Influence of grape seed oil into recycled polypropylene (PP) thermo-oxidative degradation

被引：0

作者：

da Costa, Helson Moreira ^{[1
,2
]}

Ramos, Valeria Dutra ^{[2
]}

Andrade Estanislau Cyrino, Jacques Satler ^{[1
]}

机构：

[1] Univ Estado Rio de Janeiro UERJ, Dept Mat DEMAT, Inst Politecn IPRJ, Rua Hormindo Silva 25, BR-28625570 Nova Friburgo, RJ, Brazil

[2] Univ Estacio Sa UNESA, Rua Jose Acurcio Benigno 116, BR-28611135 Nova Friburgo, RJ, Brazil

来源：

MATERIA-RIO DE JANEIRO | 2021年 / 26卷 / 01期

关键词：

Polypropylene; Grape seed oil; Thermal analysis; Thermo-oxidation; Kinetics; THERMAL-DEGRADATION; KINETICS;

D O I：

10.1590/S1517-707620210001.1218

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The antioxidant potential of grape seed oil (OSU) was evaluated after addition into recycled polypropylene (PP rec.). OSU was incorporated into PP rec. in variable contents of 0.5, 1.0 and 1.5 phr (per hundred resin). The processing was carried out in a twin-screw extruder and the different samples, after being granulated, were submitted to thermo-oxidative degradation by thermogravimetry (TGA). Experimental data were treated using an empirical methodology that combined kinetic models, present in the literature, and statistical tools such as analysis of variance (ANOVA). The results of thermo-oxidative degradation kinetics allowed us to conclude that OSU shows effective antioxidant activity only when the added content does not exceed 0.5 phr and low heating rates (3 degrees C/min) are considered.

引用

页数：13

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