对一系列聚硫聚氨酯(脲)的热降解进行了研究,由异佛尔酮二异氰酸酯(IPDI)、甲苯二异氰酸酯(TDI)、液体聚硫橡胶(LP)以及2,5-二氨基-3,6-二甲硫基甲苯(E300)合成聚硫聚氨酯脲,用TG、DTA、ATR-IR等研究其热降解性能.结果表明,聚硫聚氨酯(脲)的降解分两个阶段.在200 ℃条件下老化一段时间后,聚硫聚氨酯仍保持大部分力学性能.
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