以甲苯二异氰酸酯（TDI）、嵌段聚醚二醇PE6100以及聚醚胺ED-2003为原料,采用自乳化法合成了固含量40%的非离子型水性聚氨酯（WPU）,通过红外光谱（FT-IR）对产物的结构进行了分析,并对产物的粒径、流变性能、表面张力、临界胶束浓度（CMC）进行了研究,结果表明,得到的WPU具有一定的触变性,平均粒径大多为100nm~400nm,在1g/L的浓度时水溶液的表面张力不超过37mN/m,具有较好的降低水溶液表面张力的能力。
Using toluene diiosocynate（TDI）,polyether glycol PE6100 and polyetheramine ED-2003 as raw materials,a kind of nonionic water-borne polyurethane emulsions （WPU） was synthesized by the acetone method with solid content about 40%.Their structures were characterized by Fourier transform infrared spectrum analysis.The particle size,viscosity and surface activity,including surface tension,critical micelle concentration（CMC） in the aqueous solution were investigated.The results show that these water-borne polyurethane emulsions with particle sizes between 100nm and 400nm exhibit rheology behavior and excellent surface activity,most surface tension of these emulsions is less than 37 mN/m at concentration of 1 g/L.
参考文献
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