Dynamic mechanical analysis and crystalline analysis of hemp fiber reinforced cellulose filled epoxy composite

Anand, P.; Veerabathiran, Anbumalar; Duruvasalu, Rajesh; Iyyanar, Saranraj; Velumayil, Ramesh

doi:10.1590/0104-1428.00516

Cited by 54 publications

(33 citation statements)

References 56 publications

(58 reference statements)

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“…The changes in viscoelastic behavior are attributed to the increase in molecular mobility with increasing temperature. The three‐stage behavior is typical for fully crosslinked thermosetting polymer/fiber composites and has been reported by many researchers . For RWF‐filled composite (Figure ), the storage modulus is strongly dependent on the filler fraction.…”

Section: Dynamic Mechanical Behavior Of Biocompositessupporting

confidence: 63%

“…In other words, decrease in fiber length results in an increased energy absorption capacity. The latter effect inhibits the composite relaxation process thus leading to a broadening of the peaks . It also confirms that shorter fibers obviously possess a better impregnation quality and lower pore content than longer fibers.…”

Section: Dynamic Mechanical Behavior Of Biocompositesmentioning

confidence: 57%

“…As the fiber fraction increases, the loss modulus peak broadens because the incorporation of fibers in the resin leads to a higher number of chain segments. The later inhibits the composite relaxation process thus resulting in broader loss modulus peak. In addition, the loss modulus peak height is seen to increase with increase in fiber fraction.…”

Section: Dynamic Mechanical Behavior Of Biocompositesmentioning

confidence: 99%

“…In addition, the loss modulus peak height is seen to increase with increase in fiber fraction. This is attributed to the increase in rigidity of the chain segments with increase in fiber fraction and increased material heterogeneity . Ornaghi et al .…”

Section: Dynamic Mechanical Behavior Of Biocompositesmentioning

confidence: 99%

“…It is widely reported that the damping value at the transition region is dependent on mechanical relaxation of the matrix and the fiber, interfacial adhesion between the fiber and the matrix, fiber loading, and fiber length . Effects of fiber loading, interfacial adhesion, and matrix relaxation are the most studied effects in the DMAs of fiber‐filled polymer composites …”

Section: Dynamic Mechanical Behavior Of Biocompositesmentioning

confidence: 99%

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Process design for performance improvement in purely ecofriendly composites for structural applications

Akpan

Wetzel

Friedrich

2019

J of Applied Polymer Sci

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The chances of improving the properties of biocomposites lie in the efficient combination of processing and compositional parameters. Achieving required properties for a specified application will involve a systematic process design. In this study, we focus on achieving improvement in properties of the bio‐acrylic resin/wood fiber composites via a rational design of process and parameters. We aim to identify processing parameters where the wood fibers participate in the chemical reaction giving rise to a robust composite structure and consequently improved properties. First, processing variables were streamlined to arrive at an efficient, easy, and less expensive processing route. Thereafter, fiber treatment, length, aspect ratio, and weight fraction were correlated to optimize the structural properties. Composites were prepared with varying fiber weight fraction (35–60 wt %) and fiber aspect ratio (2–13.7) using raw wood fibers (RWFs) and raw cellulose fibers (RCFs) from commercial sources. Generally, it was noted that with appropriate choice of treatment and size of fillers, the curing reaction can be enhanced leading to improvement in properties. Results show that flexural strength increases with decrease in fiber aspect ratio for both treated and untreated fibers. Maximum tensile strength (96 MPa) was obtained with 45 wt % filler content and filler aspect ratio of 13.7 for untreated fibers. When compared at the same weight fraction and average fiber length, RCF composites possess about 40% improvement in flexural strength over that of RWFs. The best compromise between processing and properties of the finished ecocomposite varies with fiber aspect ratio, treatment, and weight fraction of the fillers. The study provides an insight for the development of high‐performance green composites for extended applications such as underbody panels, wheel wells, and underhood components. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020, 137, 48719.

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Section: Dynamic Mechanical Behavior Of Biocompositessupporting

confidence: 63%

Section: Dynamic Mechanical Behavior Of Biocompositesmentioning

confidence: 57%

Section: Dynamic Mechanical Behavior Of Biocompositesmentioning

confidence: 99%

Section: Dynamic Mechanical Behavior Of Biocompositesmentioning

confidence: 99%

Section: Dynamic Mechanical Behavior Of Biocompositesmentioning

confidence: 99%

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Process design for performance improvement in purely ecofriendly composites for structural applications

Akpan

Wetzel

Friedrich

2019

J of Applied Polymer Sci

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Dynamical Mechanical Thermal Analysis of Bioepoxy Polymers, Their Blends, and Composites

Romo-Uribe

2021

Bio‐Based Epoxy Polymers, Blends and Composites

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Influence of surface treatment on properties of Cocos nucifera L. Var typica fiber reinforced polymer composites

Mansingh¹,

Binoj

Siengchin

et al. 2022

J of Applied Polymer Sci

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Natural fibers are a powerful competitor in the polymer composite market due to their availability, sustainability, obtainability, cost, and biodegradability. The surface of natural fibers was changed to increase mechanical qualities, hydrophobicity, and bonding with polymer matrix. This study exposes the influence of several surface treatments of coconut tree peduncle fibers (CTPFs) on the thermomechanical and water absorption properties of CTPF-reinforced polymer composites. The CTPFs were treated with sodium hydroxide, benzoyl peroxide, potassium permanganate and stearic acid at a constant 40 wt% and individually reinforced in an unsaturated polyester resin matrix containing 60 wt% CTPFs. Chemically treated CTPFs improved reinforcement-matrix

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Dynamic mechanical analysis and crystalline analysis of hemp fiber reinforced cellulose filled epoxy composite

Cited by 54 publications

References 56 publications

Process design for performance improvement in purely ecofriendly composites for structural applications

Process design for performance improvement in purely ecofriendly composites for structural applications

Dynamical Mechanical Thermal Analysis of Bioepoxy Polymers, Their Blends, and Composites

Influence of surface treatment on properties of Cocos nucifera L. Var typica fiber reinforced polymer composites

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