Thermoanalytical study of the effect of EAA and starch on the thermo-oxidative degradation of LDPE

被引：33

作者：

Bikiaris, D ^{[1
]}

Prinos, J ^{[1
]}

Perrier, C ^{[1
]}

Panayiotou, C ^{[1
]}

机构：

[1] Univ Thessaloniki, Dept Chem Engn, GR-54006 Salonika, Greece

来源：

POLYMER DEGRADATION AND STABILITY | 1997年 / 57卷 / 03期

关键词：

THERMOOXIDATIVE STABILITY; POLY(ETHYLENE-TEREPHTHALATE); FILMS;

D O I：

10.1016/S0141-3910(97)00026-8

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 effect of ethylene-acrylic acid copolymer (EAA) and plasticized starch (PLST) upon the thermo-oxidative degradation of low density polyethylene (LDPE) was examined. The course of oxidation was followed using thermogravimetric analysis (TGA) to monitor the weight changes during heating and Differential Scanning Calorimetry (DSC) to study the heat changes taking place during oxidation. Three types of blends were examined: LDPE-plasticized starch (PLST), LDPE-EAA and LDPE-starch-EAA blends. All blends contained cobalt stearate as prooxidant (PRO). Measurements verify previous findings that EAA accelerates LDPE thermo-oxidation whereas PLST inhibits it. Using the TGA method, the best results were obtained by isothermal heating of the samples at 190 degrees C whereas with DSC, dynamic measurements using low heating rates were better. (C) 1997 Elsevier Science Limited.

引用

页码：313 / 324

页数：12

共 36 条

[1] DEGRADABLE POLYETHYLENE-STARCH COMPLEX [J].

ALBERTSSON, AC ;

KARLSSON, S .

MAKROMOLEKULARE CHEMIE-MACROMOLECULAR SYMPOSIA, 1991, 48-9 :395-402

[2] SPECTROSCOPIC AND MECHANICAL CHANGES IN IRRADIATED STARCH-FILLED LDPE [J].

ALBERTSSON, AC ;

GRIFFIN, GJL ;

KARLSSON, S ;

NISHIMOTO, K ;

WATANABE, Y .

POLYMER DEGRADATION AND STABILITY, 1994, 45 (02) :173-178

[3]

[Anonymous], 1984, STARCH CHEM TECHNOLO

[4]

AUSTIN RG, 1990, DEGRADABLE MAT PERSP

[5]

Bair H.E., 1981, THERMAL CHARACTERIZA

[6]

BARABAS K, 1976, J POLYM SCI S, V57, P65

[7] MODELING THE THERMAL OXIDATIVE-DEGRADATION KINETICS OF POLYETHYLENE FILM CONTAINING METAL PRO-OXIDANTS [J].

BARRKUMARAKULASINGHE, SA .

POLYMER, 1994, 35 (05) :995-1003

[8] Effect of EAA and starch on the thermooxidative degradation of LDPE [J].

Bikiaris, D ;

Prinos, J ;

Panayiotou, C .

POLYMER DEGRADATION AND STABILITY, 1997, 56 (01) :1-9

[9] BIODEGRADABILITY OF POLYMERS AND FIBERS - A REVIEW OF THE LITERATURE [J].

COOKE, TF .

JOURNAL OF POLYMER ENGINEERING, 1990, 9 (03) :171-211

[10]

COX MK, 1995, PURE APPL CHEM A, V32, P607

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