Stabilizing effect of epoxidized sunflower oil on the thermal degradation of poly(vinyl chloride)

被引：101

作者：

Benaniba, MT

Belhaneche-Bensemra, N

Gelbard, G

机构：

[1] Ecole Natl Polytech, Dept Gen Environm, Algiers, Algeria

[2] Univ Setif, Inst Chim Ind, Dept Gen Polymeres, Setif 19000, Algeria

[3] Inst Rech Catalyse, CNRS, F-69626 Villeurbanne, France

来源：

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

关键词：

poly(vinyl chloride); metal carboxylates; epoxidized sunflower oil; thermal stabilization; thermo-oxidative degradation;

D O I：

10.1016/S0141-3910(01)00170-7

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：

Unsaturated triglyceride oil (sunflower) was obtained from commercial sources. It was epoxidized and characterized by chemical and spectroscopic methods. The thermo-oxidative degradation of poly(vinyl chloride) at 180 degreesC was investigated. The effects of different metal carboxylate combinations (Ba/Cd and Ca/Zn stearates) in the presence of epoxidized sunflower oil on static heat treatment of PVC have been studied. In order to compare the efficiency of the epoxidized sunflower oil with these metal soap stabilizers, thermal stabilities were evaluated on the basis of evolved hydrogen chloride determined by potentiometric titration and the degree of discoloration are discussed. The development of color and the dehydrochlorination rates were compared for PVC sheets containing epoxidized sunflower oil (ESO) or epoxidized soya bean oil (ESBO). It was found that ESO exerted a stabilizing effect on the degradation of PVC. Further-more, the thermal degradation of PVC with metal soaps and ESO was investigated by thermogravimetric analysis (TG) and differential thermogravimetric analysis (DTG). (C) 2001 Elsevier Science Ltd. All rights reserved.

引用

页码：501 / 505

页数：5

共 33 条

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