ArticlePublisher preview available

Synergistic effect on the mechanical, thermal, and tribology characteristics of modified natural fibre composites with perforated waste PET

Springer Nature
Biomass Conversion and Biorefinery
Authors:
To read the full-text of this research, you can request a copy directly from the authors.

Abstract and Figures

The present study investigates mechanical, thermal, and tribological characteristics with the influence of novel composite material of perforated polyethylene terephthalate (PET) polymer, distinct natural fibre, and vinyl ester matrix produced by compression moulding technology. The primary objective of this study is to identify and influence the strength of vinyl ester resin bonding features of three distinct natural fibre sources: banyan, snake grass, and pineapple with recycled PET plastic bottles polymer composites. The natural fibre is undergoing chemical treatments using NaOH (7% alkali) in order to remove the impurities and enhance the strength of the composite material. The mechanical characteristics of the produced composites (PC1, PC2, PC3) were assessed using tensile, flexural, and impact tests. The study also encompasses an investigation of thermogravimetric analysis conducted on natural fibre/PET/vinyl ester composites, demonstrating the impact of distinct fibre with PET polymer on thermal characteristics. Moreover, specific wear rate and coefficient of friction analysis explore the distinct character of developed composites. Using natural fibre reinforced/vinyl ester composites in conjunction with PET offers a promising avenue for achieving lightweight structural applications due to the PET composite's favourable mechanical properties and heat resistance.
This content is subject to copyright. Terms and conditions apply.
Vol.:(0123456789)
Biomass Conversion and Biorefinery
https://doi.org/10.1007/s13399-024-06214-9
ORIGINAL ARTICLE
Synergistic effect onthemechanical, thermal, andtribology
characteristics ofmodified natural fibre composites withperforated
waste PET
T.Ganapathy1· M.Thirukumaran2 · S.Arivuazhagan3· P.Senthamaraikannan4· K.Senthilkumar5· P.Sivasamy1
Received: 10 June 2024 / Revised: 13 September 2024 / Accepted: 26 September 2024
© The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2024
Abstract
The present study investigates mechanical, thermal, and tribological characteristics with the influence of novel composite
material of perforated polyethylene terephthalate (PET) polymer, distinct natural fibre, and vinyl ester matrix produced by
compression moulding technology. The primary objective of this study is to identify and influence the strength of vinyl
ester resin bonding features of three distinct natural fibre sources: banyan, snake grass, and pineapple with recycled PET
plastic bottles polymer composites. The natural fibre is undergoing chemical treatments using NaOH (7% alkali) in order to
remove the impurities and enhance the strength of the composite material. The mechanical characteristics of the produced
composites (PC1, PC2, PC3) were assessed using tensile, flexural, and impact tests. The study also encompasses an inves-
tigation of thermogravimetric analysis conducted on natural fibre/PET/vinyl ester composites, demonstrating the impact of
distinct fibre with PET polymer on thermal characteristics. Moreover, specific wear rate and coefficient of friction analysis
explore the distinct character of developed composites. Using natural fibre reinforced/vinyl ester composites in conjunction
with PET offers a promising avenue for achieving lightweight structural applications due to the PET composite's favourable
mechanical properties and heat resistance.
Keywords Perforated polyethene terephthalate· Natural fibre· Alkalization· Thermogravimetric· Mechanical· Tribology
1 Introduction
Composite materials have witnessed exponential growth
in various industrial applications ranging from aerospace
to automobile and construction. Composites made from
manufactured materials typically include synthetic fibres
like glass or carbon, which are strong but harm the environ-
ment [1]. As global sustainability concerns growth, there
is an increasing focus on developing eco-friendly materi-
als that deliver performance and have a minimal environ-
mental impact [2]. Natural fibres extracted from plants
have emerged as a promising alternative to manufactured
fibres, which are abundant, renewable, and have favourable
mechanical properties. Additionally, using recycled plastics
with matrix materials can contribute to waste management
efforts [3]. PET is a widely used plastic, especially in pack-
aging and textiles, but it is also a major contributor to plas-
tic pollution. Valorizing PET helps in reducing waste and
mitigating environmental pollution by recycling and reusing
materials rather than sending them to landfills or incinerat-
ing them. Valorizing PET or fibres often involves developing
* M. Thirukumaran
mkthirukumaran@gmail.com
1 Department ofMechanical Engineering, P.S.R. Engineering
College, Appayanaickenpatti, Sivakasi, TamilNadu646140,
India
2 Department ofMechanical andAutomation Engineering,
PSN College ofEngineering andTechnology, Melathediyoor,
TamilNadu627152, India
3 Department ofMechanical Engineering, KPR
Institute ofEngineering andTechnology, Coimbatore,
TamilNadu641407, India
4 Department ofMechanical Engineering, K.S.R College
ofEngineering, Thiruchengode, TamilNadu637215, India
5 Department ofMechanical Engineering, PSG Institute
ofTechnology andApplied Research, Coimbatore,
TamilNadu641062, India
Content courtesy of Springer Nature, terms of use apply. Rights reserved.
