Banca de QUALIFICAÇÃO: ADRIANO EMANUEL BARROS AMARAL

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
STUDENT : ADRIANO EMANUEL BARROS AMARAL
DATE: 23/12/2025
TIME: 17:00
LOCAL: SALA DO LABCAD
TITLE:

Compression Knitted Fabrics: Mechanical Evaluation and Expansion toward Potential Applications

KEY WORDS:

Compression knitted fabrics. Elastane. Mechanical properties. Hysteresis. Interface pressure.

PAGES: 90
BIG AREA: Engenharias
AREA: Engenharia Química
SUBÁREA: Processos Industriais de Engenharia Química
SUMMARY:

Compression knitted fabrics are a class of functional textiles widely used in medical, sports and rehabilitation applications due to their ability to apply controlled pressure to the body, promoting venous return, muscle support and tissue recovery. The performance of these materials is directly related to their structure, fiber composition and mechanical properties, especially elasticity, recovery and viscoelastic behavior. In this context, the present study aimed to evaluate the mechanical behavior of laboratory-produced compression knitted fabrics and to discuss the expansion of their potential applications, considering experimental methods compatible with limited laboratory infrastructure.

Seven jersey-structured knitted samples were produced using a laboratory-scale circular knitting machine, with different polyamide and elastane proportions and variations in loop formation adjustment (LFA). The samples were subjected to hysteresis and elasticity tests according to ASTM D4964, immediate and prolonged recovery tests, microstructural analysis by optical microscopy, and interface pressure measurements using an adapted experimental system based on a pneumatic chamber and a clinical sphygmomanometer. The data obtained were analyzed using descriptive statistics, including mean values, standard deviation and coefficient of variation.

The results indicated that both the presence and proportion of elastane significantly affect the mechanical behavior of the knitted structures. Samples with intermediate elastane content exhibited a better balance between elasticity, dimensional recovery and mechanical stability, whereas excessive elastane content did not result in proportional performance gains and may lead to structural instability. Interface pressure measurements allowed the classification of the samples into low- and medium-compression ranges, compatible with occupational, sports and functional support applications. Despite the methodological limitations, the findings demonstrate that simplified experimental approaches can provide relevant information for the characterization of compression knitted fabrics, supporting the development of alternative and feasible materials in academic and industrial contexts

COMMITTEE MEMBERS:
Presidente - 3217842 - MARCOS SILVA DE AQUINO
Interno - 2239386 - JOSE IVAN DE MEDEIROS
Externo ao Programa - 349104 - LUIZ GUILHERME MEIRA DE SOUZA - UFRNExterno ao Programa - 2764728 - NEIL DE OLIVEIRA LIMA FILHO - UFRNExterno à Instituição - NAILTON TORRES CAMARA - IFRN