Ceramic precursor slurry applicable to winding process and preparation method of ceramic precursor slurry
A technology of ceramic precursor and winding process, which is applied in the field of ceramic precursor, can solve the problems of low viscosity of precursor resin, low ceramic yield, and easy cracking of cured products, and achieve low cost, high ceramic yield and moderate viscosity. Effect
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Embodiment 1
[0032] A kind of winding process is suitable for the preparation steps of ceramic precursor slurry as follows:
[0033] (1) According to the mass ratio, weigh 100 parts of vinyl polysilazane resin in the barrel, add 2 parts of dicumyl peroxide under constant stirring, and obtain a homogeneous transparent solution after stirring for 30 minutes;
[0034] (2) According to the mass ratio, weigh 10 parts of fumed silica, add it to the transparent solution of step (1), stir until a uniform liquid is obtained, then add 50 parts of silicon dioxide powder, 50 parts of silicon carbide powder and 10 parts of chromium silicide are ground, dispersed and stirred to obtain a slurry with a certain viscosity; after filtering, the material is discharged and packaged to obtain the target product.
[0035] The viscosity, curing crosslinking temperature, ceramization temperature and ceramic yield of the prepared ceramic precursor slurry are shown in Table 1, respectively. Compared with the cerami...
Embodiment 2
[0038] The preparation steps of a ceramic precursor slurry system suitable for a winding process are as follows:
[0039](1) According to the mass ratio, weigh 100 parts of vinyl polysilazane resin in the barrel, add 1 part of dicumyl peroxide under continuous stirring, and obtain a homogeneous transparent solution after stirring for 30 minutes;
[0040] (2) According to the mass ratio, weigh 20 parts of fumed silica, add it to the transparent solution of step (1), stir until a uniform liquid is obtained, then add 50 parts of silicon dioxide powder, 50 parts of silicon carbide powder and After grinding, dispersing and stirring 15 parts of chromium silicide, a slurry with a certain viscosity is obtained; after filtering, the material is discharged and packaged to obtain the target product. The viscosity, curing crosslinking temperature, ceramization temperature and ceramic yield of the prepared ceramic precursor slurry are shown in Table 1, respectively.
[0041] The ceramic p...
Embodiment 3
[0043] The preparation steps of a ceramic precursor slurry system suitable for a winding process are as follows:
[0044] (1) According to the mass ratio, weigh 100 parts of vinyl polysilazane resin in the barrel, add 1 part of dicumyl peroxide under continuous stirring, and obtain a homogeneous transparent solution after stirring for 30 minutes;
[0045] (2) According to the mass ratio, weigh 20 parts of fumed silicon dioxide, add it to the transparent solution of step (1), stir until a uniform liquid is obtained, then add 60 parts of silicon dioxide powder, 70 parts of silicon carbide powder and After grinding, dispersing and stirring 20 parts of molybdenum silicide, a slurry with a certain viscosity is obtained; after filtering, the material is discharged and packaged to obtain the target product. The viscosity, curing crosslinking temperature, ceramization temperature and ceramic yield of the prepared ceramic precursor slurry are shown in Table 1, respectively.
[0046] T...
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