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Shape memory composite material and preparation method thereof

A composite material and memory technology, applied in the field of shape memory materials and their preparation, to achieve the effects of excellent structural properties, excellent designability, and improved load capacity

Inactive Publication Date: 2010-07-07
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of poor mechanical properties and environmental resistance and small load bearing of thermoplastic shape memory polymers as large-scale space devices, structures or components. defect, and provided shape memory composite material and preparation method thereof

Method used

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  • Shape memory composite material and preparation method thereof

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Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0018] Specific Embodiment 1: The shape memory composite material of this embodiment is made of 60-85 parts by mass of thermosetting resin and 15-40 parts of fiber material; Parts of p-diamino-diphenyl-methane and 100 parts of epoxy resin E-51.

specific Embodiment approach 2

[0019] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is: the shape memory composite material also includes 1 to 6 parts of reinforcing agent in terms of parts by mass, and the reinforcing agent is nano-SiO 2 , nano-montmorillonite or polyhedral oligosilsesquioxane. Others are the same as the first embodiment.

specific Embodiment approach 3

[0020] Embodiment 3: The difference between this embodiment and Embodiment 1 is that the fiber material is carbon fiber, aramid fiber or polybenzobisoxazole fiber (PBO fiber). Others are the same as the first embodiment.

[0021] The fibers of the fiber material of this embodiment may be woven fabrics, unidirectional long fibers, or chopped fibers.

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Abstract

Provided is a shape memory composite material and a method for preparing the same, and solves the defect of bad mechanical performance and environmental resistant performance, little bearing load of the present thermoplastic shape memory polymer as large-scale space device, structure or component. The shape memory composite material comprises shape memory thermosetting resin and fiber material and the method for preparation is as follows, first, the thermosetting resin is prepared; second, the fiber material is coated; third, the resin is solidified and shaped. The shape memory composite material of the invention has excellent mechanical performance and environmental resistant performance, which makes the bearing load at 50-60g and shape restoring rate more than 94.5% over 100DEG C.

Description

technical field [0001] The invention relates to a shape memory material and a preparation method thereof. Background technique [0002] With the continuous in-depth research on the utilization of space resources by human beings, larger space devices or structures are required. For example, near-term and future spacecraft will use large structures and components (space science observatories, antennas, solar arrays, etc.). However, it is difficult to carry these large space devices and structures directly, so these devices, structures and components need to be made of materials that are lightweight, foldable and packaged, and can be deployed on space orbits. [0003] At present, space research mainly uses thermoplastic shape memory polymers as large-scale space devices, structures or components, but thermoplastic shape memory polymers have the disadvantages of poor mechanical properties and environmental resistance, and low load bearing. Contents of the invention [000...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L63/00C08K5/18D06M15/55C08K3/36C08L83/04
Inventor 刘宇艳万志敏谭惠丰杜星文
Owner HARBIN INST OF TECH
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