The effect of HMMM crosslinker content on the thermal-mechanical properties of polyester coil coatings

Sorce, Fabian S.; Ngo, Sonny; Lowe, C. P.; Taylor, A. C.

doi:10.1016/j.porgcoat.2019.105338

Cited by 9 publications

(7 citation statements)

References 38 publications

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“…Agglomerates of HMMM crosslinker have been shown to form with increasing melamine content [26], and for this reason unit cells of the polyester with increasing HMMM content where produced, in this case 5, 10, 15, 20, 25, 30% HMMM. A nominal density of 1g cm-3 was used for each and the unit cells where initially minimised with the Smart algorithm.…”

Section: Coarse-grained Modelsmentioning

confidence: 97%

“…The HMMM crosslinker has shown to selfcondense [24] and form agglomerates of between 5-8 µm in polyester/HMMM formulations using Raman spectroscopy [25]. The formation of these agglomerates has been shown to be dependent upon the amount of HMMM in the formulation, via Dynamic Mechanical Analysis [26]. Much smaller HMMM agglomerates of around 5 nm have also been suggested using coarse grained simulations [22].…”

Section: 𝛥𝛥𝛥𝛥mentioning

confidence: 99%

“…The ratio of the two is taken, shown in Equation 3 and the magnitude of the tangent represents the damping of the material. Figure 12, shows symmetric peaks for tan (δ) increasing related to the melamine content, but at 30% melamine content a shoulder is formed on the left of the original peaks and is proposed as the formation of a second network of self-condensed melamine [26].…”

Section: Crosslinker Agglomeratesmentioning

confidence: 99%

See 2 more Smart Citations

A molecular dynamics study on the miscibility and morphology of polyester blends used in coil coatings

Howlin

Lowe

et al. 2022

Progress in Organic Coatings

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Section: Coarse-grained Modelsmentioning

confidence: 97%

Section: 𝛥𝛥𝛥𝛥mentioning

confidence: 99%

Section: Crosslinker Agglomeratesmentioning

confidence: 99%

See 1 more Smart Citation

A molecular dynamics study on the miscibility and morphology of polyester blends used in coil coatings

Howlin

Lowe

et al. 2022

Progress in Organic Coatings

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“…A useful application of DMA is deriving the crosslink density using Hill's criterion, 35,36 or the concentration of crosslinks per unit volume of polymer, using eqn (2). The technique assumes that at high temperatures (above T g ), but below the decomposition temperature of the polymer, its storage modulus reaches a "rubbery plateau".…”

Section: Dynamic Mechanical Analysismentioning

confidence: 99%

Multiscale mechanical characterization of biobased photopolymers towards sustainable vat polymerization 3D printing

Lublin,

Hao,

Malyala

et al. 2024

RSC Adv.

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“…Figure 12. Dynamic mechanical analysis showing effect of crosslinker content on tan (δ) versus temperature [26] Conclusion…”

Section: Crosslinker Agglomeratesmentioning

confidence: 99%

A Molecular Dynamics Study on the Miscibility and Morphology of Polyester Blends used in Coil CoatingsA Molecular Dynamics Study on the Miscibility and Morphology of Polyester Blends used in Coil Coatings

Howlin²,

Lowe³

et al. 2021

Preprint

Self Cite

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Computational simulations can be used to save on both time and costs, complementing experimental work and providing further guidance. Immiscible polymer blends induce phase segregation, and in some cases can produce useful multicoat systems. This works uses a range of Molecular Dynamics Simulations methods, including an extended Flory Huggins Interaction Parameter χ to initially probe the interactions and miscibility between ester monomers commonly used in coil coatings. This work indicates that blends with similar backbone structures or “like with like” show increased miscibility and those with different structures lead to a large χ value and immiscibility. Further to this, polyester blends with different backbone structures have then been coarse grained with MARTINI beads and simulations of 10 µs have been run to identify the morphology of the blends at the mesoscopic level. Finally, the melamine crosslinker commonly used in polyester formulations has previously been shown to form agglomerates at higher melamine content, these agglomerates have been shown in atomistic simulations.

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The effect of HMMM crosslinker content on the thermal-mechanical properties of polyester coil coatings

Cited by 9 publications

References 38 publications

A molecular dynamics study on the miscibility and morphology of polyester blends used in coil coatings

A molecular dynamics study on the miscibility and morphology of polyester blends used in coil coatings

Multiscale mechanical characterization of biobased photopolymers towards sustainable vat polymerization 3D printing

A Molecular Dynamics Study on the Miscibility and Morphology of Polyester Blends used in Coil CoatingsA Molecular Dynamics Study on the Miscibility and Morphology of Polyester Blends used in Coil Coatings

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