Multifunctional Paint Additive

Multifunctional Paint Additive Production of Active-Agent-Encapsulated Polymeric Functional Nanoparticles for Water-Repellent, Corrosion-Inhibiting, Sound and Thermal-Insulating Paints Applicable in Interior and Exterior Facade Systems for the Building Sector

Abstract

This study involved the production of an active-agent-encapsulated polymeric functional nanoparticle paint additive containing noise-dampening and thermal-problem-solving hydroxyapatite (HA) bioceramic isolated from eggshells and carbon graphene aerogel with natural water-repellent and corrosion-inhibiting properties for use in interior and exterior facade applications. The objective is to establish this functional paint as an ideal material candidate for functional applications in the building sector.

1. Introduction

Science and technology have increasingly become open to innovation and advancement. With rapidly growing urban transformation and the construction of thousands of buildings such as cafes, schools, homes, discos and bars, sound insulation has become a primary desired attractive feature. In the construction of both residential buildings and other types of buildings, as well as in elevator rooms, control rooms, machine rooms and numerous other noise-generating spaces, the need to provide insulation has emerged. The egg-carton sponge material shown in Figure 1, used for sound insulation, is currently employed in many facilities. Egg-carton-type sound insulation plays a major role in preventing or minimizing noise and sound in rooms and buildings, whether originating from inside or coming from outside. When sound and noise are excessive in an environment, it can lead to psychological, emotional and physical health deterioration in people. For these and similar reasons, the insulation field is advancing every day, and the need for various functionally-featured materials for the building sector has also increased. Noise always causes significant negative effects on people. For this reason, insulation use is desired in both homes and other buildings. [caption id="attachment_147447" align="aligncenter"] Figure 1: Egg-carton sponge used for sound insulation[/caption] Thermal insulation prevents the transfer of temperature between the building environment and the exterior. Thermal insulation is an indispensable attractive application in buildings. In well-insulated structures, it is possible to maintain warm indoor air regardless of external temperatures. External facade coatings are not preferred only during winter. In summer months, equipment such as ventilators or air-conditioning systems in buildings can consume significant electricity. Correspondingly, high utility bills can burden occupants. Besides sound and thermal insulation, water repellency and corrosion inhibition are also desired characteristics in building applications. This is because water formation can cause buildings to absorb moisture, insulation can deteriorate and fail to provide the desired performance. Furthermore, the performance of products used as water repellents can be weak. Their effectiveness duration can diminish, and prices continue to rise daily. Corrosion formation is one of the very important problems in the building sector. Corrosion occurs through contact of metal-based products with water or a liquid. This corrosion can produce microcracks and micropores in the structural appearance, and over time can lead to serious risks such as excessive brittleness that may eventually result in structural failure. In such cases, rust removers, known as anti-corrosion agents, are preferred. However, these are chemical products whose inhalation can be problematic for human use and can cause skin irritation. Their use in paints can show high costs, and the anti-corrosion performance impact is low. In this study, in response to problems facing the building sector, the production of active-agent-encapsulated polymeric functional nanoparticles applicable in interior and exterior facade systems to provide water repellency, corrosion inhibition, and sound and thermal insulation to paints was accomplished using our air-spinning system. Through the addition of active agents, an ideal material candidate capable of revolutionizing the paint sector could provide added value to the building sector. 2. Material and Method 2.1. Materials Eggshell waste was collected from our surroundings in this study. Carbon graphene aerogel was synthesized in our laboratory. Sodium alginate (SA) and calcium chloride (CaCl2) as a cross-linker were obtained from facilities in our area. 2.2. Method 2.2.1. Hydroxyapatite Synthesis from Eggshell Eggshells were collected from our surroundings, sterilized and dried. They were ground into powder in a ceramic mortar. The amount of calcium oxide (CaO) was determined by thermogravimetric analysis (TGA). The powder mixed with distilled water was treated with orthophosphoric acid by titration and precipitated. The precipitate liquid was filtered and dried in a vacuum oven and left overnight. After the process, it was sintered and hydroxyapatite (HA) was produced [1-7]. 2.2.2. Functional Nanoparticle Production via Air-Spinning A mixture of sodium alginate (SA), hydroxyapatite (HA) and carbon graphene aerogel (CGA) was prepared in distilled water. Calcium chloride (CaCl2) cross-linker was prepared in distilled water. Encapsulation was performed through core-shell interaction using a dual-nozzle internal feeding system, with the polymer active-agent mixture combined with air and brought into contact with the cross-linker to produce nanoparticles [1-7]. Figure 2 shows our core-shell interactive functional nanoparticle production method. 3. Results and Discussion Morphological (SEM) Analysis In this study, nanoparticle production was successfully accomplished. Table 1 contains the functional nanoparticle size distribution range. [caption id="attachment_147452" align="aligncenter"] Table 1. Functional nanoparticle size distribution range[/caption]

