Effect of fiber surface treatment on structure, moisture absorption and mechanical properties of luffa sponge fiber bundles

Chen, Yuxia; Na, Su; Zhang, Kaiting; Zhu, Shiliu; Zhu, Zhenzhen; Qin, Wenlian; Yang, Yiwen; Shi, Yunjiao; Fan, Shengli; Wang, Zhongkai

doi:10.1016/j.indcrop.2018.06.079

Cited by 98 publications

(70 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Sodium Hydroxide (NaOH) [25,44,[49][50][51] Hydrogen Peroxide (H 2 O 2 ) [27,54,55,[65][66][67] Acetic Acid (CH 3 COOH) [27,54,55] Carbamide CO(NH 2 ) [55] Methacrylamide [60,69] Benzoyl Chloride Permanganate (KMnO 4 ) [51,75] Acetic Anhydride, and Acetone [65] Furfuryl Alcohol followed by oxidation (sodium chlorite + acetic acid) [50] CaCl 2 , H 2 SO 4 , and Na 2 HPO 4 [57] Hypochlorite (NaClO) [58] Ethanol, BTDA Dianhydrides [64] HCl [56] Chlorine Bleach [46,77] CalciumPhosphate and Calcium Carbonate [78] CaOH 2 and Silane [71] Thermo-mechanical treatment and thermo-hydromechanical treatment [79] Heat treatment [80] Sodium hydroxide (NaOH)/alkaline treatment evidenced its capability in improving luffa fibers' microstructure by changing its chemical composition as well as removing all impurities [49,[59][60][61][62][63]70]. Treating luffa fibers with 4% NaOH at 120 • C for 3 h revealed the highest fiber crystallinity index and, in addition, combined chemical treatments switched luffa from a mat into a filament structure [67].…”

Section: Treatment Referencementioning

confidence: 99%

“…Contrary to other chemical solutions, methacrylamide treatment caused a serious deterioration in luffa fiber integrity [69]. Mixing NaOH with other solutions like CH 3 COOH can drastically improve LNFC mechanical performance as well as significantly decrease its water absorption; in contrast, mixing with H 2 O 2 deteriorated its mechanical characteristics [55]. The tensile strength of LNFC created with HCl treated fibers was lower than that of LNFC treated with alkaline [56].…”

Section: Treatment Referencementioning

confidence: 99%

“…However, researches have considered scanning electron microscopy most often for inspecting the fiber surface morphology, voids presence, fiber/matrix interaction, and so on. Few researches scanned pure luffa samples [55,67,69], while others involved the following matrices: epoxy [44,50,51,59,[61][62][63]89,91], polyester [60,66,96], polypropylene [68], vinyl ester [64], geopolymer [100], pre-gelatinized cassava starch [101]. SEM micrographs of untreated and treated fibers are shown in Figures 3 and 4; FESEM micrographs of treated luffa/epoxy are illustrated in Figure 5.…”

Section: Microscopymentioning

confidence: 99%

“…Generally, an X-ray diffraction test (XRD) helps in evaluating the crystallographic nature of natural fiber composites like LNFC, as well as determining the impact of chemical treatments on the crystalline nature. Recent research implemented XRD to study LNFCs with an epoxy matrix [51], polyester matrix [65,66,96], resorcinol-formaldehyde [57,78], geopolymer [100], polylactic acid [58], and pure luffa fibers [27,55,67,69].…”

Section: X-ray Diffractionmentioning

confidence: 99%

See 3 more Smart Citations

Recent Developments in Luffa Natural Fiber Composites: Review

et al. 2020

View full text Add to dashboard Cite

Natural fiber composites (NFCs) are an evolving area in polymer sciences. Fibers extracted from natural sources hold a wide set of advantages such as negligible cost, significant mechanical characteristics, low density, high strength-to-weight ratio, environmental friendliness, recyclability, etc. Luffa cylindrica, also termed luffa gourd or luffa sponge, is a natural fiber that has a solid potential to replace synthetic fibers in composite materials in diverse applications like vibration isolation, sound absorption, packaging, etc. Recently, many researches have involved luffa fibers as a reinforcement in the development of NFC, aiming to investigate their performance in selected matrices as well as the behavior of the end NFC. This paper presents a review on recent developments in luffa natural fiber composites. Physical, morphological, mechanical, thermal, electrical, and acoustic properties of luffa NFCs are investigated, categorized, and compared, taking into consideration selected matrices as well as the size, volume fraction, and treatments of fibers. Although luffa natural fiber composites have revealed promising properties, the addition of these natural fibers increases water absorption. Moreover, chemical treatments with different agents such as sodium hydroxide (NaOH) and benzoyl can remarkably enhance the surface area of luffa fibers, remove undesirable impurities, and reduce water uptake, thereby improving their overall characteristics. Hybridization of luffa NFC with other natural or synthetic fibers, e.g., glass, carbon, ceramic, flax, jute, etc., can enhance the properties of the end composite material. However, luffa fibers have exhibited a profuse compatibility with epoxy matrix.

