Drying dynamics of polymers films by an interferometric technique

Olivares, J.; Galván-Miyoshi, J.M.; Cuppo, Fábio Luiz Sant'Anna; Zaldo, F.; Garcı́a-Valenzuela, Augusto

doi:10.1016/j.porgcoat.2013.10.015

Cited by 2 publications

(1 citation statement)

References 16 publications

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“…In addition, some complementary drying monitoring techniques have been reported. These methods are based on reflection and the spectral analysis such as the diffusingwave spectroscopy [2], interferometric technique [4], fiber Bragg grating sensor technique [1], refractometer technique [5], laser speckle image technique [3], terahertz technique [6], ultrasonic reflection method [7], and nuclear magnetic resonance technique [8]. Each of these techniques provides useful information on the drying process state.…”

Section: Introductionmentioning

confidence: 99%

Monitoring drying process of varnish by immersion solid matching method

Niskanen

Lauri

Räty

et al. 2019

Progress in Organic Coatings

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The characterization of the drying process of paints and coatings on the surfaces is important for many industrial applications. We present a new optical method to study the drying process of varnish based on immersion solid matching technique. The principle of the method is to match the refractive index of dry varnish with the added particles, making the dried varnish optically transparent. The state of the drying process can be evaluated by following the transparency of the varnish by visual inspection or imaging by camera. The method has several merits since it is non-contact, fast, simple and low-cost. In addition, particles that are invisible in dry varnish can provide improved properties such as hardness, abrasion and corrosion resistance or retard flammability without sacrificing the optical appearance of the coating.

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