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

Cited 0 time in webofscience Cited 0 time in scopus
  • Hit : 58
  • Download : 0
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.
Publisher
KOREAN FIBER SOC
Issue Date
2018-06
Language
English
Article Type
Article
Keywords

LIQUID-CRYSTAL MICROCAPSULES; PARTICLES; STABILITY; WATER; MICROENCAPSULATION; DISPERSIONS; SUSPENSIONS; ADSORPTION; CHITOSAN; ACID)

Citation

FIBERS AND POLYMERS, v.19, no.6, pp.1303 - 1308

ISSN
1229-9197
DOI
10.1007/s12221-018-8134-y
URI
http://hdl.handle.net/10203/244688
Appears in Collection
CBE-Journal Papers(저널논문)
Files in This Item
There are no files associated with this item.

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0