Hydrophobic modification of dickite and salt spray test study on LLDPE/modified dickite composite
Article first published online: 22 FEB 2010
Copyright © 2010 Wiley Periodicals, Inc.
Journal of Applied Polymer Science
Volume 116, Issue 6, pages 3480–3488, 15 June 2010
How to Cite
Xue, B., Jiang, Y., Li, F., Xia, M., Sun, M., Liu, D., Zhang, X. and Yu, L. (2010), Hydrophobic modification of dickite and salt spray test study on LLDPE/modified dickite composite. J. Appl. Polym. Sci., 116: 3480–3488. doi: 10.1002/app.31897
- Issue published online: 10 MAR 2010
- Article first published online: 22 FEB 2010
- Manuscript Accepted: 27 NOV 2009
- Manuscript Received: 1 JUL 2009
- The National Natural Science Foundation of China. Grant Numbers: 50574043, 40772028
- Automotive Engineering of Jilin University (Project 985).
Dickite particles were modified by silane coupling agent, hexadecyl phosphate, oleic acid, and stearic acid (SA), respectively. Modified dickite was composed with linear low-density polyethylene (LLDPE) to prepare a series of LLDPE/modified dickite composites. Hydrophilicity of modified dickite was characterized by dispersion experiments and contact angle tests. The results indicated that hydrophilicity of modified dickite decreases sharply, compared with nonmodified dickite. Among four modifying agents, SA had obvious effect on hydrophobic modification of dickite. Fourier-transform infrared spectra results suggested that chemical bonding between modifying agent and dickite was beneficial to the hydrophobic modification. Results of salt spray tests illustrated that the introduction of modified dickite into LLDPE improved the anticorrosion properties of the polymer universally. The anticorrosion mechanism of LLDPE/modified dickite was analyzed by scanning electron microscope micrograph. The mechanical properties of the resultant composites displayed a fact of reinforcement of modified dickite. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2010