Study of hybrid intralaminate curaua/glass composites

Júnior, José Humberto Santos Almeida; Ornaghi, Heitor Luiz; Amico, Sandro Campos; Amado, Franco Dani Rico

doi:10.1016/j.matdes.2012.05.044

Cited by 132 publications

(35 citation statements)

References 31 publications

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“…In general, S1 hybrid composite shows the best performance among the other hybrid composites and offers an excellent balance of weight to strength ratio and also reduces the use of nonbiodegradable material to lower the impact of using synthetic fibers. A similar trend of results was reported by Almeida Júnior et al [21].…”

Section: Resultssupporting

confidence: 91%

Tensile and Compressive Properties of Woven Kenaf/Glass Sandwich Hybrid Composites

Sharba

Leman

Sultan³

et al. 2016

International Journal of Polymer Science

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Monotonic (tensile and compression) properties of woven kenaf/glass reinforced unsaturated polyester sandwich hybrid composites have been experimentally investigated. Five types of composites laminates were fabricated using a combination of hand lay-up and cold press techniques, postcured for two hours at 80°C and left for 48 hours at room temperature. The hybrid composites contained fixed six layers of glass as a shell, three on each side, whereas the number of core kenaf layers was changed in three stages to get S1, S2, and S3 hybrid composites. Composites specimens with pure glass and kenaf were also fabricated for comparison. It was found that one kenaf layer replaced about 20% of total fiber weight fraction of the composite; this leads to reducing the density of final hybrid composite by 13%. Besides, in mechanical properties perspective, there are less than 1% reduction in compression strength and 40% in tensile strength when compared to pure glass composite. Generally, the results revealed that the best performance was observed in S1, which showed a good balance of all mechanical properties determined in this work.

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Section: Resultssupporting

confidence: 91%

Tensile and Compressive Properties of Woven Kenaf/Glass Sandwich Hybrid Composites

Sharba

Leman

Sultan³

et al. 2016

International Journal of Polymer Science

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“…It can be inferred that this is a manifestation of structural enhancement after surface treatment. Systems with more restrictions and greater enhancements tend to exhibit higher glass transition temperatures [44]. After chemical treatment, the flax fiber surface is cleaner and rougher.…”

Section: Discussionmentioning

confidence: 99%

Effect of Hygrothermal Aging and Surface Treatment on the Dynamic Mechanical Behavior of Flax Fiber Reinforced Composites

Petrů

2019

Materials

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The recent developments of FRP (fiber reinforced polymer) are towards the growth and usage of natural FRP in the field of engineering due to both environmental and economic benefits. Flax fiber is one of the most commonly used natural fibers. One of the critical factors affecting the mechanical behavior of FFRP (flax fiber reinforced polymer) is hygrothermal aging. Some experimental works have been conducted to investigate the effect of hydrothermal aging on static behavior of FFRP. However, fewer efforts have been made to study its damping properties after hydrothermal aging. In this paper, the effect of surface treatment (including alkalization, silanization, acetylation and alkali-silanization) on dynamic mechanical behavior of FFRP under hygrothermal aging is studied. The results show that water resistance and damping properties of FFRP are improved after surface treatment. The acetylation treated FFRP exhibits excellent damping performance among all treated specimens.

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“…For the TPU/PAni TSA membrane can be observed that the storage modulus has lower modulus, showing behavior of viscoelastic materials, with an elastomeric plateau before the T g , to rubbery behavior and viscous, when the modulus is zero 33,34 .…”

Section: Thermal Analysismentioning

confidence: 94%

Castor oil and commercial thermoplastic polyurethane membranes modified with polyaniline: a comparative study

et al. 2013

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The study of conducting polymeric membranes is decisive in some areas, as in fuel cells and electrodialysis. This work aims the study of membranes using conventional and conductive polymers blends. Two types of polyurethane were used as conventional polymers, commercial thermoplastic polyurethane and polyurethane synthesized from castor oil and 4-4-dicyclohexylmethane isocyanate. Two kinds of conducting polymers were used, polyaniline doped with organic acid and a self doped polyaniline. The polymers and the membranes were characterized by electrical conductivity, Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), dynamic mechanical analysis (DMA) and scanning electron microscopy (SEM). The synthesis of the membranes produced was proper, featuring a complete reaction, analyzed by FTIR. The membranes also showed good mechanical properties and thermal stability (≈ 220 °C). Among the membranes studied, the polyaniline doped with p-toluenesulphonic acid obtained higher thermal and viscoelastic properties. Thus they can be used in separation techniques using membranes.

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Study of hybrid intralaminate curaua/glass composites

Cited by 132 publications

References 31 publications

Tensile and Compressive Properties of Woven Kenaf/Glass Sandwich Hybrid Composites

Tensile and Compressive Properties of Woven Kenaf/Glass Sandwich Hybrid Composites

Effect of Hygrothermal Aging and Surface Treatment on the Dynamic Mechanical Behavior of Flax Fiber Reinforced Composites

Castor oil and commercial thermoplastic polyurethane membranes modified with polyaniline: a comparative study

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