Full-carbon fiber composite material reflecting mirror substrate and preparation method thereof

Abstract

The invention discloses a full-carbon fiber composite material reflecting mirror substrate and a preparation method thereof. The full-carbon fiber composite material reflecting mirror substrate comprises a first panel, a first adhesive film, a honeycomb core, a second adhesive film and a second panel, wherein the first panel is adhered to one side of the first adhesive film; the second panel is adhered to one side of the second adhesive film; and the other side of the first adhesive film and the other side of the second adhesive film are adhered to two sides of the honeycomb core. By designing the first panel, the honeycomb core and the second panel, properties of a carbon fiber composite material are effectively utilized and the problems of a traditional reflecting mirror that the weight is great, the coefficient of thermal expansion is high and the thermal performance is not matched are solved; and layering angles and sequences of the honeycomb core are designed so that the specific modulus of the reflecting mirror is improved and the defect that the honeycomb vertical performances of the traditional reflecting mirror are poor is overcome.

Description

technical field [0001] The invention relates to an all-carbon fiber composite reflector base and a preparation method thereof, especially suitable for optical imaging large-diameter reflectors that require high dimensional stability, and belongs to the technical field of optical imaging reflectors. Background technique [0002] The improvement of the resolution of the space optical remote sensor depends to a certain extent on the size of the aperture of the optical imaging system. The larger the aperture, the higher the resolution of the system; therefore, the development of large-aperture mirrors is particularly important. The material requirements for space optical mirrors are: small thermal expansion coefficient, low density, and high specific modulus. The existing glass-ceramic mirrors and ultra-low expansion glass mirrors are difficult to process into large Aperture mirrors, and carbon fiber composite materials have the characteristics of small thermal expansion coeffic...

AI Technical Summary

Problems solved by technology

[0008] The technical problem solved by the present invention is: to overcome the deficiencies of the prior art, the present invention provides a full carbon fiber composite reflector base and its preparation method, by designing the first panel, the honeycomb core and the second panel, the carbon fiber The characteristics of composite materials solve the problems of traditional reflectors with heavy weight, high thermal expansion coefficient and thermal performance mismatch; by designing the layering angle and sequence of the honeycomb core, the specific modulus of the reflector substrate is improved, and the reflector’s performance is improved. Dimensional stability makes up for the defect of poor longitudinal performance of traditional reflector honeycomb

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