Preparation and characterization of green composites based on expanded polystyrene waste and biomass: Sustainable management approach

Bollakayala, Vijaya Lakshmi; Etakula, Nagabhushan; Vuba, Kiran Kumar; Manne, Yaswanth Sai; Uttaravalli, Appala Naidu

doi:10.1016/j.matpr.2022.05.275

Cited by 6 publications

(5 citation statements)

References 17 publications

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“…This finding suggests that as sawdust content increases, so does WPCs' tendency to absorb more water 135 . Bollakayala et al made WPC from sawdust and waste expanded polystyrene using compression molding 136 . In order to generate composites, expanded polystyrene (EPS) waste with a particle size of up to 1400 μm and sawdust with a particle size of up to 500 μm were mixed together in varying proportions.…”

Section: Processing Methods For Natural Fiber Polymer Compositesmentioning

confidence: 99%

“…Water absorption was 7%–18%. Composites with 50% or more thermoplastic content had better physical properties 136 …”

Section: Processing Methods For Natural Fiber Polymer Compositesmentioning

confidence: 99%

“…135 Bollakayala et al made WPC from sawdust and waste expanded polystyrene using compression molding. 136 In order to generate composites, expanded polystyrene (EPS) waste with a particle size of up to 1400 μm and sawdust with a particle size of up to 500 μm were mixed together in varying proportions. After being preheated to an approximate temperature of 160 C, the material was subjected to compression for 5 min at a specified pressure ranging from 2.5 to 10 MPa.…”

Section: Compression Molding (Cm)mentioning

confidence: 99%

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A review on natural fiber composites: Polymer matrices, fiber surface treatments, fabrication methods, properties, and applications

Mylsamy,

Shanmugam,

Aruchamy

et al. 2024

Polymer Engineering & Sci

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High performance and durability are essential for goods to satisfy the needs of the expanding worldwide market. Wood plastic composites (WPCs) are materials made from a combination of wood, polymers, and additives. WPCs can be extruded, injected, compressed, or thermoformed. Presently, WPCs are manufactured using sophisticated processes including as laser sintering, fused layer modeling, and additive manufacturing. Properly managing the melt temperature and pressure is crucial in the manufacturing process of WPCs to ensure effective polymer incorporation. Natural fibers have distinct benefits for polymer composites, but they also have some serious drawbacks, like lower strength properties—especially lower impact strength than synthetic fibers—poor compatibility with hydrophobic polymers, poorer dimensional stability and moisture absorption due to hydroxly groups, a maximum processing temperature that is limited, thermal degradation above 200–220°C, and lower biological durability. The modification of the surface of the fibers improves the mentioned disadvantages of the natural fibers. High‐quality WPCs require the application of chemical or physical treatment to the wood fibers. This extensive review focused on the modification techniques applied to the surface of wood, manufacturing processes, and properties and applications of WPCs.Highlights Modification methods used in surface treatment of natural fibers was explained. Properties and recent applications of wood polymer composites were given. Optimum requirements of natural fibers and polymer matrices are given. Fabrication methods of natural fiber composites are extensively given.

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Section: Processing Methods For Natural Fiber Polymer Compositesmentioning

confidence: 99%

“…Water absorption was 7%–18%. Composites with 50% or more thermoplastic content had better physical properties 136 …”

Section: Processing Methods For Natural Fiber Polymer Compositesmentioning

confidence: 99%

Section: Compression Molding (Cm)mentioning

confidence: 99%

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A review on natural fiber composites: Polymer matrices, fiber surface treatments, fabrication methods, properties, and applications

Mylsamy,

Shanmugam,

Aruchamy

et al. 2024

Polymer Engineering & Sci

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“…2,3 In addition, developing green composite with high biomass content is crucial to realizing the carbon reduction strategy. 4 Biomass materials, including cellulose, protein, starch, agricultural by-products, or waste, 5 and synthetic biodegradable polymer materials are potential candidates. The world has rich forestry resources, and about 20%–30% of the total sawdust and wood flour (WF) are produced when wood is processed.…”

Section: Introductionmentioning

confidence: 99%

Effects of the molecular weight of soft segment of polycaprolactone polyurethane prepolymer on the properties of polyurethane composites with high wood content

Jiang

Koranteng

Xiao

et al. 2023

Journal of Thermoplastic Composite Materials

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Developing green composite with high biomass content is one crucial way to realize the strategy of ‘carbon reduction’. The type of polyurethane prepolymer and its soft segment’s structure have an important influence on the structure and properties of composite materials. This work focused on preparing different kinds of wood powder-polyurethane prepolymer (WCLPU) composite with high biomass content to study the effects of the molecular weight of the soft segment of the polyurethane prepolymer (PCLPU) on the structure and properties of the composites. The results showed that the composite materials with 70 wt% wood content exhibited high strength and good bending performance. Specifically, with decreasing molecular weight of the PCLPU soft segment, the bending strength and bending modulus of the modified WCLPU composite also increased. This work has laid a foundation for studying the effects of the molecular weight of the PCLPU soft segment on the structure and properties of composite materials.

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“…[7][8][9][10][11] In recent years, green composites have been developed from renewable sources. [12][13][14] The thrust to use eco-sustainable green composites is increasing due to their green marketing, newer recycling policies, societal impact, and improvements in cognitive values. [15] The green composite materials are being designed and fabricated to replace conventional products sustainably and responsibly in automobile, aerospace, sporting goods, construction industry, and marine applications.…”

Section: Introductionmentioning

confidence: 99%

Recent Advances in Green Composites and Their Applications

Naik¹,

Shivamurthy²,

B.H.S³

et al. 2022

Eng. Sci.

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Conventional petroleum-based toxic and non-biodegradable composites in comparison with natural fiber composites and hybrid natural fiber composites find attraction in the automobile industry, manufacturing, aerospace, sporting goods, construction, and marine applications due to the lower ecological risks. Green composites have the challenge of replacing conventional materials like steel, wood, and non-biodegrading polymers. Specific material features of green composites for particular loading and load-bearing applications are reviewed including the properties and performances of various potential biopolymers and natural reinforcement elements. The applications of green composites in short lifespan products, sporting equipment, and the biomedical field are highlighted with detailed examples.

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Preparation and characterization of green composites based on expanded polystyrene waste and biomass: Sustainable management approach

Cited by 6 publications

References 17 publications

A review on natural fiber composites: Polymer matrices, fiber surface treatments, fabrication methods, properties, and applications

A review on natural fiber composites: Polymer matrices, fiber surface treatments, fabrication methods, properties, and applications

Effects of the molecular weight of soft segment of polycaprolactone polyurethane prepolymer on the properties of polyurethane composites with high wood content

Recent Advances in Green Composites and Their Applications

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