General knowledge of coating: application of nano titanium dioxide in coating

It is suggested that nano-TiO2 has a variety of singular properties and unique uses that ordinary pigment TiO2 does not have Nano-TiO2 particles have the characteristics of small size, strong UV absorption, stable optical performance, good dispersion, large specific surface area, high surface binding energy, etc when applied to coatings, the properties of coatings are stable, and the optical properties, magnetic properties, electrical properties, mechanical properties of coatings are improved or new functions are displayed It has strong adhesion, flexibility, impact resistance and anti-aging ability When the dosage is 1% ~ 3%, Paint knowledge | precautions for wall paint color selection Recommended introduction: when painting the wall, the owner sometimes has difficulty in choosing what color of the wall paint to paint In fact, there is no ugly color in the wall paint, only the disharmonious color matching The use of wall color contains the knowledge of health Too strong color will stimulate people's perception, make people have a sense of fidgety, affect people's mental health Grasp the basic principles of wall color and paint a colorful space 1、 Wall paint color selection notice 1 Light color is generally used for the top surface Light colors make people feel light, dark colors make people feel heavy Usually, the treatment of rooms is from top to bottom, from shallow to deep For example, the ceiling and walls of rooms are white and Home of coatings news: due to the various singular properties of nano-TiO2, it has a variety of unique uses that ordinary pigment TiO2 does not have Nano-TiO2 particles have the characteristics of small size, strong UV absorption, stable optical performance, good dispersion, large specific surface area, high surface binding energy, etc when applied to coatings, the properties of coatings are stable, and the optical properties, magnetic properties, electrical properties, mechanical properties of coatings are improved or new functions are displayed It has strong adhesion, flexibility, impact resistance and anti-aging ability When the addition amount is 1%~3%, the adhesive force is changed from 5 to 1 grades, the flexibility is increased from 5mm to LMM, the impact resistance is increased from 20kg cm to 60kg cm, and the anti-aging time is increased from 500h to 2000h Especially with the angle heterochromatic effect is particularly significant Its application in coatings mainly includes the following aspects 1 As an effect pigment, it is the most important application of nano-TiO2 in the automotive finish with the effect of angular heterochromism If it is combined with mica pearlescent pigment (or aluminum powder pigment) in the ratio of 1:1 or 2:1, it will produce two-color effect, i.e with angle heterochromatic effect This kind of metallic flash coating can see different flash colors and blue light with different angle changing colors when viewed from different directions If it is used with silver white pearlescent titanium dioxide pigment (or aluminum powder pigment), the coating will be applied when facing up It has a golden metal appearance and a blue flash when viewed horizontally The continuous change between the golden light and the blue light will penetrate all the arc surfaces and edges of the coating surface, so it can increase the fullness and color beauty of the metal finish color (see the figure below) The changeable color and unique optical properties of this effect pigment soon gained the popularity of automobile coating manufacturers, making it the highest grade pigment and used for the finishing coat of luxury cars When nano-TiO2 is added to metallic flash paint for car, not only the color effect of the coating is good, but also the adhesion, impact resistance and weather resistance of car paint are obviously improved In 1985, BASF first applied nano-TiO2 to metallic car topcoat, and applied for patent in 1985 In 1989, Ford Motor Company first used nano-TiO2 in metallic car topcoat successfully Up to now, at least 11 kinds of metallic flash finish containing nano-TiO2 have been applied in the world At present, more than half of the cars in the world use metallic flash finish Home of coatings is specialized in coatings, diatom mud, paint coating, coating technology, fire retardant coating news and coating, diatom mud, paint coating, coating technology, fire retardant coating decoration knowledge and decoration renderings,