Description
Nano aluminium oxide for insulating materials
Introduction:
Nano-alumina (L30JY) is widely used in plastics, rubber, ceramics, coatings, polyamide films (belts), polyester films (belts), soft composite materials (DM, DMD, NHN, NMN, etc.), polyester fiber cloth (belts) and other insulation products because of its uniform particle size distribution, high resistivity and good insulation performance.
Application:
- Insulating coatings, coatings, coatings: Adding nano-alumina (L30JY) in the coating can improve the density and dielectric breakdown strength of the coating, and the comprehensive insulation performance is the best. High-temperature resistance at the same time
- Heat conduction and insulation composite material: adding nano-alumina (L30JY) into resin, plastic and rubber, the insulation performance and thermal conductivity are obviously improved, the insulation performance can be improved more than three times, and the heat conduction network chain is formed.
- insulator material for high-pressure lead-in rods:
The high-voltage lead-in rod prepared by adding nano-alumina (L30JY) has excellent acid corrosion resistance and electrical properties, and high mechanical strength. It can be widely used in chemical industry, metallurgy, electric power, electronics and other applications where the environment is harsh or has special requirements.
- batteries for electric vehicles, laptop computers, lithium batteries
The positive and negative electrodes are sealed by alpha nano alumina electrical insulators to improve safety performance.
Nano aluminium oxide for insulating materials
Technical indicators:
| Item | Index |
| Model | VK-L30JY |
| Appearance | White powder |
| Crystalline phase | α phase |
| Al2O3 content﹪ ≥ | 99.99 |
| Specific surface area(m2/g) | 15-25 |
| Average particle size nm | 30nm |
Function:
(1) When the content of nano-Al2O3 is less than 14%, the viscosity of the adhesive is not faster than that of pure polyamide resin, so the existence of nano-Al2O3 and precursor has little effect on the storage stability of the adhesive.
(2) The apparent decomposition temperature of the composite film increases with the increase of nano-Al2O3 content, reaching the maximum value at about 5%, then decreases, which is about 10 degrees higher than that of pure PI film.
(3) With the increase of nano-Al2O3 content, the tensile strength of the film first increases, reaches the maximum at 5%, then decreases, and increases by 47% compared with the pure PI film.
(4) Under normal conditions, when the content of nano-Al2O3 is 10%, the volume resistivity of the composite film reaches the maximum value, which is an order of magnitude higher than that of pure PI. Therefore, adding a certain amount of Al2O3 can improve the electrical insulation of the composite film, especially the high-temperature volume resistivity.
