扫描探针显微镜在炭黑/苯乙烯-丁二烯-苯乙烯嵌段共聚物结合橡胶微观结构研究中的应用

摘要

The microstructures of SBS and carbon black/SBS mixture were studied by DFM pattern of scanning probe microscopy (SPM). The results showed that,the microstructures of SBS solution in different concentration were significantly different. The separated substances of carbon black/SBS mixture appeared "bracelets" ring structure,and the size was about 100 nm. The length of the substance connected with carbon black was 200~300 nm.and the transverse diameter was nearly 100 nm, which was initially determined as carbon black/SBS bound rubber.%利用扫描探针显微镜(SPM)的DFM模式观察苯乙烯-丁二烯-苯乙烯嵌段共聚物(SBS)和炭黑/SBS混合物的微观形貌.结果表明:不同浓度的SBS溶液的微观形貌差异较大；炭黑/SBS混合物的分离物成“手镯”环状结构,尺寸为100 nm左右,与炭黑相连物质的长度为200～300 nm,横向直径约为100 nm,与SBS单体的尺寸吻合,可初步判定该结构为炭黑/SBS结合橡胶.