PEA-DMTDA型低硬度聚氨酯材料在扩链系数为0.9时具有最好的力学性能，耐溶剂性能则随着扩链系数的增加而变差。
PU made from PEA and DMTDA have the best mechnical property when the crosslink coefficient is 0.9. But the solvent resistance decreased with increasing crosslink coefficient.
PEA-DMTDA型低硬度聚氨酯材料在扩链系数为0.9时具有最好的力学性能，耐溶剂性能则随着扩链系数的增加而变差。
PU made from PEA and DMTDA have the best mechnical property when the crosslink coefficient is 0.9. But the solvent resistance decreased with increasing crosslink coefficient.
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