研究认为热处理提高了TPU的微相分离程度，完善了TPU中的软硬段结构。
It's caused by the micro phase separation degree of TPU is increased as well as the soft hard segment structure is perfected.
多交联体系材料微区结构上交联密度差异程度不同影响材料的微相分离和耐热性能。
The thermal properties of multi-crosslink PU were much dependent on the differences between crosslink densities of micro-domains.
多交联体系材料微区结构上交联密度差异程度不同影响材料的微相分离和耐热性能。
The thermal properties of multi-crosslink PU were much dependent on the differences between crosslink densities of micro-domains.
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