... N2 has 38.89% less wear than N1 and 35.29% less than N3. This significant drop suggests that the N2 composite has improved wear resistance under moderate loading circumstances, making it a potential material for durable applications [14,31]. In 30 N load, the N2 composite showed higher wear resistance at 30 N stress, with a height loss of 68 ± 2.6 m. ...
Article
Full-text available
The quest for novel and sustainable fibres presents a significant challenge in researching composite materials. In this study, the viability of weaver bird nests has been investigated as a hybrid fibre source for composite production. Each nest has exhibited unique variations in fibre composition and structure, reflecting the availability of diverse fibres in their respective environments. These nests are meticulously integrated with an epoxy resin matrix to create composites (designated as N1, N2, and N3). Mechanical properties such as tensile strength, flexural strength, hardness, water absorbency, and low-impact resistance have been evaluated to assess the performance of hybrid fibre composite materials. Additionally, wear testing is conducted using a pin-on-disc machine with varying loads (20, 30 and 40 N) and a fixed radius of 50 mm. Interestingly, the nest collected from the village, comprising five different plant fibres, has demonstrated superior mechanical and tribological properties (N2) compared to other nest fibres. Conversely, the N1 and N3 composites have exhibited diminished mechanical performance, attributed to a limited variety of fibres and a looser braiding structure. These findings suggest that the natural Voronoi design of hybrid bundle fibres holds promise as a potential source for polymer composites. However, the study emphasizes the critical role of fibre selection and the potential benefits of exploring natural sources for advanced composite materials development. Furthermore, this research underscores the importance of sustainable fibre procurement and illustrates the potential of biomimicry in the research of composite materials.
Article
Full-text available
The agriculture plant Cannabis sativa (hemp) is used to create composite panels for the automotive industry because of its high strength-to-weight ratio. The purpose of this research is to investigate the effect of fiber length (10–30 mm), content (10–30 wt%), and alkali treatment (3%) on the mechanical properties of these hemp/vinyl ester composites. Tensile, flexural, impact, and hardness tests, dynamic mechanical analysis, as well as tribology behavior, were performed on the untreated and alkali-treated hemp/vinyl ester composites. The band around 3100–3700 cm⁻¹ in NaOH-treated hemp-reinforced composites can be attributed to hydrogen-bonded OH stretching vibrations from the chemically bonded OH groups of the cellulose structure. So, the crystallinity of NaOH-treated hemp was increased when compared with untreated hemp fiber composites. The mechanical properties were increased by increasing the fiber content to 30 wt% and the length to 30 mm. Because of the alkali treatment, the transition peak occurred in the range of 73 to 135 °C for untreated and 80 to 1350 °C for alkali-treated composites. In tribological experiments, the applied load influenced the coefficient of friction (COF), followed by its fiber content. However, the synergistic effect of sliding distance and fiber length has resulted in a decreased wear rate. These findings suggest that hemp fiber has the potential to be employed as a reinforcing material in a variety of structural and non-structural applications.
Article
Full-text available
In this research, a novel cellulosic fiber from the Cannonball tree was extracted and alkalized. The alkalisation was done for 45 min using a 5% NaOH solution. The cellulose percentage of the alkalized fiber was elevated to 69.23% from 54.96%. The increase in the crystallinity index (72.73% from 65.29%) of alkalized fiber was recognized via XRD analysis. Thermogravimetric analysis established that after alkalization maximal deterioration peak of (362.94 °C from 357.21 °C) and kinetic activation energy (67.5 kJ/mol from 60.33 kJ/mol) are enhanced. Lignin, wax, and impurity-free exterior layers are seen in the FE-SEM images of alkalized fiber. The absence of impurity elements in the EDX spectrum of alkalized CBFs indicated the abolishment of contaminants on the fibre’s exterior. After the NaOH treatment, CBF tensile strength (71.5 ± 25 Mpa from 42.2 ± 10.5), and tensile modulus (4.15 ± 1.572 GPa from 2.1 ± 789) were increased. All the above findings concluded that CBFs are potential materials for reinforcement in fiber-reinforced plastics.
