Absorbing of Permanent Fragrance to Water-Based Acrylic Organic Coatings Using Bamboo

Abstract

Paints are widely available in many sectors, especially for coating and decorative purposes. Technological development has also influenced the paint market. Environmentally friendly, odorless, dust-resistant and water-resistant paints are being produced in response to increasing demand. Bamboo is a durable, environmentally friendly and composite biomaterial used to prevent the intense and unpleasant odor of paint. Bamboo retains liquids through its fiber structure for extended periods. In this study, positive results were obtained through experimental work on incorporating violet fragrance into acrylic organic coatings by utilizing bamboo's characteristics.

1. Introduction

Bamboo is a biological composite, renewable, efficient and environmentally friendly organic material. Bamboo is hygroscopic, absorbing and desorbing moisture to regulate its moisture content [1-4]. Bamboo is an abundant and sustainable resource in tropical and subtropical regions. Due to its faster growth rate, shorter rotation period compared to other species and higher mechanical strength, bamboo has received considerable attention over the last thirty years. Bamboo is the fastest growing and most versatile plant in the world. There are more than 1500 documented uses for bamboo. Modern science and technology have identified its applications in housing, handicrafts, paper, panels, coatings and other sectors [5, 6]. Since bamboo is a natural source of antioxidants and contains elements such as vitamins C and E, copper, iron and zinc, it is suitable for use in the pharmaceutical and cosmetic sectors [7]. Fragrances are used in all aspects of our daily lives (perfumes, deodorants, aftershave products, shampoos and hair creams, etc.). Fragrances are pleasant or sweet-smelling compounds produced by organic chemists [8]. In this study, to eliminate the intense odor of paint, bamboo and violet fragrance were added to water-based acrylic organic coatings to achieve lasting effects, and positive results were obtained.

2. Experimental Method

Dried bamboo was added to samples of optimally prepared water-based acrylic organic coatings (Figure 2.1). Eight different samples were prepared by adding 0-8% (w/w) violet extract to the paints. These samples were stirred using mechanical homogenization with an appropriate mechanical stirrer.

Figure 2.1 Dried bamboo

The prepared samples were diluted with an appropriate amount of water and applied to eight different plates (Figure 2.2) and autoclaved aerated concrete (Figure 2.3). The plates and autoclaved aerated concrete were allowed to dry, and drying, hydrophobicity and odor analysis were performed.

Figure 2.2 Plates after drying

Figure 2.3 Acrylic organic coated autoclaved aerated concrete

3. Results and Discussion 3.1 Drying Test

Testing on the plates showed that no paint residue remained on the finger. This indicated complete drying (Figure 3.1).

Figure 3.1 Drying Test

3.2 Hydrophobicity Test

Water was dropped onto the plates and flowed without adhering to the surface, confirming hydrophobicity (Figure 3.2).

Figure 3.2 Stages of hydrophobicity testing

3.3 Odor Test on Autoclaved Aerated Concrete

Violet extracts were added to eight different samples. These samples were applied to autoclaved aerated concrete. The autoclaved aerated concrete samples were kept for one week to absorb the fragrance through the bamboo. After one week, a sensory test was performed, confirming fragrance absorption by the bamboo. To determine the duration of fragrance retention, the painted autoclaved aerated concrete was kept in the laboratory for 12 months, and the fragrance effect was observed to remain permanent (Figure 3.3).

4. Conclusion

As a result, through bamboo fibers added to acrylic organic coating, violet fragrance was absorbed into the paint. At the 12-month mark, the permanent effect of fragrance in the paint was confirmed. Thus, it has been demonstrated that long-lasting fragrance can be achieved in acrylic organic coatings using bamboo for industrial applications. Assoc. Prof. Nil Acaralı Yıldız Technical University Chemical Engineering Department       Chemical Engineer Sibel Demir Yıldız Technical University Chemical Engineering Department    

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