Hard Surface-adhesive Properties of TiO2 Nanoparticlesencapsulated Microparticles Prepared by Spray Drying and Surface Coating Method 


Vol. 19,  No. 6, pp. 1303-1308, Jun.  2018
10.1007/s12221-018-8134-y


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  Abstract

The aim of this study is to compare hard surface-adhesive properties of TiO2 nanoparticles (TNPs)-encapsulated microparticles prepared by spray drying and surface coating method. Thus, TNPs were encapsulated with chitosan by spray drying and poly(L-lysine) by surface coating method, which were selected as positively charged materials. And then, the TNPs-encapsulated microparticles were investigated by particle surface properties and adhesion properties on hydroxyapatite (HAP) surface as model for hard surface-adhesion. The characteristics of TNPs-encapsulated Chitosan microcapsules (CM) and TiO2 nanoparticles coated with cationic poly(L-lysine) polymer (TNPs-PLL) were determined with scanning electron microscope (SEM) image and zeta-potentials. The hard surface-adhesive properties on HAP surface were confirmed with SEM and whitening test. The zeta-potentials of TNPs and HAP were negative, -13 mV and -18 mV respectively, while TNPsencapsulated CM, and TNPs-PLL of positively charged polymers were positive, 13 mV and 57 mV respectively. Whitening test was carried out on model surface when shaking the samples. TNPs-PLL were adhered to HAP surface very much more than those of TNPs-encapsulated CM. Also, the change value of whiteness of the HAP surface treated with TNPs-PLL is large evidently, compared with TNPs-encapsulated CM.

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  Cite this article

[IEEE Style]

S. Kim, J. Kim, S. Lee, "Hard Surface-adhesive Properties of TiO2 Nanoparticlesencapsulated Microparticles Prepared by Spray Drying and Surface Coating Method," Fibers and Polymers, vol. 19, no. 6, pp. 1303-1308, 2018. DOI: 10.1007/s12221-018-8134-y.

[ACM Style]

Su-Kyung Kim, Jong-Duk Kim, and Seung-Jun Lee. 2018. Hard Surface-adhesive Properties of TiO2 Nanoparticlesencapsulated Microparticles Prepared by Spray Drying and Surface Coating Method. Fibers and Polymers, 19, 6, (2018), 1303-1308. DOI: 10.1007/s12221-018-8134-y.

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pISSN : 1229 - 9197
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