论文部分内容阅读
利用高纯单一十二醇聚乙二醇醚C_(12)E_n摸似配制Gauss分布型混合物,测定其水溶液的表面张力、增溶量及去污率。实验结果表明,聚乙二醇链长不同分布的醇醚混合物属于理想混合。混合溶液的P_?、∏cmc随分布宽度增加而增大。形成表面吸附膜及胶束时,短EO链分子占先。胶束溶液对乙苯的增溶量随分子中EO数增多而增大。宽分布C_(12)F_n的去污率优于窄分布,但在一定分布范围内,其影响不显著。
Gauss distribution mixture was prepared by using high purity polyethylene glycol ether C_ (12) E_n, and its surface tension, solubilization capacity and decontamination rate were measured. Experimental results show that polyethylene glycol chain length distribution of different alcohol ether mixture is an ideal mixture. P_ ?, Πcmc of the mixed solution increases with increasing distribution width. The formation of surface adsorption membrane and micelles, short EO chain molecules take precedence. The solubilization of ethylbenzene by micellar solution increased with the increase of EO in the molecule. The decontamination rate of wide distribution C_ (12) F_n is better than that of narrow distribution, but its influence is insignificant within a certain distribution.