Fiber composites lignocellulose

Ashori et al. [58] used recycled PP and HDPE as matrices for lignocellulosic fiber composite using MAPP as coupling agent. This composite has been used for board preparation. Ardanuy et al. [59] prepared recycled polypropylene-based green foams reinforced with untreated and chemically treated cellulose fibers obtained from agricultural residue. Their results showed that these foams may find potential... 

Finally, a possible method for estimation of IFSS in lignocellulosic fiber composites could be based on the evaluation of the critical length 4 at the condition of maximized mechanical properties [55,56]. According to Nair et al. [56], as the fiber length increases, there is a chance for better orientation that may lead to an improvement in mechanical properties of the composites. Based on this assumption, critical lengths of 6 mm for sisal fibers in polyethylene [55] and 10 mm for sisal fibers in polystyrene composites were reported [56]. Even though the authors have not attempted to calculate the IFSS, these reported critical length values are comparable to those obtained for sisal fibers in polyester matrix [51, 57]. As earlier mentioned in this chapter, with the value of the IFSS could then be calculated by means of Equation (9.6). 

Different kinds of biobased polymeric materials are available all around the globe. These biobased materials are procured from different biorenewable resources. Chapters 2-10 primarily focus on the use of different types of lignocellulosic fiber-reinforced composites, starting from wood fibers to hybrid fiber-reinforced polymer composites. Chapter 3 summarizes some of the recent research on different lignocellulosic fiber-reinforced polymer composites in the Southeast region of the world, while Chapter 6 summarizes the research on some typical Brazilian lignocellulosic fiber composites. The polymers obtained from biopolymers are frequently referred to as biobased... 

Keywords Hybrid composites, lignocelluloses fibers, water absorption, thickness swelling, mechanical properties, acoustic properties, SEM... 

Schuh T and Gayer U (1997), Automotive applications of natural fiber composites , in Leao A L, Carvalho F X and Frollini E, Lignocellulosics-plastics Composites, Sao Paulo, Brazil, USP and UNESP, 181-195. 

K.D. Sears, Lignocellulose fiber composite with soil conditioners, US Patent 6 855182, assigned to Rayonier Products and Financial Services Company (Fernand ina Beach, FL), February 15,2005. 

J. M. Warnes, and A. ernyhough. Plastic-fiber composite products/pellets used as feedstock in e.g. plastic manufacture, are obtained by breaking down lignocellulosic material or natural fiber, applying binder formulation and forming pellets or granules. New Zealand Forest Res Inst Ltd (2011). 

Gomez-Bueso, J., Westin, M., Torgilsson, R., Olesen, P.O. and Simonson, R. (2000). Composites made from acetylated lignocellulosic fibers of different origin. Part I. Properties of dry-formed fiber boards. Holz als Roh- und Werkstoff, 58(1-2), 9-14. 

Rowell, R.M., Cleary, B.A., Rowell, J.S., Clemons, C. and Young, R.A. (1993b). Results of chemical modification of lignocellulosic fibers for use in composites. In Wood Fiber/Polymer Composites Fundamental Concepts, Processes, and Material Options, Wolcott, M.P. (Ed.). Eorest Products Society, Madison, Wiseconsin, USA, pp. 121-127. 

Chemical Modification of Lignocellulosic Fibers To Produce High-Performance Composites... 

Composites made from lignocellulosic materials have been restricted from many markets because of their moisture sorption, dimensional instability, and to a lesser extent, biological degradation. These negative properties can be overcome, allowing flakes, particles, and fiber from wood and agricultural residues to find markets related to high-performance composites. 

For some applications, a combination of materials may be required to achieve a composite with the desired properties and performance. Property-improved lignocellulosic fibers can be combined with materials such as metal, glass, plastic, natural polymers, and synthetic fiber to yield a new generation of composite materials. New composites will be developed that utilize the unique properties obtainable by combining many different materials. This trend will increase significantly in the future. 

Recent work by the USDA and Kcnaf International (Texas) has demonstrated the potential of both growing and processing kcnaf fibers for newsprinl and other paper products in the United States. Another promising potential use for vegetable fibers is in the new lignocellulosic-hased composites under development in various parts of the industrialized world. Such products are already utilized in the automotive industry for automobile interior door and head liners and as trunk liners. 

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