Characterization of long bamboo Guadua Angustifolia fibre composite extracted via rotary–peeling method

Iwasaki, Kelvin M. K.; Reis, Pedro A.; Medeiros, Ricardo de

doi:10.1007/s40430-022-03433-x

Cited by 2 publications

(1 citation statement)

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“…In the second stage of treatment, the sign fiber decomposed at a temperature of 267.53°C, resulting in a weight reduction of 58.34%. Interestingly, this decrease was slightly smaller than the reported value of 56.9% for cantula fiber [44]. This second stage of decomposition occurs at temperatures between 150 -380 o C [45].…”

Section: Surface Angle and Surface Energycontrasting

confidence: 55%

Investigation of Zalacca Midrib – Based Composites Fibers as Prosthetic Socket Materials Accounting for a Variety of Alkali and Microcrystalline Cellulose Treatment.

Sakuri,

Sugiantoro,

Haryanto

et al. 2023

Preprint

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This research aimed to determine the effect of alkaline treatment on zalacca midrib fiber (ZMF) concerning various aspects such as thermal stability, crystallinity index, interfacial bonding, interfacial shear strength, water absorption capacity, as well as conducting Scanning Electron Microscopy (SEM). This investigation extended to evaluating the mechanical properties of composites enriched with microcrystalline cellulose with prosthetic socket materials available on the market. Subsequently, ZMF was obtained by splitting and soaking zalacca midrib for 12 hours. Each of ZMF was removed from the midrib and soaked in 5% sodium hydroxide for 3, 6, 9, and 12 hours. The composite material was molded by mixing 10% microcrystalline cellulose with a rotational speed of 150 rpm, maintaining a temperature of 40°C, and continuing the mixing process for 30 minutes. As a result of the alkaline treatment, several positive effects were observed, including increased fiber density, improved particle bonding, increased thermal compatibility, and cleaner fiber surfaces, attributed to reduced levels of hemicellulose, lignin, pectin, and other impurities as confirmed by SEM analysis. The microcrystalline cellulose added to the composite increased the interfacial shear strength, and tensile strength increased by 56.74%, composite flexural strength increased by 76.43%. The SEM analysis results showed that the composite with ZMF on the base fiber broke during the tensile test because fiber experienced an increase in interfacial bonding between fiber and the matrix. The water absorption test showed that untreated fiber had a higher level of absorption

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Section: Surface Angle and Surface Energycontrasting

confidence: 55%