Laminate flooring is a composite floor with a high-density substrate as the main material, and a non-slip coating and decorative paper (impregnated paper) on the surface. Laminate flooring is not like solid wood flooring with wood texture. The wooden texture design needs to be printed out and attached to the surface of the floor. Aluminum oxide powder for laminate flooring is for anti-slip function. In addition, Anti-slip ability is an important index of the quality of laminate flooring. Usually, it is necessary to add fine aluminum oxide powder to the Anti-slip glue in the dipped paper to achieve the wear resistance of the dipped paper.
The anti-slip coating of laminate flooring has the following grades:
| Adding quantity of Aluminum oxide powder for laminate flooring (/m2) | Anti-slip ability |
| 30g | 4000 rpm |
| 38g | 5000 rpm |
| 44g | 9000 rpm |
| 62g | 18000 rpm |
Therefore, the content of Aluminum oxide powder affects the anti-slip index and quality of laminate flooring.
The Aluminum oxide powder for laminate flooring needs to meet the following indicators to be suitable for adding to the wear-resistant coating:
- Whiteness: The whiteness of aluminum oxide should be above 80. So the Al2O3 powder will not affect the color of the wear-resistant glue.
- Fluidity: Since alumina powder needs to be added to the glue, it needs to have good fluidity. The acid pickled and suspension Treated aluminum oxide powder has fewer impurities, so it has better dispersibility and fluidity.
- Anti-slip: There are many kinds of aluminum oxide on the market. Raw industrial alumina powder, calcined alumina powder, and fused alumina powder are all available from many resources. Aluminum oxide powder for laminate flooring produced by a high-temperature melting process has obvious advantages. Fused aluminum oxide has the characteristics of high hardness (Mohs hardness 9.0) and high wear resistance.
- High-temperature resistance and corrosion resistance: The refractory temperature of fused aluminum oxide is high. It will not melt even at a high temperature up to 1850 degrees. It has strong chemical stability and does not react with strong acids.
- Particle size consistency: Good particle size distribution will help wear-resistant powder and the suspending agent scatter in the glue evenly.
- The particle size of Al2O3 powder for anti-slip coating: the particle size of the white aluminum oxide micro-powder is about 80-30 microns. The commonly used mesh sizes are F150, F180 F220, F240, F280, etc.
