Uso de resíduos de tinta em pó de pintura eletrostática para fabricação de revestimentos para piso
Use of electrostatic paint powder paints for the manufacture of floor coating
Carlos Eduardo Bruxel, Sandra Raquel Kunst, Luã Tainachi Mueller, Fernando Dal Pont Morisso, Carlos Leonardo Pandolfo Carone, Cláudia Trindade Oliveira
Resumo
A pintura eletrostática é um processo eficiente e bastante difundido de revestimento de peças metálicas. No entanto, durante o processo, parte da tinta em pó é perdida gerando resíduo. Portanto, este artigo propôs o uso deste resíduo como matéria-prima para a fabricação de revestimentos para pisos. Para isso, amostras foram elaboradas a partir de tinta híbrida recuperada (THR) diretamente do chão reaproveitamento do setor de pintura de uma empresa do ramo de pintura industrial e foram comparadas com amostras de tinta poliéster virgem (TPV) e tinta híbrida virgem (THV). As amostras foram avaliadas por meio de caracterizações térmicas, físico-químicas, morfológicas e mecânicas. Por meio do ensaio de flexão, obteve-se um módulo de resistência à flexão médio de 28,14 MPa, o que tornou possível comparar o revestimento polimérico de THR com os revestimentos cerâmicos da classe Semi-Grés, mostrando que esta alternativa de reciclagem apresenta resistência mecânica suficiente para a aplicação. As microscopias apresentaram os resíduos oriundos do chão da fábrica interagindo em meio à matriz polimérica da resina da tinta
Palavras-chave
Abstract
Electrostatic painting is an efficient and widespread process for coating metal parts. However, during the process, part of the powder paint is lost generating waste. Therefore, this article proposed the use of this residue as a raw material for the manufacture of floor coverings. For this, samples were made from recovered hybrid paint (THR) directly from the reuse of the painting sector of a company in the industrial painting sector and were compared with samples of virgin polyester paint (TPV) and virgin hybrid paint (THV). The samples were evaluated by means of thermal, physico-chemical, morphological and mechanical characterizations. Through the flexion test, an average flexural strength module of 28.14 MPa was obtained, which made it possible to compare the polymeric THR coating with the ceramic tiles of the Semi-Stoneware class, showing that this recycling alternative presents sufficient mechanical strength for the application. Microscopies showed residues from the factory floor interacting with the polymeric matrix of the paint resin.
Keywords
Referências
1 Jozsef B, Blaga, P. Factors that generate nonconformities in the electrostatic powder painting. Procedia Technology. 2015;19:1089-1093.
2 Thomas A, Saleh K, Guigon P, Czechowski C. Characterisation of electrostatic properties of powder coatings in relation with their industrial. Powder Technology, Compiègne. 2008;190(1-2):230-235.
3 Meschievitz T, Rahangdale Y, Pearson R. US council for automotive research (USCAR) low-emission paint consortium: a unique approach to powder painting technology development. Metal Finishing. 1995;93:(10):26-31.
4 Fedrizzi L, Stenico M, Deflorian F, Maschio S, Bonora PL. Effect of powder painting procedures on the filiform corrosion of aluminium profiles. Progress In Organic Coatings. 2007;59(3):230-238.
5 Fedrizzi L, Rodriguez FJ, Rossi S, Deflorian F. Corrosion study of industrial painting cycles for garden furniture. Progress in Organic Coatings. 2003;46(1):62-73.
6 Prasad LK, Mcginity JW, Williams RO. Electrostatic powder coating: principles and pharmaceutical applications. International Journal of Pharmaceutics. 2016;505(1-2):289-302.
7 Barringer SA, Sumonsiri N. Electrostatic coating technologies for food processing. Annual Review of Food Science and Technology. 2015;6(1):157-169.
8 Sauer D, Cerea M, DiNunzio J, McGinity J. Dry powder coating of pharmaceuticals: a review. International Journal of Pharmaceutics. 2013;457(2):488-502.
9 Cruz GT. Otimização do processo de moagem de tintas industriais base solvente [monografia]. Novo Hamburgo: Universidade Feevale; 2015.
10 Camargo M. Resinas poliésteres carboxifuncionais para tinta em pó: caracterização e estudo cinético da reação de cura [tese]. Porto Alegre: Universidade Federal do Rio Grande do Sul; 2002.
11 Sampuran-Singh O, O’Neill BC, Bright AW. A parametric study of electrostatic powder coating. Journal of Electrostatics. 1978;4(4):325-334.
