Preparation method and self-repair method of self-repairable polymethylmethacrylate resin film

A technology of polymethyl methacrylate and resin film, which is applied in the field of preparation and self-repair of self-repairable polymethyl methacrylate resin film, and can solve problems such as breakage and easy occurrence of cracks in polymethyl methacrylate , to achieve the effect of accurate local repair, convenient and flexible repair, and strong promotion

Inactive Publication Date: 2013-06-19
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention aims to solve the problem that polymethyl methacrylate is prone to cracks and breakag

Method used

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  • Preparation method and self-repair method of self-repairable polymethylmethacrylate resin film
  • Preparation method and self-repair method of self-repairable polymethylmethacrylate resin film

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specific Embodiment approach 1

[0022] Specific embodiment one: the preparation method of the self-repairable polymethyl methacrylate resin film of this embodiment is specifically prepared according to the following steps:

[0023] 1. Dissolving polymethyl methacrylate resin in chloroform to obtain a solution with a mass concentration of polymethyl methacrylate resin of 2% to 6%;

[0024] 2. Add gold nanoparticles with a particle size of 48nm to 52nm into the solution obtained in step 1, mix evenly, and obtain a gold nanoparticle mass concentration of 3.0×10 -3 wt%~2.1x10 -2 wt% mixed solution;

[0025] 3. Use the method of spin coating to evenly cover the mixed solution obtained in step 2 on the silicon substrate. During spin coating, control the speed at 480rpm-520rpm and keep it for 3s-10s, then control the speed at 1800rpm-2200rpm and keep it for 30s-60s , and then control the speed to 3800rpm-4200rpm, keep it for 45s-80s, then put it on the hot plate, and keep it for 85s-95s at a temperature of 160°C-...

specific Embodiment approach 2

[0026] Embodiment 2: The difference between this embodiment and Embodiment 1 is that in Step 1, the mass concentration of polymethyl methacrylate resin is 3% to 4%. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0027] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is: the mass concentration of gold nanoparticles in step two is 9.0×10 -3 wt%~2.0x10 -2 wt%. Others are the same as in the first or second embodiment.

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Abstract

The invention relates to a preparation method and a self-repair method of a self-repairable polymethylmethacrylate resin film. The preparation method solves the problem that polymethylmethacrylate produces cracks and is damaged easily in use. The preparation method comprises the following steps of 1, preparing a polymethylmethacrylate resin solution, 2, preparing a nano-particle/polymethylmethacrylate mixed solution, and 3, preparing the self-repairable polymethylmethacrylate resin film. The self-repair method has a wide repairable-resin selection scope and has stronger popularization. The preparation method can be used for preparation of a self-repairable polymethylmethacrylate resin film and the self-repair method is suitable for self-repair of a damaged polymethylmethacrylate resin film.

Description

technical field [0001] The invention relates to the preparation and self-repairing method of a polymethyl methacrylate resin film. Background technique [0002] Gold nanoparticles have the small size effect, surface effect and quantum size effect that all nanoparticles have, but the most interesting property of gold nanoparticles is the localized surface plasmon resonance effect (LSPR). Gold nanoparticles have highly active outer electrons. When light (electromagnetic) waves radiate to metal nanoparticles whose particle size is much smaller than their excitation wavelength, the generated surface plasmon waves are confined near the nanostructure. When the incident light frequency When the frequency is equal to the collective oscillation of free electrons, resonance occurs, which is called LSPR. Gold nanoparticles can be regarded as composed of positively charged atomic nuclei and negatively charged free electrons. When the surface of gold nanoparticles is subjected to the ac...

Claims

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Application Information

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IPC IPC(8): C08J5/18C08L33/12C08K3/08C08J7/00B05D1/40
Inventor 王荣国郝立峰曹振兴王琪刘文博矫维成杨帆徐忠海张剑光赫晓东
Owner HARBIN INST OF TECH
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