Evaluation of the Mechanical and Biocidal Properties of Lapacho from Tabebuia Plant as a Biocomposite Material

Stepczyńska, Magdalena; Pawłowska, Alona; Moraczewski, Krzysztof; Rytlewski, Piotr; Trafarski, Andrzej; Olkiewicz, Daria; Walczak, Maciej

doi:10.3390/ma14154241

Cited by 8 publications

(6 citation statements)

References 49 publications

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“…When using natural fibers as a reinforcement in polymer-based materials, it is important to remember that the temperature during extrusion and injection molding plays a vital role in determining the mechanical properties of the composites. High temperatures can cause the natural fibers to degrade, leading to undesirable effects such as discoloration or a decrease in mechanical strength [ 21 , 46 ].…”

Section: Resultsmentioning

confidence: 99%

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Novel Biocomposite of Starch and Flax Fiber Modified with Tannic Acid with Biocidal Properties

Stepczyńska,

Rytlewski,

Moraczewski

et al. 2024

Polymers

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The purpose of this paper was to develop novel biocomposites with biocidal properties in microorganisms, with enhanced mechanical strength and hydrophobicity as well as with increased biodegradation rates. The main idea and the novelty of this work was to use cross-linking compounds and, at the same time, biocidal compounds—natural compounds of plant origin with biocidal properties. The authors assumed that the modification of flax fiber by natural plant compound will reduce the hydrophilicity of novel biocompositie. Biopolymer based on thermoplastic starch reinforced with flax fibres modified with tannic acid (TA) was prepared by extrusion and injection molding processes. The effects of TA modification on the mechanical and structural properties of biocomposites were analyzed through DMA, tensile tests, DSC, and TG. The biocidal and wettability properties of the biocomposites were investigated. The article also discusses the outcomes of research conducted on the structural characteristics and rates of the biodegradation of biocomposites.

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Section: Resultsmentioning

confidence: 99%

“…Finally, the fibers were dried for 24 h at 60 °C. According to the text, this method of fiber treatment was based on a patent [ 40 ].…”

Section: Methodsmentioning

confidence: 99%

Novel Biocomposite of Starch and Flax Fiber Modified with Tannic Acid with Biocidal Properties

Stepczyńska,

Rytlewski,

Moraczewski

et al. 2024

Polymers

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“…This result agreed by theoretically, where brittle materials tend to have high Young's modulus because of the ability of a material to withstand changes in length under lengthwise tension. Adding the reinforcement fibre contribute to decrease the impact strength might be due to low adhesion between the reinforcement and matrix [9].…”

Section: Results and Discussion A Tensile Test (Astm Dt 3039)mentioning

confidence: 99%

Effects of Reinforcement Ratio on Physical and Mechanical Properties of Corn Silk Reinforced Epoxy Composite

Zainudin,

Mohd Halid,

Manap

et al. 2023

ETJ

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Corn silk known as the waste product that can contribute to bad pollution neither air nor land. Therefore, corn silk was introduced as a nature fibre reinforcement in composite which can contribute to the positive environmental issues while developing new composite materials. 4 samples were fabricated by different composition at 0% to 6vol% employing the hand lay-up technique by mixing the natural fibre with epoxy and hardener at fixed ratio. The objective of this experiment was to fabricate the sample of composite materials with different reinforcement ratio of corn silk with epoxy and study their effects on physical and mechanical properties. Sample size prepared following ASTM DT 3039 standard (250mm X 25mm X 3mm) for tensile test. Tests conducted shows that the hardness were increase while the density value were fluctuating by increasing corn silk reinforcement ratio. The highest hardness and density values reflect on 6 vol% with 20.5 HV and 2 vol% with 1.22 g/cm3 respectively. The result revealed the highest strength achieved by 0% of fibre with 22.6458 MPa and lowest at 6% of fibre with 13.2146 MPa. Moreover, the highest strain achieved by 0% of fibre with 1.085% and lowest at 6% of fibre with 0.6894% the pattern of result shows the value of strength and strain is increasing by decreasing the percentage of the fibre. The highest value of young's modulus achieved by 0% of fibre with 21.9742 MPa and for the lowest value of young's modulus at 6% of fibre with 18.8985 MPa.

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“…These studies lasted 8 weeks. Due to our studies [ 311 ], the increase of bark content in biocomposite leads to the increase of the percent mass loss which proves higher biodegradability of biocomposite. The same dependence has been noticed during the mechanical studies.…”

Section: Lapacholmentioning

confidence: 90%

Natural Biocidal Compounds of Plant Origin as Biodegradable Materials Modifiers

Pawłowska

Stepczyńska

2021

J Polym Environ

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The article presents a literature review of the plant origin natural compounds with biocidal properties. These compounds could be used as modifiers of biodegradable materials. Modification of polymer material is one of the basic steps in its manufacturing process. Biodegradable materials play a key role in the current development of materials engineering. Natural modifiers are non-toxic, environmentally friendly, and renewable. The substances contained in natural modifiers exhibit biocidal properties against bacteria and/or fungi. The article discusses polyphenols, selected phenols, naphthoquinones, triterpenoids, and phytoncides that are natural antibiotics. Due to the increasing demand for biodegradable materials and the protection of the natural environment against the negative effects of toxic substances, it is crucial to replace synthetic modifiers with plant ones. This work mentions industries where materials containing natural modifying additives could find potential applications. Moreover, the probable examples of the final products are presented. Additionally, the article points out the current world’s pandemic state and the use of materials with biocidal properties considering the epidemiological conditions.

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Evaluation of the Mechanical and Biocidal Properties of Lapacho from Tabebuia Plant as a Biocomposite Material

Cited by 8 publications

References 49 publications

Novel Biocomposite of Starch and Flax Fiber Modified with Tannic Acid with Biocidal Properties

Novel Biocomposite of Starch and Flax Fiber Modified with Tannic Acid with Biocidal Properties

Effects of Reinforcement Ratio on Physical and Mechanical Properties of Corn Silk Reinforced Epoxy Composite

Natural Biocidal Compounds of Plant Origin as Biodegradable Materials Modifiers

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