12 Fu J, Krantz M, Zhang H, Zhu J, Kuo H, Wang YM, et al. Investigation of the recyclability of powder coatings. Powder Technology. 2011;211(1):38-45.
13 Weg. Preparação de tintas e vernizes, limpeza e descarte de embalagens visando à preservação ambiental. Mauá: Weg; 2017. 12 p.
14 Catarina GAS, Borsoi C, Romanzini D, Piazza D, Kunst SR, Scienza LC, et al. Development of acrylicbased powder coatings with incorporation of montmorillonite clays. Journal of Applied Polymer Science. 2017;134(27):45031.
15 Bertuoli PT. Desenvolvimento e caracterização de uma tinta em pó base poliéster contendo montmorilonita funcionalizada com silano [dissertação]. Caxias do Sul: Universidade de Caxias do Sul; 2014.
16 Lakshmi MS, Namadha B, Redd BS. Enhanced thermal stability and structural characteristics of different MMT-clay/epoxy-nanocomposite materials. Polymer Degradation & Stability. 2008;93:201-213.
17 Wang SF, Hu Y, Wang ZZ, Chen ZY, Fan WC. Synthesis and characterization of PC/ABS/montmorilonite nanocomposite. Polymer Degradation & Stability. 2003;80:157-161.
18 He H, Duchet J, Galy J, Gérard JF. Influence of cationic surfactant removal on the thermal stability of organoclays. Journal of Colloid and Interface Science. 2006;295:202-208.
19 Parra DF, Mercuri LP, Matos JR, Brito HF, Romano RR. Thermal behavior of the epoxy and polyester powder coatings using thermogravimetry/differential thermal analysis coupled gas chromatography/mass spectrometry (TG/DTA–GC/MS) technique: identification of the degradation products. Thermochimica Acta. 2002;386(2):143-151.
20 Relosi N, Neuwald OA, Zattera AJ, Piazza D, Kunst SR, Birriel EJ. Effect of addition of clay minerals on the properties of epoxy/polyester powder coatings. Polímeros. 2018;28(4):355-367.
21 Yew MC, Sulong NHR, Yew MK, Amalina MA, Johan MR. The formulation and study of the thermal stability and mechanical properties of an acrylic coating using chicken eggshell as a novel bio-filler. Progress in Organic Coatings. 2013;76:1549-1555.
22 Fazenda JMR. Tintas: ciência e tecnologia ABRAFATI. 4. ed. São Paulo: Editora Edgard Blucher; 2009. 1124 p.
23 Piazza D, Baldissera AF, Kunst SR, Rieder ES, Scienza LC, Ferreira CA, et al. Influence of the addition of montmorillonite in an epoxy powder coating applied on carbon steel. Materials Research. 2015;18:897-903.
24 Esteves ACC, Timmons AB, Trindade T. Nanocompósitos de matriz polimérica: estratégias de síntese de materiais híbridos. Quimica Nova. 2004;27(5):798-806.
25 Birriel, E. J., Piazza, D., Zattera, A. J., Rodrigues, K. S. and Amaral, C. B. Processo de obtenção de pó de PET a partir de PET pós-consumido, uso do pó de PET em tinta à base de poliéster. BR 10201502422. 2017 Nov 24.
26 Katsoulis C, Kandare E, Kandola BK. The effect of nanoparticles on structural morphology, thermal and flammability properties of two epoxy resins with different functionalities. Polymer Degradation & Stability. 2011;96:529-540.
27 Tabatabaeian M, Khaloo A, Khaloo H. An innovative high performance pervious concrete with polyester and epoxy resins. Construction & Building Materials. 2019;228:116820.
28 Pires G, Pereira DS, Dias Filho NL, Vecchia GD. Caracterização físico-química e mecânica do sistema éster de silsexquioxano/resina epóxi dgeba/dietilenotriamina. Revista Matéria. 2005;10(2):317-330.
29 Terracotagres [página da internet]. [acesso em 17 maio 2020]. O que é telha cerâmica semi-grês? Disponível em: http://inmovementtecnologia.com.br/terracotagres/o-que-e-a-telha-ceramica-semi-gres/.
30 Gupta K, Purwar SN. Studies on binary and ternary blends of polypropylene with SEBS, PS, and HDPE. II. Tensile and impact properties. Journal of Applied Polymer Science. 1985;30(5):1799-1814.
Submetido em:
11/12/2020
Aceito em:
12/03/2021
Facebook
Google+
Twitter
LinkedIn
Mendeley
StumbleUpon
CiteULike
Reddit
Email