Modeling paint and adhesive cure in automotive applications

Dickie, R. A.; Bauer, David R.; Ward, S. M.; Wagner, David

doi:10.1016/s0300-9440(97)00039-8

Cited by 39 publications

(27 citation statements)

References 3 publications

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“…The resin reactivity could be compromised by the unexpectedly achievement of the gelation point inside the outermost layer of the basecoat [6]. As said before, when the resin approaches gelification, minimum mobility of the macromolecules is only allowed [27] and, accordingly, the speed at which curing reactions can occur are strongly limited.…”

Section: Interpretation Of the Scratch Results: Surface Morphology Rmentioning

confidence: 99%

“…Therefore, the deposition process involves a multifaceted procedure which can last up to 1 h to deposit film of ∼120 m thickness [3]. This can strongly influence the overall economics of the painting process and, sometimes, can compromise its competitiveness in comparison to alternative technologies (i.e., base colour material moulded into shape) [4] or different coating procedures (i.e., those involving wet paints) [5,6].…”

Section: Introductionmentioning

confidence: 99%

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Scratch resistance of ‘fast-cured’ metal flake powder coatings

Bellisario

Barletta

Ucciardello

2010

Progress in Organic Coatings

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a b s t r a c tThe economy of high quality metal flakes powder coatings process is remarkably influenced by the curing procedure involving two cost and time consuming steps in convective oven. Significant savings can be achieved accelerating the baking process by IR pre-curing the outermost layers of the basecoat and following this with a conventional oven-baking of the whole coating system. In the present investigation, the IR pre-curing process of the basecoat was analyzed by studying the influence of the IR radiation intensity and exposure time on the adhesion strength and scratch resistance of the coating varying the contact load of the scratching indenter.

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Section: Interpretation Of the Scratch Results: Surface Morphology Rmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Scratch resistance of ‘fast-cured’ metal flake powder coatings

Bellisario

Barletta

Ucciardello

2010

Progress in Organic Coatings

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“…The cure of a resin is represented on a scale of 0-1, and is a qualitative measure of the relative number of cross links which are formed with respect to complete vitrification of a thermosetting adhesive (Sernek and Kamke 2007). Understanding the cross-linking of polymers can help identify the most appropriate cure strategies (Dickie et al 1997). In this particular case, the level of cure achieved in the process has not been known and the level of cure to be targeted has also been unclear.…”

Section: Product Understandingmentioning

confidence: 99%

Industrial oven improvement for energy reduction and enhanced process performance

Pask

Lake²,

Yang

et al. 2016

Clean Techn Environ Policy

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Industrial ovens consume a considerable amount of energy and have a significant impact on product quality; therefore, improving ovens should be an important objective for manufacturers. This paper presents a novel and practical approach to oven improvement that emphasises both energy reduction and enhanced process performance. The three-phased approach incorporates product understanding, process improvement and process parameter optimisation. Cure understanding is developed using Dynamic Mechanical Analysis (DMA) and CIE-Lch colour tests, which together highlight the impact of temperature variation on cure conversion and resulting product quality. Process improvement encompasses thermodynamic modelling of the oven air to evaluate the impact of insulation on temperature uniformity and system responsiveness. Finally, process parameters, such as temperature, pressure negativity and air flow, are optimised to reduce energy consumption. The methodology has been effectively demonstrated for a 1 MW festoon oven, resulting in an 87.5 % reduction in cooling time, saving 202 h of annual downtime and a reduction in gas consumption by 20-30 %.

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“…A set of macroscopic models have been developed for the solvent-borne based coating drying and curing [6][7][8][9][10]. Those models can generate very valuable quantitative information about how (i) the coating topology (from wet to dry) could be dynamically changed, (ii) the solvent could be smoothly removed, (iii) the crosslinking reaction could take place, and (iv) common defects could be successfully detected, analyzed, and prevented.…”

Section: Introductionmentioning

confidence: 99%