Thermal Degradation Analysis on 4-year-old Culms of Cultivated Tropical Bamboo Bambusa Vulgaris

Wahab, Razak; Mustafa, Mohd Tamizi; Fauzi, Norashikin; Samsi, Hashim W.

doi:10.5296/jas.v5i3.11664

Cited by 2 publications

(1 citation statement)

References 21 publications

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“…The results of the FTIR test in this study found that a peak between 1440 and 1475 cm −1 indicates a CH 2 asymmetric stretch. A peak between 2880 and 2975 cm −1 shows a CH 3 symmetrical stretch [ 51 , 52 ]. FTIR test results showed the presence of symmetrical bending of CH 3 in specimens of 0, 10, 20, and 30% at peaks of 1373, 1335, 1332, and 1336 cm −1 , respectively.…”

Section: Resultsmentioning

confidence: 99%

Characterization of PLA/PCL/Nano-Hydroxyapatite (nHA) Biocomposites Prepared via Cold Isostatic Pressing

et al. 2023

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Hydroxyapatite has the closest chemical composition to human bone. Despite this, the use of nano-hydroxyapatite (nHA) to produce biocomposite scaffolds from a mixture of polylactic acid (PLA) and polycaprolactone (PCL) using cold isostatic pressing has not been studied intensively. In this study, biocomposites were created employing nHA as an osteoconductive filler and a polymeric blend of PLA and PCL as a polymer matrix for prospective usage in the medical field. Cold isostatic pressing and subsequent sintering were used to create composites with different nHA concentrations that ranged from 0 to 30 weight percent. Using physical and mechanical characterization techniques such as Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM), and density, porosity, tensile, and flexural standard tests, it was determined how the nHA concentrations affected the biocomposite’s general properties. In this study, the presence of PLA, PCL, and nHA was well identified using FTIR, XRD, and SEM methods. The biocomposites with high nHA content showed intense bands for symmetric stretching and the asymmetric bending vibration of PO43−. The incorporation of nHA into the polymeric blend matrix resulted in a rather irregular structure and the crystallization became more difficult. The addition of nHA improved the density and tensile and flexural strength of the PLA/PCL matrix (0% nHA). However, with increasing nHA content, the PLA/PCL/nHA biocomposites became more porous. In addition, the density, flexural strength, and tensile strength of the PLA/PCL/nHA biocomposites decreased with increasing nHA concentration. The PLA/PCL/nHA biocomposites with 10% nHA had the highest mechanical properties with a density of 1.39 g/cm3, a porosity of 1.93%, a flexural strength of 55.35 MPa, and a tensile strength of 30.68 MPa.

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Section: Resultsmentioning

confidence: 99%

Characterization of PLA/PCL/Nano-Hydroxyapatite (nHA) Biocomposites Prepared via Cold Isostatic Pressing

et al. 2023

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Extraction of Fiber from Schoenoplectus acutus Plant and Characterization of Its Properties

Assefa,

Admas,

Haile

2024

Advances in Materials Science and Engineering

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This work aims to extract and characterize the fibers from the Schoenoplectus acutus plant and assess their suitability for use as textile fibers. The fibers from Schoenoplectus acutus plants were extracted using alkaline extraction, water retting, and manual methods; their physical, mechanical, and chemical properties were examined. The result showed that the fiber has a tensile strength of 254.2 MPa, 302.6 MPa, and 183.4 MPa for manual, water‐retted, and alkaline extraction methods, respectively. The mean values of fiber fineness were 1.32 ± 0.2 Tex for alkali‐extracted fibers, 1.43 ± 0.2 Tex for water‐retted fibers, and 1.64.01 ± 0.4 Tex for manually extracted fibers. The fiber contained 58% cellulose, 25.4% hemicellulose, and 13% lignin for manual extracted fibers, whereas fibers obtained from the water‐retted method had 62.8% cellulose, 20.3% hemicellulose, and 10% lignin. Similarly, alkaline extracted fibers contained 60.2% cellulose, 17.8% hemicellulose, and 6.8% lignin. Generally, the extracted fiber has acceptable mechanical properties, linear density, and moisture regain, which can serve as an alternative source of textile fibers.

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Thermal Degradation Analysis on 4-year-old Culms of Cultivated Tropical Bamboo Bambusa Vulgaris

Cited by 2 publications

References 21 publications

Characterization of PLA/PCL/Nano-Hydroxyapatite (nHA) Biocomposites Prepared via Cold Isostatic Pressing

Characterization of PLA/PCL/Nano-Hydroxyapatite (nHA) Biocomposites Prepared via Cold Isostatic Pressing

Extraction of Fiber from Schoenoplectus acutus Plant and Characterization of Its Properties

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