通过在高分子共混物内部引入不同的第三相界面 ,系统地研究了退火热处理条件下该界面对于共混物梯度相形态形成的影响 .对具有一定初始粒径的共混物体系或初始近似为均相的共混体系 ,在第三相界面的诱导下 ,均能形成梯度相形态 .探讨了诱导界面间距与体系相结构的关系 .结果表明 ,当两个诱导界面间距小于所生成梯度层厚度的两倍时 ,梯度结构趋于交叠 .继续减小诱导界面间距 ,则梯度结构趋于消失 ,诱导界面间共混物中分散相粒子快速长大 ,界面的诱导作用遍布整个样片 ,证实了我们所提出的“高分子共混物中二维条件下界面诱导加速分散相粒子粗化凝聚”的结论 By introducing different third phase interfaces into the polymer blends, the influence of the interface on the gradient phase morphology of the blends was investigated systematically under the annealing heat treatment conditions.For the blends with a certain initial particle size or initial Which is similar to the homogeneous phase, can form gradient phase morphology under the induction of the third phase interface.The relationship between the induced interface spacing and the phase structure of the system is discussed.The results show that when the distance between the two induced interfaces is less than the generated gradient When the layer thickness is doubled, the gradient structure tends to overlap.When the interfacial distance is decreased, the gradient structure tends to disappear, the dispersed phase particles in the interfacial interphase rapidly grow up and the interface induces over the entire sample, Confirmed our proposed “polymer blends under two-dimensional conditions, the interface induced acceleration of dispersed particles coarse cohesion” conclusion