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Viscoelastic damping material and embedded co-curing damping composite material manufacturing technology

A damping material and viscoelastic technology, applied in the field of composite material dynamic modification process research, can solve the problems of strength and interlayer bonding performance decline, embedded co-curing damping composite material structural failure, etc., to achieve shear performance improvement, The effect of good temperature resistance

Active Publication Date: 2014-08-27
QINGDAO TECHNOLOGICAL UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the high temperature resistance of this material affects its application range as an important consideration index. At present, the embedded co-cured damping composite material with the highest curing temperature (180°C) can be used at a temperature of up to 150°C. At higher ambient temperatures, The damping material will age rapidly, resulting in a rapid decline in strength and interlayer bonding properties, resulting in failure of the embedded co-cured damping composite structure

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  • Viscoelastic damping material and embedded co-curing damping composite material manufacturing technology
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  • Viscoelastic damping material and embedded co-curing damping composite material manufacturing technology

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Embodiment Construction

[0031] The present invention will be further described below in conjunction with drawings and embodiments.

[0032] In the present invention, the rubber that can be vulcanized at high temperature is obtained by adjusting the components of the damping material, and the vulcanization curve is kept as consistent as possible with the curing curve of the carbon fiber prepreg, that is, the vulcanization temperature and vulcanization time of the fluororubber are the same as those of the corresponding composite material. The curing temperature and time of the prepreg are consistent. The interpenetrating network structure is formed through molecular bonds, so that the layers have better strength and temperature resistance. The composition of the final fluororubber obtained through the orthogonal test is shown in Table 1, so that the embedded co-cured composite structure truly has the characteristics of high damping and high temperature resistance.

[0033] Table 1 Viscoelastic materia...

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Abstract

The invention discloses a viscoelastic damping material. The viscoelastic damping material comprises, by mass, 100 parts of fluororubber, 30 parts of carbon black, 14 parts of triallyl isocyanurate, 3.8 parts of 2,5-dimethyl-2,5-di(tert-butylperoxy)hexane and 1.5 parts of N,N'-m-phenylene dimaleimide. The invention also discloses an embedded co-curing damping composite material manufacturing technology utilizing the viscoelastic damping material. The embedded co-curing damping composite material manufacturing technology comprises damping material virgin rubber manufacture, viscoelastic damping film manufacture, and paved layer and member manufacture. The embedded co-curing damping composite material obtained by the manufacturing technology can resist a high temperature and keep high damping at a normal temperature.

Description

technical field [0001] The invention belongs to the field of composite material dynamic modification technology research, in particular to a viscoelastic damping material and an embedded co-curing damping composite material manufacturing process. Background technique [0002] At present, the embedded co-cured composite material damping structure is a multi-phase solid compounded by using the designability of the mechanical properties of the composite material to combine three materials with different properties through physical or chemical methods through artificial or modern technology. From the analysis of its composition and structure, one of the phases is basically continuous in the layer called the matrix phase such as resin, while the other phase is dispersed in the matrix and contained by the matrix is ​​called the reinforcing phase such as carbon fiber. One phase is isotropic viscoelastic damping material. Its matrix phase, reinforcement phase and viscoelastic dampi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/12C08K3/04C08K5/3492C08K5/3415B29C70/44
Inventor 梁森张乾李雪
Owner QINGDAO TECHNOLOGICAL UNIVERSITY
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