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Cyanate ester-based radiation-resistant 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 bonding and low protective performance, and achieve high-efficiency absorption , Improve the interface bonding strength, the effect of wide application prospects

Active Publication Date: 2021-03-16
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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

The invention discloses a cyanate ester-based radiation-resistant reinforced conformal coating and a preparation method thereof. The invention belongs to the field of irradiation shielding materials and preparation thereof. The invention aims to solve the technical problems of low protection performance and poor film bonding force of the existing irradiation shielding material. The cyanate ester-based radiation-resistant reinforced conformal coating is composed of a rare earth resin film layer and a metal oxide film arranged on the outer surface of the rare earth resin film layer through atomic layer deposition. The rare earth resin film layer is formed from rare earth micro-powder, cyanate ester resin, an accelerant, a coupling agent and polyetherimide through mixing, melting and coating.The preparation method comprises the steps that firstly, cyanate ester resin, an accelerant, a coupling agent, polyetherimide and rare earth micro-powder are mixed and melted and coat the surface ofa tube shell of an electronic component, and segmented curing is performed to obtain a rare earth resin film layer; and secondly, a metal oxide is periodically deposited and grown on the surface of the rare earth resin film layer to obtain the conformal coating. The radiation shielding rate of the conformal coating is as high as 88.5% under electron irradiation with the simulated dose of 100-200 kGy.

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 Applications(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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