Synergistic contribution of bio-based additives in wood paint: The combined effect of pigment deriving from spirulina and multifunctional filler based on carnauba wax

Calovi, Massimo; Rossi, Stefano

doi:10.1016/j.porgcoat.2023.107713

Cited by 9 publications

(23 citation statements)

References 58 publications

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“…This change exhibits a linear increase, reaching approximately 20 units when the pigment concentration is quintupled (sample S1.0). These findings align with the previous literature research [60]. Subsequently, the values of ∆E do not demonstrate a linear progression but stabilize at around 50 units in sample S5.0.…”

Section: Fillers and Coatings Morphologysupporting

confidence: 92%

“…These structures, with an average size exceeding 50 µm, possess an irregular shape. Nevertheless, this characteristic is inconsequential since they readily dissolve in water-based paints, as was emphasized in a prior study [60]. The analyses of the recent study using energy-dispersive X-ray spectroscopy (EDXS) emphasized that the spirulina granules are made of organic materials, displaying strong peaks corresponding to carbon, oxygen, and nitrogen.…”

Section: Fillers and Coatings Morphologymentioning

confidence: 97%

Section: Fillers and Coatings Morphologymentioning

confidence: 99%

“…The analyses of the recent study using energy-dispersive X-ray spectroscopy (EDXS) emphasized that the spirulina granules are made of organic materials, displaying strong peaks corresponding to carbon, oxygen, and nitrogen. Furthermore, the granules contain small amounts of P, K, S, Mg, and Na [60]. Consequently, the spirulina granules were incorporated into the commercial wood impregnator in accordance with the specified quantities presented in Table 1.…”

Section: Fillers and Coatings Morphologymentioning

confidence: 99%

“…While the scientific community is increasingly focused on the extensive application of bio-based and renewable resources, the impact of green additives on coating performance has often been overlooked. A recent study examined the use of spirulina as a pigment source for wood varnishes in conjunction with a multifunctional filler composed of carnauba wax [60]. The research demonstrated the potential of spirulina as an alternative natural pigment but also identified certain potential issues regarding the durability of the pigment itself.…”

Section: Introductionmentioning

confidence: 99%

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Comparative Analysis of the Advantages and Disadvantages of Utilizing Spirulina-Derived Pigment as a Bio-Based Colorant for Wood Impregnator

Calovi

Rossi

2023

Coatings

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The aim of this work was to examine the advantages and disadvantages of using spirulina-derived pigment as a bio-based colorant for wood impregnators. It investigated the effects of three different quantities of spirulina granules on the aesthetic properties and durability of a water-based wood impregnator. The impact of this environmental friendly pigment on the overall appearance of the coatings was estimated through colorimetric measurements and observations using an optical microscope. The durability of the coatings with varying amounts of spirulina was assessed by subjecting the samples to UV-B radiation and cyclic thermal shocks and analyzing them using infrared spectroscopy and colorimetric inspections. Furthermore, the influence of additive concentration on the coating’s barrier efficiency was examined through liquid resistance and water uptake tests. Finally, the scrub test was carried out to assess the effect of the spirulina pigment on the abrasion resistance properties of the protective layers. Ultimately, this study emphasized the remarkable coloration achieved through the use of the spirulina-based additive. However, the pigment derived from natural sources exhibited significant concerns associated with deterioration caused by UV-B radiation or the fading of the phycocyanin component found in spirulina. Thus, the work underscores the importance of implementing appropriate measures to safeguard the bio-based pigment from external factors such as temperature, solar radiation, and liquids.

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Section: Fillers and Coatings Morphologysupporting

confidence: 92%

Section: Fillers and Coatings Morphologymentioning

confidence: 97%

Section: Fillers and Coatings Morphologymentioning

confidence: 99%

Section: Fillers and Coatings Morphologymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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