Studies on synthesis of environment-friendly products for paint and coating applications

Uttaravalli, Appala Naidu; Dinda, Srikanta

doi:10.1080/00194506.2019.1610082

Cited by 7 publications

(3 citation statements)

References 11 publications

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“…Synthetic resins have been prepared by the base-catalyzed polymerization of CPN in a high-pressure batch reactor. 150 The brown, highly viscous resin is thermally stable up to 180 °C and proposed to be a viable substitute for phenol–formaldehyde resin for paint and coating applications. A photoreactive epoxy resin with the CPN moiety in the main chain has been synthesized, and its thermal characteristics have been explored.…”

Section: Applications Of Cpn and Hcpnmentioning

confidence: 99%

“…Cyclic ketones like CPN have established applications as solvents for various resins. Synthetic resins have been prepared by the base-catalyzed polymerization of CPN in a high-pressure batch reactor . The brown, highly viscous resin is thermally stable up to 180 °C and proposed to be a viable substitute for phenol–formaldehyde resin for paint and coating applications.…”

Section: Applications Of Cpn and Hcpnmentioning

confidence: 99%

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Catalytic Transformation of Biomass-Derived Furfurals to Cyclopentanones and Their Derivatives: A Review

Dutta

Bhat

2021

ACS Omega

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Furfural (FF) and 5-(hydroxymethyl)furfural (HMF) are well-recognized biomass-derived chemical building blocks with established applications and markets for several of their derivatives. Attaining a wide spectrum of petrochemicals is the primary target of a biorefinery that employs FF and HMF as the chemical feedstock. In this regard, cyclopentanone (CPN) is a crucial petrochemical intermediate used for synthesizing a diverse range of compounds with immense commercial prospects. The hydrogenative ring rearrangement of FF to CPN in an aqueous medium under catalytic hydrogenation conditions was first reported in 2012, whereas the first report on the catalytic conversion of HMF to 3-(hydroxymethyl)cyclopentanone (HCPN) was published in 2014. Over the past decade, several investigations have been undertaken in converting FF and HMF to CPN and HCPN, respectively. The research studies aimed to improve the scalability, selectivity, environmental footprint, and cost competitiveness of the process. A blend of theoretical and experimental studies has helped to develop efficient, inexpensive, and recyclable heterogeneous catalysts that work under mild reaction conditions while providing excellent yields of CPN and HCPN. The time is ripe to consolidate the data in this area of research and analyze them rigorously in a review article. This work will assist both beginners and experts of this field in acknowledging the accomplishments to date, recognize the challenges, and strategize the way forward.

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Section: Applications Of Cpn and Hcpnmentioning

confidence: 99%

Section: Applications Of Cpn and Hcpnmentioning

confidence: 99%

Catalytic Transformation of Biomass-Derived Furfurals to Cyclopentanones and Their Derivatives: A Review

Dutta

Bhat

2021

ACS Omega

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“…Tremendous efforts have been made to advance environmentally friendly organic coating technology in the traditional corrosion prevention field [307]. Unfortunately, the antifouling requirement strictly limits the options of coating materials and manufacturing procedures.…”

Section: Environmentally Friendly Coatingmentioning

confidence: 99%

Modification, Degradation and Evaluation of a Few Organic Coatings for Some Marine Applications

Song

Feng

2020

CMD

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Organic coatings for marine applications must have great corrosion protection and antifouling performance. This review presents an overview of recent investigations into coating microstructure, corrosion protection performance, antifouling behavior, and evaluation methods, particularly the substrate effect and environmental influence on coating protectiveness, aiming to improve operational practice in the coating industry. The review indicates that the presence of defects in an organic coating is the root cause of the corrosion damage of the coating. The protection performance of a coating system can be enhanced by proper treatment of the substrate and physical modification of the coating. Environmental factors may synergistically accelerate the coating degradation. The long-term protection performance of a coating system is extremely difficult to predict without coating defect information. Non-fouling coating and self-repairing coatings may be promising antifouling approaches. Based on the review, some important research topics are suggested, such as the exploration of rapid evaluation methods, the development of long-term cost-effective antifouling coatings in real marine environments.

