Mechanical properties of kenaf fibers and kenaf/PLA composites

被引：484

作者：

Ochi, Shinji ^{[1
]}

机构：

[1] Miyagi Natl Coll Technol, Dept Mech Engn, Natori, Miyagi 9811239, Japan

来源：

MECHANICS OF MATERIALS | 2008年 / 40卷 / 4-5期

关键词：

biodegradable composites; natural fiber; kenaf; PLA; strength; biodegradability;

D O I：

10.1016/j.mechmat.2007.10.006

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This paper describes the cultivation of kenaf and application to biodegradable composite materials. The unidirectional biodegradable composite materials were made from kenaf fibers and an emulsion-type PLA resin. Thermal analysis of kenaf fibers revealed that tensile strength of kenaf fibers decreased when kept at 180 degrees C for 60 min. Therefore, biodegradable composites were fabricated at a molding temperature of 160 degrees C. The unidirectional fiber-reinforced composites showed tensile and flexural strengths of 223 MPa and 254 MPa, respectively. Moreover, tensile and flexural strength and elastic moduli of the kenaf fiber-reinforced composites increased linearly up to a fiber content of 50%. The biodegradability of kenaf/PLA composites was examined for four weeks using a garbage-processing machine. Experimental results showed that the weight of composites decreased 38% after four weeks of composting. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：446 / 452

页数：7

共 12 条

[1] Thermal degradation of cellulose derivatives/starch blends and sisal fibre biocomposites [J].

Alvarez, VA ;

Vázquez, A .

POLYMER DEGRADATION AND STABILITY, 2004, 84 (01) :13-21

[2]

Hull D., 1996, An introduction to composite materials

[3] Myiasis by Chrysomya bezziana in surgical pathology [J].

Lee, MKP ;

Wong, JHC ;

Leung, CY ;

Lee, CKL ;

Lai, RWM ;

Lam, ETK ;

Yeung, JCC ;

Suen, DTK ;

Tse, GMK .

PATHOLOGY, 2005, 37 (01) :80-82

[4] Novel silk/poly(butylene succinate) biocomposites: the effect of short fibre content on their mechanical and thermal properties [J].

Lee, SM ;

Cho, D ;

Park, WH ;

Lee, SG ;

Han, SO ;

Drzal, LT .

COMPOSITES SCIENCE AND TECHNOLOGY, 2005, 65 (3-4) :647-657

[5] 'Green' composites from soy based plastic and pineapple leaf fiber: fabrication and properties evaluation [J].

Liu, WJ ;

Misra, M ;

Askeland, P ;

Drzal, LT ;

Mohanty, AK .

POLYMER, 2005, 46 (08) :2710-2721

[6] Characterization of stearic acid modified soy protein isolate resin and ramie fiber reinforced 'green' composites [J].

Lodha, P ;

Netravali, AN .

COMPOSITES SCIENCE AND TECHNOLOGY, 2005, 65 (7-8) :1211-1225

[7] Interfacial and mechanical properties of environment-friendly "green" composites made from pineapple fibers and poly(hydroxybutyrate-co-valerate) resin [J].

Luo, S ;

Netravali, AN .

JOURNAL OF MATERIALS SCIENCE, 1999, 34 (15) :3709-3719

[8] Kenaf reinforced biodegradable composite [J].

Nishino, T ;

Hirao, K ;

Kotera, M ;

Nakamae, K ;

Inagaki, H .

COMPOSITES SCIENCE AND TECHNOLOGY, 2003, 63 (09) :1281-1286

[9] Natural fibres as reinforcement in polylactic acid (PLA) composites [J].

Oksman, K ;

Skrifvars, M ;

Selin, JF .

COMPOSITES SCIENCE AND TECHNOLOGY, 2003, 63 (09) :1317-1324

[10] Biodegradable composites based on L-polylactide and jute fibres [J].

Plackett, D ;

Andersen, TL ;

Pedersen, WB ;

Nielsen, L .

COMPOSITES SCIENCE AND TECHNOLOGY, 2003, 63 (09) :1287-1296

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