Carbon fiber composite material laminated plate with piezoelectric damping and preparation method thereof
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A composite material layer and composite material technology, applied in the field of carbon fiber composite material laminates and their preparation, can solve the problems of complex polarization process, poor practical applicability, etc. Effect
Inactive Publication Date: 2012-10-03
HARBIN INST OF TECH
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[0005] The purpose of the present invention is to provide a carbon fiber composite laminate with piezoelectric damping and its preparation method in order to solve the problems of complex polarization process and poor practical applicability in the prior art
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specific Embodiment approach 1
[0016] Embodiment 1: A carbon fiber composite laminate with piezoelectric damping in this embodiment is composed of 3~6 parts by weight of piezoelectric ceramics, 100 parts of bismaleimide resin, 100~200 parts Carbon fiber, 0.04~0.08 parts of carbon nanotubes, 20~60 parts of active diluent.
[0017] In this embodiment, a carbon fiber-reinforced bismaleimide resin-based high-performance composite material laminate with excellent piezoelectric damping performance is prepared by adding piezoelectric ceramic powder and carbon nanotubes between layers of carbon fiber prepreg.
[0018] The unique performance of this composite material comes from: First, the piezoelectric ceramic powder, carbon nanotubes and carbon fibers added between the layers form a connected network by utilizing the electrical conductivity of the carbon fiber, and the piezoelectric ceramic particles can be placed in a timely manner. The electrical energy generated in the mechanical vibration is converted into he...
specific Embodiment approach 2
[0022] Embodiment 2: This embodiment differs from Embodiment 1 in that the carbon fiber is T300 carbon fiber, T700 carbon fiber, T800 carbon fiber, T1000 carbon fiber, M35 carbon fiber, M40 carbon fiber, M46 carbon fiber, M50 carbon fiber or M60 carbon fiber. Others are the same as in the first embodiment.
specific Embodiment approach 3
[0023] Specific embodiment 3: The difference between this embodiment and specific embodiments 1 to 2 is that the piezoelectric ceramics are barium titanate, lead titanate, lead zirconate titanate, lead magnesium niobate, potassium sodium metaniobate or Pb (Ni 1／3 Nb 2／3 )O 3 -PbZrO 3 -PbTiO 3 . Others are the same as the specific embodiment 1 to 2.
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Abstract
The invention provides a carbon fiber composite material laminated plate with piezoelectric damping and a preparation method thereof, and relates to a carbon fiber composite material laminated plate and a preparation method thereof. The invention aims to solve the problems that a polarization process is complex and a practical application is bad in the prior art. The carbon fiber composite material laminated plate comprises piezoelectric ceramic powder, carbon nano-tube and bismaleimide carbon fiber prepreg. The preparation method comprises the following steps of: preparing bismaleimide resin solution into the carbon fiber prepreg; grinding the polarized piezoelectric ceramic into the piezoelectric ceramic powder, and mixing the piezoelectric ceramic powder with the bismaleimide resin solution and the acidized carbon nano-tube so as to obtain pre-mixing sizing material after ultrasound; and laying the carbon fiber prepreg in a mold, painting the pre-mixing sizing material on the carbon fiber prepreg, and placing the carbon fiber prepreg into a hot press for processing so as to obtain the product. The damping los factor Delta tan sigma of the carbon fiber composite material laminated plate is more than or equal to 0.016 under a normal temperature, and the interlayer strength is improved by 3%-7%. The carbon fiber composite material laminated plate is applied to fields of aerospace crafts, naval vessels which have special usage requirements on material mechanical property and vibration and noise reduction.
Description
technical field [0001] The invention relates to a carbon fiber composite material laminated plate and a preparation method thereof. Background technique [0002] Damping material is a functional material that can absorb vibration mechanical energy and convert it into other forms of energy. Carbon fiber laminates are widely used as advanced materials for structural weight reduction and vibration reduction due to their good mechanical properties and high damping characteristics of viscoelastic resin matrix. Bismaleimide-based carbon fiber composites have been widely used in the aerospace field because of their good mechanical properties and high temperature resistance. However, the dynamic mechanical properties of ordinary carbon fiber laminates are uncontrollable, the volume content of the resin matrix is limited, and the damping performance of the resin matrix is greatly affected by temperature and frequency. Meet the technical requirements for vibration and noise redu...
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