Shape memory polymer composite body with spatially-expanded three-wing beam and its preparation method

A memory polymer and spatial unfolding technology, applied in chemical instruments and methods, synthetic resin layered products, lamination, etc., can solve problems such as unstable control of the unfolding stretching process, complicated unfolding mechanics, and complicated manufacturing processes, etc., to achieve Effect of high specific strength, light material weight and high specific modulus

Inactive Publication Date: 2007-10-17
HARBIN INST OF TECH
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Problems solved by technology

[0003] In order to solve the problems of heavy material weight, complex deployment mechanism, unstable control of the expansion and expansion process and complex manufacturing process of the existing space expansion beam, the present invention provides a shape memory polymer composite of space expansion three-wing beam. Body and its preparation method

Method used

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  • Shape memory polymer composite body with spatially-expanded three-wing beam and its preparation method
  • Shape memory polymer composite body with spatially-expanded three-wing beam and its preparation method
  • Shape memory polymer composite body with spatially-expanded three-wing beam and its preparation method

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specific Embodiment approach 1

[0016] Specific Embodiment 1: The present embodiment will be specifically described below in conjunction with FIG. 1 and FIG. 2. This embodiment consists of a shape-memory polymer composite material layer 1 and an alloy material layer 2. The shape of the shape-memory polymer composite material layer 1 In a superimposed shape, a resistance wire mesh 3 is laid inside the shape memory polymer composite material layer 1 , and an alloy material layer 2 is connected to the inner side of the curved part of the shape memory polymer composite material layer 1 . The contraction process of the shape memory polymer composite of a complete space expansion three-wing spar: the alloy material layer in the shape memory polymer composite is connected to the stringer 4, and the built-in resistance wire mesh is connected to the shape memory polymer composite material layer Electricity makes the structure reach the shape transition temperature of the shape memory polymer composite material, at thi...

specific Embodiment approach 2

[0017] Embodiment 2: The present embodiment will be described in detail below. The shape memory polymer composite material layer 1 in this embodiment is composed of a shape memory polymer material layer and a fiber reinforced material layer; the shape memory polymer material layer is in The weight percentage content in the shape memory polymer composite material layer 1 is 40-99%, the weight percentage content of the fiber reinforced material layer in the shape memory polymer composite material layer 1 is 1-60%, other compositions and connections The relationship is the same as that of the specific embodiment one.

specific Embodiment approach 3

[0018] Specific Embodiment Three: The present embodiment will be specifically described below. The shape memory polymer material described in this embodiment is shape memory polyurethane resin, polyurethane shape memory polymer, isocyanate shape memory polymer, styrene shape memory polymer material, epoxy-based thermoplastic shape memory polymer or thermosetting shape memory polymer, and other compositions and connections are the same as those in Embodiment 2.

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Abstract

A space expanded three-wing-beam shaped remember polymer compound and the preparation thereof relates to a space expanded three-wing-beam shaped remember polymer and the preparation thereof, and to solve the problems of large material weight, complicated expanded mechanical performance, unsteady controlling of the expanding-telescoping procedure, and complicated fabrication technology in the existing space expanded beam structure design procedure. The compound material layer of the shaped remember polymer compound is shaped as superposition and the electric resistance silk screen is located therein. The inner of the compound material layer bending part of the shaped remember polymer compound is connected with a yalloy material layer, the preparation of which comprises the steps of: sorting, confect material, curing. The invention has the advantages of: high specific strength, small material weight, strong controlling ability for beam expanding, simple mechanical performance of the space beam expanding. Moreover, the invention has the characteristic of shaped remember and simple technological operation of the preparation.

Description

technical field [0001] The invention relates to a shape-memory polymer composite with three-wing spars unfolded in space and a preparation method thereof. Background technique [0002] The space-deployed three-wing spar of shape-memory polymer composites refers to the supporting structure for equipment used in the space field, such as RF mirrors, radar panels and optical telescopes. Such a beam is not fixed, it is curled and superimposed during the launching process, and occupies a very small space, but it can be stretched and expanded as needed during the space use process; the three-wing beam refers to the entire support beam system. Consists of three sub-beams. The structural design of space-expanded beams mainly includes two aspects. One is the weight design of the overall structure, which mainly depends on the selection of materials; On the other hand, it is the design of the mechanical operation of the deployment. There are two main types. The first is the tubular te...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B7/183B32B27/04B32B27/12B32B3/24B32B37/15B32B38/00
Inventor 冷劲松刘彦菊吕海宝
Owner HARBIN INST OF TECH
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