New nanocomposites constituted of polyethylene and organically modified ZnAl-hydrotalcites

被引:111
作者
Costantino, U
Gallipoli, A
Nocchetti, M
Camino, G
Bellucci, F
Frache, A
机构
[1] CO Politecn Torino, Ctr Cultura Ingn Mat Plast, I-15100 Alessandria, Italy
[2] Univ Perugia, Dipartimento Chim, CEMIN, Ctr Eccellenza Mat Innovat Nanostrutt, I-06123 Perugia, Italy
关键词
nanocomposites; layered double hydroxides; organically modified hydrotalcites; flame retardancy; cone calorimetry; thermal degradation;
D O I
10.1016/j.polymdegradstab.2005.05.019
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
The thermal properties and combustion behaviour of new PE-hydrotalcites nanocomposites are described. Hydrotalcites were synthesized and then intercalated with stearate anion, because of the compatibility of long alkyl chain with polyethylene chains. The presence of inorganic filler shields PE from thermal oxidation, shifting the temperature range of volatilisation towards that of thermal degradation in nitrogen, and brings to a reduction of 55% in heat release rate during combustion. (c) 2005 Elsevier Ltd. All rights reserved.
引用
收藏
页码:586 / 590
页数:5
相关论文
共 11 条
[1]   Polymer-layered silicate nanocomposites: Preparation, properties and uses of a new class of materials [J].
Alexandre, Michael ;
Dubois, Philippe .
Materials Science and Engineering: R: Reports, 2000, 28 (1-2) :1-63
[2]   Effect of hydroxides and hydroxycarbonate structure on fire retardant effectiveness and mechanical properties in ethylene-vinyl acetate copolymer [J].
Camino, G ;
Maffezzoli, A ;
Braglia, M ;
De Lazzaro, M ;
Zammarano, M .
POLYMER DEGRADATION AND STABILITY, 2001, 74 (03) :457-464
[3]   Preparation of nanocomposites by exfoliation of ZnAl layered double hydroxides in nonpolar LLDPE solution [J].
Chen, W ;
Feng, L ;
Qu, BJ .
CHEMISTRY OF MATERIALS, 2004, 16 (03) :368-370
[4]  
Costantino U, 1998, EUR J INORG CHEM, P1439
[5]   The self-assembling properties of stearate ions in hydrotalcite clay composites [J].
Itoh, T ;
Ohta, N ;
Shichi, T ;
Yui, T ;
Takagi, K .
LANGMUIR, 2003, 19 (22) :9120-9126
[6]   Structure and conductive properties of poly(ethylene oxide)/layered double hydroxide nanocomposite polymer electrolytes [J].
Liao, CS ;
Ye, WB .
ELECTROCHIMICA ACTA, 2004, 49 (27) :4993-4998
[7]  
Rives V., 2001, Layered Double Hydroxides: Present and Future
[8]  
TRIFIRO F, 1996, COMPREHENSIVE SUPRAM, V7
[9]  
Zanetti M, 2000, MACROMOL MATER ENG, V279, P1, DOI 10.1002/1439-2054(20000601)279:1<1::AID-MAME1>3.0.CO
[10]  
2-Q