Tecnologia em Metalurgia, Materiais e Mineração
https://tecnologiammm.com.br/article/doi/10.4322/2176-1523.20222589
Tecnologia em Metalurgia, Materiais e Mineração
Artigo Original

Avaliação de materiais utilizados em compósitos com estrutura sanduíche para aplicação em pranchas de surfe

Evaluation of materials used in sandwich composites for application on surfboards

Matheus Vinícius Gregory Zimmermann, Gabriel Augusto Tereza Silva

Downloads: 3
Views: 693

Resumo

A evolução das tecnologias aplicadas em pranchas de surfe apresentou um crescimento acelerado nos últimos anos. Não apenas o design das pranchas mudou, mas também os materiais utilizados na produção das pranchas apresentaram uma grande evolução. Neste trabalho foi realizado um estudo investigativo e comparativo entre diferentes tipos de materiais utilizados para produção de compósitos e de estruturas sanduíche utilizados em pranchas de surfe. Foram avaliadas 2 matrizes poliméricas termorrígidas (poliéster insaturado e epóxi), 4 tipos de fibras na forma de mantas bidirecionais (vidro, carbono, poliaramida e algodão) e 3 tipos de núcleos na forma de espumas (poliuretano, poliestireno expandido e cortiça). O processamento dos compósitos foi realizado em escala laboratorial, mas seguindo os mesmos procedimentos utilizados na produção de uma prancha, ou seja, laminação manual. Para produção da estrutura sanduíche, os compósitos (epóxi) foram laminados sobre a superfície da espuma, utilizando duas camadas de tecidos. Os principais resultados indicam uma melhor eficiência do núcleo de poliuretano. Já nos compósitos laminados, entre as formulações avaliadas, a amostra epóxi com carbono apresentou propriedades mecânicas superiores.

Palavras-chave

Compósitos; Espumas poliméricas; Estrutura sanduíche; Fibras de reforço

Abstract

The evolution of technologies applied to surfboards has shown an accelerated growth in recent years. Not only has the design of the boards changed, but the materials used in the surfboards production have also evolved greatly. In this sense, in this work an investigative and comparative study was carried out between different types of materials used for the production of composites with sandwich structures used in surfboards. It was evaluated two thermoset polymeric matrices (unsaturated polyester and epoxy), 4 types of fibers in the form of blankets (glass, carbon, polyaramid and cotton) and 3 types of cores in the form of foams (polyurethane, expanded polystyrene and cork). The composite processing was carried out on a laboratory scale, but following the same procedures used in the surfboard production, that is, manual lamination by hand lay up. For the production of the sandwich structure, the composites (epoxy) were laminated on the foam surface, using two layers of glass fabrics and different cores. The main results indicate a better efficiency of the polyurethane core. In laminated composites, among the evaluated formulations, epoxy with carbon sample showed superior mechanical properties.

Keywords

Composites; Polymeric foams; Sandwich structure; Reinforcement fibers.

Referências

1 Audy A. Enhancing technology education at surf science: a collaborative, problem-oriented approach to learning design, materials and manufacturing of surfboards. Eurasia Journal of Mathematics, Science and Technology Education. 2007;3(2):133-140.

2 Tuwair H, Hopkins M, Volz J, ElGawady MA, Mohamed M, Chandrashekhara K, et al. Evaluation of sandwich panels with various polyurethane foam-cores and ribs. Composites. Part B, Engineering. 2015;79:262.

3 Castro O, Silva JM, Devezas T, Silva A, Gil L. Cork agglomerates as an ideal core material in lightweight structures. Materials & Design. 2010;31:425.

4 Sargianis J, Kim HI, Suhr J. Natural cork agglomerate employed as an environmentally friendly solution for quiet sandwich composites. Scientific Reports. 2012;2:493.

5 Mosiewicki MA, Dell’Arciprette GA, Aranguren MI, Marcovich NE. Polyurethane foams obtained from castor oil-based polyol and filled with wood flour. Journal of Composite Materials. 2009;43:3057.

6 Michelena AH, Graham-Jones J, Summerscales J, Hall W. Eco-friendly flax fibre/epoxy resin/composite system for surfboard production. natural fibres. Advances in Science and Technology Towards Industrial Applications. 2016;12:267-277.

7 Johnstone J. Flexural testing of sustainable and alternative materials for surfboard construction, in comparison to current industry standard materials. The Plymouth Student Scientist. 2011;4(1):109-142.

8 ASTM International. ASTM D1622-08 - Standard Test Method for Apparent Density of Rigid Cellular Plastics. West Conshohocken, PA: ASTM International; 2008.

9 ASTM International. ASTM D3574-11 - Standard Test Methods for Flexible Cellular Materials - Slab, Bonded, and Molded Urethane Foams, . West Conshohocken, PA: ASTM International; 2011.

10 Khan ZI, Arsad A, Mohamad Z, Habib U, Zaini MAA. Comparative study on the enhancement of thermomechanical properties of carbon fiber and glass fiber reinforced epoxy composites. Materialstoday Procedings. 2021;39(2):956-958.

11 Eksi S, Genel K. Comparison of mechanical properties of unidirectional and woven carbon, glass and aramid fiber reinforced epoxy composites. Acta Physica Polonica A. 2017;132:879-882.

12 Prashanth S, Subbaya KM, Nithin K, Sachhidananda S. Fiber reinforced composites - a review. Journal of Marine Science and Engineering. 2017;6(3):1-6.

13 Reis L, Silva A. Mechanical behavior of sandwich structures using natural cork agglomerates as core materials. The Journal of Sandwich Structures & Materials. 2009;11:487-500.


Submetido em:
16/06/2021

Aceito em:
30/08/2021

62388fbaa953955eba0ae743 tmm Articles
Links & Downloads

Tecnol. Metal. Mater. Min.

Share this page
Page Sections