Effect of Plasma Treatment on Structure, Wettability of Jute Fiber and Flexural Strength of its Composite

Abstract

The aim of this article is to study the influence of physical treatment on morphology, wettability, fine structure of fibers and its impact on the interfacial adhesion of natural fiber-reinforced thermosets. For that purpose, jute fibers were treated with argon cold plasma for 5, 10, and 15 min and processed for composite with unsaturated polyester resin. Scanning electron microscopy (SEM) micrograph had shown the rough surface morphology and degradation of fiber due to etching mechanism causes by plasma. Surface properties of fibers before and after treatment were determined by mean of contact angle determination and fine structural details by Fourier transform infrared-spectroscopy (FT-IR). Plasma treatment resulted in the development of hydrophobicity in fibers, that is contact angle were found increasing with water. This could be due to the decrease in phenolic and secondary alcoholic groups or oxidation of basic structural component, lignin and hemicelluloses after plasma treatment as studied by FTIR. Rough surface morphology and development of hydrophobicity of fiber after plasma treatment resulted in the better fiber/matrix adhesion as revealed from SEM micrograph of plasma treated fiber composite. However, among all treated fiber composite, flexural strength of composite prepared with 10 min plasma treated fiber only had shown improve mechanical strength of ~14% in compare to raw fiber composite.

Polyester Composites Reinforced With Maleic Anhydride-Treated Filaments From Mauve

“…Another important factor that contributed to the good performance of the composites reinforced with mauve is the amount of cellulose, which is responsible for the strength of the fibers. These fibers Sinha and Panigrahi (2009) also observed a decrease of mean values for bending strength in polyester composites when the jute fibers were exposed to plasma 5 and 15 minutes. For the tensile strength property the composites with mauve treated and untreated do not showed difference.…”

“…The bending strength of the interaction depends not only on the fiber/matrix cohesion, but also of the properties of the fibers/filaments. The chemical treatments possibly degraded the fibers and decreased the average values of their properties (Sinha and Panigrahi, 2009). This effect was also observed by Hundahausen et al (2015) that modified fibers with Maleic anhydride.…”

Influence of Synthetic and Natural Fibers on Dewatering Rate and Shear Strength of Slurries in Geotextile Tube Applications

“…This geotextile has an apparent opening size (AOS) and permittivity compatible with the Tully fines soil when flocculated. Tully fines which are not flocculated were observed to pass directly through the geotextile as a Obtained from Biswas et al [11] b Obtained from Sinha and Panigrahi [12] expected. The physical and hydraulic geotextile properties are presented in Table 2.…”

“…Furthermore, recent studies have been conducted using natural fibers to increase shear strength of soils [4,9,[11][12]. Natural fibers are believed to act in the same way as synthetic fibers, while providing an environmentallyfriendly alternative.…”

“…Few studies have been conducted in which the fibers were added to the sample in the slurry form. Moreover, many of these studies used triaxial tests, consolidated drained (CD) or undrained (CU), and/or direct shear tests to determine the benefits of using randomly distributed fibers on the shear strength of soils [4][5][6][8][9][10][11][12]. Generally, it has been observed that there is significant increase in shear strength, as well as a reduction in post-peak strength losses with fiber additions.…”