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Preparation of Titanium Dioxide Composite Filler via Chemical Precipitation Method and Its Application in Decorative Base Paper
Received:May 01, 2023  
DOI：10.11980/j.issn.0254-508X.2023.12.006
Key Words:titanium dioxide  talc  decorative base paper  composite filler
Fund Project:浙江省自然科学基金（LQ23C160001）。
Author NameAffiliationPostcode
ZHANG Yan* Hangzhou Huawang New Material Technology Co.， Ltd.， Hangzhou， Zhejiang Province， 311305
School of Environmental and Natural Resources， Zhejiang University of Science and Technology， Hangzhou， Zhejiang Province， 310023
Tianjin Key Lab of Pulp & Paper， Tianjin University of Science & Technology， Tianjin， 300457 		300457
WANG Huile School of Environmental and Natural Resources， Zhejiang University of Science and Technology， Hangzhou， Zhejiang Province， 310023 310023
WU Haibiao Hangzhou Huawang New Material Technology Co.， Ltd.， Hangzhou， Zhejiang Province， 311305 311305
LIU Zhong Tianjin Key Lab of Pulp & Paper， Tianjin University of Science & Technology， Tianjin， 300457 300457
JIN Di Hangzhou Huawang New Material Technology Co.， Ltd.， Hangzhou， Zhejiang Province， 311305 311305
YE Bin Hangzhou Huawang New Material Technology Co.， Ltd.， Hangzhou， Zhejiang Province， 311305 311305
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Abstract:With talc as the matrix， titanium sulfate as the source of titanium， urea as the precipitant， and Zn（NO3）2 as the crystalline accelerator， chemical precipitation method was used to prepare rutile-type titanium dioxide （TiO2）， which deposited on the surface of talc to prepare TiO2/talc composite filler. The results showed that the optimum condition was suspension mass fraction of 5%， hydrolysis temperature at 80 ℃， pH value=1.7， aging time for 3.0 h， titanium liquid concentration of 0.25 mol/L， dropping velocity of 3 mL/min and calcination temperature at 800 ℃.When the composite filler obtained under this condition was added to the decorative base paper， the opacity and whiteness of prepared paper were 97.3% and 84.5%， respectively when the amount of filling was 30%， which were relatively similar to the performance of the paper filled with TiO2， indicating that composite filler could replace TiO2 used in the decorative base paper.
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