Solid waste-based hybrid natural fiber polymeric composites

Kumar, Rohit; Singh, Tejeet; Singh, Harwinder

doi:10.1177/0731684415599596

Cited by 25 publications

(13 citation statements)

References 36 publications

(37 reference statements)

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“…About 2000 different plant fibers are used in various applications, including composite materials [20]. Natural fibers were introduced as replacements of inorganic ones in plastic composites because they have good mechanical (Table 1) and biochemical properties, are nontoxic, have low density, originate from renewable resources that are eco-friendly and sustainable, and are completely biodegradable, being sensitive to moisture, fungi, and insects [21]. Plant fibers are hydrophilic, thus they have low compatibility with regular plastic materials, which are highly hydrophobic.…”

Section: Introductionmentioning

confidence: 99%

Environmental Degradation of Plastic Composites with Natural Fillers—A Review

Brebu¹

2020

Polymers

143

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Polymer composites are widely used modern-day materials, specially designed to combine good mechanical properties and low density, resulting in a high tensile strength-to-weight ratio. However, materials for outdoor use suffer from the negative effects of environmental factors, loosing properties in various degrees. In particular, natural fillers (particulates or fibers) or components induce biodegradability in the otherwise bio inert matrix of usual commodity plastics. Here we present some aspects found in recent literature related to the effect of aggressive factors such as temperature, mechanical forces, solar radiation, humidity, and biological attack on the properties of plastic composites containing natural fillers.

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Section: Introductionmentioning

confidence: 99%

Environmental Degradation of Plastic Composites with Natural Fillers—A Review

Brebu¹

2020

Polymers

143

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“…A high value of surface bonding between dispersion and matrix material is desirable for better properties such as tensile, flexural, hardness and impact properties. Therefore, many researchers (Kumar et al , 2015; Tonoli et al , 2011; Lee et al , 2008; Ahmed et al , 2013) have carried out their research on the treatment of fibers to increase the bonding with the matrix. The mechanical properties of the developed composites can be enhanced by the amount of the individual constituent and its properties and by the nature of the interfacial region between the matrix material and reinforcement.…”

Section: Methodsmentioning

confidence: 99%

“…Due to the surplus availability of industrial, agricultural, mining and domestic solid wastes from the primary process, the environmental and ecological storing and disposal problems are arises. To save the environment, solid waste materials can be used as fillers for making natural fiber polymeric composites for better mechanical and moisture properties (Kumar et al , 2015).…”

Section: Introductionmentioning

confidence: 99%

Study on flexural performance of fabricated natural fiber hybrid polypropylene composite: an experimental investigation through designed experiments

Kumar¹,

Singh

Kataria

2019

WJE

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Purpose This paper aims to investigate the flexural properties i.e. the flexural strength and the flexural modulus under the influence of selected input variables, namely; fiber type, fiber loading and fiber size in fabricated natural fiber polymeric composites through using Taguchi’s design of experiment methodology. Design/methodology/approach The Taguchi’s design of experiment approach has been used to scheme a suitable combination to fabricate the polymeric composites. Pure polypropylene (PP) has been chosen as a matrix material, whereas two types of fibers, namely; wood powder (WP) i.e. sawdust and rice husk powder (RHP), have been used as a reinforcement in the matrix. Microstructure analysis of fabricated and tested samples has also been evaluated and analyzed using a scanning electron microscope. This analysis has divulged that at moderate fiber size and higher fiber loading, no gap or cavities presented between the fillers and matrix particles, which illustrates the good interfacial bonding between the materials. Findings The flexural strength of the wood powder pure polypropylene (WPPP) composite decreases if the fiber content gets increased beyond 20 Wt.%. In addition, the flexural strength of hybrid composite (WPRHPPP) has been revealed to get improved more in comparison to composites with single fiber as reinforcement. Furthermore, the flexural modulus of WPPP composite has also increased with the increase in fiber loading. It has been concluded that reinforcement size plays an imperative role in influencing the flexural modulus. The optimum parametric setting for the flexural strength and the flexural modulus has been devised as; fiber type – WPRHP, fiber loading – 10 Wt.% and fiber size – 600 µm; and fiber type – WP, fiber loading – 30 Wt.% and fiber size – 1,180 µm, respectively. The microstructure images clearly revealed that during conducted flexural tests, some particles get disturbed from their bonded position that mainly represents the plastic deformation. Social implications The fabricated polymer materials proposed in the research work are green and environmentally friendly. Originality/value The natural fiber-based composites are possessing wide-spread requirements in today’s competitive structure of manufacturing and industrial applications. The fabrication of the natural fiber-based composites has also been planned through the designed experiments (namely; Taguchi Methodology- L9 orthogonal array matrix), which, further, makes the analysis more fruitful and qualitative too. The fabricated polymer materials proposed in the research work are green and environmentally friendly. Shisham WP has been rarely used in the past researches; therefore, this factor has been included for the present work. The injection molding process is used to fabricate the three different polymer composite by varying the fiber weight percentage and fiber size.

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“…Plant fibers are mainly composed of cellulose, hemicellulose, lignin and pectin [47]. In contrast, animal fibers consist of proteins, such as keratin or fibroin and, mineral fibers are mostly based on asbestos [47][48][49].…”

Section: Natural Fibersmentioning

confidence: 99%

Natural Fiber-Stabilized Geopolymer Foams—A Review

et al. 2020

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The development of sustainable, environmentally friendly insulation materials with a reduced carbon footprint is attracting increased interest. One alternative to conventional insulation materials are foamed geopolymers. Similar to foamed concrete, the mechanical properties of geopolymer foams can also be improved by using fibers for reinforcement. This paper presents an overview of the latest research findings in the field of fiber-reinforced geopolymer foam concrete with special focus on natural fibers reinforcement. Furthermore, some basic and background information of natural fibers and geopolymer foams are reported. In most of the research, foams are produced either through chemical foaming with hydrogen peroxide or aluminum powder, or through mechanical foaming which includes a foaming agent. However, previous reviews have not sufficiently addresses the fabrication of geopolymer foams by syntactic foams. Finally, recent efforts to reduce the fiber degradation in geopolymer concrete are discussed along with challenges for natural fiber reinforced-geopolymer foam concrete.

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Solid waste-based hybrid natural fiber polymeric composites

Cited by 25 publications

References 36 publications

Environmental Degradation of Plastic Composites with Natural Fillers—A Review

Environmental Degradation of Plastic Composites with Natural Fillers—A Review

Study on flexural performance of fabricated natural fiber hybrid polypropylene composite: an experimental investigation through designed experiments

Natural Fiber-Stabilized Geopolymer Foams—A Review

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