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Preparation method of an optically transparent electrically driven shape memory polymer film

A memory polymer, optically transparent technology, applied in the field of preparation of shape memory polymer films, can solve the problems of narrow application range of shape memory polyimide, low light transmittance of shape memory polyimide, etc.

Active Publication Date: 2021-06-08
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In order to solve the problem that the existing shape-memory polyimide can only be driven by direct heating, which leads to a narrow application range of the shape-memory polyimide, and the transparency of the existing shape-memory polyimide To solve the problem of low optical efficiency, a method for preparing an optically transparent electro-actuated shape memory polymer film is proposed

Method used

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  • Preparation method of an optically transparent electrically driven shape memory polymer film
  • Preparation method of an optically transparent electrically driven shape memory polymer film
  • Preparation method of an optically transparent electrically driven shape memory polymer film

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specific Embodiment approach 1

[0036] Embodiment 1: The preparation method of the optically transparent electro-driven shape memory polymer film of the present embodiment is carried out according to the following steps:

[0037] 1. Drop-coating the transparent conductive coating solution on the supporting substrate, and sintering at 80-100 °C for 10-60 min to obtain a supporting substrate with a transparent conductive coating;

[0038] The sheet resistance of the transparent conductive coating is 1-50Ω / sq;

[0039] 2. Coating the precursor solution of shape memory polyimide on the upper surface of the transparent conductive coating, and then placing the support substrate in a vacuum drying oven for constant temperature treatment;

[0040] The preparation method of the precursor solution of the shape memory polyimide is carried out according to the following steps: 1,3-bis(3-aminophenoxy)benzene and 4,4'-bis(4-aminophenoxy) Biphenyl is added to the aprotic polar solvent, stirred for 20-30 min under nitrogen...

specific Embodiment approach 2

[0052] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the transparent conductive coating solution in step 1 is a mixture of one or more of silver nanowire conductive solution, carbon nanotube conductive solution, and transparent conductive ink liquid. Other steps and parameters are the same as in the first embodiment.

specific Embodiment approach 3

[0053] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the material of the support substrate in step 1 is glass or polyethylene terephthalate. Other steps and parameters are the same as in the first or second embodiment.

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Abstract

The invention discloses a preparation method of an optically transparent electro-driven shape memory polymer film, and relates to a preparation method of a shape memory polymer film. The present invention aims to solve the problem that the existing shape memory polyimide can only be driven by direct heating and the problem of low light transmittance. Method: 1. Drop-coating the transparent conductive coating solution on the support substrate to obtain a support substrate with a transparent conductive coating; 2. Coating the precursor solution of shape memory polyimide on the upper surface of the transparent conductive coating; 3. 1. Perform thermal imidization on the precursor solution; 4. Demoulding and drying. The optically transparent electrically driven shape memory polymer film prepared by the invention has high light transmittance and high mechanical properties, and is non-contact electrically driven. The invention is suitable for preparing an optically transparent electro-driven shape memory polymer film.

Description

technical field [0001] The invention relates to a preparation method of a shape memory polymer film. Background technique [0002] Shape memory polymer (Shape Memory Polymer) is a new type of functional polymer material. When these materials are stimulated by temperature, light, electricity, solvent, magnetism, etc. shape. Shape memory polymers not only have the advantages of large deformation, easy shaping, and easy adjustment of shape response temperature, but also have the advantages of heat preservation, good insulation performance, no rust, easy coloring, printability, light weight and low price, and are widely used in aerospace, information, medical , flexible electronics (Flexible electronics), optoelectronic products and other fields have broad application prospects. [0003] The shape memory polyimide prepared by the existing method has the problems of deep color and low light transmittance; [0004] The reason for the dark color of the shape memory polyimide pre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J5/18C08G73/10C08L79/08C08K7/06
CPCC08G73/1042C08G73/1071C08G2280/00C08J5/18C08J2379/08C08K7/06C08K2201/011C08K2201/013
Inventor 冷劲松高会刘彦菊
Owner HARBIN INST OF TECH
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