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STUDY ON THE INTERACTION CHARACTERISTICS BETWEEN DIFFERENT CWS DIPERSANTS AND COALS Ⅰ. EFFECT OF THE INTERACTION OF COMPLEX COAL PARTICLE ON CWS RHEOLOGICAL BEHAVIOR
Author(s): 
Pages: 519-524
Year: Issue:  6
Journal: JOURNAL OF FUEL CHEMISTRY AND TECHNOLOGY

Keyword:  水煤浆分散剂流变特性复合煤粒相互作用;
Abstract: 使用12种不同分散剂对14种不同变质程度的煤进行了成浆性实验,分析了182个水煤浆(CWS)样品的流变性.结果表明,低变质程度和高灰煤浆多呈屈服假塑性,煤的性质起主导作用;变质程度高且灰分较低煤浆的流变性,主要依赖于分散剂的结构与性质;分子结构单元立体空间效应大,疏水基团与亲水基团呈立体间隔分布的分散剂,易形成屈服假塑性CWS;分子线度长,亲水基团与疏水基团呈线性间隔分布的分散剂,易形成胀塑性CWS.复合煤粒间的相互作用方式是决定CWS流变特性的关键.
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