High-close-packing flexible anti-radiation pseudo-type glass cover plate and preparation method thereof

Abstract

The invention provides a high-close-packing flexible anti-radiation pseudo-type glass cover plate and a preparation method thereof. The preparation method comprises the following steps: (1) uniformly attaching a solar cell array to the surface of a polyimide substrate and fixing the solar cell array; (2) uniformly spraying a silica gel solution on the upper surface of the horizontally placed battery array sheet; (3) horizontally standing, and removing volatile matters under reduced pressure; (4) uniformly spraying the cerium-doped glass bead dry powder with different sizes on the surface of the battery array attached with the silica gel; (5) redundant glass beads on the surface are purged; (6) horizontally standing the cell array, and removing volatile matters under reduced pressure; (7) uniformly spraying a silica gel solution on the upper surface of the horizontally placed cell array; (8) repeating the steps (3)-(7) according to performance requirements; and (9) horizontally placing, so that the battery, the colloid and the microbeads are fully compounded and completely crosslinked. The cerium-doped glass is made into the cerium-doped glass beads, the cerium-doped glass beads and the cover plate glue are mixed to form a film to prepare the pseudo-type glass cover plate, and the pseudo-type glass cover plate covers the cell panel, so that the process complexity is reduced, and the cost is reduced.

Description

technical field [0001] The invention provides a high-density-packed flexible anti-radiation pseudo-type glass cover sheet and a preparation method thereof, belonging to the technical field of materials. Background technique [0002] With the development of commercial aerospace, the demand for low-orbit high-power communication satellites has greatly increased. The energy required by the satellite spacecraft is converted from sunlight, and the converted "fuel tank" is a solar panel composed of solar cells. Flexible solar wings meet the needs of high-power and light-weight spacecraft, and are a key area of ​​space energy research. The traditional rigid glass cover sheet for encapsulating space solar cells cannot meet the mechanical performance requirements of flexible solar wings. Therefore, it is urgent to find an alternative packaging material with spectral transmission similar to that of the glass cover sheet and adaptable to the space environment. [0003] The harsh spac...

AI Technical Summary

Problems solved by technology

The bead glue blend solution is very viscous and cannot be smoothly scraped on the substrate; when referring to the microscope, the distribution of the microbeads is relatively scattered and cannot be completely densely packed. This is the protection of solar cells. The performance will be greatly reduced, so it can only slow down the aging of solar cells to a certain extent, and cannot achieve the best effect

[0006] 2. The viscosity of the mixture is high in the scraping process, and the optimal operation time of the blended colloid scraping film is short. During the bead glue blending, defoaming, standing and preparation process, the viscosity of the system gradually increases, which is not conducive to the uniformity of scraping film formation

In addition, at the same time, due to the gradual condensation and solidification of the blend system, the operation time is short, and continuous preparation of large areas cannot be realized.

[0007] 3. The tape casting or scraping method can only be used to prepare the scraping film on the surface with a high flatness of the substrate, which has high requirements on the surface structure of the substrate. The unevenness of the substrate will seriously affect the uniformity and integrity of the film formation, and then affect the overall Radiation resistance

[0008] 4. After industrial scale-up, the uniformity is unstable, and continuous preparation operations cannot be performed

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