The influence of barium sulfate ( BaSO4) filler on the woven natural fiber Aloevera/Hemp/flax hybrid composites behavior is studied. The hybrid composite mechanical behaviors are characterized by tensile, impact and flexural testing. The viscoelastic properties are assessed (DMA) by storage modulus (E′), loss modulus (E″) and damping factor (Tan δ). The heterogeneity of the hybrid composite is analyzed by cole cole plot. The scanning electron microscope fractographical images reveal the fiber fracture, fiber pullout, voids and dispersion of BaSO4 particles. The obtained result shows that the effect of BaSO4 inAHB(Aloevera/Hemp/ BaSO4) composite minimizes the flexural modulus by 18% and fail to exhibit the significant improvement in the FHB (Flax/Hemp/ BaSO4) composite (0.06%). In addition to that the filler enhances the loss modulus and damping factor of the composite. In the glass transition region the maximum storage modulus is recorded in FHB composite and minimum in AH(Aloevera/Hemp) composite. In the rubber region beyond 100 °Cthe minimum molecular mobility and stress level affect the magnitude of the storage and loss modulus. The cole cole results evidence that the type of fiber and addition of filler affects the homogeneity of the hybrid composite. ©2019 IOP Publishing Ltd.

Prabu Krishnasamy

School of Mechanical Engineering

Chennai Campus

Rajamurugan G

Department of Manufacturing Engineering

Vellore Campus

Arulmurugan M

Selvakumar A.S.

Vellore Institute of Technology (VIT) is a private university located in&nbsp;Tamil Nadu, India. Founded in 1984, as Vellore Engineering College, the institution offers 20 undergraduate, 34 postgraduate, four integrated and four research programs. It has campuses in Vellore, Amravati, Bhopal and Chennai.

VIT is one of the top ranked private universities in India according to NIRF, THE and QS Rankings.&nbsp;Govt. of India has recognized&nbsp;VIT, Vellore as an&nbsp;Institution of Eminence. This has allowed VIT to take independent quality initiatives and move up in world ranking.

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VIT University

Materials Research Express

The natural fibre-reinforced polymeric composites attract the manufacturing industries due to their recyclability, cost-effectiveness and eco-friendly nature. The natural hybrid reinforced polymeric (HNRP) composite overcomes the limitations in mechanical properties of the mono-natural fibre-reinforced composites. In this research work, the effect of barium sulphate (BaSO 4) on the mechanical characterization of HNRP (aloevera/flax/barium sulphate) composites was examined as per ASTM standard. BaSO 4 is preferred as a filler based on the absence of self-motion, high density and high melting point (1580∘C). The thermal stability of the HNRP composite was determined by thermogravimetric analysis (Model: TG/DTA 6200). The water absorption and dynamic mechanical properties of the HNRP composites were estimated. The fractography images were analysed to recognize the fractured surface morphology using a scanning electron microscope. The HNRP5 composite has the maximum tensile strength of 34.72 MPa, predominantly based on the interlocking of the flax fibre and plasticity of the composite improved by the influence of BaSO 4. The impact strength decreased noticeably with the addition of barium sulphate in the composite. The weight reduction of around 7–9% was observed in the temperature range of 100–200∘C. The mono-composites (HNRP1&amp;2) absorbed, respectively, 4.8 and 3.5% of moisture; with the addition of BaSO 4, the same combination absorbed 4.2 and 3.2% of water content, which was due to the low water absorption capability of BaSO 4. The storage modulus of the HNRP5 composite has maximum magnitude in the glassy region and minimum in the rubber region. © 2020, Indian Academy of Sciences.

Bulletin of Materials Science

Effect of barium sulphate on mechanical, DMA and thermal behaviour of woven aloevera/flax hybrid composites

