Problems that are easy to see when decorating aluminum-plastic panels
ã€China Aluminum Industry Network】Aluminum plastic board is a new type of material used in decoration, which is welcomed by people. The reason why people are favored is because it has many advantages in itself, but it also has some disadvantages. People need to take into account its shortcomings when using it, and to avoid it.
1. Cobalt oxide: usually cobalt oxalate or cobalt carbonate as raw materials calcined at 500-600 ℃ cobalt oxide, the main reaction is as follows:
CoC2O4 == CoO + CO + CO2; CoCO3 == CoO + CO2
2. Cobalt hydroxide: It can usually be neutralized with sodium hydroxide solution in cobalt chloride solution or cobalt sulfate solution. The main reactions are as follows:
Co2 ++ 2OH - == Co (OH) 2 Co (OH) 2 + O2 + 2H2O == 4Co (OH) 3
3. Cobalt chloride: usually available cobalt powder with dilute hydrochloric acid into cobalt chloride solution, and then crystallized by evaporation of cobalt chloride crystals, the main reaction is as follows: Co + HCl --- COCl2; Co + H2SO4 --- COSO4
4. Cobalt sulfate: usually cobalt oxide as raw material, dissolved in sulfuric acid after evaporation crystallization of pink cobalt sulfate crystals, the main reaction is as follows: CoO + H2SO4 == CoSO4 + H2O
5. Cobalt carbonate: It can usually be obtained by precipitation with sodium carbonate solution in cobalt chloride solution or cobalt sulfate solution. The main reactions are as follows:
CoCl2 + Na2CO3 == CoCO3 + 2NaCl
6. Cobalt oxalate: It can usually be precipitated with ammonium oxalate solution in cobalt chloride solution or cobalt sulfate solution. The main reactions are as follows:
(NH4) 2C2O4 + CoCl2 == CoC2O4 + 2NH4Cl
7. Oxidation of high cobalt: cobalt carbonate or cobalt oxalate can usually be heated in oxygen, further oxidation obtained, the main reaction is as follows:
3CoCO3 + O2 ==== Co2O3 ++ CO2; CoC2O4 + O2 ==== Co2O3 + CO2 + CO
8. Cobalt Hydroxide: 4Co (OH) 2 + O2 + 2H2O === 4Co (OH) 3; 2Co (OH) 2 + NaClO + H2O == 2Co (OH) 3 +
2Co (OH) 3 + 6HCl == 2CoCl2 + Cl2 + 6H2O
Cobalt Compounds Cobalt Compounds,Spinel Compounds,Multi-Functional Electrolytic Copper,High-Volume Electrolytic Copper Ningxia Tongji International Trade Co.,Ltd. , https://www.tongjiinternational.com
The disadvantage of aluminum-plastic panels is the need to distinguish the material. It has two kinds of interior decoration and outdoor decoration. Once it is confused, the indoor use can be used outdoors, and it is easy to cause discoloration and fading. The same precautions should be taken when choosing adhesives. For different applicable environments, different glues should be selected. Otherwise, there will be serious problems such as opening and dropping. In the problem of the deformation of the surface of the aluminum-plastic panel, it is mainly the responsibility of the basic plate, and then it is its own problem. To avoid this problem, it is better to use treated materials.