Synthesis and characteristics of tung oil-based acrylated-alkyd resin modified by isobornyl acrylate

Xu, Xu; Chen, Lijing; Guo, Jiawen; Cao, Xiaoqin; Wang, Shifa

doi:10.1039/c7ra02189e

Cited by 50 publications

(28 citation statements)

References 28 publications

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“…This first step allows to form a monoglyceride conferring miscibility between the reactants (Scheme 1). 2,4,5,8,[26][27][28] This reaction is carried out at 240 °C in the presence of basic catalyst, typically lithium hydroxide and yields to a mixture mainly containing monoglycerides whose formation is confirmed by solubility test in methanol. 29 The reaction mixture is dissolved in methanol with a ratio of 1:3 and complete dissolution leads to a clear liquid solution,…”

Section: ) Alkyd Resins Synthesismentioning

confidence: 99%

“…Then, a (protected) polyacid such as phthalic anhydride, of petrochemical origin, is added to the reaction mixture containing monoglyceride and the second step, the polycondensation, occurs (Scheme 2). 2,4,5,8,[26][27][28]30…”

Section: Scheme 1: Transesterification Reaction Of Glycerol and Triglmentioning

confidence: 99%

“…71 Xu et al also used this method, to graft isobornyl acrylate. 72 2) Acrylate-alkyd hybrids via emulsion polymerization…”

Section: Acrylatementioning

confidence: 99%

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Hybrid alkyds, the glowing route to reach cutting-edge properties?

Chardon

Denis

Négrell

et al. 2021

Progress in Organic Coatings

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This review highlights both the various polymers grafted to alkyd resins reported in the literature and the different routes to synthesize these alkyd hybrids. Alkyd resins were discovered in the mid-1920s. Then, they quickly found a prominent place among coatings and paint binders thanks to their numerous advantages such as good heat resistance, excellent gloss, and low cost. Nevertheless, in the 50s, the emergence of new synthetic polymers with better properties (chemical resistance, mechanical and thermal properties) such as epoxy, acrylic or polyurethane, weakened the position of the alkyd resins among coating industry. Nowadays, due to global issues such as health and environmental concerns, research focuses on biobased polymers. Since, alkyd resins are mainly biobased, they have gained increasing attention in the last decade. Nevertheless, the issue of using volatile organic compounds (VOC) and the urge of replacing them, have led to the development of new synthetic routes. Moreover, in order to enhance alkyd properties and bridge the gap with new materials, other polymers such as epoxy, acrylates, polyurethanes or siloxanes were used to form alkyd hybrids. Hence, the different strategies to perform alkyd hybrids are detailed and discussed in this review. Furthermore, composites made with alkyd hybrid matrix are presented. Finally, the perspectives about the future developments of alkyd hybrids and the most promising hybrids are discussed.

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Section: ) Alkyd Resins Synthesismentioning

confidence: 99%

Section: Scheme 1: Transesterification Reaction Of Glycerol and Triglmentioning

confidence: 99%

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Hybrid alkyds, the glowing route to reach cutting-edge properties?

Chardon

Denis

Négrell

et al. 2021

Progress in Organic Coatings

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show abstract

“…Tung Tree Oil [5,11] Linseed [12][13][14] Hempseed Oil [8,14] Palmitic acid (C16:0) 3-5. Previously, several groups have investigated the oils as the hydrophobic coatings either on the wood or wood shive boards [15,16].…”

Section: Fatty Acid Composition (%)mentioning

confidence: 99%

“…Compared to other unconjugated drying oils, such as soybean and linseed oils, tung oil has a faster drying time, better water resistance, and greater hardness. Tung oil has a highly unsaturated and conjugated triene structure, therefore it can easily be chemically modified [ 5 ]. Linseed oil obtained from the seeds of Linum usitatissimum penetrates the surface of the bio-based materials and dries by an autoxidation process [ 6 ].…”

Section: Introductionmentioning

confidence: 99%

The Effect of Different Plant Oil Impregnation and Hardening Temperatures on Physical-Mechanical Properties of Modified Biocomposite Boards Made of Hemp Shives and Corn Starch

et al. 2020

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In this study, tung tree and linseed drying oils, as well as semi-drying hempseed oil, were analyzed as the protective coatings for biocomposite boards (BcB) made of hemp shives, corn starch binder, and the performance-enhancing additives. The hydrophobization coatings were formed at 40, 90, and 120 °C temperatures, respectively. The physical-mechanical properties such as the compressive strength, thermal conductivity, dimensional stability, water absorption, and swelling were tested. In addition, scanning electron microscopy (SEM) was employed for the analysis of the board microstructure to visualize the oil fills and impregnation in pores and voids. It was demonstrated that the compressive strength of oil-modified BcBs compared to uncoated BcBs (at 10% of relative deformation) increased by up to 4.5-fold and could reach up to 14 MPa, water absorption decreased up to 4-fold (from 1.34 to 0.37 kg/m2), swelling decreased up to 48% (from 8.20% to 4.26%), whereas the thermal conductivity remained unchanged with the thermal conductivity coefficient of around 0.085 W/m·K. Significant performance-enhancing properties were obtained due to the formation of a protective oil film when the tung tree oil was used.

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Fabrication of nano calcium fluoride impregnated organic polyester alkyd coating for anticorrosive and antibacterial applications

Benitha,

Jeyasubramanian,

Vijayakumari

et al. 2023

J of Applied Polymer Sci

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The advent of organic polyester alkyd resin has revolutionized the coating industry due to its good adherence to any substrate, high gloss, and greater drying speed. This work deals with the characterization of nano calcium fluoride (CaF2 Nps) incorporated polyester alkyd coating for efficient multifunctional coating applications. The CaF2 Nps are prepared by employing a facile co‐precipitation process. The prepared particles are characterized using X‐ray diffraction analysis (XRD) and scanning electron microscopy (SEM) to analyze their size and morphology. By employing the ball milling technique, the CaF2 Nps along with other additives are mixed with alkyd resin to form a coating. The spreading ability, volatile and non‐volatile content, surface roughness, and coating thickness are evaluated. The minimal inhibitory concentration (MIC) is estimated by the turbidimetric assay method against gram‐negative and gram‐positive bacteria strains. Since these pigments hold very good antibacterial properties, the CaF2 are impregnated in alkyd resin coating, in which CaF2 nanoparticles are used as pigments. To reduce the nosocomial infection spreading in the hospital environment the formulated paint is analyzed for its antibacterial and anticorrosive studies. The current study confirmed CaF2 impregnated organic alkyd resin coating possesses promising comparable properties which would be a good choice for coatings, addressing multifunctional properties.

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Synthesis and characteristics of tung oil-based acrylated-alkyd resin modified by isobornyl acrylate

Abstract: A tung oil-based acrylated-alkyd resin was modified by IBOA, exhibiting improved performance including mechanical strength, hardness, heat resistance, etc.

Cited by 50 publications

References 28 publications

Hybrid alkyds, the glowing route to reach cutting-edge properties?

Hybrid alkyds, the glowing route to reach cutting-edge properties?

The Effect of Different Plant Oil Impregnation and Hardening Temperatures on Physical-Mechanical Properties of Modified Biocomposite Boards Made of Hemp Shives and Corn Starch

Fabrication of nano calcium fluoride impregnated organic polyester alkyd coating for anticorrosive and antibacterial applications

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