The role of poly (ethylene-co-methacrylic acid) (EMAA) on cure kinetics and thermomechanical properties of epoxy

Silva, Bruna Louise; Filho, Carlos Gomes de Moura; Melo, José Daniel Diniz; Barbosa, Ana Paula Cysne

doi:10.1007/s00289-021-03650-9

Cited by 2 publications

(2 citation statements)

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“…The addition of EMAA has been reported to result in a decrease in both tensile strength and failure strain of epoxy 32 and to produce alterations in the cure of the epoxy network. 38 The results for modified epoxy samples confirm that the content of EMAA is more significant to the change in properties than particle size. The measured properties, strength and modulus, were observed to decrease as thermoplastic content increases, while particle size showed no significant effect for the two particle sizes studied.…”

Section: Tensile Testsmentioning

confidence: 66%

See 1 more Smart Citation

Effects of particle size and particle concentration of poly (ethylene‐co‐methacrylic acid) on properties of epoxy resin

Nascimento,

Trappe,

Pavasaryte

et al. 2024

J of Applied Polymer Sci

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Self‐healing polymers have been developed to improve durability and reduce costs associated with maintenance during service. The addition of thermoplastics to thermosets to produce mendable polymers appears as a promising self‐healing technique. In this study, poly (ethylene‐co‐methacrylic acid) (EMAA) was added to epoxy resin and the effects of EMAA addition on epoxy properties were evaluated. Specimens with two different contents of thermoplastic and particles sizes were manufactured. A two‐level full factorial experimental design was used to evaluate the effect of particle size and particle content on properties of epoxy modified with addition of EMAA. Tensile tests and dynamic mechanical analysis (DMA) were used and the evaluated responses were tensile strength, modulus of elasticity, and glass transition temperature (Tg). X‐ray computed tomography (XCT) was used to investigate particle size and concentration after manufacturing. It was found that the particle concentration has greater effects on stress–strain behavior of epoxy while Tg was not significantly affected by neither of the analyzed entrance variables.

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Section: Tensile Testsmentioning

confidence: 66%

“…Stress–strain curves of samples modified with addition of EMAA (Figure 8) showed lower elongation at break as compared to the neat epoxy. The addition of EMAA has been reported to result in a decrease in both tensile strength and failure strain of epoxy 32 and to produce alterations in the cure of the epoxy network 38 …”

Section: Resultsmentioning

confidence: 99%