Preparation and characterization of melt processed poly(L-lactide)/layered double hydroxide nonocomposites

被引：22

作者：

Chiang, Ming-Feng ^{[1
]}

Wu, Tzong-Ming ^{[1
]}

机构：

[1] Natl Chung Hsing Univ, Dept Mat Sci & Engn, Taichung 402, Taiwan

来源：

COMPOSITES PART B-ENGINEERING | 2012年 / 43卷 / 07期

关键词：

Polymer-matrix composites (PMCs); Microstructures; Mechanical properties; Electron microscopy; Layered double hydroxide; LAYERED DOUBLE HYDROXIDES; MONTMORILLONITE NANOCOMPOSITES; BIODEGRADABLE POLY(L-LACTIDE); SILICATE NANOCOMPOSITES; MECHANICAL-PROPERTIES; LACTIC-ACID; BEHAVIOR; CRYSTALLIZATION; COMPOSITES; CLAY;

D O I：

10.1016/j.compositesb.2012.04.040

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This work reports the fabrication and physical properties of biodegradable poly(L-lactide)(PLLA) composites containing a fraction of unmodified layered double hydroxides (LDH-NO3) and gamma-polyglutamate-modified layered double hydroxides (gamma-LDH) by melt blending process. The X-ray diffraction (XRD) and transmission electron microscopy (TEM) experimental results showed that the original LDH-NO3 with the certain amount of aggregates was unevenly dispersed throughout the PLLA matrix. Conversely, gamma-LDH allows the formation of an intercalated nanocomposite. Although the water vapor permeability of the PLLA/LDH systems was decreased with increasing the loading of LDH, the barrier property of PLLA reinforced with gamma-LDH is superior to that of PLLA-L composites. The effects of both LDHs on mechanical and thermal properties of PLLA were also investigated. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：2789 / 2794

页数：6

共 45 条

[41] Synthesis and characterization of polyoxyethylene sulfate intercalated Mg-Al-nitrate layered double hydroxide [J].

Yang, QZ ;

Sun, DJ ;

Zhang, CG ;

Wang, XJ ;

Zhao, WA .

LANGMUIR, 2003, 19 (14) :5570-5574

[42] Biodegradable poly(L-lactide)/poly(ε-caprolactone)-modified montmorillonite nanocomposites:: Preparation and characterization [J].

Yu, Zhenyang ;

Yin, Jingbo ;

Yan, Shifeng ;

Xie, Yongtao ;

Ma, Jia ;

Chen, Xuesi .

POLYMER, 2007, 48 (21) :6439-6447

[43] Poly(L-lactide) (PLLA)/multiwalled carbon nanotube (MWCNT) composite: Characterization and biocompatibility evaluation [J].

Zhang, Donghui ;

Kandadai, Madhuvanthi A. ;

Cech, Jiri ;

Roth, Siegmar ;

Curran, Seamus A. .

JOURNAL OF PHYSICAL CHEMISTRY B, 2006, 110 (26) :12910-12915

[44] Crystal modifications and thermal behavior of poly(L-lactic acid) revealed by infrared spectroscopy [J].

Zhang, JM ;

Duan, YX ;

Sato, H ;

Tsuji, H ;

Noda, I ;

Yan, S ;

Ozaki, Y .

MACROMOLECULES, 2005, 38 (19) :8012-8021

[45] Effect of Functionalization of Multiwalled Nanotubes on the Crystallization and Hydrolytic Degradation of Biodegradable Poly(L-lactide) [J].

Zhao, Yuanyuan ;

Qiu, Zhaobin ;

Yang, Wantai .

JOURNAL OF PHYSICAL CHEMISTRY B, 2008, 112 (51) :16461-16468

← 1 2 3 4 5 →