Mechanical, thermogravimetric, and dynamic mechanical analysis of basalt and flax fibers intertwined vinyl ester polymer composites

Abstract

The selection of fibers and their stacking sequence, which affect structural integrity and functional properties, are critical parts of polymer composite design. In this work, the influence of various stacking sequences made of basalt and flax fiber layers on the mechanical, thermal, and dynamic mechanical analyses of vinyl ester polymer composites was investigated. The stacking sequence designed by alternate basalt and flax layers showed higher tensile and flexural strengths, with basalt layers in the outer positions. The high‐strength basalt fiber retains considerable stress, particularly in the outer layer, reducing stress transfer to the remaining core layers. The basalt and flax fiber alternative layered sequence with outer basalt layers shows a slightly lower thermal degradation temperature (467°C) than the only basalt layered sequence composite (474°C). Because of the high thermal resistance of the outer basalt layers, heat flow to the next fiber layers is reduced. The dynamic mechanical analysis reveals that the polymer composite intertwined with only basalt fiber was found to have a higher storage modulus. On the other hand, the outer basalt layers intertwined with the core flax layers composite showed a 122% higher damping value than the stacking sequence made of only basalt fiber due to the porous structure of flax fibers dissipating more vibration energy.

Mechanical and vibration behavior of surface‐modified titanium sheet interleaved with woven basalt/flax fiber metal laminates

“…Figure 8A–F shows the typical tensile fractured surface of FMLs. It is seen that fiber breakage/pull‐out, fiber‐matrix debonding, void, and delamination were observed 38 …”

“…It is seen that fiber breakage/pull-out, fiber-matrix debonding, void, and delamination were observed. 38 Delamination-based failure due to the de-adhesion between the metal sheet-matrix was observed in FMLs. 13 Besides, some of the split fibers are seen in the SEM images.…”

Application of sustainable treatments to fiber surface for performance improvement of elastomeric polyurethane reinforced with basalt fiber

“…The motion of EPU chains might be restricted after the addition of BF according to these results. [ 64–68 ]…”

“…The motion of EPU chains might be restricted after the addition of BF according to these results. [64][65][66][67][68] Tan δ curves in Figure 6 revealed that BF inclusions led to an increase in Tan δ of unfilled EPU. Similar to storage modulus findings, extensions in Tan δ of EPU were found to be higher amounts for composites filled with ES-BF and ER-BF.…”

Comparative evaluation of areca/carbon/basalt fiber reinforced epoxy/bio epoxy based hybrid composites

“…It can be concluded that the existence of the fewer amount of voids, good adhesion behavior among fabrics and matrices, proper fiber breakage, and pull-out characteristics of the laminates makes them suitable for certain medium load engineering applications. [67][68][69][70][71][72]…”