4. Conclusions

In this study, active-agent-encapsulated functional nanoparticles were produced economically via air-spinning. It could serve as an ideal material candidate for use in interior and exterior facade applications that can be added to paints for water repellency, corrosion inhibition, and sound and thermal insulation, capable of revolutionizing the paint sector. This active agent usable in paints and paint applications possesses various functional properties. The fact that it can be readily obtained from domestic sources enables more economical large-scale production of this active agent. Through our initiative to reduce external dependency in line with our Vision 2023 targets, a contribution to development in the building sector will be made.

References

[1] Buluş, E., Mansıroğlu, D. S., Ismık, D., Şahin, Y. M., Oktar, F. N., Gündüz, O., & Gökçe, H. (2018, April). Bioceramic synthesis and characterization to be used in major tissue engineering applications. In 2018 Electric Electronics, Computer Science, Biomedical Engineerings' Meeting (EBBT) (pp. 1-4). IEEE. [2] Bulus, E., Ismik, D., Mansuroglu, D. S., Sahin, Y. M., & Tosun, G. (2017, April). Synthesis and characterization of hydroxyapatite powders from eggshell for functional biomedical application. In 2017 Electric Electronics, Computer Science, Biomedical Engineerings' Meeting (EBBT) (pp. 1-3). IEEE. [3] Buluş, E., & Buluş, G. S. (2021). Intelligent Nano-Protective Production In Industrial Paints. JOURNAL OF MATERIALS AND ELECTRONIC DEVICES, 1(1), 28-31. [4] Buluş, E., Buluş, G. S., & Akkaş, M. (2021). Investigation of the Effects of Working Parameters in Electrospinning Technology on Morphology of Polymeric Nanofiber Membranes Using Reference Polymers. JOURNAL OF MATERIALS AND ELECTRONIC DEVICES, 2(1), 6-11. [5] Buluş, E., Buluş, G. S., Akkaş, M., Cetin, T., Yaman, E., & Altındal, T. (2020). Production and Characterization of Natural Sourced Hydroxyapatite Added Polystyrene Tissue Scaffolds by Electrospinning. JOURNAL OF MATERIALS AND ELECTRONIC DEVICES, 6(1), 12-18. [6] Bulus, G. S., & Bulus, E. (2021). Production of Aerogel-Silica Based Super Hydrophobic Waterproof Material in Smart Surface Coatings. JOURNAL OF MATERIALS AND ELECTRONIC DEVICES, 7(1), 15-18. [7] Buluş, E., Yucel, N., & Kamaci, O. (2021). Differences and Parametric Evaluation of Centrifugal Force Spinning from Electrospinning Method. JOURNAL OF MATERIALS AND ELECTRONIC DEVICES, 1(1), 16-27. Erdi Buluş Instructor / Materials Technology Specialist İstanbul Arel Üniversitesi ArelPOTKAM (Polymer Technologies and Composite Application and Research Center) Department of Transportation Services, Civil Aviation Cabin Services Program, Vocational School Salih Asker Polymer Technologies Specialist İstanbul Arel Üniversitesi ArelPOTKAM (Polymer Technologies and Composite Application and Research Center) Gülseren Sakarya Buluş Specialist İstanbul Provincial Health Directorate Bahçeşehir Üniversitesi Engineering Management Department Graduate Education Institute Mehmet Akkaş Associate Professor Kastamonu Üniversitesi Department of Mechanical Engineering, Faculty of Engineering and Architecture