Preparation, characterization, and properties of modified barium sulfate nanoparticles/polyethylene nanocomposites as T-shaped copper intrauterine devices
Article first published online: 29 JAN 2014
Copyright © 2014 Wiley Periodicals, Inc.
Journal of Applied Polymer Science
Volume 131, Issue 12, June 15, 2014
How to Cite
2014). Preparation, characterization, and properties of modified barium sulfate nanoparticles/polyethylene nanocomposites as T-shaped copper intrauterine devices. J. Appl. Polym. Sci. 131, 40393, doi: 10.1002/app.40393, , and (
- Issue published online: 16 MAR 2014
- Article first published online: 29 JAN 2014
- Manuscript Accepted: 4 JAN 2014
- Manuscript Received: 6 SEP 2013
- biomedical applications;
To improve the mechanical properties and shelf-life of barium sulfate nanoparticles (BaSO4-NPs)/polyethylene (PE) composites, which are used as the scaffold of T-shaped copper intrauterine devices (Cu-IUDs) in the clinic, an Al coupling agent was used to modify BaSO4-NPs. The influence of the Al coupling agent on the microstructures, properties, and shelf-life of the nanocomposites were investigated. The results showed that: (1) a chemical reaction occurred between the Al coupling agent and the hydroxyl groups adsorbed by BaSO4-NPs. (2) BaSO4-NPs modified by the Al coupling agent dispersed in the PE matrix were much better than unmodified NPs. The interface bonding between modified NPs and the PE matrix was better than unmodified NPs. (3) the maximum tensile strength of nanocomposites containing modified NPs was 11.87 MPa, flexural strength was 6.61 MPa, and the elongation rate was 66.78%. (4) After an accelerated aging experiment, the tensile strength of the nanocomposites only decreased 5–15%. All of these results indicate that m-BaSO4-NPs/PE nanocomposites are more clinically useful than unmodified nanocomposites. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014, 131, 40393.