Polypropylene/Polystyrene(PP/PS) blends modified by reactive monomer,such as acrylic acid(AA) and styrene(St) were prepared by melting method.
制备了反应性单体(S t、AA)改性PP/PS共混物,用TEM、SEM、POM和DM A研究了改性对PP/PS共混物的相结构与动态力学性能的影响。
Polypropylene/polystyrene (PP/PS 80/20) blends and PP/PS80/20 modified by reactive monomers, such as acrylic acid (AA), styrene (St), and their co-monomer were prepared by extrusion method.
制备了聚丙烯 聚苯乙烯(PP PS)共混物和反应性单体苯乙烯(St)、丙烯酸(AA)及其混合单体改性PP PS共混物,用扫描电镜(SEM)、偏光显微镜(POM)和动态黏弹谱仪(DMA)研究了反应性单体改性PP PS共混物的相形态与动态力学行为。
PP/PS blends modified by grafted PP and reactive monomer were prepared by twin screw extruder.
制备了三种反应性单体和两种PP接枝物改性的PP／PS共混物,用DSC研究了改性PP／PS共混 物的结晶与熔融行为。
By calculation in the thermodynamic method,it determines the reactive ratio(saturation index) of mineral dissolution sediment of carbonate rock and sulfate rock,therefore,partitions the environmental protection area of Karst groundwater and puts forward protection measures.
通过对延河泉域地质、水文地质和水文地球化学分带特征的分析,运用热力学方法计算,确定了碳酸盐岩、硫酸盐岩矿物溶沉方向的反应比率(饱和指数),以此划分了岩溶地下水的环境保护区,并提出了保护措施。
