Preparation method of high-strength hydrogel
A hydrogel, high-strength technology, applied in the field of hydrogels, can solve the problems of complex and time-consuming preparation process, restricting the application of high-strength hydrogels, etc., and achieves green and safe preparation process, short preparation process time, and energy consumption. small effect
Inactive Publication Date: 2014-04-23
HENAN POLYTECHNIC UNIV
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The invention relates to a high-strength hydrogel and a preparation method thereof. The preparation method comprises the steps of directly mixing a polymer, a monomer, an initiator, a cross-linking agent and water once, dissolving all the substances to form a homogeneous solution under a certain simulation condition, and then initiating and polymerizing by using heat or light to obtain the high-strength hydrogel, wherein the polymer is needed for preparation of the hydrogel and used for forming a first double network of a dual-network hydrogel; the monomer is used for polymerizing and forming a second double network of the dual-network hydrogel; the initiator is used for initiating the monomer to be polymerized; the cross-linking agent is used for performing cross-linking reaction in a monomer polymerizing process so as to form the second double network. According to the preparation method, a one-pot method is used for preparing the high-strength hydrogel, so that the method is simple and practicable; the prepared high-strength hydrogel has the characteristics of high strength and high toughness; a tensile strength of the gel is 0.6-1.2MPa, a tensile modulus is 100-200 KPa and a tensile strain reaches 1000-2680%; the prepared high-strength hydrogel can be widely applied to the fields of tissue repair, artificial organ, drug sustained release, sensors and the like.
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Property | Measurement | Unit |
Tensile strength | 1.0 | mPa |
Tensile strength | 1.2 | mPa |
Tensile modulus | 146.0 | kPa |
tensile | MPa | |
Particle size | Pa | |
strength | 10 |
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