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Journal of Dispersion Science and Technology Volume 32, 2011 - Issue 10
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Original Articles

Effect of pH-Responsive on the Dispersion of PVM/MA Grafted Carbon Black in Water and Waterborne Polyurethane

Yubin Bao Shanghai Key Laboratory Polymeric Materials, East China University of Science and Technology, Shanghai, P. R. China; Key Laboratory of Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai, P. R. China; Polymer Alloy Lab, School of Material Science and Engineering, East China University of Science and Technology, Shanghai, P. R. China
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Jianfeng Huang Shanghai Key Laboratory Polymeric Materials, East China University of Science and Technology, Shanghai, P. R. China; Key Laboratory of Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai, P. R. China; Polymer Alloy Lab, School of Material Science and Engineering, East China University of Science and Technology, Shanghai, P. R. China
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Pengfei Xue Shanghai Key Laboratory Polymeric Materials, East China University of Science and Technology, Shanghai, P. R. China; Key Laboratory of Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai, P. R. China; Polymer Alloy Lab, School of Material Science and Engineering, East China University of Science and Technology, Shanghai, P. R. China
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Jibin Wang Shanghai Key Laboratory Polymeric Materials, East China University of Science and Technology, Shanghai, P. R. China; Key Laboratory of Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai, P. R. China; Polymer Alloy Lab, School of Material Science and Engineering, East China University of Science and Technology, Shanghai, P. R. China
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Qiuying Li Shanghai Key Laboratory Polymeric Materials, East China University of Science and Technology, Shanghai, P. R. China; Key Laboratory of Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai, P. R. China; Polymer Alloy Lab, School of Material Science and Engineering, East China University of Science and Technology, Shanghai, P. R. ChinaCorrespondence[email protected]
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Chifei Wu Shanghai Key Laboratory Polymeric Materials, East China University of Science and Technology, Shanghai, P. R. China; Key Laboratory of Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai, P. R. China; Polymer Alloy Lab, School of Material Science and Engineering, East China University of Science and Technology, Shanghai, P. R. China
&
Weihong Guo Shanghai Key Laboratory Polymeric Materials, East China University of Science and Technology, Shanghai, P. R. China; Key Laboratory of Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai, P. R. China; Polymer Alloy Lab, School of Material Science and Engineering, East China University of Science and Technology, Shanghai, P. R. China
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Pages 1459-1464 | Received 07 Jun 2010, Accepted 13 Jul 2010, Published online: 20 Sep 2011
 
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Abstract

The pH-responsive polyelectrolyte, named poly(methyl vinyl ether-alt-maleic anhydride) (PVM/MA), was grafted onto the surface of carbon black (CB) by ultrasonically degraded method. The effect of pH on the dispersion of PVM/MA grafted CB in water and waterborne polyurethane (WPU) was studied. Particle size of PVM/MA grafted CB and its transmission electron microscope images showed the increasing of pH in the suspension of grafted CB easily causes the aggregates of grafted CB. Furthermore, scanning electron microscope images showed grafted CB had better dispersibility than that of untreated CB in WPU emulsion or corresponding solid composite. When grafted CB was neutralized in aqueous solution, the compatibility between PVM/MA grafted CB and WPU got poor. In addition, the dispersion of grafted CB in solid composite could be controlled through tuning the composite resistance.

Acknowledgments

This work is supported by National Natural Science Foundation of China (Grant No. 50733001), Shanghai Leading Academic Discipline (B502) and Shanghai Key Laboratory Project (08DZ2230500).

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Related Research Data

Preparation and characterization of water-dispersible carbon black grafted with polyacrylic acid by high-energy electron beam irradiation
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