文献类型：期刊文献

英文题名：Effect of poly(sodium 4-styrenesulfonate) modified carbon black on the dispersion and properties of waterborne polyurethane nanocomposites

作者：Du, Yi-Fan[1];Shi, Peng-Wei[1];Li, Qiu-Ying[1];Li, You-Chen[1];Wu, Chi-Fei[1]

机构：[1]E China Univ Sci & Technol, Sch Mat Sci & Engn, Key Lab Ultrafine Mat,Minist Educ, Polymer Alloy Lab,Shanghai Key Lab Adv Polymer Ma, Shanghai 200237, Peoples R China

年份：2014

卷号：454

期号：1

起止页码：1

外文期刊名：COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS

收录：;EI(收录号：20141917697836);WOS:【SCI-EXPANDED(收录号:WOS:000337880300001)】；

基金：The authors sincerely acknowledge the National Key Technology R&D Program of China (2012BAD32B01) and the Outstanding Technology Foregoer Plan of Shanghai (12XD1420400).

语种：英文

外文关键词：Waterborne polyurethane; Hydrophilic; Carbon black; Poly(sodium 4-styrenesulfonate); Mechanical properties

摘要：In this work, the poly(sodium 4-styrenesulfonate) modified highly hydrophilic carbon black (PCB) have been successfully prepared by one-step in situ ball milling method. The resulting PCB exhibited an excellent dispersion in water with an encapsulation of 14.9 wt%. The results of laser particle analyzer showed that the PCB exhibited the smallest particle size of 127 nm at the pH of 5 in water. The PCB was firstly used to prepare blend films with waterborne polyurethane (WPU) emulsion and the effect of PCB content on the structure and properties of the resultant films were discussed. The excellent dispersibility of PCB in WPU emulsion through electrostatic repulsion was observed, which played an important role in improving the homogeneous structure of blend films. Compared with the neat WPU films, the tensile strength of the WPU/PCB hybrid films increased from 39.8 to 54.2 MPa and the break elongation decreased from 1200 to 827%. (C) 2014 Elsevier B.V. All rights reserved.