Preparation and Application of Environmentally Friendly Antitust Silica Pigment
A silica gel carrier is prepared using sodium silicate and sulfuric acid as raw materi-als,and then modified using calcium ion modifiers under specific conditions to obtain the environ-mental-friendly antirust pigment.The influence of different processes(e.g.,alcium ion modifiers type,calcium dosage,aging time and conductivity)on the properties of antirust pigment is investi-gated.It is revealed that the optimal material performance is obtained when calcium oxide is used as the calcium ion modifier,the conductivity is less than 200 μs/m,calcium dosage is 6％,and the aging time is 4 hours.Additionally,its salt spray performance in waterborne acrylic anticorrosive coatings is significantly better than that of zinc phosphate.
万方数据
维普