Article
Full-text available
In this study, we compare the reinforcing efficiency of pineapple leaf fiber (PALF) and cultivated flax fiber in unidirectional poly(butylene succinate) composites. Flax, known for robust mechanical properties, is contrasted with PALF, a less studied but potentially sustainable alternative. Short fibers (6 mm) were incorporated at 10 and 20% wt. levels. After two-roll mill mixing, uniaxially aligned prepreg sheets were compression molded into composites. At 10 wt.%, PALF and flax exhibited virtually the same stress–strain curve. Interestingly, PALF excelled at 20 wt.%, defying its inherently lower tensile properties compared to flax. PALF/PBS reached 70.7 MPa flexural strength, 2.0 GPa flexural modulus, and 107.3 °C heat distortion temperature. Comparable values for flax/PBS were 57.8 MPa, 1.7 GPa, and 103.7 °C. X-ray pole figures indicated similar matrix orientations in both composites. An analysis of extracted fibers revealed differences in breakage behavior. This study highlights the potential of PALF as a sustainable reinforcement option. Encouraging the use of PALF in high-performance bio-composites aligns with environmental goals.
Article
Full-text available
In this work, the effects of graphene particles, which were used as a filler for hybrid flax fiber and aerial root banyan fiber (ARBF)–reinforced epoxy composites at different sampling compositions (M4–M7), on the physical and mechanical characteristics of the epoxy composites, such as tensile, flexural, Shore D hardness, water absorption activities, and morphology were studied. The accumulation of graphene particles improved the tensile strength, flexural strength, and hardness but significantly decreased the percentage of water absorption. The ideal ratio of fibers and graphene particles for improved epoxy hybrid epoxy composites is also discussed in this study. The presence of graphene in flax/Banyan/epoxy composites acts as a flame retardant, and the combustibility decreases as the graphene level rises. The best mechanical property value was obtained with 2% graphene particles in the 19% ARBF, 19% flax fiber with 60% (M4 constituent) epoxy-reinforced hybrid composites. The results showed that a hybrid composition of 2% graphene content plays an important role and improves the strength of the hybrid composite.
Article
Full-text available
In recent years, there has been a growing awareness and demand for global sustainability, as well as a mandate for the use of renewable and environmentally sustainable materials and processes. Due to which, massive efforts are being made to develop and nurture the next generation of composite materials that are energy efficient, environmentally friendly, and biodegradable. Light weight, lower coefficient of thermal expansion, and comparable tensile strength exhibited by natural fibers render them the choice for use in several industrial products and applications over the last decade. Natural fibers as the reinforcing entity are pitted against their synthetic variants primarily because of the superior aspects like biodegradability and excellent strength-to-weight ratio. This article presents the review on various nonconventional natural fibers such as tamarind seed and shell, Luffa cylindrica, groundnut shell, coconut coir, papaya bast, okra, and Ashoka tree seed. The flow of the chapter includes the introduction, extraction methodologies, and fabrication, and investigations of mechanical properties, applications, and sustainability are dealt in detail for nontraditional natural fibers. The okra fibers possess greater tensile strength of up to 262.8 MPa in comparison with other fibers, while the Ashoka tree seed fibers are known to possess a maximum flexural strength of up to 125 MPa. Further, these fibers are used as reinforcements in potential applications in interiors and automobile and aircraft panels and wood-based particle board composites owing to the increase in tensile and flexural strengths of composites.
