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首页> 外文期刊>Journal of Applied Polymer Science >Interchain crosslinkable polymer blends of polyurethane and polyacrylic elastomer (Sulfur cure)
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Interchain crosslinkable polymer blends of polyurethane and polyacrylic elastomer (Sulfur cure)

机译：聚氨酯和聚丙烯丙烯酸弹性体的链间可交联聚合物共混物（硫磺固化）

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摘要

Blends of polyurethane and polyacrylic elastomers prepared by three different blending techniques have been studied in different blend ratios. The processability of the polyurethane elastomer was improved as a result of blending with the polyacrylic elastomer. The blending technique has a significant role in determining the physical properties of the blends. Improvement of physical properties was observed in the blends containing the interchain crosslink bonds. IR spectral analysis suggested the formation of interchain crosslink between the two elastomers phases on heat treatment, before the addition of any curatives. Thermal stability of the blends was also improved when preblending and preheating techniques were applied. The extraction of the single phase by solvent was also restricted to a significant extent for the preheated sample probably due to the interchain crosslinking. (C) 2004 Wiley Periodicals, Inc. J. Appl Polym Sci 93: 845-853, 2004.
机译：已经研究了通过三种不同的共混技术制备的聚氨酯和聚丙烯酸酯弹性体的共混物，其共混比例不同。与聚丙烯酸酯弹性体共混的结果是改善了聚氨酯弹性体的加工性能。共混技术在确定共混物的物理性能方面具有重要作用。在含有链间交联键的共混物中观察到物理性能的改善。红外光谱分析表明，在添加任何固化剂之前，热处理后两个弹性体相之间会形成链间交联。当应用预混和预热技术时，共混物的热稳定性也得到改善。对于预热的样品，溶剂的单相萃取也受到很大程度的限制，这可能是由于链间交联所致。 （C）2004 Wiley Periodicals，Inc. J.Appl Polym Sci 93：845-853，2004。

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