A cyanate-based anti-radiation reinforced conformal coating and preparation method thereof

A radiation-resistant reinforcement and conformal coating technology, which is applied in coatings, electrical solid devices, semiconductor/solid device components, etc., can solve the problems of poor film adhesion and low protective performance, and achieve high-efficiency absorption , the effect of improving the interface bonding strength and good bonding performance

Active Publication Date: 2021-10-01
HARBIN INST OF TECH
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Problems solved by technology

[0004] The purpose of the present invention is to provide a cyanate-based anti-radiation reinforced conformal coating and a preparation method thereof in order to solve the technical problems of low protective performance and poor bonding force of the existing radiation shielding materials

Method used

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Effect test

specific Embodiment approach 1

[0036] Embodiment 1: A cyanate-based anti-radiation reinforced conformal coating in this embodiment is composed of a rare earth resin film layer and a metal oxide film layer deposited on the outer surface of the rare earth resin film layer by atomic layer, and the rare earth The resin film layer is formed by mixing and melting coating of rare earth fine powder, cyanate resin, accelerator, coupling agent and polyetherimide, the metal oxide of the metal oxide film layer is hafnium oxide, and the rare earth resin The thickness of the film layer is 120 μm, the thickness of the hafnium oxide film layer is 45 nm, the rare earth fine powder is gadolinium, the particle size of the rare earth fine powder is 500 mesh, the accelerator is aluminum acetylacetonate, and the coupling agent is γ-ammonia Propyltriethoxysilane (i.e. KH-550), the mass ratio of the cyanate resin to the rare earth micropowder is 5:1, and the mass ratio of the cyanate resin to aluminum acetylacetonate is 15:1, so T...

specific Embodiment approach 2

[0041] Embodiment 2: This embodiment is different from Embodiment 1 in that: the thickness of the rare earth resin film layer is 80 μm, and the thickness of the metal oxide film layer is 30 nm. Other steps and parameters are the same as those in the first embodiment.

specific Embodiment approach 3

[0042] Embodiment 3: This embodiment is different from Embodiment 1 in that: the thickness of the rare earth resin film layer is 150 μm, and the thickness of the metal oxide film layer is 60 nm. Other steps and parameters are the same as those in the first embodiment.

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Abstract

A cyanate-based anti-radiation reinforced conformal coating and a preparation method thereof. The invention belongs to the field of radiation shielding materials and their preparation. The purpose of the invention is to solve the technical problems of low protective performance and poor bonding force of film layers in the existing radiation shielding materials. A cyanate-based radiation-resistant and reinforced conformal coating of the present invention is composed of a rare earth resin film layer and a metal oxide film deposited on the outer surface of the rare earth resin film layer by atomic layer, and the rare earth resin film layer is composed of rare earth fine powder, Cyanate resin, accelerator, coupling agent and polyetherimide are mixed and melt-coated. Preparation method: 1. Mix and melt cyanate ester resin, accelerator, coupling agent, polyetherimide and rare earth micropowder on the surface of the shell of electronic components, and solidify in stages to obtain a rare earth resin film layer; 2. The conformal coating is obtained by periodically depositing and growing metal oxides on the surface of the rare earth resin film layer. The conformal coating of the invention has a radiation shielding rate as high as 88.5% under electron irradiation with a simulated dose of 100-200kGy.

Description

technical field [0001] The invention belongs to the field of radiation shielding materials and preparation thereof, in particular to a cyanate-based anti-radiation reinforced conformal coating and a preparation method thereof. Background technique [0002] The environmental conditions of spacecraft flying in outer space are very harsh. Since there are many high-energy particles in the space environment where the spacecraft is located, integrated circuits will be affected by the radiation of these particles and cause performance degradation. As the radiation dose increases, there will be a total dose effect, which will further affect the performance of the integrated circuit, causing the spacecraft to malfunction or shorten its service life. In order to reduce the harm caused by space radiation, it is necessary to adopt a special anti-radiation reinforcement treatment process to ensure the reliability of the spacecraft in orbit. [0003] Conformal coatings are specialty poly...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G21F1/12G21F1/10H01L23/552C09D179/04C09D7/65C09D7/61C09D7/63
CPCC08K2201/005C08L2205/02C08L2205/04C09D179/04C09D7/61C09D7/63C09D7/65G21F1/106G21F1/125H01L23/552C08L79/08C08K3/08C08K5/07C08K5/544
Inventor 李杨卢松涛崔凯洪杨吴晓宏秦伟
Owner HARBIN INST OF TECH
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