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Organosilicon polyethylene glycol hydrogel material with self-healing characteristic and preparation method thereof

A polyethylene glycol and organosilicon technology, which is applied in the field of organosilicon hydrogels, can solve the problems of high preparation cost, poor self-healing performance, and inconvenient preparation methods, and achieves simple preparation process, low cost and environmentally friendly preparation, good biocompatibility

Pending Publication Date: 2020-06-05
刘云晖
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still some problems that cannot be ignored in the preparation of self-healing silicone-based hydrogels, such as poor self-healing performance, inconvenient preparation methods, and relatively high preparation costs.

Method used

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  • Organosilicon polyethylene glycol hydrogel material with self-healing characteristic and preparation method thereof
  • Organosilicon polyethylene glycol hydrogel material with self-healing characteristic and preparation method thereof
  • Organosilicon polyethylene glycol hydrogel material with self-healing characteristic and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] (1) Preparation of reaction solution

[0045] Disperse amino silicone oil (average molecular weight 80000g / mol, ammonia value 0.6) in deionized water to obtain an aqueous solution of component A amino silicone oil with a mass percent concentration of 6%; amino-terminated polyethylene glycol (average molecular weight 2000g / mol) was dissolved in deionized water to obtain an aqueous solution of amino-terminated polyethylene glycol of component B with a mass percent concentration of 5%; N,N'-thiocarbonyldiimidazole was dissolved in deionized water to obtain a mass percent concentration 8% C component N,N'-thiocarbonyldiimidazole aqueous solution;

[0046] Wherein, the structural formula of amino-terminated polyethylene glycol aqueous solution is:

[0047]

[0048] (2) Preparation of pre-polymerization solution

[0049] Mix 100g of component B and 800g of component C, stir evenly, and react at 60°C for 2 hours to obtain a prepolymer solution;

[0050] (3) Preparation ...

Embodiment 2

[0055] (1) Preparation of reaction solution

[0056] Disperse amino silicone oil (average molecular weight 20000g / mol, ammonia value 1.0) in deionized water to obtain an aqueous solution of component A amino silicone oil with a mass percent concentration of 2%; amino-terminated polyethylene glycol (average molecular weight 6000g / mol) was dissolved in deionized water to obtain an aqueous solution of amino-terminated polyethylene glycol of component B with a mass percentage concentration of 4%; N,N'-thiocarbonyldiimidazole was dissolved in deionized water to obtain a mass percentage concentration 8% C component N,N'-thiocarbonyldiimidazole aqueous solution;

[0057] Wherein, the structural formula of amino-terminated polyethylene glycol aqueous solution is:

[0058]

[0059] (2) Preparation of pre-polymerization solution

[0060] Mix 100g of component B and 6g of component C, stir evenly, and react at 40°C for 5h to obtain a prepolymer solution;

[0061] (3) Preparation o...

Embodiment 3

[0066] (1) Preparation of reaction solution

[0067] Disperse amino silicone oil (average molecular weight 100000g / mol, ammonia value 0.3) in deionized water to obtain an aqueous solution of component A amino silicone oil with a mass percent concentration of 30%; amino-terminated polyethylene glycol (average molecular weight 800g / mol) was dissolved in deionized water to obtain an aqueous solution of amino-terminated polyethylene glycol of component B with a mass percent concentration of 1%; N,N'-thiocarbonyldiimidazole was dissolved in deionized water to obtain a mass percent concentration 5% aqueous solution of component C N,N'-thiocarbonyldiimidazole;

[0068] Wherein, the structural formula of amino-terminated polyethylene glycol aqueous solution is:

[0069]

[0070] (2) Preparation of pre-polymerization solution

[0071] Mix 100g of component B and 20g of component C, stir evenly, and react at 30°C for 8 hours to obtain a prepolymer solution;

[0072] (3) Preparati...

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Abstract

The invention discloses an organosilicon polyethylene glycol hydrogel material with a self-healing characteristic and a preparation method thereof. Amino-terminated polyethylene glycol, amino siliconeoil, N, N '-carbonyl diimidazole and N, N'-thiocarbonyl diimidazole are reacted to prepare the organosilicon / polyethylene glycol hydrogel material containingurea groups and / orthiourea groups, so thatthe hydrogel material is endowed with a relatively good self-repairing function. Based on the water dispersibility of the amino silicon oil, in the whole process, an aqueous solution is adopted for reaction, so that the low-cost and environment-friendly preparation of the organosilicon-based hydrogel is realized; the organosilicon / polyethylene glycol hydrogel material prepared by the method is good in biocompatibility and simple in preparation process.

Description

technical field [0001] The invention belongs to the field of silicone hydrogel, and in particular relates to a silicone polyethylene glycol hydrogel material with self-healing properties and a preparation method thereof. Background technique [0002] The information disclosed in this background section is only intended to increase the understanding of the general background of the present invention, and is not necessarily taken as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. [0003] Silicone-based hydrogels have become a hot spot for researchers in the field of silicones because of their good thermal stability and special oxygen permeability. They are used in biomedical devices, especially contact or intraocular lenses, and It has broad application prospects in the fields of water purification, food packaging and storage, textiles, aquaculture and ship transportation. As a green and en...

Claims

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Application Information

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IPC IPC(8): C08G77/46C08G65/333C08G65/334C08J3/075C08L83/12
CPCC08G77/46C08G65/3348C08G65/33396C08J3/075C08J2383/12
Inventor 彭新艳刘云鸿刘云晖
Owner 刘云晖
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