High-strength silicon dioxide and clay dual nano-composite hydrogel and preparation method thereof

A silica and nano-composite technology, applied in the field of organic/inorganic nano-composite materials, can solve problems such as the limitation of dispersion degree, easy formation of aggregation, gel strength restriction, etc., and achieve the effect of excellent mechanical properties and simple preparation process
CN104530294AInactive Publication Date: 2015-04-22XINJIANG UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
XINJIANG UNIVERSITY
Publication Date
2015-04-22
Estimated Expiration
Not applicable · inactive patent
Patent Text Reader

Abstract

The invention relates to a high-strength silicon dioxide and clay dual nano-composite hydrogel and a preparation method thereof. The preparation method is characterized by comprising the following steps: adding a monomer and a silicon dioxide precursor into clay aqueous dispersion liquid with mass percentage concentration of 1-15%, and stirring at normal temperature until uniformly dispersing; then adding an initiating agent, and stirring to be uniform; and reacting mixed liquid for 5-48 hours at 20-90 DEG C until a nano-composite hydrogel is formed, wherein the mass of the clay accounts for 1-30% of the mass of the monomer, the mass of the silicon dioxide precursor accounts for 1-50% of the mass of the monomer, and the mass of the initiating agent accounts for 0.5-2% of the mass of the monomer. The dual nano-composite hydrogel provided by the invention is simple in preparation method and high in gel strength, and ensures that the needs of more fields can be met.
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Description

technical field

[0001] The invention relates to a high-strength silicon dioxide and clay dual nanocomposite hydrogel and a preparation method thereof. It belongs to the technical field of organic / inorganic nanocomposite materials. Background technique

[0002] Hydrogel is a kind of slightly cross-linked hydrophilic functional polymer, which can be used in agriculture, gardening, medicine and health, artificial tissue, separation engineering and other fields. Traditional hydrogels are mostly made of acrylic acid, acrylamide or their derivatives through chemical cross-linking polymerization. The application fields of hydrogels are largely limited due to their poor mechanical properties and prone to fragmentation. Therefore, the design and synthesis of high-strength hydrogels has always been one of the hot research topics. In recent years, a variety of new structural hydrogels with good mechanical properties have been designed and developed, such as topological hydrogels, do...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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