochemical and thermal properties of urethane‐modified polyesteramide films using mahua and castor oil as sustainable resources

Nonedible Vegetable Oil-Based Polyols in Anticorrosive and Antimicrobial Polyurethane Coatings

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