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Research on the Manufacture and Performance of Light Curing Material Applied to Self Repair of Intelligent Composite Materials

Author: HongXiaoQin
Tutor: ZhaoZhiMin
School: Nanjing University of Aeronautics and Astronautics
Course: Optical Engineering
Keywords: light curing material intelligent composite material composite material self repair viscosity curing
CLC: TB381
Type: Master's thesis
Year: 2009
Downloads: 178
Quote: 1
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Abstract


Composite materials are composed of matrix material and reinforcement material. The two kinds of combined components can learn from one’s strong points to offset another’s weakness on the performance, which makes the general performances of the composite materials more excellent than that of the originally combined materials. So the different composite materials can satisfy different kinds of applied requirements. At present, because of the advantages of light weight, high intensity, convenient process of molding, good elasticity, chemical cautery resistance, climate resistance and so on, the composite materials are widely used in the fields of aeronautics and astronautics, auto, electron, architecture, equipments of body mechanics, and especially in the fields of aeronautics and astronautics. An intelligent composite material is a kind of advance material with the intelligent characteristic and the character of composite materials. Combined with light curing technology, a new method and thought used in the self repair of the intelligent composite materials was put forward. The light curing material and the fiber are embedded in the composite materials used in the field of aeronautics, which constituted the intelligent composite material. The fiber, as sense organ, can reflect the change of the outside stress. When the intelligent composite material was pressed heavily and the crack appeared inside, the light curing material infiltrated through the interstice and cured. Accordingly, the self repair of the intelligent composite material came true. The idea that the light curing material is used as the repairing liquid for the self repair of intelligent composite material is one of the innovative points. Whether the interstice self repair of the intelligent composite material can come true, it depends on the performance of the light curing material to a great extent. Therefore, the contents as follow are mostly researched.1) Manufacture of the light curing material. The constituent components of the light curing material and the proportion of the each component have great effect on the performance of the light curing material.2) Performance research of the light curing material. First, it requires that the viscosity is lower and better. When there are cracks inside the composite material, the interior light curing material can infiltrate through the cracks because of the low viscosity. Second, it requires that the light curing material can cure quickly in the radiation of curing lamp. Consequently, it ensures the crack repairing of the intelligent composite material. Third, the largest curing depths, rigidity after curing and felted force with the composite material are all the considerable problems.3) Applied research of the light curing material. The light curing material that we processed is applied to the system of composite material used in the field of aeronautics, so we can validate the cracks repairing of composite material. It mostly researched on the way of embedding in the composite material, the way of repairing and the effect after repairing.The fruits in the paper have provided a new method and thought based on light curing technology for the self repair of the intelligent composite material, and also have provided valuable reference for the deep research on the repairing technology of optical intelligent structure.

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