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Space-level cyanate resin based on nanoparticle modification, and preparation method thereof

A cyanate ester resin and nanoparticle technology, applied in the field of space-grade cyanate ester resin and its preparation, can solve problems such as the decline of mechanical properties, and achieve the effects of excellent mechanics and excellent dimensional stability.

Active Publication Date: 2020-02-28
SHANGHAI INST OF SATELLITE EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional modification methods include thermoplastic resin toughening modification, thermosetting resin copolymerization modification, rubber elastomer modification, etc. The above modification methods increase the toughness and introduce new chemical components, bringing composite materials in vacuum and cold. A series of problems such as the decline of mechanical properties in space environments such as thermal alternation and comprehensive irradiation

Method used

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  • Space-level cyanate resin based on nanoparticle modification, and preparation method thereof
  • Space-level cyanate resin based on nanoparticle modification, and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0028] This embodiment relates to a space-grade cyanate resin modified by nanoparticles and a preparation method thereof. The matrix resin is a cyanate resin, and the reinforcing material is a cyanate nanoparticle. Concrete preparation comprises the following steps:

[0029] Add 200 g of cyanate monomer into 800 g of xylene solution, and stir mechanically at 80° C. for 2 hours. The cyanate monomer is completely dissolved, and solution A is obtained.

[0030] Add 0.2 g of zinc acetylacetonate and 0.2 g of nonylphenol into solution A respectively, mechanically stir at 90° C. for 2 h, raise the temperature to 120° C. and mechanically stir for 3 h to obtain solution B.

[0031] Place the solution B in a rotary evaporator with a vacuum degree of ≤-0.97MPa, and rotate at 100°C for 2 hours to obtain a solution containing crude cyanate ester nanoparticles.

[0032] The solution containing the crude product of cyanate ester nanoparticles is placed in a centrifuge at a rotational speed...

Embodiment 2

[0037] This embodiment relates to a space-grade cyanate resin modified by nanoparticles and a preparation method thereof. The matrix resin is a cyanate resin, and the reinforcing material is a cyanate nanoparticle. Concrete preparation comprises the following steps:

[0038] Add 100 g of cyanate monomer into 900 g of xylene solution, and mechanically stir at 80° C. for 1 hour to completely dissolve the cyanate monomer to obtain solution A.

[0039] Add 0.2 g of zinc acetylacetonate and 0.2 g of nonylphenol into solution A respectively, mechanically stir at 90° C. for 1.5 h, raise the temperature to 120° C. and mechanically stir for 1 h to obtain solution B.

[0040] The solution B was placed in a rotary evaporator with a vacuum degree of ≤-0.97 MPa, and was rotated at 100° C. for 1.5 h to obtain a solution containing crude cyanate ester nanoparticles.

[0041] The solution containing the crude product of cyanate ester nanoparticles is placed in a centrifuge at a rotational sp...

Embodiment 3

[0046] This embodiment relates to a space-grade cyanate resin modified by nanoparticles and a preparation method thereof. The matrix resin is a cyanate resin, and the reinforcing material is a cyanate nanoparticle. Concrete preparation comprises the following steps:

[0047] Add 150 g of cyanate monomer into 850 g of xylene solution, and stir mechanically at 80° C. for 3 hours to completely dissolve the cyanate monomer to obtain solution A.

[0048] Add 0.25g of zinc acetylacetonate and 0.25g of nonylphenol into solution A respectively, mechanically stir at 90°C for 1 hour, raise the temperature to 120°C and stir mechanically for 2 hours to obtain solution B.

[0049] The solution B was placed in a rotary evaporator with a vacuum degree of ≤-0.97MPa, and was rotated at 100° C. for 1 hour to obtain a solution containing crude cyanate ester nanoparticles.

[0050] The solution containing the crude product of cyanate ester nanoparticles was placed in a centrifuge at a speed of 6...

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Abstract

The invention relates to a space-level cyanate resin based on nanoparticle modification, and a preparation method thereof, wherein the modified cyanate resin comprises, by weight, 70-90 parts of a matrix cyanate resin and 30-10 parts of cyanate nanoparticles, and the preparation method of the cyanate nanoparticles comprises: adding a cyanate monomer into a xylene solution, completely dissolving, adding catalysts zinc acetylacetonate and nonylphenol, heating, stirring, carrying out rotary evaporation, centrifuging, washing, and drying to obtain the cyanate nanoparticles. According to the invention, the modified cyanate resin has excellent mechanical property, excellent thermal property, excellent dielectric property and space environment size stability.

Description

technical field [0001] The invention relates to a space-grade cyanate resin modified by nanoparticles and a preparation method thereof, in particular to a space-grade cyanate resin modified by nanoparticles and a preparation method thereof for satellite carbon fiber composite structural parts. Background technique [0002] With the increasing application of satellites in economics, meteorology, and military affairs, satellites are developing toward high spatial resolution, high time resolution, high positioning accuracy, and high timing accuracy. Weight and volume are increasing. These put forward higher requirements for the space stability, reliability and light weight of the satellite platform structure. [0003] At present, epoxy resin-based composite materials (T700 / M40 / M55J, etc.) are mostly used for spaceborne antennas and optical cameras on domestic spacecraft. However, due to the hygroscopic properties of resin-based composite materials, under the action of moistur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L79/04
CPCC08L79/04C08L2205/025
Inventor 程涛夏振涛李鹏范琳孟凡苹李瑶瑶朱文凯范嵘
Owner SHANGHAI INST OF SATELLITE EQUIP
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