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Ketone modification of alkyd synthesized from waste PET as a sustainable option: A comparative study of coating and thermal properties of alkyd–melamine–ketone resin systems

Erol,

Acar

2024

Polymer Engineering & Sci

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This study aims to prepare alkyd–melamine–ketone combinations from short‐oil alkyd resins synthesized using coconut oil fatty acid and waste poly(ethylene terephthalate) (PET) intermediate (bis(2‐hydroxyethyl) terephthalate, BHET) for coating applications with a green technology approach. For this aim, waste PET flakes obtained from post‐consumer water bottles were depolymerized by the glycolysis reaction. Purified depolymerization intermediate (BHET) was incorporated into the formulation of the four‐component alkyd resin, completely instead of the diol. For comparison, reference alkyds without waste PET were also synthesized. Then, ketone modifications of alkyd resins were carried out using cyclohexanone formaldehyde (CHF) resin by blending method. For this, firstly, melamine formaldehyde (MF) resin was added to the alkyd resin at a ratio of 40% by weight to obtain alkyd–melamine formaldehyde (Alkyd–MF) resin. Then, ketone‐modified blends were prepared at ratios of Alkyd–MF/CHF of 80/20, 70/30, 60/40, and 50/50 by weight. The effect of using ketone (CHF) resin at different ratios and the presence of BHET on the coating properties and thermal behaviors of alkyd–ketone blend films were investigated. At the end of the study, high‐gloss (151–154 GU) and medium‐hard (71–120 König second) films exhibiting excellent adhesion (100%) were obtained from alkyd–ketone blends. In both the reference and PET‐based blend series, adding CHF resin to the alkyd–amino (Alkyd–MF) resin improved all physical coating properties. Moreover, with increasing CHF resin ratios, hardness, gloss, and abrasion properties increased in both series. Although acceptable and usable results have been obtained in all ratios of CHF resin (20%, 30%, 40%, and 50%), the optimum CHF resin ratio for each physical coating properties has changed depending on the desired properties and expectations. These blend films resisted corrosive chemicals such as concentrated alkali, acid, and salt solutions for 72 h without damage, and at the end of the 18 h not affected by water. Acetone, toluene, methanol, and ethyl acetate did not affect these films in any way. All films performed excellently in repeated environmental resistance testing over 10 cycles, simulating changing climate conditions. In the chemical coating tests, superior results were obtained with all CHF resin ratios. The thermal resistance of Alkyd–MF/CHF blend films was found to be quite high. The incorporation of CHF resin into the alkyd–amino (Alkyd–MF) resin improved thermal resistance, and as the amount of CHF resin increased the thermal stability increased in both blend series. Moreover, the thermal resistance of PET‐based blend films was higher than their counterparts in reference blends due to the use of long‐chain BHET having an aromatic unit.Highlights Alkyd–MF/CHF blends using alkyds with and without PET were prepared. Good physical/excellent chemical coating properties/high thermal resistance. Incorporation of CHF into Alkyd–MF improved coating/thermal properties. CHF significantly improved the individual alkali resistances of the alkyd. As CHF increased, physical coating properties/thermal resistance increased. The thermal stabilities of the PET‐based blend were even higher.

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Studies on synthesis of environment-friendly products for paint and coating applications

Cited by 7 publications

References 11 publications

Catalytic Transformation of Biomass-Derived Furfurals to Cyclopentanones and Their Derivatives: A Review

Catalytic Transformation of Biomass-Derived Furfurals to Cyclopentanones and Their Derivatives: A Review

Modification, Degradation and Evaluation of a Few Organic Coatings for Some Marine Applications

Ketone modification of alkyd synthesized from waste PET as a sustainable option: A comparative study of coating and thermal properties of alkyd–melamine–ketone resin systems

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