Thermal stability of cured gelatin-trimethylolphenol blends: effect of plasticizer

被引：7

作者：

Goswami, TH

Maiti, MM ^{[1
]}

机构：

[1] Indian Inst Technol, Dept Chem, Kharagpur 721302, W Bengal, India

[2] Def Res & Dev Estab, Gwalior 474002, India

来源：

POLYMER DEGRADATION AND STABILITY | 1998年 / 62卷 / 03期

关键词：

D O I：

10.1016/S0141-3910(98)00025-1

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Thermal stability and degradation characteristics of both unplasticized and plasticized gelatin-trimethylolphenol (TMP) cured blends have been studied. On crosslinking with TMP the typical 'super contraction' phenomenon of gelatin vanishes. The thermal stability of cured blends is also improved to a great extent (by similar to 55 degrees C for 5:5 gelatin to resin blends). Addition of plasticizer (PEG 400) offers further improvement in thermal stability up to a plasticizer content of 7.7 wt% on gelatin. Beyond 7.7% of plasticizer loading, however, a declining trend in thermal stability is observed. Moreover, the characteristic thermal degradation pattern of the plasticized blends clearly indicates that the plasticizer is chemically bound to gelatin-resin matrix and has a profound influence on thermal behavior of the blends. (C) 1998 Elsevier Science Limited. All rights reserved.

引用

页码：447 / 454

页数：8

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