Melt-spun polylactic acid fibers: Effect of cellulose nanowhiskers on processing and properties

被引：59
作者：
John, Maya Jacob [3 ,4 ]
Anandjiwala, Rajesh [3 ,4 ]
Oksman, Kristiina [1 ,2 ]
Mathew, Aji P. [1 ,2 ]
机构：
[1] Lulea Univ Technol, Div Mat Sci, S-97187 Lulea, Sweden
[2] Lulea Univ Technol, Composite Ctr Sweden, S-97187 Lulea, Sweden
[3] CSIR, Port Elizabeth, South Africa
[4] Nelson Mandela Metropolitan Univ, Dept Text Sci, ZA-6000 Port Elizabeth, South Africa
来源：
JOURNAL OF APPLIED POLYMER SCIENCE | 2013年 / 127卷 / 01期
基金：
新加坡国家研究基金会;
关键词：
melt spinning; polylactic acid; cellulose nanowhiskers; mechanical properties; thermal properties; shrinkage; POLY(LACTIC ACID); NANOCOMPOSITES; WHISKERS; TEXTILE;
D O I：
10.1002/app.37884
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Bio-based continuous fibers were processed from polylactic acid (PLA) and cellulose nanowhiskers (CNWs) by melt spinning. Melt compounding of master batches of PLA with 10 wt % CNWs and pure PLA was carried out using a twin-screw extruder in which compounded pellets containing 1 and 3 wt % of CNWs were generated for subsequent melt spinning. The microscopy studies showed that the fiber diameters were in the range of 90-95 mu m, and an increased surface roughness and aggregations in the fibers containing CNWs could be detected. The addition of the CNWs restricted the drawability of the fibers to a factor of 2 and did not affect the fiber stiffness or strength, but resulted in a significantly lower strain and slightly increased crystallinity. Furthermore, CNWs increased the thermal stability, creep resistance and reduction in thermal shrinkage of PLA fibers, possibly indicating a restriction of the polymer chain mobility due to the nanoscale additives. (C) 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2012
引用
收藏
页码：274 / 281
页数：8
相关论文
共 31 条
[1]   Poly(oxyethylene) and ramie whiskers based nanocomposites: influence of processing: extrusion and casting/evaporation [J].
Alloin, Fannie ;
D'Aprea, Alessandra ;
Dufresne, Alain ;
El Kissi, Nadia ;
Bossard, Frederic .
CELLULOSE, 2011, 18 (04) :957-973
[2]   PET-SWNT Nanocomposite Fibers through Melt Spinning [J].
Anand, K. Anoop ;
Jose, T. Sunil ;
Agarwal, U. S. ;
Sreekumar, T. V. ;
Banwari, Bhawna ;
Joseph, Rani .
INTERNATIONAL JOURNAL OF POLYMERIC MATERIALS, 2010, 59 (06) :438-449
[3]   Optimization of the isolation of nanocrystals from microcrystalline cellulose by acid hydrolysis [J].
Bondeson, D ;
Mathew, A ;
Oksman, K .
CELLULOSE, 2006, 13 (02) :171-180
[4]   Flammability of polyamide-6 /clay hybrid nanocomposite textiles [J].
Bourbigot, S ;
Devaux, E ;
Flambard, X .
POLYMER DEGRADATION AND STABILITY, 2002, 75 (02) :397-402
[5]  
Burkinshaw S. M., 1995, Chemical Principles of Synthetic Fibre Dyeing, P1
[6]   Coloration of poly(lactic acid) with disperse dyes. II. Dyeing characteristics and color fastness [J].
Choi, Jae-hong ;
Kim, Mi-hyeon ;
Park, Joon-soo ;
Jeon, Jeong-min ;
Kim, Dae-ok ;
Towns, A. D. .
FIBERS AND POLYMERS, 2007, 8 (01) :37-42
[7]  
Fourne F., 1998, Synthetic Fibers: machines and Equipment, Manufacture, Properties
[8]   Characterization of cellulose whiskers and their nanocomposites by atomic force and electron microscopy [J].
Kvien, I ;
Tanem, BS ;
Oksman, K .
BIOMACROMOLECULES, 2005, 6 (06) :3160-3165
[9]  
Lee S., 1992, HDB COMPOSITE REINFO
[10]   Properties of polypropylene/layered-silicate nanocomposites and melt-spun fibers [J].
Lee, Seung Hwan ;
Youn, Jae Ryoun .
JOURNAL OF APPLIED POLYMER SCIENCE, 2008, 109 (02) :1221-1231
1234