Thermal oxidation of vinyl ester and unsaturated polyester resins

被引：46

作者：

Arrieta, Juan Sebastian ^{[1
,2
]}

Richaud, Emmanuel ^{[1
]}

Fayolle, Bruno ^{[1
]}

Nizeyimana, Fidele ^{[2
]}

机构：

[1] Arts & Metiers ParisTech, PIMM, CNRS, 151 Bvd Hop, F-75013 Paris, France

[2] AREVA TN, 1 Rue Herons, F-78180 Montigny Le Bretonneux, France

来源：

POLYMER DEGRADATION AND STABILITY | 2016年 / 129卷

关键词：

Vinyl ester; Unsaturated polyester; Thermal oxidation; Gravimetry; InfraRed spectroscopy; Diffusion limited oxidation; TRANSPORT-PROPERTIES; GAS-TRANSPORT; EPOXY-RESINS; PHOTOOXIDATION; DEGRADATION; PHOTOLYSIS; KINETICS; POLYPROPYLENE; NETWORKS; PRODUCTS;

D O I：

10.1016/j.polymdegradstab.2016.04.003

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 thermal oxidative ageing of vinyl ester and unsaturated polyester was studied at temperatures ranging from 120 to 160 degrees C and oxygen pressures ranging from 0.02 to 2.0 MPa. The oxidation of both materials was shown to generate anhydrides detected by FTIR spectroscopy, the origin of which being the oxidation of CH2 group in alpha position of ester, and significant mass loss. According to FTIR study, vinyl ester was shown to be more oxidizable than unsaturated polyesters but this feature is counterbalanced by a lower volatile yield. The thickness of oxidized layer in diffusion limited oxidation regime was hence observed to be higher in Unsaturated Polyester (ca 600 mu m) than in Vinyl Ester (ca 200 mu m) at 160 degrees C and seems not affected by the presence of high content of fillers. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：142 / 155

页数：14

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