GFRP biocomposites produced with a novel high-performance bio-based unsaturated polyester resin

Hofmann, Mateus; Shahid, Abu T.; Machado, Marina Medeiros; Garrido, Mário; Bordado, João; Correia, João R.

doi:10.1016/j.compositesa.2022.107098

Cited by 16 publications

(10 citation statements)

References 63 publications

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“…Its ability to be colored and molded into different shapes makes it a popular material for these applications. In conclusion, polyester resin is a versatile material 28 with a wide range of applications 29 due to its excellent mechanical, 30,31 thermal, 32 and chemical properties. 33 It is used in various industries, including marine, 34 construction, 35,36 automotive, electrical and electronics, textile, 37 packaging, film, fiberglass production, and insulation.…”

Section: Introductionmentioning

confidence: 99%

Optimization of safflower oil-based polyester biocomposite reinforced with diatomite: An response surface methodology approach and assessment of artificial neural network findings

Dağ

2023

Polymers from Renewable Resources

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In this investigation, the examination revolves around the characterization of diatomite-enhanced modified safflower oil (MSO)-derived polyester biocomposites. The primary objective is to explore the feasibility of these biocomposites as a substitute for petrochemical-based unsaturated polyester (UP) materials, with the overarching goal of enhancing their economic sustainability. Experimental data analysis employed Response Surface Methodology (RSM) and Artificial Neural Network (ANN), uncovering the optimal composition for the polyester biocomposite to be 6.7 wt.% MSO and 4.5 wt.% diatomite. During the RSM analysis, it was noted that the response parameters exhibited quadratic p-values, specifically, for density ( p < .0001), thermal conductivity ( p < .0001), and Shore D hardness ( p < .0003). However, higher ratios of MSO lead to decreased hardness and increased curing time. SEM images reveal a detrimental impact on the surface morphology of the polyester biocomposite when the diatomite content reaches 8 wt.%. Additionally, Fourier Transform Infrared Spectroscopy (FTIR) and Thermogravimetric Analysis (TGA) offer valuable insights into the chemical bond structure and thermal behavior of the biocomposite, respectively. The Cure Index (CI) value for the diatomite-enhanced composite was determined to be 0.925, indicating a favorable contribution to the polyester curing process. The study finds that diatomite contributes to a linear change in the thermal conductivity coefficient, making the biocomposite suitable for use in the insulation industry. Overall, the study suggests that diatomite reinforced MSO-based polyester biocomposites have the potential as an alternative to petrochemical unsaturated polyester.

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Section: Introductionmentioning

confidence: 99%

Optimization of safflower oil-based polyester biocomposite reinforced with diatomite: An response surface methodology approach and assessment of artificial neural network findings

Dağ

2023

Polymers from Renewable Resources

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“…43 The dynamic covalent bonds formed in TA/BA 0.7 /PVA 3.0 were associated with boronic ester and underwent exchange. [28][29][30][31][32][33][34][35][36][37]40,56,60 Because τ* follows the Arrhenius law, eqs 2 and 3 can be obtained using the Arrhenius equation…”

Section: ■ Results and Discussionmentioning

confidence: 99%

“…Rearrangement of the dynamic covalent bonds can occur at temperatures above T v , making the material reprocessable and reshapable . The dynamic covalent bonds formed in TA/BA 0.7 /PVA 3.0 were associated with boronic ester and underwent exchange. − ,,, …”

Section: Resultsmentioning

confidence: 99%

Robust Biobased Vitrimers and Its Application to Closed-Loop Recyclable Carbon Fiber-Reinforced Composites

Hong,

Jeong

et al. 2023

ACS Sustainable Chem. Eng.

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Vitrimers are being actively studied as sustainable plastics. To that end, robust vitrimer films fabricated from a ternary aqueous solution of tannic acid (TA), boric acid (BA), and polyvinyl alcohol (PVA) are reported herein. The trimeric vitrimer films include B−O−C dynamic covalent bonds. The optimal vitrimer film exhibits excellent crosslinking density (0.0471 mol/ cm 3 ), tensile strength (77 MPa), and modulus (3.2 GPa). A carbon−fiber-reinforced vitrimer (CFRV) was prepared with a vitrimer film and carbon fiber at temperatures above T v . The CFRV (tensile strength, 570 MPa; modulus, 21 GPa) can be used as a structural composite material. Additionally, it retains the unique recyclability and reprocessability of the vitrimer. The solution-cast film can be reproduced from the vitrimer solution prepared during recycling, and a CFRV similar to the original can be recreated by remolding the recovered carbon fiber with the reproduced vitrimer film. The synthesized biobased high-strength vitrimer films can facilitate the development of sustainable carbon−fiber-composite materials.

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“…Serat tandan kosong kelapa sawit diperoleh dari penguraian tandan kosong kelapa sawit. serat tandan kosong kelapa sawit ini mempunyai karakteristik sebagai berikut: Tabel 1. karakteristik serat tandan kosong kelapa sawit [8] Sifat Nilai massa jenis 0.47 g/cm3 tegangan tarik 1008.55 Kg/cm2…”

Section: Metode a Serat Tandan Kosong Kelapa Sawitunclassified

The Effect of Fiber Volume Fraction on the Bending Strength of Fiber-Reinforced Composites of Oil Palm Empty Fruit Bunches

Gunawan¹,

Mujianto²

2023

PELS

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In this modern era, the palm oil industry is growing, so the waste is also increasing. If the waste from the palm oil industry is not processed, it will pollute the environment. One way to process palm oil waste is to turn the empty palm fruit bunches (OPEFB) fibers into composite reinforcement. Various natural fibers can be applied to become composite reinforcement, so it is necessary to study the character of OPEFB fibers for composite reinforcement. This study will look at the effect of various volume fractions on the bending strength of the composite. The volume fraction consists of 20%, 30%, and 40% fiber. The composite is then tested for bending to determine the bending strength of the composite. The results of the tests showed that the highest bending strength value was the 30% volume fractional variation with 47.70 MPa. The 40% volume fraction variation has the lowest bending strength value of 29.53 MPa.

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GFRP biocomposites produced with a novel high-performance bio-based unsaturated polyester resin

Cited by 16 publications

References 63 publications

Optimization of safflower oil-based polyester biocomposite reinforced with diatomite: An response surface methodology approach and assessment of artificial neural network findings

Optimization of safflower oil-based polyester biocomposite reinforced with diatomite: An response surface methodology approach and assessment of artificial neural network findings

Robust Biobased Vitrimers and Its Application to Closed-Loop Recyclable Carbon Fiber-Reinforced Composites

The Effect of Fiber Volume Fraction on the Bending Strength of Fiber-Reinforced Composites of Oil Palm Empty Fruit Bunches

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