摘要
The concept of ambient temperature curable TiB 2 cathode coating was put forward, and the ambient temperature curable TiB 2 cathode coating was prepared successfully. Differing from the previous TiB 2 cathode coating solidified approximately at 200 ℃,the ambient temperature curable TiB 2 cathode coating can be solidified at room temperature, so the heating equipment is not necessary, which simplifies the preparation process and facilitates the industrial application of TiB 2 cathode coating. Many kinds of resin and curing agent were investigated. On the above mentioned basis, the ambient temperature curable TiB 2 cathode coating was prepared with furan resin 5 500 mixed with complex resins B as carbon binder and DXG1 as curing agent in 24 h. The results show that the properties of prepared coating are excellent, the electrical resistivity is 29.8 μΩ·m, the compressive strength is 33.6 MPa, which are all better than the relevant properties of partially graphitized cathode carbon block for aluminum electrolysis prescribed by the GB 8744 88. SEM morphologies show that the section morphology of the TiB 2 coating is unaltered during the electrolysis test, the TiB 2 coating can be used in aluminum electrolysis industry to save energy and prolong the life of aluminum electrolysis cell.
The concept of ambient temperature curable TiB 2 cathode coating was put forward, and the ambient temperature curable TiB 2 cathode coating was prepared successfully. Differing from the previous TiB 2 cathode coating solidified approximately at 200 ℃,the ambient temperature curable TiB 2 cathode coating can be solidified at room temperature, so the heating equipment is not necessary, which simplifies the preparation process and facilitates the industrial application of TiB 2 cathode coating. Many kinds of resin and curing agent were investigated. On the above mentioned basis, the ambient temperature curable TiB 2 cathode coating was prepared with furan resin 5 500 mixed with complex resins B as carbon binder and DXG1 as curing agent in 24 h. The results show that the properties of prepared coating are excellent, the electrical resistivity is 29.8 μΩ·m, the compressive strength is 33.6 MPa, which are all better than the relevant properties of partially graphitized cathode carbon block for aluminum electrolysis prescribed by the GB 8744 88. SEM morphologies show that the section morphology of the TiB 2 coating is unaltered during the electrolysis test, the TiB 2 coating can be used in aluminum electrolysis industry to save energy and prolong the life of aluminum electrolysis cell.
出处
《中国有色金属学会会刊：英文版》
CSCD
2003年第3期704-707,共4页
Transactions of Nonferrous Metals Society of China
基金
Project (G19990 64 90 3)supportedbytheNationalKeyFundamentalResearchandDevelopmentProgramofChina
关键词
炼铝
电解
环境温度
二硼化钛
阴极涂层
ambient temperature solidification
TiB 2 cathode coating
aluminum electrolysis
