Physical methods for the modification of the natural fibers surfaces

Tanasă, Fulga; Teacă, Carmen‐Alice; Nechifor, M; Stanciu, Magdalena Cristina

doi:10.1016/b978-0-12-821863-1.00006-5

Cited by 6 publications

(4 citation statements)

References 96 publications

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“…Reported physical modification methods include low- and high-energy radiative methods (X-rays, ionizing radiations, gamma radiations, and e-beams), electrical discharges (thermal or non-thermal plasma, corona discharges, and dielectric barrier discharges), UV and vacuum UV treatments, etc. [ 139 ]. These methods resulted in surface-modified fibers and sometimes structurally altered fibers via chemical bond breakage [ 140 , 141 , 142 ].…”

Section: Requirements and Methods Of Polymer Modificationsmentioning

confidence: 99%

Plasma Surface Engineering of Natural and Sustainable Polymeric Derivatives and Their Potential Applications

Pillai

Thomas

2023

Polymers

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Recently, natural as well as synthetic polymers have been receiving significant attention as candidates to replace non-renewable materials. With the exponential developments in the world each day, the collateral damage to the environment is incessant. Increased demands for reducing pollution and energy consumption are the driving force behind the research related to surface-modified natural fibers (NFs), polymers, and various derivatives of them such as natural-fiber-reinforced polymer composites. Natural fibers have received special attention for industrial applications due to their favorable characteristics, such as low cost, abundance, light weight, and biodegradable nature. Even though NFs offer many potential applications, they still face some challenges in terms of durability, strength, and processing. Many of these have been addressed by various surface modification methodologies and compositing with polymers. Among different surface treatment strategies, low-temperature plasma (LTP) surface treatment has recently received special attention for tailoring surface properties of different materials, including NFs and synthetic polymers, without affecting any of the bulk properties of these materials. Hence, it is very important to get an overview of the latest developments in this field. The present article attempts to give an overview of different materials such as NFs, synthetic polymers, and composites. Special attention was placed on the low-temperature plasma-based surface engineering of these materials for diverse applications, which include but are not limited to environmental remediation, packaging, biomedical devices, and sensor development.

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Section: Requirements and Methods Of Polymer Modificationsmentioning

confidence: 99%

Plasma Surface Engineering of Natural and Sustainable Polymeric Derivatives and Their Potential Applications

Pillai

Thomas

2023

Polymers

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“…Plasma treatments are highly effective and environmentally friendly, despite their drawbacks (high-energy-consuming process, expensive equipment), and are used to clean/etch or create new functional groups onto textile surfaces, to deposit thin films of nanometric thickness, or even grow nanoparticles in situ. The possibility to limit the in-depth alteration of the support is considered the main advantage of this method because it prevents the alteration of the bulk properties of the textile [21,32]. Plasma grafting and polymerization can be applied to a wide range of antimicrobial finishing reagents (quaternary ammonium salts derivatives, dichlorophenol, triclosan, chitosan, guanidine-based compounds, metal and metal oxides nanoparticles) when natural, synthetic, or blended textiles are used as support [21].…”

Section: Processing Techniquesmentioning

confidence: 99%

Highly Specialized Textiles with Antimicrobial Functionality—Advances and Challenges

Tanasă¹,

Teacă²,

Nechifor³

et al. 2023

Textiles

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Textiles with antimicrobial functionality have been intensively and extensively investigated in the recent decades, mostly because they are present in everyday life in various applications: medicine and healthcare, sportswear, clothing and footwear, furniture and upholstery, air and water purification systems, food packaging etc. Their ability to kill or limit the growth of the microbial population in a certain context defines their activity against bacteria, fungi, and viruses, and even against the initial formation of the biofilm prior to microorganisms’ proliferation. Various classes of antimicrobials have been employed for these highly specialized textiles, namely, organic synthetic reagents and polymers, metals and metal oxides (micro- and nanoparticles), and natural and naturally derived compounds, and their activity and range of applications are critically assessed. At the same time, different modern processing techniques are reviewed in relation to their applications. This paper focuses on some advances and challenges in the field of antimicrobial textiles given their practical importance as it appears from the most recent reports in the literature.

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“…For accelerated aging studies on natural-fiber-reinforced composites, the reinforcement could be chemically treated by alkaline, benzoylation, acetylation, and others [ 10 ]. The alternative to chemical treatment is the use of physical approaches on the natural fiber surface, such as cold plasma, stretching, and UV radiation [ 11 ].…”

Section: Introductionmentioning

confidence: 99%

Degradation of Mechanical Properties of Flax/PLA Composites in Hygrothermal Aging Conditions

Wang,

Abenojar,

Martínez

et al. 2024

Polymers

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The main advantage of green composites is their biodegradability, but this biodegradability can also be considered a drawback if the degradation appears during the service life of the component. Therefore, the study of the mechanical behavior of green composites after hygrothermal aging tests is necessary to analyze their degradation process. This study aims to comprehensively analyze the hygrothermal aging behavior and aging mechanism of flax-fiber-reinforced polylactic acid (PLA) biocomposites. The fully biodegradable composites are manufactured by compression molding. In addition, the influence of atmospheric-pressure plasma treatment on the mechanical properties of the biocomposite is studied. Specimens are exposed to water vapor and 40 °C environmental conditions in a stove for up to 42 days. Several specimens of each type are taken out at regular intervals and tested to examine the water absorption, mechanical properties, and thermal characterization. The results show that the stiffness was significantly reduced after 24 h due to matrix degradation, while the strength was reduced only after three weeks.

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Physical methods for the modification of the natural fibers surfaces

Cited by 6 publications

References 96 publications

Plasma Surface Engineering of Natural and Sustainable Polymeric Derivatives and Their Potential Applications

Plasma Surface Engineering of Natural and Sustainable Polymeric Derivatives and Their Potential Applications

Highly Specialized Textiles with Antimicrobial Functionality—Advances and Challenges

Degradation of Mechanical Properties of Flax/PLA Composites in Hygrothermal Aging Conditions

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