Interfacial tension in polymer blends

被引：0
|
作者：
Luciani, A [1 ]
Champagne, MF [1 ]
Utracki, LA [1 ]
机构：
[1] Ecole Polytech Fed Lausanne, Lab Technol Composites & Polymeres, DMX, LTC, CH-1015 Lausanne, Switzerland
来源：
6TH DRESDEN POLYMER DISCUSSION - SURFACE MODIFICATION | 1998年 / 126卷
关键词：
D O I：
暂无
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Theoretical models of the interfacial tension coefficient in polymer blends, nu(12), were evaluated. A new working relation was derived that makes it possible to compute nu(12) from the chemical structure of two polymers. The calculations involve determination of the dispersive, polar and hydrogen-bonding parts of the solubility parameter from the tabulated group and bond contributions. The computed values of nu(12) for 46 blends were found to follow the experimental ones with a reasonable scatter of +/- 36%. Next, the experimental methods of nu(12)-measurements were critically examined. Although many have been developed for low viscosity Newtonian fluids, most are irrelevant to industrial polymeric systems. For the present studies two were selected. Values of nu(12) were measured using the so-called "capillary breakup method," and a newly developed method based on the retraction rate of deformed drop.
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页码：307 / 321
页数：15
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