Hydrogel material with water content of 50%-60% and preparation method thereof

A hydrogel, water content technology, applied in optics, instruments, optical components, etc., to achieve the effect of enhancing comfort, good hydrophilicity, and good resistance to protein adsorption

Inactive Publication Date: 2019-09-20
甘肃天后光学科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Traditional frame glasses obviously cannot meet the aesthetic needs of modern people. In this case, contact

Method used

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  • Hydrogel material with water content of 50%-60% and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A hydrogel material with a water content of 50%-60%, which is prepared by the following method:

[0021] Step 1: Prepare raw materials according to the following weight: hydrophilic comonomer 2-hydroxyethyl methacrylate HEMA131.75g, hydrophilic substance 2-methacryloyloxyethylphosphorylcholine MPC12.37g, crosslinking agent two Ethylene glycol methacrylate EGDMA1.2g, initiator azobisisobutyronitrile AIBN0.3g;

[0022] Step 2: Mix the above raw materials separately and stir them with a mixer for 5 minutes to make them evenly stirred;

[0023] Step 3: Then inject it into the mold separately, and cure the reaction mixture by thermal initiation;

[0024] Step 4: Then demould separately to remove unreacted monomers or oligomers to obtain a hydrogel material.

[0025] Performance Testing:

[0026] Dry the above-mentioned hydrogel material at 100°C for 5 hours, then place it in a cooling device for cooling, measure its weight, and obtain the first weight, which is 145.62g; ...

Embodiment 2

[0028] A hydrogel material with a water content of 50%-60%, which is prepared by the following method:

[0029] Step 1: Prepare raw materials according to the following weight: hydrophilic comonomer 2-hydroxyethyl methacrylate HEMA131.04g, hydrophilic substance 2-methacryloyloxyethylphosphorylcholine MPC13.33g, crosslinking agent two Ethylene glycol methacrylate EGDMA1.2g, initiator azobisisobutyronitrile AIBN0.3g;

[0030] Step 2-step 4 is identical with embodiment 1;

[0031] The experimental environment of the performance test part is the same as that of Example 1. The measured first weight is 145.87g, the second weight is 220.44g, the moisture content is 51.12%, and the adsorption capacity per unit area is 3.8μg / cm 2 .

Embodiment 3

[0033] A hydrogel material with a water content of 50%-60%, which is prepared by the following method:

[0034] Step 1: Prepare raw materials according to the following weights: hydrophilic comonomer 2-hydroxyethyl methacrylate HEMA129.62g, hydrophilic substance 2-methacryloyloxyethylphosphorylcholine MPC14.24g, crosslinking agent two Ethylene glycol methacrylate EGDMA1.2g, initiator azobisisobutyronitrile AIBN0.3g;

[0035] Step 2-step 4 is identical with embodiment 1;

[0036] The experimental environment of the performance test part is the same as that of Example 1. The measured first weight is 145.36g, the second weight is 220.92g, the moisture content is 51.98%, and the adsorption capacity per unit area is 3.6μg / cm 2 .

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Abstract

The invention relates to a hydrogel material with water content of 50%-60% and a preparation method thereof. The hydrogel is prepared by the following method: the hydrogel is prepared by the following raw materials, by mass percent: 79%-94$ of a hydrophilic comonomer hydroxyethyl methylacrylate, 5%-20% of a hydrophilic substance 2-methacryloyloxyethyl phosphorylcholine, 0.2%-5% of a crosslinking agent ethylene dimethacrylate, and 0.1%-2% of an initiator azodiisobutyronitrile; the raw materials are mixed and uniformly stirred; the raw materials are injected into a mould, and the reaction mixture is solidified by a method of heat initiation; and demoulding is carried out, and the unreacted monomers or oligomers are removed to obtain the hydrogel material with the water content of 50%-60%. Compared with the prior art, the hydrogel material with the water content of 50%-60% and the preparation method thereof have the advantages of simple preparation method and easy operation.

Description

[0001] Technical field: [0002] The invention relates to a hydrogel material for contact lenses, and further relates to a hydrogel material with a water content of 50%-60% and a preparation method thereof. [0003] Background technique: [0004] As people's living standards have also been greatly improved, people's pursuit of high-quality life is also reflected in glasses. In the past, people had very low requirements for the functions of glasses, and only regarded them as a tool to see the world clearly. Nowadays, people not only hope to see the world clearly through glasses, but also hope that after wearing glasses, they can improve their "appearance" and increase the rate of return. Traditional frame glasses obviously cannot meet the aesthetic needs of modern people. In this case, contact lenses came into being, especially colored contact lenses, which are commonly known as color contact lenses. It not only has all the functions of frame glasses, but also has super high ae...

Claims

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Application Information

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IPC IPC(8): C08F220/20C08F230/02C08F222/14G02C7/04
CPCC08F220/20G02C7/049
Inventor 唐钰喜
Owner 甘肃天后光学科技有限公司
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