Influence of MWCNT addition on mechanical properties of density graded E-glass fiber reinforced polyester resin composites

This work represents a study to investigate the mechanical properties of longitudinal basalt/woven-glass-fiber-reinforced unsaturated polyester-resin hybrid composites. The hybridization of basalt and glass fiber enhanced the mechanical properties of hybrid composites. The unsaturated polyester resin (UP), basalt (B) and glass fibers (GF) were fabricated using the hand lay-up method in six formulations (UP, GF, B7.5/G22.5, B15/G15, B22.5/G7.5 and B) to produce the composites, respectively. This study showed that the addition of basalt to glass-fiber-reinforced unsaturated polyester resin increased its density, tensile and flexural properties. The tensile strength of the B22.5/G7.5 hybrid composites increased by 213.92 MPa compared to neat UP, which was 8.14 MPa. Scanning electron microscopy analysis was used to observe the fracture mode and fiber pullout of the hybrid composites.

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Mechanical properties of glass fiber reinforced polyester resin for use as the wall of the Acehnese boat ‘Thep-Thep’

IOP Conference Series Materials Science and Engineering ◽

10.1088/1757-899x/523/1/012080 ◽

2019 ◽

Vol 523 ◽

pp. 012080 ◽

Cited By ~ 1

Author(s):

N Nazaruddin ◽

A Akram ◽

I Hasanuddin ◽

M Iqbal ◽

R Kurniawan ◽

...

Keyword(s):

Mechanical Properties ◽

Glass Fiber ◽

Polyester Resin ◽

Fiber Reinforced ◽

Glass Fiber Reinforced

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Mechanical behavior of transparent fiber reinforced polyester composites at extreme temperatures

10.32469/10355/70696 ◽

2018 ◽

Author(s):

◽

Saad Ramadhan Ahmed

Keyword(s):

Mechanical Properties ◽

Glass Fiber ◽

Polyester Resin ◽

Unsaturated Polyester ◽

Glass Fibers ◽

Fiber Reinforced Polymers ◽

Extreme Conditions ◽

Fiber Reinforced ◽

Glass Fiber Reinforced ◽

The Impact

Selecting materials for harsh or extreme environmental conditions can be a challenge. The combination of a harsh environment, large forces over extended periods and the need for lowest possible cost restricts the choice of materials. One potential material is glass fiber reinforced polymers that are widely used in structural systems as load bearing elements, they are relatively low cost and can be tailored to achieve a range of mechanical properties. This investigation presents the preparation of transparent glass fiber reinforced unsaturated polyester composite and the evaluation of its optical and mechanical properties under extreme conditions of temperature. The polyester resin was reinforced with E-glass fibers to manufacture a composite using the hand layup method. Transparency was achieved by modifying the refractive index of the polyester resin to match that of the glass fibers. This investigation also presents the evaluation of glass fiber reinforced unsaturated polyester under quasi-static tension loading and puncture testing using a drop weight at extreme conditions. The results showed that the reinforced composite had a higher fracture stress and chord modulus at all temperatures ranging from +60 [degree]C to -80 [degree]C as compared to the unreinforced polyester matrix. The unreinforced polyester has a higher stiffness at lower temperatures due to reduced polymer chain mobility and higher clamping pressure of the matrix on the glass fiber reinforcement. The damage created by the impact reduces with decreasing temperatures, while the energy absorb remains constant with temperature.

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