Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/25436
Title: Effect of surface coating on the rheological properties of a highly opaque nano-TiO2/HIPS composite
Authors: Tang, CY 
Yue, TM 
Chen, DZ
Tsui, CP 
Issue Date: 2007
Source: Materials letters, 2007, v. 61, no. 23-24, p. 4618-4621
Abstract: The focus of this study is to investigate the influence of the interface bonding on the rheological behavior of the nano-sized titanium dioxide (nano-TiO2)/high impact polystyrene (HIPS) composite. The surfaces of nano-TiO2 used as the reinforced phase were first coated with polystyrene by in-situ emulsion polymerization. Thereafter, the nano-TiO2/HIPS composite was prepared by melt compounding. The results from the measurements of field emission-scanning electron microscope (FE-SEM) and ultraviolet-visible (UV-Vis) spectrophotometer confirmed high opaqueness and greatly improved interface adhesion between fillers and the matrix. The introduction of surface-coated particles remarkably increases the shear viscosity of the composite melts in the low shear rate region due to the strong interfacial interaction. For instance, at the shear rate of 0.02 s- 1, 25 wt.% nano-TiO2 increases the shear viscosity by 111.4% related to pure HIPS melts. Furthermore, compared with the uncoated nano-TiO2/HIPS composite, the composite containing surface-coated nano-TiO2 exhibits a measurable shear-thinning property.
Keywords: Composite materials
Opacity
Polymers
Rheology
Surface coating
Publisher: Elsevier
Journal: Materials letters 
ISSN: 0167-577X
EISSN: 1873-4979
DOI: 10.1016/j.matlet.2007.02.060
Appears in Collections:Journal/Magazine Article

Access
View full-text via PolyU eLinks SFX Query
Show full item record

SCOPUSTM   
Citations

11
Last Week
0
Last month
0
Citations as of Jul 11, 2020

WEB OF SCIENCETM
Citations

10
Last Week
0
Last month
0
Citations as of Jul 10, 2020

Page view(s)

121
Last Week
6
Last month
Citations as of Jul 13, 2020

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.