show abstract

Section: Treatment Referencementioning

confidence: 99%

Section: Treatment Referencementioning

confidence: 99%

Section: Microscopymentioning

confidence: 99%

Section: X-ray Diffractionmentioning

confidence: 99%

See 2 more Smart Citations

Recent Developments in Luffa Natural Fiber Composites: Review

et al. 2020

View full text Add to dashboard Cite

show abstract

“…The structural and morphological changes can be observed with the treatment of the fibers, and this is mainly due to the removal of non-cellulosic substances from the natural fibers. The significant improvements of the properties of the composites are reported after different chemical treatments along with the increase in the thermal stability of the composites reinforced with natural fibers (Singh et al, 1996;Xie et al, 2010;Xu et al, 2013;Chen et al, 2018).…”

Section: Effect Of Treatments On Natural Fibersmentioning

confidence: 99%

Natural Fibers as Sustainable and Renewable Resource for Development of Eco-Friendly Composites: A Comprehensive Review

2019

View full text Add to dashboard Cite

The increase in awareness of the damage caused by synthetic materials on the environment has led to the development of eco-friendly materials. The researchers have shown a lot of interest in developing such materials which can replace the synthetic materials. As a result, there is an increase in demand for commercial use of the natural fiber-based composites in recent years for various industrial sectors. Natural fibers are sustainable materials which are easily available in nature and have advantages like low-cost, lightweight, renewability, biodegradability, and high specific properties. The sustainability of the natural fiber-based composite materials has led to upsurge its applications in various manufacturing sectors. In this paper, we have reviewed the different sources of natural fibers, their properties, modification of natural fibers, the effect of treatments on natural fibers, etc. We also summarize the major applications of natural fibers and their effective use as reinforcement for polymer composite materials.

show abstract

Modification of Fibers and Matrices in Natural Fiber Reinforced Polymer Composites: A Comprehensive Review

ArunRamnath

Kushvaha

et al. 2022

Macromol. Rapid Commun.

View full text Add to dashboard Cite

Application of natural fiber-polymer composites (NFPCs) in different industrial applications provides competitive edge due to their lightweight, higher specific mechanical properties than glass fibers, sustainability, and lower cost involved in production. There are certain challenges associated with natural fibers and their reinforcement in composites such as poor bonding between the fibers and matrix due to their contradictory nature of characteristics, moisture absorption, lower thermal properties, and poor interfacial adhesion between the natural fiber and polymer matrix. The challenges involved in NFPCs need to be overcome to produce materials with relatively equivalent properties to those of conventional composites and other metallic structures. Several researchers around the globe have conducted investigations with the primary attention being paid to the modification of natural fibers and matrix by employing surface treatments and other chemical treatment methods. In order to address the need for eco-friendly and sustainable materials in different domains, a comprehensive review on natural fibers and their sources, available matrix materials, modification techniques, mechanical and thermal properties of NFPCs, is needed for better understanding of the behavior of NFPCs. This work provides the information and holistic view of natural fiber-reinforced composites based on the results obtained from modification techniques, with the view of focusing the review in terms of different chemical and physical treatment techniques, modification of fibers and matrix, and enhanced mechanical and thermal properties in the composites.

show abstract

Effect of fiber surface treatment on structure, moisture absorption and mechanical properties of luffa sponge fiber bundles

Cited by 98 publications

References 42 publications

Recent Developments in Luffa Natural Fiber Composites: Review

Recent Developments in Luffa Natural Fiber Composites: Review

Natural Fibers as Sustainable and Renewable Resource for Development of Eco-Friendly Composites: A Comprehensive Review

Modification of Fibers and Matrices in Natural Fiber Reinforced Polymer Composites: A Comprehensive Review

Contact Info

Product

Resources

About