Comparative studies of oxidative stability of linseed oil

被引：93

作者：

Rudnik, E ^{[1
]}

Szczucinska, A ^{[1
]}

Gwardiak, H ^{[1
]}

Szulc, A ^{[1
]}

Winiarska, A ^{[1
]}

机构：

[1] Ind Chem Res Inst, PL-01793 Warsaw, Poland

来源：

THERMOCHIMICA ACTA | 2001年 / 370卷 / 1-2期

关键词：

linseed oil; thermal analysis; oxidative stability;

D O I：

10.1016/S0040-6031(00)00781-4

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The oxidative stability of linseed oil was studied using classical method based on determination of peroxide value (PV), the Rancimat method based on conductometric measurements and thermoanalytical methods, i.e. the differential scanning calorimetry (DSC) and thermogravimetry (TG) in oxygen atmosphere. The onset temperatures T-onset,T-DSC and T-onset,T-TG were determined from dynamical DSC and TG curves, respectively. From isothermal DSC curves times t(onset) were determined. The effect of two antioxidants was also studied. An antioxidant blend containing alpha -tocopherol, ascorbyl palmitate, citric acid, ascorbic acid, and ethoxylated ethylene glycol proved more effective than butylated hydroxy anisole for protection of linseed oil against process, in good agreement with results obtained by the classical titration and the Rancimat methods. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：135 / 140

页数：6

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