Effect of hydroxides and hydroxycarbonate structure on fire retardant effectiveness and mechanical properties in ethylene-vinyl acetate copolymer

被引：389

作者：

Camino, G

Maffezzoli, A

Braglia, M

De Lazzaro, M

Zammarano, M

机构：

[1] Ctr Studi & Lab Telecomun SpA, I-10148 Turin, Italy

[2] Univ Turin, Dipartimento Chim IFM, I-10125 Turin, Italy

[3] Univ Lecce, Dipartimento Ingn Innovaz, I-73100 Lecce, Italy

来源：

POLYMER DEGRADATION AND STABILITY | 2001年 / 74卷 / 03期

关键词：

flame retardants; ethylene-vinyl acetate copolymer; inorganic hydroxides; hydrotalcite;

D O I：

10.1016/S0141-3910(01)00167-7

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 [高分子化学与物理]; 080501 [材料物理与化学]; 081704 [应用化学];

摘要：

The flame retardant effect of inorganic hydroxides, like aluminum hydroxide and magnesium hydroxide in ethylene vinyl acetate copolymer, was evaluated and compared with that of other inorganic fillers such as boehmite and hydrotalcite. The thermal decomposition of the fillers and the mixtures with EVA polymer were analysed by differential scanning calorimetry (DSC), Thermogravimetry (TG) and X-ray diffraction (XRD). The most significant flame retardant effects, observed using a mass loss calorimeter, indicated that the EVA polymer filled with 50 wt.% of hydrotalcite has the slowest heat release rate and the lowest evolved gas temperature. XRD data, combined with thermal analysis results, indicated that the layered structure of hydrotalcite may play a role in the degradation mechanism. The improved fire resistance of EVA filled with hydrotalcite also results from its intumescent behaviour. (C) 2001 Elsevier Science Ltd. All rights reserved.

引用

页码：457 / 464

页数：8

共 14 条

[1]

Hydrotalcite decomposition mechanism: A clue to the structure and reactivity of spinel-like mixed oxides [J].

Bellotto, M ;

Rebours, B ;

Clause, O ;

Lynch, J ;

Bazin, D ;

Elkaim, E .

JOURNAL OF PHYSICAL CHEMISTRY, 1996, 100 (20) :8535-8542

[2]

Camino G, 2000, FIRE MATER, V24, P85, DOI 10.1002/1099-1018(200003/04)24:2<85::AID-FAM724>3.0.CO

[3]

2-T

[4]

*CEI 20224, 1997, METH MEAS OX IND NON

[5]

*CEI IEC 81111, 1993, COMM TEST METH INS S

[6]

COMBUSTION OF ETHYLENE VINYL-ACETATE COPOLYMER FILLED WITH ALUMINUM AND MAGNESIUM HYDROXIDES [J].

DELFOSSE, L ;

BAILLET, C ;

BRAULT, A ;

BRAULT, D .

POLYMER DEGRADATION AND STABILITY, 1989, 23 (04) :337-347

[7]

*ISO FDIS 13927, 1999, PLAST SIMPL HEAT REL

[8]

MUSSELMAN LL, 1993, Patent No. 5225115

[9]

Rothon RN, 1999, ADV POLYM SCI, V139, P67

[10]

USE OF THERMAL METHODS IN THE CHARACTERIZATION OF THE HIGH-TEMPERATURE DECOMPOSITION AND IGNITION OF POLYOLEFINS AND EVA COPOLYMERS FILLED WITH MG(OH)2,AL(OH)3 AND CACO3 [J].

RYCHLY, J ;

VESELY, K ;

GAL, E ;

KUMMER, M ;

JANCAR, J ;

RYCHLA, L .

POLYMER DEGRADATION AND STABILITY, 1990, 30 (01) :57-72

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