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首页> 外文期刊>Journal of Applied Polymer Science >THERMAL AND MECHANICAL BEHAVIOR OF POLYAMIDE 6 POLYAMIDE 61/6T BLENDS
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THERMAL AND MECHANICAL BEHAVIOR OF POLYAMIDE 6 POLYAMIDE 61/6T BLENDS

机译：聚酰胺6聚酰胺61 / 6T共混物的热力学性能

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摘要

The thermal and mechanical properties of blends, obtained by mixing polyamide 6 (PA6) and an amorphous aromatic copolyamide G21 (ISO nomenclature PA 6I/6T), were investigated by differential scanning calorimetry, dynamic mechanical analysis, and mechanical tensile tests. Quenched blends show a single glass transition temperature; the T-g-composition trend was interpreted by means of the Gordon-Taylor equation. The half-time of crystallization decreases by increasing the G21 content and this indicates a depression of the overall crystallization rate. A small decrease in the equilibrium melting temperature of PA6 in the blends was observed; this finding suggests that the interaction parameter in PA6/G21 blends is probably very small. The dynamic mechanical analysis of crystallized blends suggests the presence of a homogeneous amorphous phase even if the crystallization of PA6 occurred. The tensile mechanical properties reveal that G21 acts as stiffener of PA6. The collected experimental data suggest that PA6 and G21 are miscible in the composition range investigated. (C) 1996 John Wiley & Sons, Inc. [References: 23]
机译：通过差示扫描量热法，动态力学分析和机械拉伸试验研究了将聚酰胺6（PA6）和无定形芳族共聚酰胺G21（ISO命名法PA 6I / 6T）混合得到的共混物的热和机械性能。淬火混合物显示出单一的玻璃化转变温度。用Gordon-Taylor方程解释T-g组成趋势。结晶时间的半衰期随着G21含量的增加而减少，这表明总结晶速率降低。观察到共混物中PA6的平衡熔融温度略有下降;这一发现表明，PA6 / G21混合物中的相互作用参数可能很小。结晶共混物的动态力学分析表明，即使发生了PA6的结晶，也存在均匀的非晶相。拉伸机械性能表明，G21用作PA6的增强剂。收集的实验数据表明，PA6和G21在所研究的组成范围内是可混溶的。 （C）1996 John Wiley＆Sons，Inc. [参考：23]

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