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Organogel, preparation method thereof and transparent optical device

An organic gel, refractive index technology, applied in the field of materials, can solve the problems of low refractive index, high elastic modulus, low yield rate, etc., and achieve the effect of high refractive index, low elastic modulus, and strong practicability

Active Publication Date: 2022-08-09
THE CHINESE UNIV OF HONG KONG SHENZHEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the materials commonly used to make liquid lenses can be divided into two types: heterogeneous phase and homogeneous phase. The heterogeneous phase system, such as deionized water coated with polydimethylsiloxane film, ionic liquid, organic liquid with high dielectric constant, etc. materials, there are disadvantages such as complex manufacturing process, poor stability, and low yield rate, while organogels obtained by homogeneous systems such as polydimethylsiloxane and silicone oil after curing show higher elastic modulus and relatively low Low refractive index is not conducive to the preparation of high-performance liquid lenses

Method used

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  • Organogel, preparation method thereof and transparent optical device
  • Organogel, preparation method thereof and transparent optical device

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preparation example Construction

[0035] A preparation method of organogel, comprising:

[0036] mixing raw materials including acrylate polymer monomer, methylphenyl silicone oil with high refractive index, crosslinking agent and initiator, and reacting to obtain polymer precursor liquid;

[0037] The polymer precursor liquid is cured to obtain the organogel.

[0038] In an optional embodiment, the acrylate polymer monomer includes one of ethyl acrylate, butyl acrylate, methyl methacrylate, hydroxyethyl acrylate, benzyl acrylate, and hexafluorobutyl acrylate one or more.

[0039] In an optional embodiment, the refractive index of the high refractive index methylphenyl silicone oil ranges from 1.50 to 1.60.

[0040] In an optional embodiment, the crosslinking agent includes one or more of 1,6-hexanediol diacrylate, polyethylene glycol dimethacrylate, and polyethylene glycol diacrylate ;

[0041] In an optional embodiment, the amount of the crosslinking agent is 0.1%-1% of the molar amount of the acrylate p...

Embodiment 1

[0056] The present embodiment provides an organic gel, the monomer is selected from ethyl acrylate, the silicone oil is selected from polymethylphenylsiloxane (IOTA-704 from Aiyota Silicone Oil Co., Ltd.) with a room temperature refractive index of 1.5515, and the crosslinking agent is 1,6-Hexanediol diacrylate, the initiator is 1-hydroxycyclohexyl phenyl ketone, the volume ratio of monomer to silicone oil is 3:7, the dosage of crosslinking agent and initiator is ethyl acrylate respectively The molar percentage of the total amount is 0.2% and 1%.

[0057] Its preparation method is as follows:

[0058] (1) fully miscible acrylate polymer monomer, methylphenyl silicone oil with high refractive index, crosslinking agent and initiator to obtain transparent and uniform liquid;

[0059] (2) Crosslinking the homogeneous liquid obtained in step (1) to obtain the organogel; the crosslinking method adopts ultraviolet light with a wavelength of 365 nm to irradiate for 30 minutes.

[00...

Embodiment 2

[0064] This embodiment provides an organic gel, the monomer is hexafluorobutyl acrylate, and the silicone oil is polymethylphenylsiloxane (IOTA-705 from Iota Silicone Oil Co., Ltd.) with a room temperature refractive index of 1.5775, cross-linked The agent is polyethylene glycol dimethacrylate, the initiator is azobisisobutyronitrile, the volume ratio of monomer and silicone oil is 1:1, the dosage of crosslinking agent and initiator is hexafluorobutyl acrylate respectively The molar percentage of the total amount is 0.1% and 2%.

[0065] Its preparation method is as follows:

[0066] (1) fully miscible acrylate polymer monomer, methylphenyl silicone oil with high refractive index, crosslinking agent and initiator to obtain transparent and uniform liquid;

[0067] (2) Crosslinking the homogeneous liquid obtained in step (1) to obtain the organogel; the crosslinking method adopts heating at 60 degrees Celsius for 4 hours.

[0068] The light transmittance in the visible light r...

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Abstract

The invention provides organic gel, a preparation method thereof and a transparent optical device, and relates to the field of materials. The preparation method of the organic gel comprises the following steps: mixing raw materials including an acrylate polymer monomer, methyl phenyl silicone oil with a high refractive index, a cross-linking agent and an initiator, and reacting to obtain a polymer precursor solution; and curing the polymer precursor solution to obtain the organic gel. The organic gel is prepared by using the preparation method of the organic gel. The raw material of the transparent optical device comprises the organic gel. The organic gel provided by the invention has the advantages of high light transmittance, high refractive index, low elastic modulus and the like, and can effectively solve the problems existing in the field of current transparent optical materials.

Description

technical field [0001] The present application relates to the field of materials, and in particular, to an organic gel, a preparation method thereof, and a transparent optical device. Background technique [0002] Optical lenses play an important role in industrial manufacturing and daily life, and are widely used in machine imaging, intelligent manufacturing, rehabilitation medicine and other fields. Traditional zoom lenses are mostly composed of a series of hard lenses with different focal lengths, and the focal length is changed by driving the lens to move by a motor. However, this method has very strict requirements on the trajectory control of a single lens, which leads to an increase in the complexity of the device structure, an increase in cost, and it is also difficult to achieve continuous and precise changes in focal length. In order to solve the common problems of hard lenses, the use of liquid to make optical lenses has become the common focus of scientific rese...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F283/12C08F283/06C08F220/18C08F222/14C08F220/24G02B3/14
CPCC08F283/12C08F283/065G02B3/14C08F220/1802C08F222/102C08F220/24C08F220/1807
Inventor 朱世平张长庚张祺
Owner THE CHINESE UNIV OF HONG KONG SHENZHEN
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