Controllable-optical-property shape-memory polymer film and preparation method thereof

A technology for memory polymers and optical properties, applied in the field of preparation and application of intelligent polymer materials, can solve problems such as the inability to form thin films, and achieve the effects of low cost, wide application fields, and good industrial application potential

Active Publication Date: 2014-10-08
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these micro-nano structures are prepared in the form of bulk shape memory polymers and cannot form thin films.

Method used

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  • Controllable-optical-property shape-memory polymer film and preparation method thereof
  • Controllable-optical-property shape-memory polymer film and preparation method thereof
  • Controllable-optical-property shape-memory polymer film and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0030] Mix styrene, butyl acrylate and benzoyl peroxide in a ratio of 30:20:1, prepare a solution with a glass transition temperature of about 70°C, stir at room temperature, and the stirring rate is 300rad / min. for 30 minutes until the solution is clear and transparent, and a uniformly dispersed styrene-based shape memory polymer solution is obtained. Place the fully mixed solution system in a vacuum box at room temperature to remove air bubbles, and continue vacuuming for 15 minutes after the air pressure reaches 0.1 MPa. In order to better analyze the optical, mechanical and thermal properties of this kind of film, a 4-inch silicon wafer polished on one side was selected as the substrate of the spin-coated film to prepare a smooth-surfaced shape-memory polymer film sample. The substrate used as a template is soaked in absolute ethanol and acetone for 10 minutes before use, and then washed twice with deionized water, and then placed in deionized water for ultrasonic cleaning...

Embodiment 2

[0032] Mix styrene, butyl acrylate and benzoyl peroxide in a ratio of 10:40:1, prepare a solution with a glass transition temperature of about 30°C, stir at room temperature, and the stirring rate is 300rad / min. for 30 minutes until the solution is clear and transparent, and a uniformly dispersed styrene-based shape memory polymer solution is obtained. Place the fully mixed solution system in a vacuum box at room temperature to remove air bubbles, and continue vacuuming for 15 minutes after the air pressure reaches 0.1 MPa. A 4-inch silicon wafer with a cylindrical micropit array etched on the surface is used as a template for backup. The substrate used as a template is soaked in absolute ethanol and acetone for 10 minutes before use, and then washed twice with deionized water, and then placed in deionized water for ultrasonic cleaning for 10 minutes. After the above steps are completed, take out the substrate with tweezers and put it in Dry in an incubator at 80°C for later ...

Embodiment 3

[0034]Mix styrene, butyl acrylate and benzoyl peroxide in a ratio of 30:20:1, prepare a solution with a glass transition temperature of about 70°C, stir at room temperature, and the stirring rate is 300rad / min. for 30 minutes until the solution is clear and transparent, and a uniformly dispersed styrene-based shape memory polymer solution is obtained. Place the fully mixed solution system in a vacuum box at room temperature to remove air bubbles, and continue vacuuming for 15 minutes after the air pressure reaches 0.1 MPa. A 4-inch silicon wafer with an array of hexagonal micropit etched on its surface was used as a template for backup. The substrate used as a template is soaked in absolute ethanol and acetone for 10 minutes before use, and then washed twice with deionized water, and then placed in deionized water for ultrasonic cleaning for 10 minutes. After the above steps are completed, take out the substrate with tweezers and put it in Dry in an incubator at 80°C for late...

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Abstract

The invention discloses a controllable-optical-property shape-memory polymer film and a preparation method thereof. Styryl shape-memory polymer solution prepared proportionally is used as the raw material and subjected to a micro photoetching silyl template and spin coating technique to prepare the multiple shape-memory polymer micropattern structure film. The preparation method is simple to operate, and has the advantages of low cost and controllable film thickness; and film surface micro/nano structure can be predesigned according to the application demands, and is applicable to multiple application demands in the field of micro-optics. The styryl shape-memory polymer film has excellent shape memory performance, and can implement the process of quick recovery of the imprinting disappearance on the structural film surface under thermal excitation. By combining the shape-memory characteristic of the material, the method can implement controllable optical properties of the structural film, and has wide application prospects in the fields of tunable micro optical devices, color-control intelligent buildings, display devices, sensors and the like.

Description

technical field [0001] The invention relates to the field of preparation and application of intelligent polymer materials, in particular to a shape-memory polymer film with controllable optical properties and a preparation method thereof. Background technique [0002] As a new type of actively deformable smart material, shape memory polymers can restore the shaped shape to the original state when stimulated by the external environment. The unique shape memory properties of shape memory polymers make them have a wide range of application prospects in biomedicine, electronic devices, self-healing materials, actuators, and space-deployable structures, all of which utilize the macroscopic large-scale deformation of shape memory polymers and reply process. With the development of optical storage, micro optics, microelectronics, micromechanics, microfluidics, and biomaterial processing, the shape memory effect and recovery characteristics at the micro-nano scale have become a new...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/18C08L25/14C08L33/08C08F220/18C08F212/08
Inventor 冷劲松刘彦菊李鹏王文欣金鹏韩余
Owner HARBIN INST OF TECH
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