Paste for screen printing
Paste for screen printing
here: cathode current collector layer (CCCL) LaSrMnO - type
Preparation
Required utensils and media
- Laboratory balance
- Three roll mill
- Transport medium (binder-solvent mixture)
- Spray-dried powder
- Glass dishes or watch glasses (depending on the quantity to be produced)
- Spatula or paint knife
- Suitable paste container
The CCCL paste should have a weight ratio of total powder quantity to transport medium of 1/1. For this purpose, the spray-dried unmilled LSM powder is weighed into a suitable glass vessel (clock glass or glass dish). Subsequently, the transport medium is weighed in. Both substances are now mixed by hand with a spatula or paint knife until a uniform mixture is obtained.
The mixture is now transferred to the three-roll mill, where it is homogenized twice on each of the gap stages (for detailed gap distances and speeds, see Table 1 in the appendix). The paste is then filled into a waiting paste container and well sealed.
The setting of the required particle size distribution of d10 = < 2,0; d50 = 6,0 –12,0; d90 = > 12 μm is adjusted via the gap distance of the three-roll mill.
The filled paste container is labeled with the data on the paste and marked with hazard symbols (F, Xi) (here: Powder - CCCL - Year of manufacture - Serial no. - Batch no.; Example: LSM - CCCL - 31 - 03 - SP325).
