Self-Healing Polymers and Composite Materials

Nascimento, Allana Azevedo do

doi:10.5772/intechopen.100908

Cited by 5 publications

(2 citation statements)

References 48 publications

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“…É um método que exige o comprometimento constante de todos na empresa, pois é a única forma de integrá-lo como parte de sua cultura e, com esta ferramenta, as pessoas incentivam que a herança se repita a um nível aceitável de desenvolvimento. Em alguns casos, isso só pode acontecer depois de usar o ciclo várias vezes (Azevedo;Silva, 2018). Trata-se de um método que permite tornar o trabalho mais eficiente e fazê-lo da maneira mais fácil, rápida e econômica, aumentando a qualidade dos resultados.…”

Section: Ciclo Pdcaunclassified

Inovação na Pipoca da Vovó em busca da melhoria contínua

Lima,

Marques

2024

Refas

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Em vista das disputas competitivas pelo mercado, cada vez mais as empresas estão preocupadas em aprimorar os processos que agregam maior valor com menor custo, produzindo o que atenda às necessidades dos consumidores. Nesse sentido, este estudo teve como objetivo implementar ferramentas de melhoria contínua, buscando aperfeiçoar a eficiência de um estabelecimento de venda de pipocas em um centro comercial, abordando questões relacionadas ao tempo de atendimento, à organização e à qualidade do serviço. Visou-se ao ciclo PDCA como metodologia para guiar a pesquisa, com foco nas fases de planejamento, execução, checagem e ação. As ações incluíram a adaptação das panelas, a aquisição de máquina de fichas, a implementação dos princípios da metodologia 5S e a promoção da filosofia Kaizen para a melhoria contínua. Os resultados mostraram redução no tempo de atendimento, maior organização no processo e aumento da satisfação dos clientes. A utilização do ciclo PDCA, aliado aos conceitos de qualidade, contribuiu para aprimorar o funcionamento do estabelecimento, destacando, ainda, que a integração da abordagem 5S trouxe organização e padronização, o que contribuiu para a eficiência operacional, juntamente com a implantação da filosofia kaizen que impulsionou a cultura de inovação e aprendizado dentro da empresa.

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Section: Ciclo Pdcaunclassified

Inovação na Pipoca da Vovó em busca da melhoria contínua

Lima,

Marques

2024

Refas

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“…The new material's qualities will, in the best case, be on par with or better than those of the original. In order to evaluate the performance of the improved self-healing material, the researcher or engineer should compare it to the virgin, unmodified material [68].…”

Section: Damage and Healing Theoriesmentioning

confidence: 99%

Smart Composite Materials with Self-Healing Properties: A Review on Design and Applications

Kontiza,

Kartsonakis

2024

Preprint

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Self-healing materials research spans many academic disciplines and employs a wide range of methodologies. Some of the developed concepts are driven by the direct application of the materials. However, a deeper understanding of the basic mechanisms and principles of self-healing materials is still a challenging aim. Nature has mostly served as an inspiration for the development of new self-healing materials, and it will undoubtedly continue to be a significant source of inspiration for the creation of novel ideas. This review encompasses the principles of self-healing mechanisms based on the concepts of autonomous and non-autonomous procedures. Studies based on smart composite materials with autonomous self-healing properties are also included and discussed from two aspects of intrinsic or extrinsic abilities, taking into consideration their components and structures as well as the design of these composites. Finally, special attention is given to the application of the materials in several fields such as aerospace, automotive, marine, energy, medical and healthcare, military, and construction.

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Synthesis and characterization of additively manufactured microcapsule‐reinforced polylactic acid composites for autonomous self‐healing

Mudakavi,

Varsha

et al. 2024

Polymer Engineering & Sci

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Material extrusion‐based additive manufacturing (AM) process builds the objects/structures through a precise feedstock deposition in a layer‐by‐layer manner. Polylactic acid (PLA) is a popular biodegradable feedstock in AM, while octyl methoxycinnamate (OMC) is known for its eco‐friendliness and ultraviolet (UV) protection properties. The present study focuses on the novel infusion methodology of OMC‐based microcapsules into PLA to develop self‐healing composite filaments. Post‐composition iterations, the optimum compositions for the filler and plasticizer were determined, and the filaments were extruded. Microcapsule‐infused PLA and the neat PLA samples were printed as per the American Society for Testing and Materials (ASTM) standard. The uniaxial tensile test results showed that the failure strain endured by the microcapsule‐infused samples was about 10 times more than the neat PLA counterparts. It is attributed to the effective load distribution and the complex polymerization reaction (due to the interaction of OMC with the matrix). Fracture surface morphology of the samples via optical microscopy (OM) and field emission scanning electron microscope (FESEM) affirmed the strong PLA‐OMC interface. A depreciation in the Brinell Hardness for the microcapsule‐based samples was due to the localized indenter force, causing greater damage in a narrow area than microcapsule ruptures' healing ability.Highlights The optimized composition of PLA: plasticizer:microcapsule is 1:0.04:0.05. Microcapsule‐infused PLA has improved Young's modulus and failure strain. Interaction with microcapsules improves elastic behavior and self‐healing. FESEM reveals close bonding of microcapsule with the PLA matrix.

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Self-Healing Polymers and Composite Materials

Cited by 5 publications

References 48 publications

Inovação na Pipoca da Vovó em busca da melhoria contínua

Inovação na Pipoca da Vovó em busca da melhoria contínua

Smart Composite Materials with Self-Healing Properties: A Review on Design and Applications

Synthesis and characterization of additively manufactured microcapsule‐reinforced polylactic acid composites for autonomous self‐healing

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