Epoxy fique composites were evaluated for construction applications and compared with conventional wood used in construction. The composites studied were made with fique fibers treated using Na(OH) solution at 18 w/v%, untreated fique fibers were also used. The matrices were epoxy and epoxy with 5 wt.% of chemically modified C30B montmorillonite. Unidirectional composites of 90 mm × 20 mm × 4 mm were elaborated by pultrusion processing technique. The flexural properties loss occurred over 20 days of composites submitted to three types of environments: (i) water, (ii) saturated calcium hydroxide solution and (iii) mortar with w/c ratio of 0.45 and 540 kg/m 3 of cement, cured in a saturated solution of lime stone at 50 °C. Results showed that fiber treatment and montmorillonite addition improved the flexural modulus and strength of composites in 40% and 34% respectively. Moreover the flexural properties of composites before and after ageing resulted comparable or even better than conventional wood used in construction.
Bibliographical noteFunding Information:
The authors acknowledged to CONICET and to the Agencia de Promoción Científica y Tecnológica (ANPCyT) from the Ministerio de Ciencia, Tecnología e Innovación Productiva de Argentina (Project PICT 08-0223).
- A. Polymer-matrix composites (PMCs)
- B. Mechanical properties
- C. Damage mechanics
- D. Mechanical testing
- E. Pultrusion