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.
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页码：313 / 324
页数：12
相关论文
共 36 条
[31]   ACCELERATED DEGRADATION STUDIES OF STARCH-FILLED POLYETHYLENE FILMS [J].
SUNG, W ;
NIKOLOV, ZL .
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 1992, 31 (10) :2332-2339
[32]  
Tomka I, 1993, European Patent Appl., Patent No. [542 155 A2, 542155]
[33]  
UDIPI K, 1993, J POLYM SCI PS, V75, P109
[34]  
WEISSNER J, 1993, Patent No. 537657
[35]  
WIESENER E, 1968, FASERFORSCH TEXTILTE, V19, P235
[36]  
ZIMMERMANN H, 1968, FASERFORCH TEXTILTEC, V19, P372
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