Article
Full-text available
Brick is a common building material that is used in society for constructing buildings. A viable environmental strategy to lessen the amount of plastic waste involves the inclusion of plastic trash in building materials. Globally, there is a severe issue with the disposal of plastic garbage in landfills. The primary and secondary carbon bonds that are formed in plastic packaging wastes can severely contaminate the environment. Hence, managing plastic waste to generate new and useful items is essential. One of the most practical ways to safeguard the environment is to manufacture eco-bricks from PET waste and epoxy resin. Additionally, as there is no combustion involved in the production of this eco-brick; it does not harm the environment. Eco-brick can be defined as a novel concept and approach to waste management and recycling. Eco-bricks have many advantages, such as easy availability and being environmentally friendly. This study aimed to improve the composition of the eco-brick using a mixture of epoxy resin and PET particles. In this study, a mathematical modelling technique called the Response Surface Method (RSM) was designed using the Central Composite Design (CCD). Variable input factors were used to develop eco-bricks such as mixture ratio (10–90%), particle size (1–5 mm), and drying time (1–7 days), whereas the variable response included the compressive strength. The complete experimental design was developed using Design Expert 11 software, and simulation experiments with 17 sets of parameters were generated. The microstructural characteristics of the eco-brick were examined using SEM. The results of the experiments indicated that the most optimised parameters that could be used for eco-brick application were: a PET particle size of 1.1 mm, a mixing ratio of 89.9%, and a curing time of 6.9 days. Earlier research that was conducted regarding the production of eco-bricks using a PET particle and epoxy resin mixture showed that these materials had a high potential to boost compressive strength. The quadratic model was used as the basis for the regression analysis for generating the response equations. Since the difference between the experimental and anticipated values was less than 5%, it was concluded that the results of the experimental and predictive tests showed good agreement. The model used in this study yielded noteworthy outcomes. As a result, the suggested statistical model can offer a clear understanding of designing experiments and variables that affect the production of eco-brick using a blend of PET particles and epoxy resin.
Article
Full-text available
This research is manufactured composite materials from waste poly (ethylene terephthalate) reinforced with glass fiber and filled with waste window glass powder for tile application. The composite samples were prepared by the melt-mixing method followed by compression molding. The mechanical, thermal, and physical properties are investigated. To do this Charpy impact and Rockwell hardness testing machines, DSC, and Thermogravimetric analysis instruments were used. For this, it was prepared eleven samples by varying the glass fiber weight percentage from 0 to 10, matrix weight percentage from 70 to 85, and glass powder filler weight percentage from 5 to 20. The maximum impact strength (5.11 J/cm²) is recorded at 10% weight of glass fiber, 85% weight of PET matrix, and 5% weight of window glass filler. The maximum Rockwell hardness (184.2HR) and the minimum water absorption (0.048%) are also recorded at 0 weight % of glass fiber, 80 weight % of poly(ethylene terephthalate), PET, matrix, and 20 weight% of window glass filler. It can be concluded that the impact strength increased with increased weight % of glass fiber and decreased with increased window glass filler. The Rockwell hardness increased, and the water absorption decreased with increased weight % of window glass filler.
Article
Full-text available
Bauhinia vahlii (BV) is a great source of cellulosic biomass, and it is gaining popularity as a renewable resource. BV bast fiber is proposed to have the potential to replace synthetic fibers in biopolymer composites as a reinforcing material. This investigation deals with the extraction, surface modification and comprehensive characterization of BV bast fibers which could be used for the production of sustainable fiber-reinforced polymer composites. The extracted fibers were chemically treated with sodium hydroxide, sodium chlorite, and benzoyl chloride. Then, the chemical properties, mechanical properties, surface morphology and thermal properties were investigated. An improvement in chemical and mechanical properties was observed after surface modification of fibers. Benzoylation treated BV bast fibers revealed highest tensile strength of 128.56 MPa and Young’s modulus of 8.34 GPa. In addition, after treatment, the fibers had rougher surface as seen from SEM images. The surface treatments removed a specific quantity of hemicelluloses, lignin, and pectin from the natural fiber surface, according to FTIR analysis. The surface treatments had a good impact on the crystallinity index of the natural fibers, according to XRD analysis. The characterization results confirmed that BV bast fibers could be used for the production of sustainable fiber reinforced polymer composites.
Article
Full-text available
This work aims to study the physical, chemical, and thermal properties of natural fibers extracted from the Pennisetum alopecuroides plant. The study was carried out on raw and treated fibers to assess improvements that facilitate future uses in composites. The alkaline treatment was carried out using NaOH with different concentrations (1, 3, 5, and 10%) for 2 hours. Hydrothermal treatment was performed at different immersion times in a water bath at 100°C. The chemical composition of Pennisetum alopecuroides fibers, such as cellulose, hemicellulose, lignin, and ash contents, was evaluated. The structure of the fiber was analyzed by FTIR, SEM, and X-ray diffraction. Thermogravimetric analysis (TGA) is used to study the thermal stability of the fiber. The density was also investigated with the pycnometric methode. The results showed that a concentration of 3% NaOH during the 2h is the most suitable solution to treat the P.alopecuroides fiber, but the hydrothermal treatment for 1h at 100°C is also effective for this fiber. The treated fibers seem viable to be used as reinforcement for composites production, namely to achieve goals of energy efficiency.