Application of titanium dioxide in coatings
Release time:
2022-01-25
Titanium Dioxide from Teng CountyApplications in coatings, water-based latex paint for interior and exterior walls, oil-based exterior wall coatings, marine paint, powder coatings, rolled steel coatings, wood coatings, anti-corrosion coatings, etc. Different coatings use completely different systems, and their main applications and requirements for titanium dioxide from Teng County also vary.
1. Latex paint is water-based, containing no solvents or only a small amount of solvents, with advantages such as weather resistance, washability, and environmental friendliness, making it widely used as building paint. Due to the different emulsion systems used in interior and exterior wall latex paints: acrylic, styrene-acrylic, vinyl acetate, etc., the application performance requirements for titanium dioxide differ. The dispersion, dispersion stability, and hiding power of titanium dioxide in latex paint are crucial.
2. Coil and printed iron coatings are solvent-based. Coil coatings can be divided into inner and outer layers, with the outer layer further divided into primer and topcoat. The requirements for the top layer are high, and the requirements for the topcoat are even higher. The dispersion requirements for domestic titanium dioxide are not strict, but the hiding power requirements are high. Generally, rutile-type coatings are used for coils, with relatively low requirements for the inner backing paint. The surface coating can use rutile-type coatings or imported rutile-type coatings.
3. The key to selecting titanium dioxide for anti-corrosion coatings depends on dispersion, dispersion stability, and hiding power. Currently, domestic products are mainly used for primers, while topcoats with high weather resistance requirements still mainly use imported weather-resistant grade titanium dioxide.
4. The dispersion of furniture paint is very important for the application of domestic titanium dioxide in furniture paint. After fine-tuning through film post-processing, the fineness of titanium dioxide reduces water-soluble substances, preventing clumping, lowering oil absorption, and improving whiteness, resistivity, color difference reduction, hiding power, pigment grinding dispersion, paint storage stability, water resistance of the paint film, light resistance, weather resistance, and durability, thereby enhancing the quality of titanium dioxide.
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How to choose genuine rutile titanium dioxide
Rutile titanium dioxide is widely used in industries such as coatings, plastics, rubber, and inks. Rutile titanium can achieve the same technical performance as titanium dioxide, significantly reducing raw material costs. There are many fake rutile titanium dioxide products on the market, which can lead to the precipitation of white substances during plastic processing, mixed with a lot of calcium powder. To adjust the oil absorption changes caused by the addition of calcium powder, wax powder is added, deceiving many consumers. So how can we identify the authenticity of rutile titanium dioxide? 1. Chemical methods: 1. Add light calcium or heavy calcium to dilute sulfuric acid or hydrochloric acid: bubbles will make the solution turbid because calcium carbonate reacts with acid to produce carbon dioxide; 2. Add titanium white powder, dilute sulfuric acid or hydrochloric acid, which will have a rotten egg smell; 3. Make latex paint, add iron red, if the color is dark, it indicates poor hiding power, which is either fake or of poor quality titanium dioxide. 2. Physical methods: 1. A simple method is to compare the feel; fake titanium dioxide is smooth, while real titanium dioxide feels awkward; 2. Wash with water; fake titanium dioxide easily washes off hands, while real titanium dioxide does not; 3. Take a cup of clean water and add titanium dioxide. The one that floats is real, and the one that settles is fake. After understanding the methods to distinguish the authenticity of rutile titanium dioxide, let's look at...
2023-01-10
Differences in performance between rutile titanium dioxide and anatase titanium dioxide
The performance differences between rutile titanium dioxide and anatase titanium dioxide powder 1. Crystals with internal structure Titanium dioxide has three different crystal structures: rutile titanium dioxide, anatase titanium dioxide, and flaky titanium dioxide, which are all different. Among them, the crystal structure of rutile titanium dioxide is the most stable, while the crystal structure of flaky titanium dioxide is rarely used. This is mainly because its internal crystal structure is unstable, making it unable to be preserved stably in nature for a long time. 2) Melting point and boiling point The melting point and boiling point of anatase titanium dioxide do not actually exist, because anatase titanium dioxide will convert to rutile at high temperatures. Only rutile titanium dioxide has a melting point and boiling point. The melting point of rutile titanium dioxide is 1850°C, the melting point of air is (1830±15)°C, and the melting point of oxygen-rich titanium dioxide is 1879°C. The melting point is related to the purity of titanium dioxide. The boiling point of rutile titanium dioxide is (320 anatase titanium dioxide 300)°C, and there is slight volatility at this high temperature. 3) Dielectric constant Titanium dioxide has excellent electrical properties due to its high dielectric constant. When measuring certain physical properties of titanium dioxide, the crystallographic direction of the titanium dioxide crystal must be considered. Anatase titanium dioxide.
2023-01-04
Key words: tengxian titanium dioxide, titanium dioxide, rutile, titanium dioxide manufacturers, anatase titanium dioxide, titanium dioxide manufacturers, anatase titanium dioxide, rutile titanium white
Contact Information
Address: Teng County, Guangxi Chemical Industry Zone