DMTDA A (5, two, two, 3 amine): it can reduce the reaction rate, and progress of the film flow;
5二甲硫基甲苯二胺）：可降低反应速度，进步涂膜的流平性； ；
The RIM polyurethane elastomer was prepared by means of quasi-prepolymer process, with L-MDI, DMTDA, PPO as materials.
采用半预聚物法合成了以L - MDI、DMTDA、P PO为原料的双组分rim聚氨酯弹性体。
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。
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