Chemiluminescence from polypropylene .3. Application to the study of antioxidant effectiveness

被引：42

作者：

Dudler, V ^{[1
]}

Lacey, DJ ^{[1
]}

Krohnke, C ^{[1
]}

机构：

[1] CIBA GEIGY LTD,ADDIT DIV,CH-4002 BASEL,SWITZERLAND

来源：

POLYMER DEGRADATION AND STABILITY | 1996年 / 51卷 / 02期

关键词：

D O I：

10.1016/0141-3910(95)00193-X

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 chemiluminescence (CL) emission of polypropylene films stabilised with phenolic antioxidants was studied at 150 degrees C under oxygen with a CL-imaging apparatus. Results show that the oxidation induction time measured by CL can be related to the antioxidant concentration in the him and correlates linearly with the embrittlement time observed in the universal oven ageing test. These observations lead to the conclusion that the CL method can be used to screen the stabiliser effectiveness in polypropylene. Advantages and drawbacks of the CL technique versus 'oven ageing' are discussed in detail and a new testing procedure, giving faster results and better discrimination between samples is proposed.

引用

页码：115 / 124

页数：10

共 27 条

[1] OXYLUMINESCENCE FROM POLYPROPYLENE [J].