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Particular-filling shape memory composite material and its production

A technology of composite materials and memory polymers, which is applied in the field of shape memory composite materials and its preparation, can solve problems such as poor shape retention, small deformation recovery force, and poor mechanical properties, and achieve strong shape retention, large recovery strain, and The effect of large elastic modulus

Inactive Publication Date: 2007-09-05
冷劲松
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problems of poor mechanical properties, small deformation recovery force, poor shape retention ability and non-conductivity of current shape memory polymer materials, and provide a particle-filled shape memory composite material and its preparation method

Method used

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Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0009] Embodiment 1: The particle-filled shape-memory composite material of this embodiment is composed of a shape-memory polymer matrix phase material and a particle-filled phase material; the percentage of the shape-memory polymer matrix phase material to the total mass of the particle-filled shape-memory composite material is 30% ~99.5%, the rest is the particle filling phase material.

[0010] The recoverable strain of the particle-filled shape memory composite material in this embodiment is 20-100%, the elastic modulus is 0.2-3.5GPa, the output external force during deformation recovery is 0.1-2MPa, the long-term storage deformation is 0.1-1%, and the motion stability is good.

specific Embodiment approach 2

[0011] Embodiment 2: In this embodiment, the shape-memory polymer matrix phase material accounts for 45-95% of the total mass of the particle-filled shape-memory composite material, and the rest is particle-filled phase material. Others are the same as in the first embodiment.

[0012] The recoverable strain of the particle-filled shape memory composite material in this embodiment is 30-97%, the elastic modulus is 0.4-3.2GPa, the output external force during deformation recovery is 0.5-2MPa, the long-term storage deformation is 0.2-0.95%, and the motion stability is good.

specific Embodiment approach 3

[0013] Embodiment 3: In this embodiment, the shape-memory polymer matrix phase material accounts for 55-90% of the total mass of the particle-filled shape-memory composite material, and the rest is particle-filled phase material. Others are the same as in the first embodiment.

[0014] The recoverable strain of the particle-filled shape memory composite material in this embodiment is 50-95%, the elastic modulus is 0.6-2.8GPa, the output external force during deformation recovery is 1.0-2MPa, the long-term storage deformation is 0.3-0.9%, and the motion stability is good.

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Abstract

A granular filling shape memory composite material and its production are disclosed. The composite material consists of shape memory polymer matrix-phase material 30-99.5wt% and granular filling-phase material residues. The process is carried out by mixing, dispersing and cast curing. Its advantages include excellent reverse compliance, elastic modulus, outputting force, motion stability and conductivity.

Description

technical field [0001] The invention relates to a shape memory composite material and a preparation method thereof. Background technique [0002] Intelligent materials and structures are an emerging multidisciplinary comprehensive science, covering materials, mechanics, mechanics, electronics, control, electromagnetics and other disciplines, and are at the forefront of the development of current engineering disciplines. In the past few decades, smart materials have been widely used in fields such as aviation, spaceflight, shipbuilding and construction. Smart materials are developing at an unprecedented speed in bionics, sensors, actuators, etc. Among them, shape memory polymers are being used more and more widely because of their excellent comprehensive properties. [0003] Shape memory polymer materials generally have a two-phase structure: one phase is a stationary phase of the shape of the shape memory material, and the other phase is a reversible phase. The stationary ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L25/04C08L25/10C08L63/00C08L47/00C08K3/04B29C61/06
Inventor 冷劲松刘彦菊兰鑫
Owner 冷劲松
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