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Surface Treatment of Natural Fibers (Chemical Treatment)
Published in Shishir Sinha, G. L. Devnani, Natural Fiber Composites, 2022
Composites are made of two materials i.e., natural and synthetic (Biagiotti et al., 2004). In the present time, synthetic material is generally used, but due to certain disadvantages, mainly environmental issues (non-biodegradable) are important and that we have to move on to natural material from synthetic ones . The demand of natural fiber is increasing day by day. Composites made by natural fibers also have huge advantages nowadays. Natural fibers also have different advantages in our daily life. These are biodegradable, low in cost, and low in density. Natural fibers made of cellulose or plant matter can be obtained from almost every part of the plant such as the root, stem or shoot, leaf, fruit, and bark from many tree species (Siakeng et al., 2019). There are various types of natural fibers like leaf fiber, reed fiber, bast fiber, grass fiber, etc. Leaf fiber (hemp, sisal, phormium etc.) is mainly obtained from sword-shaped leaves that are thick, fleshy, and hard (Madhu et al., 2019). Fibers are obtained from plant fibers like hemp, pineapple, sisal, jute, coir, banana, reed, organic cotton, nettle, grass, etc. Animal fibers like wool, mohair, cashmere, angora, yak wool, alpaca wool, camel hair, etc. and insect fibers like silk (Djafari Petroudy, 2017). Bast fibers are defined as those that are obtained from outer shell layers of stems of plants like ramie, jute, and flax, etc. This fiber is also called a skin fiber. They are used in making yarn and weaving cloth. Seed fibers are collected from seeds or seed cases, for example, cotton and kapok, etc. Reed fibers are obtained from reed plants that can be used to create papyrus sheets. Napier grass fiber is one kind of grass fiber (Yashas Gowda et al., 2018).
Physical characteristics of Typha elephantina Roxb. fiber (Hogla) for textile application
Published in The Journal of The Textile Institute, 2022
Upama Nasrin Haq, Abu Huraira, Mohammad Abbas Uddin
Various study was carried out on Typha or similar plants such as in Pakistan in 1970 (Khan et al., 1970), Tunisian Typha leaf fibers in 2014 (Sana et al., 2014), and Typha australis (Leafiran) in Iran in 2009 (Mortazavi & Moghadam, 2009; Sana et al., 2015). In 2020, a survey was carried out for potential fiber yielding plants in Lakhimput and Dehmaji districts of Assam in India and recorded 130 species of plants, in which one or more parts can be used or treated as fiber (Das et al., 2020). Typha elephantine was one of them, in which the Typha ‘leaves’ were considered the potential source of fiber. By nature, Typha leaf fiber is very similar to jute fiber, and there is a possibility that this could be used in a similar application for jute. With this in mind, the main objective of this study is to characterize the major properties of Typha elephantina Roxb. (Hogla) to explore another source of natural fiber for textile application.
Physico-mechanical properties enhancement of pineapple leaf fiber (PALF) reinforced epoxy resin-based composites using guar gum (polysaccharide) filler: effects of gamma radiation
Published in Radiation Effects and Defects in Solids, 2022
Mohammad Bellal Hoque, Md. Abdul Hannan, M.Z.I. Mollah, M.R.I. Faruque, Ruhul A. Khan
Selecting raw material from wastage is more preferable for researchers. Pineapple leaf fiber (PALF) is deemed as one of the agricultural waste. PALF can be characterized as white color, sleek, shiny like silk, available and moderate in length and better mechanical properties (16,17). Besides, it has high cellulose constitution (70–82%) which makes it more striking as a reinforcing element of composite materials. The other chemical constituents of PALF are 5–12% lignin and 1.1% ash. The low content of lignin adds another value for choosing PALF in composite manufacturing (16). Pineapple fiber-reinforced composite materials have been used world wide in automobile industry, spacecraft sector, different interior design purpose, furniture and many more. The primary complication of PALF is hydrophilicity which makes it a water lover. But this complication can be dispelled by surface modification treatment with the aid of various chemicals. Apart from the primary complication, PALF has a great potentiality in fiber-reinforced polymer-based composite field (18–21).
Optimization and compressive behavior of composite 2-D lattice structure
Published in Mechanics of Advanced Materials and Structures, 2020
Shuai Li, Jiankun Qin, Chenchuang Li, Yanxia Feng, Xin Zhao, Yingcheng Hu
Biomass-based lattice structures have been explored as a kind of lightweight engineering material because of their vast source, excellent stiffness, and strength-to-weight ratios. Jin et al. [22] studied the mechanical performance of straight and inclined lattice structures of panel and core based on biomass material. Results showed that the flat compression performance of the straight columnar lattice structure based on wood was excellent, which can be used in places where the larger compression load is required. The inclined lattice sandwich structure had good shear performance and can be used in the place where it can bear both axial load and transverse shear force. Hao et al. [23] prepared a pineapple leaf fiber-reinforcing lattice cylindrical structure, taking pineapple leaf fiber as the reinforcing material and phenolic resin as the matrix material. The analysis and study on its flat compression performance were carried out. Results showed that theoretical analysis can analyze and predict flat compression performance of structure to a certain extent. Pineapple leaf fiber-reinforcing lattice cylindrical structure had higher specific load and better mechanical performance.