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Mechanical Properties of Poly(ethylene-co- methacrylic acid) Reinforced with Carbon Fibers (CROSBI ID 290227)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Haramina, Tatjana ; Pugar, Daniel ; Ivančević, Darko ; Smojver, Ivica Mechanical Properties of Poly(ethylene-co- methacrylic acid) Reinforced with Carbon Fibers // Polymers, 13 (2021), 1; 165-178. doi: 10.3390/polym13010165

Podaci o odgovornosti

Haramina, Tatjana ; Pugar, Daniel ; Ivančević, Darko ; Smojver, Ivica

engleski

Mechanical Properties of Poly(ethylene-co- methacrylic acid) Reinforced with Carbon Fibers

The capability of poly(ethylene-co-methacrylic acid) (E/MAA) to self-heal is well known, however, its mechanical properties are weak. In this study, composites with single and double layers of unidirectional (UD) carbon fibers were prepared by compression molding. Even a low mass fraction of fibers substantially improved the polymer. The flexural and tensile properties were tested at 0◦ , 45◦ and 90◦ fibers direction and compared to those of the matrix. The mechanical properties in the 0◦ direction proved superior. Flexural properties depended on the reinforcement distance from the stress neutral plane. The tensile modulus in the 0◦ direction was 13 times greater despite only a 2.5% mass fraction of fibers. However, both tensile modulus and strength were observed to degrade in the 90◦ direction. Dynamic mechanical analysis showed the dependence of both structure and properties on the thermal history of E/MAA. Tensile tests after ballistic impact showed that the modulus of the self-healed E/MAA was not affected, yet the strength, yield point, and particularly the elongation at break were reduced. A composite with higher fiber content could be prepared by mixing milled E/MAA particles in fibers prior to compression.

E/MAA ; composite ; carbon fibers ; mechanical properties ; self-healing ; dynamic mechanical analysis ; ballistic tests ; thermal history ; compression molding

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Podaci o izdanju

13 (1)

2021.

165-178

objavljeno

2073-4360

10.3390/polym13010165

Povezanost rada

Fizika, Strojarstvo

Poveznice
Indeksiranost