Adding different reinforcements to the polymer composite is gaining more importance in the manufacturing industries because of their variation in mechanical properties. To satisfy modern industrial requirements, the mono-fiber polymer composites are substituted by hybrid composites in civil and automotive applications. The present work is to develop and investigate the hybrid composite behavior reinforced with AISI 304 (500 µm) wire mesh and jute fiber with epoxy LY556 resin. To analyze the mechanical properties of hybrid composites, two different orientations (45° and 90°) of wire mesh are selected and stacked with jute fiber by hand lay-up method. The wire mesh composite or hybrid composite is subjected to mechanical characterization like tensile, flexural, impact, and interlaminar. Subsequently, the viscoelastic behavior of the wire mesh composite is observed in terms of storage modulus (E′), loss modulus (E″), and damping factor (tan δ) by the dynamic mechanical analyzer (DMS 6100). The fractured surface microstructure of the wire mesh composite is analyzed by scanning electron microscope. The 45° oriented wire mesh composite sample shows better mechanical properties in ultimate tensile strength (20.55 MPa), flexural strength (0.145 kN), percentage of elongation (2.83%), and interlaminar strength (0.120 kN). At the transition region, the peak energy absorption of 0.622 is observed in the 90° oriented wire mesh composite sample at 0.5 Hz frequency. © The Author(s) 2019.

Journal of Industrial Textiles

Dynamic mechanical characteristics of jute fiber and 304 wire mesh reinforced epoxy composite

In the structural applications, the composite material employs a significant contribution in various industrial applications. In this paper, the experimental nonlinear viscoelastic behavior, tensile and flexural strength properties are analyzed in aloevera /hemp/flax natural fiber sandwich laminate composites (NSLC) with the addition of barium sulfate filler. The dynamic mechanical properties such as storage modulus (E′), loss modulus (E″) and damping factor (Tan δ) are analyzed using dynamic mechanical analyzer as a function of temperature and frequency. The homogeneity, crosslink between the fiber and the matrix of the natural fiber sandwich laminate composite samples are analyzed by a cole-cole plot and complex modulus models. The improvement in flexural strength is observed in the NSLC4 sample (138.34 N/mm2), but the addition of barium sulfate affects the tensile strength (28.8 N/mm2). From the dynamic mechanical analyzer, it is observed that the storage modulus (E′) at the glassy region in the NSLC2 sample is 19.9% whereas in the NSLC4 sample it is 15.57%. Further, the addition of barium sulfate filler enhances the loss modulus (E″) by 28% in NSLC4 sample. The NSLC4 sample shows the better homogeneity in the cole-cole plot and high crosslink between the fiber and the matrix is observed from the complex modulus. © The Author(s) 2019.

Viscoelastic behavior of aloevera/hemp/flax sandwich laminate composite reinforced with BaSO4: Dynamic mechanical analysis

This paper presents the mechanical properties and free vibration characteristic of ZnO and TiO2 filled woven jute/epoxy composite at room temperature and subzero temperatures of (−40, −20 and 27 °C). The composite specimen is manufactured by adding nano ZnO and TiO2 filler at various weight ratios of 2%, 4%, and 6% using the hand layup technique. The presence of fillers, composite layup and environmental parameters like temperature, frequency, humidity determine the anisotropic composite damping. Here the dynamic response of a cantilever jute/epoxy composite is performed and Young's modulus is also calculated. The dynamic response of the beam is carried out using the Oberst beam technique according to ASTM E 756 which gives the methodology for finding the free vibration characteristics like damping and natural frequency properties at a lower frequency using an impact hammer test set up. The static mechanical properties like tensile strength, compressive strength, flexural strength, ILSS, the impact strength of composite with and without filler is found at room temperature and subzero temperature. The glass transition temperature Tg of the composite is also found out from the DTA curves. Water absorption, one of the environmental parameters of the composite is determined as the composite specimen is natural fibre reinforced. The experimental results showed that the mechanical properties are improved by the addition of fillers. The failure mechanism of the composites is also discussed with the help of SEM images. © 2018 Elsevier Ltd

Polymer Testing

Static and dynamic behavior of jute/epoxy composites with ZnO and TiO2 fillers at different temperature conditions

Composite Structures

Comparison of filler-dependent mechanical properties of jute fiber reinforced sheet and bulk molding compound

Composites Part B: Engineering

Experimental analysis of the linear and nonlinear vibration behavior of flax fibre reinforced composites with an interleaved natural viscoelastic layer

Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications

Thermal and dynamic mechanical analysis of hybrid jute/sisal fibre reinforced epoxy composite

Fibers and Polymers

An Investigation on Wear and Dynamic Mechanical behavior of Jute/Hemp/Flax Reinforced Composites and Its Hybrids for Tribological Applications

Impact of BaSO4 filler on woven Aloevera/Hemp hybrid composite: Dynamic mechanical analysis

Journal	Data powered by TypesetMaterials Research Express
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ISSN	20531591
Open Access	No