Self-Healing Performance of Smart Polymeric Coatings Modified with Tung Oil and Linalyl Acetate

Ismail, Norhan Ashraf; Khan, Arfaat; Fayyad, Eman M.; Kahraman, Ramazan; Abdullah, Aboubakr M.; Shakoor, Abdul

doi:10.3390/polym13101609

Cited by 16 publications

(23 citation statements)

References 47 publications

(74 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Despite the readiness of being converted to surface-dry films given by its prompt susceptibility to radical oxydopolymerization, tung oil can be homo- and copolymerized, in a strategy that was first described in the late 1960s and again in the early 1980s [ 102 ]. In the last years, however, the number of related publications increased considerably, and some relevant examples involve the preparation of vitrimers [ 99 ], UV-led curable [ 103 ] and antifouling [ 104 ], self-healing smart coatings [ 92 , 105 ], and tung oil/furfuryl alcohol networks [ 106 ], designed following a previous investigation on the cationic polymerization of tung oil and methyl α-eleoestearate [ 107 ].…”

Section: Broadening the Horizon: Bio-based Routes For Original Polymersmentioning

confidence: 99%

Monomers and Macromolecular Materials from Renewable Resources: State of the Art and Perspectives

Gandini

Lacerda

2021

Molecules

View full text Add to dashboard Cite

A progressively increasing concern about the environmental impacts of the whole polymer industry has boosted the design of less aggressive technologies that allow for the maximum use of carbon atoms, and reduced dependence on the fossil platform. Progresses related to the former approach are mostly based on the concept of the circular economy, which aims at a thorough use of raw materials, from production to disposal. The latter, however, has been considered a priority nowadays, as short-term biological processes can efficiently provide a myriad of chemicals for the polymer industry. Polymers from renewable resources are widely established in research and technology facilities from all over the world, and a broader consolidation of such materials is expected in a near future. Herein, an up-to-date overview of the most recent and relevant contributions dedicated to the production of monomers and polymers from biomass is presented. We provide some basic issues related to the preparation of polymers from renewable resources to discuss ongoing strategies that can be used to achieve original polymers and systems thereof.

show abstract

Section: Broadening the Horizon: Bio-based Routes For Original Polymersmentioning

confidence: 99%

Monomers and Macromolecular Materials from Renewable Resources: State of the Art and Perspectives

Gandini

Lacerda

2021

Molecules

View full text Add to dashboard Cite

show abstract

“…Our previous work presented the detailed steps of the urea-formaldehyde microcapsule synthesis encapsulated with linalyl acetate, a self-healing agent. 48 Synthesis of Zn/Al LDH. The Zn/Al LDH was synthesized by the hydrothermal crystallization method.…”

Section: Methodsmentioning

confidence: 99%

“…■ RESULTS AND DISCUSSION Morphological Analysis. SEM, TEM, and EDX analyses have been carried out for the unloaded and loaded Zn/Al LDH, while for the morphological structure, the detailed discussion of the SEM and EDX analyses of the LAUFCs has been reported in our previous work 48 and the surface morphology of LAUFCs is shown in Figure 3. Furthermore, the study highlighted that the majority (∼ 70%) of the LAUFCs have a size of 4−125 μm.…”

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Multilayered LDH/Microcapsule Smart Epoxy Coating for Corrosion Protection

Ismail,

Shakoor,

Al-Qahtani

et al. 2023

ACS Omega

Self Cite

View full text Add to dashboard Cite

A multilayered smart epoxy coating for corrosion prevention of carbon steel was developed and characterized. Toward this direction, as a first step, zinc-aluminum nitrate-layered double hydroxide (Zn/Al LDH) was synthesized using the hydrothermal crystallization technique and then loaded with dodecylamine (DOD), which was used as an inhibitor (pH-sensitive). Similarly, the synthesis of the urea-formaldehyde microcapsules (UFMCs) has been carried out using the in-situ polymerization method, and then the microcapsules (LAUFCs) were encapsulated with linalyl acetate (LA) as a self-healing agent. Finally, the loaded Zn/Al LDH (3 wt %) and modified LAUFCs (5 wt %) were reinforced into an epoxy matrix to develop a double-layer coating (DL-EP). For an exact comparison, pre-layer epoxy coatings comprising 3 wt % of the loaded Zn/Al LDH (referred to as LDH-EP), top-layer epoxy coatings comprising 5 wt % linalyl acetate urea-formaldehyde microcapsules (referred to as UFMLA COAT), and a blank epoxy coating (reference coating) were also developed. The developed epoxy coatings were characterized using various techniques such as XRD, XPS, BET, TGA, FTIR, EIS, etc. Electrochemical tests performed on the synthesized coatings indicate that the DL-EP demonstrates improved self-healing properties compared to LDH-EP and UFMLA COAT.

show abstract

“…In this paper, cerium nitrate was encapsulated within the poly(urea-formaldehyde) (PUF) microcapsules. PUF was employed as the capsule shell material, and it was considerably investigated in self-healing applications to protect the healing agents due to the facile preparation of PUF microcapsules along with its thermal and chemical stability and compatibility with the epoxy-based matrix. − The experimental study of self-healing ability in the coating was based on electrochemical impedance spectroscopy (EIS) tests to evaluate the corrosion resistance and self-healing ability of epoxy coatings containing three weight percentages of the microcapsules.…”

Section: Introductionmentioning

confidence: 99%

Encapsulation of Cerium Nitrate within Poly(urea-formaldehyde) Microcapsules for the Development of Self-Healing Epoxy-Based Coating

et al. 2021

View full text Add to dashboard Cite

In order to study the release of cerium nitrate in a self-healing epoxy-based coating, poly (urea-formaldehyde) (PUF) microcapsules containing cerium nitrate were synthesized. The effects of healing agent concentration and weight percent of microcapsules in the epoxy resin were studied through the incorporation of microcapsules within an epoxy-based coating. The prepared microcapsules were characterized using thermogravimetric analysis and Fourier transform infrared spectroscopy and confirmed the successful encapsulation of cerium nitrate within PUF capsules. The self-healing performance of the prepared epoxy coating was investigated in 0.6 M NaCl solution using electrochemical impedance spectroscopy (EIS) tests. The EIS results indicated the successful release of encapsulated cerium nitrate from PUF microcapsules once the damage occurred in the epoxy coating, which led to effective self-healing of the epoxy-based coating. The presence of chlorine and cerium ions in the solution led to the precipitation of cerium hydroxides and oxides in the scratched area as a passive layer which hindered the corrosion in the damaged area. In addition, the EIS results showed that the healing performance of the coatings depends on the weight percent of microcapsules and the concentration of the self-healing agent. The highest self-healing performance was achieved for the maximum amount of microcapsule incorporation (10 wt %), while the increase in the microcapsule percent led to a decrease in the adhesion of the coating to the substrate.

show abstract

Self-Healing Performance of Smart Polymeric Coatings Modified with Tung Oil and Linalyl Acetate

Cited by 16 publications

References 47 publications

Monomers and Macromolecular Materials from Renewable Resources: State of the Art and Perspectives

Monomers and Macromolecular Materials from Renewable Resources: State of the Art and Perspectives

Multilayered LDH/Microcapsule Smart Epoxy Coating for Corrosion Protection

Encapsulation of Cerium Nitrate within Poly(urea-formaldehyde) Microcapsules for the Development of Self-Healing Epoxy-Based Coating

Contact Info

Product

Resources

About