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Polymethyl methacrylate photopolymer material as well as preparation and application thereof

A technology of polymethyl methacrylate and methyl methacrylate, which is applied in the field of holographic recording materials and can solve problems such as strong water absorption, low diffraction efficiency, and unstable gratings

Pending Publication Date: 2021-05-28
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the development of holographic storage materials, various recording materials such as silver salt dry plates, dichromate gelatin, and photorefractive crystals have been developed. Although these traditional recording materials have high photosensitivity and mature preparation ratios, they are still There are some major disadvantages, such as harsh post-wet chemical treatment, high environmental influence, high noise, low diffraction efficiency, strong water absorption, and grating instability, etc.

Method used

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  • Polymethyl methacrylate photopolymer material as well as preparation and application thereof
  • Polymethyl methacrylate photopolymer material as well as preparation and application thereof
  • Polymethyl methacrylate photopolymer material as well as preparation and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] The photopolymer holographic recording material is prepared by the following steps:

[0059] (1) The molds and glass substrates that need to be used in the preparation process are cleaned by ultrasonic vibration in absolute ethanol, rinsed with deionized water, put into a constant temperature oven and dried for use;

[0060] (2) Weighing methyl methacrylate (MMA) and azobisisobutyronitrile (AIBN) with a quality of 100g and 1g respectively, and mixing the two to obtain an organic mixture;

[0061] (3) The photosensitizer Irgacure 784 (TI) with a mass of 1 g was weighed, mixed with the obtained organic mixed solution, and ultrasonically oscillated in an ultrasonic cleaner for 20 minutes to mix it evenly to obtain the first mixed solution;

[0062] (4) Weigh 20nm amphiphilic SiO with a mass of 1g treated with KH570 coupling agent 2 Nanoparticles, which were added to 15g of methyl isobutyl ketone (MIBK), ultrasonic vibration for 3 hours, made a uniform SiO 2 Nanoparticle ...

Embodiment 2

[0066] The photopolymer holographic recording material is prepared by the following steps:

[0067] (1) The molds and glass substrates that need to be used in the preparation process are cleaned by ultrasonic vibration in absolute ethanol, rinsed with deionized water, put into a constant temperature oven and dried for use;

[0068] (2) Weighing methyl methacrylate (MMA) and azobisisobutyronitrile (AIBN) with a quality of 100g and 1g respectively, and mixing the two to obtain an organic mixture;

[0069] (3) The photosensitizer Irgacure 784 (TI) with a mass of 2 g was weighed, mixed with the obtained organic mixed solution, and ultrasonically oscillated in an ultrasonic cleaner for 20 minutes to mix it evenly to obtain the first mixed solution;

[0070] (4) Weigh 20nm amphiphilic SiO with a mass of 1g treated with KH570 coupling agent 2 Nanoparticles, which were added to 15g of methyl isobutyl ketone (MIBK), ultrasonic vibration for 3 hours, made a uniform SiO 2 Nanoparticle ...

Embodiment 3

[0074] The photopolymer holographic recording material is prepared by the following steps:

[0075] (1) The molds and glass substrates that need to be used in the preparation process are cleaned by ultrasonic vibration in absolute ethanol, rinsed with deionized water, put into a constant temperature oven and dried for use;

[0076] (2) Weighing methyl methacrylate (MMA) and azobisisobutyronitrile (AIBN) with a quality of 100g and 1g respectively, and mixing the two to obtain an organic mixture;

[0077] (3) The photosensitizer Irgacure 784 (TI) with a mass of 3 g was weighed, mixed with the obtained organic mixed solution, and ultrasonically oscillated in an ultrasonic cleaner for 20 minutes to mix it evenly to obtain the first mixed solution;

[0078] (4) Weigh 1g of 20nm amphiphilic SiO2 nanoparticles treated with KH570 coupling agent, add it to 15g of methyl isobutyl ketone (MIBK), and ultrasonically vibrate for 3 hours to obtain a uniform SiO2 2 Nanoparticle dispersion; ...

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Abstract

The invention discloses a polymethyl methacrylate photopolymer material as well as preparation and application thereof. The photopolymer material comprises the following components: polymethyl methacrylate and silicon dioxide nanoparticles, wherein the polymethyl methacrylate is obtained by polymerizing methyl methacrylate, azodiisobutyronitrile, methyl isobutyl ketone and a cationic photoinitiator, and the silicon dioxide nanoparticles are contained in the polymethyl methacrylate and are treated by a silane coupling agent. The photopolymer prepared by the invention has higher diffraction efficiency, refractive index modulation, low shrinkage wrinkle and high stability, and is suitable for the field of holographic storage.

Description

technical field [0001] The present invention relates to the technical field of holographic recording materials. Background technique [0002] The advent of the three-dimensional display era has increased the amount of information exponentially. People's demand for information is increasing, and more efficient and effective methods of recording, reading, and storing information, and more powerful storage materials are strongly needed by society. Research and development of new organic storage materials with large information storage capacity, fast reading speed, high data transmission efficiency and high redundancy is the only way to go. Optical information storage uses light waves as carriers, which have multiple characteristic parameters such as phase, amplitude and polarization. The stability of stored data, storage transmission speed, storage capacity and other characteristics of holographic storage all depend on holographic materials [0003] The quality and density o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G16C60/00
CPCG16C60/00
Inventor 张亚萍陈会心许蔚张永安王斌范厚鑫姚勇伟张竟原
Owner KUNMING UNIV OF SCI & TECH
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