Discolouration in fire retardant flexible polyurethane foams. Part I. Characterisation

被引：8
|
作者：
Luda, MP
Bracco, P
Costa, L
Levchik, SV
机构：
[1] Univ Turin, IFM, Dipartimento Chim, I-10125 Turin, Italy
[2] Akzo Nobel Chem, Dobbs Ferry, NY 10522 USA
来源：
POLYMER DEGRADATION AND STABILITY | 2004年 / 83卷 / 02期
关键词：
polyurethane foams; scorch; discoloration; UV spectra; water blown foams;
D O I：
10.1016/S0141-3910(03)00263-5
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Scorching of water-blown polyurethane foams is a general phenomenon usually attributed to the thermal degradation and oxidation of the foam. Scorch is more visible in the presence of some phosphorus- or halogen-containing fire retardants. In the present study four phosphorus-containing fire retardant foams and one non-fire-retardant foam have been tested for scorching. The results showed that some fire retardants are able to accelerate the scorching process by forming new easily oxidisable structures via interaction with polyurethane degradation products. (C) 2003 Elsevier Ltd. All rights reserved.
引用
收藏
页码：215 / 220
页数：6
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