Polyurethane fiber-reinforced shape memory polymer composite material

A memory polymer and spandex fiber technology, applied in the field of shape memory polymer composite materials, can solve the problem of low recovery strain and achieve the effects of high recoverable strain, long storage time and high strength

Active Publication Date: 2012-06-06
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention is to solve the problem of low recoverable strain of existing shape memory polymer composite materials, and provides spandex fiber reinforced shape memory polymer composite materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0012] Embodiment 1: In this embodiment, the spandex fiber-reinforced shape memory polymer composite material is composed of 35-95 parts by weight of the shape-memory polymer material and 5-65 parts of spandex fiber.

[0013] The spandex fiber in this embodiment may also be a cloth made of spandex fiber.

[0014] The preparation method of the material of the present invention is a conventional preparation method of resin-based composite materials, including: hand lay-up molding, compression molding, winding molding, injection molding, resin transfer molding molding, bag press molding, vacuum bag-autoclave forming, autoclave forming, hydraulic kettle forming, thermal expansion plastic forming, lamination and coil forming, pultrusion, continuous winding, continuous plate making. Due to the diversity of the preparation methods of resin-based composite materials and the irregularity of the process, the three manufacturing methods described in this patent are only specific examples...

specific Embodiment approach 2

[0022] Embodiment 2: This embodiment differs from Embodiment 1 in that the spandex fiber reinforced shape memory polymer composite material is composed of 35-45 parts by weight of shape memory polymer material and 55-65 parts of spandex fiber. Others are the same as the first embodiment.

specific Embodiment approach 3

[0023] Embodiment 3: This embodiment differs from Embodiment 1 in that the spandex fiber-reinforced shape memory polymer composite material is composed of 55-65 parts by weight of shape-memory polymer material and 35-45 parts of spandex fiber. Others are the same as the first embodiment.

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Abstract

The invention discloses a polyurethane fiber-reinforced shape memory polymer composite material, relating to a shape memory polymer composite material, and solving the problem of low recoverable strain of the traditional shape memory polymer composite material. The shape memory polymer composite material contains a shape memory polymer material and polyurethane fibers. The recoverable strain of the polyurethane fiber-reinforced shape memory polymer composite material is greater than 10%, and the polyurethane fiber-reinforced shape memory polymer composite material has large recoverable strain, and can also output large external force when the strain is recovered again.

Description

technical field [0001] The invention relates to a shape memory polymer composite material. Background technique [0002] Composite materials are materials with new properties composed of two or more materials with different properties by physical and chemical methods on a macro scale. Generally, the performance of composite materials is better than that of its component materials, and some properties are not available in the original component materials. Composite materials improve the stiffness, strength, and thermal properties of the component materials. [0003] Composite materials usually consist of a matrix and reinforcements. Various resins or metal and non-metal materials are commonly used as the matrix; various fibers or particles are used as reinforcement materials. Among them, reinforcing materials are mainly used to provide stiffness and strength in composite materials, and basically control their performance. The matrix material plays a cooperative role, which...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08K7/02
Inventor 冷劲松兰鑫刘彦菊潘苏新
Owner HARBIN INST OF TECH
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