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Photopolymer holographic memory materials comprising high refractive index epoxy and low refractive index olefine monomer and manufacturing method thereof

An epoxy resin matrix, epoxy resin technology, applied in the direction of information storage, record information storage, optical recording/reproduction, etc., can solve the problems of increasing storage capacity, shrinking volume, difficult thickness, etc., and achieve stable storage information , short production cycle and low cost

Inactive Publication Date: 2004-06-16
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] One of the objectives of the present invention is to solve the problems of volume shrinkage, difficult increase in thickness and limited storage capacity of traditional photopolymer materials used in volume holographic storage, and provide a kind of epoxy resin with high refractive index as the matrix material. A photopolymer volume holographic storage material containing polymerizable low-refractive-index ethylenic monomers, which does not shrink in volume during volume holographic recording

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Under the protection of a red light, add 30 grams of methyl methacrylate, 0.01 grams of 2,5-bis[4-(dimethylamino)-benzylidene]cyclopentanone, 0.35 grams of Hexaarylbisimidazole, 0.41 g 4-methyl-4H-1,2,4-triazole-3-thiol, 5 g epichlorohydrin, 50 g bisphenol A epoxy 618, 0.1 g BYK-066 and 0.1 gram of BYK-306, mixed thoroughly to form a transparent sol solution; then added 12 grams of triethylenetetramine to the transparent sol solution, stirred at room temperature for 15 minutes, and then injected the mixed solution with a volume of 76mm×26mm×0.8 mm glass container, after curing at room temperature for 24 hours, and then curing at 45 ° C for 24 hours, the photopolymer material capable of volume holographic storage can be obtained. Argon ion laser with a wavelength of 514.5nm is used as the light source, and the reference light intensity is 5mW / cm 2 , the maximum light intensity in the object light is 2.4mW / cm 2 , the holographic storage of image information can be carri...

Embodiment 2

[0043] Using the following formula, the photopolymer material was prepared according to the method of Example 1.

[0044] Bisphenol A epoxy 618 60g

[0045] Vinyl acetate 20g

[0046] Epichlorohydrin 10g

[0047] 2,5-bis[4-(dimethylamino)-benzylidene]cyclopentanone 0.01g

[0048] Diphenyliodonium salt 0.4 g

[0049] 4-methyl-4H-1,2,4-triazole-3-thiol 0.41

[0050] BYK-066 0.1g

[0051] BYK-306 0.1g

[0052] Tetraethylenepentamine 12g

[0053] The difference from Embodiment 1 is that curing is performed at room temperature to obtain a photopolymer material capable of volume holographic storage. Argon ion laser with a wavelength of 514.5nm is used as the light source, and the reference light intensity is 5mW / cm 2 , the maximum light intensity in the object light is 2.4mW / cm 2 , the angle between the reference light and the object light is 30 degrees, and the holographic storage of image information can be carried out at the same position through angle multiplexing techn...

Embodiment 3

[0055] Using the following formula, the photopolymer material was prepared according to the method of Example 1.

[0056] Bisphenol F epoxy 50g

[0057] Methyl acrylate 30g

[0058] Styrene oxide 5 g

[0059] Tetraiodofluorescein 0.03 g

[0060] Hexaarylbisimidazole 0.35g

[0061] 4-Methyl-4H-1,2,4-triazole-3-thiol 0.41g

[0062] BYK-354 0.1g

[0063] BYK-344 0.11g

[0064] m-xylylenediamine 10g

[0065] The difference from Embodiment 1 is that curing is performed at room temperature to obtain a photopolymer material capable of volume holographic storage. Using an argon ion laser with a wavelength of 488nm as the light source, the ratio of light intensity to object is 1:1, the angle between reference light and object light is 90 degrees, and the holographic storage of image information can be carried out at the same position through angle multiplexing technology.

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PUM

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Abstract

The invention relates to a photopolymer holographic storage material comprising high refractivity epoxy resin and low refractivity monomer and method for making it. Under the protection of red lamp or photophobic condition, using the following components by weight percentage: 15%-45% olefin monomer, 0.01-0.1% photosensitizer, 0.1-0.9% photo-initiation agent, 0.1-1.0% chain-transferring agent, 0.1-1.0% defoaming agent, 0.1-1.0% levelling agent, 3%-15% epoxy resin active deflocculating agent and 30%-70% epoxy resin for even mixing, forming transparent sol solution, then adding 5%-15% epoxy resin curing agent into the sol solution, mixing evenly and injecting into container, then the photopolymer holographic storage material according to the invention can be obtained through curing.

Description

technical field [0001] The invention belongs to the field of volume holographic photopolymer storage materials, in particular to a photopolymer volume holographic storage material composed of high refractive index epoxy resin and low refractive index vinyl monomer and a preparation method thereof. Background technique [0002] The rapid growth of the amount of information has made traditional storage materials less and less able to meet people's needs for massive information storage. Many new storage materials and storage technologies have emerged. Among them, optical holographic storage has become popular in recent years due to its high redundancy, high storage capacity, fast data transmission rate and storage time, and parallel content addressing. attention. There are also many studies on its related storage materials. Photopolymerized refractive index change materials have become the research focus because of their high signal-to-noise ratio, high dif...

Claims

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Application Information

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IPC IPC(8): G03F7/027G11B7/00
Inventor 施盟泉吴飞鹏李妙贞王尔鉴
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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