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Attapulgite-polyacrylic acid nanocomposite gel with high adsorptivity and preparation method thereof

A technology of attapulgite and polyacrylic acid, which is applied in the direction of chemical instruments and methods, alkali metal compounds, and other chemical processes, can solve the problems of loading capacity, poor antibacterial slow-release performance, etc., and achieve increased loading capacity, Good adsorption and enhanced stability

Inactive Publication Date: 2017-04-26
ANHUI BOSHUO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In his master's thesis "Gel Phenomenon and Application of Attapulgite / Polymer Nanocomposites Prepared by In-Situ Polymerization", Zhu Longxiang prepared nanocomposite hydrogels using attapulgite and acrylic acid, but they are used as drug carriers. There are also problems of poor loading capacity, antibacterial properties, and slow-release properties

Method used

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Embodiment

[0017] A kind of attapulgite / polyacrylic acid nano-composite gel with strong adsorption is characterized in that it is made of the following raw materials in parts by weight:

[0018] Nano zeolite powder 4, attapulgite 10, silicon dioxide 2, hydrochloric acid solution 20, zinc sulfate solution 40, absolute ethanol amount, nylon fiber 3, silane coupling agent KH-570 5, silane coupling agent KH-550 5 , chitosan 3, cerium nitrate 1, acrylic acid 10, appropriate amount of nitrogen, appropriate amount of distilled water;

[0019] The concentration of the hydrochloric acid solution is 2-6 mol / L; the concentration of the zinc sulfate solution is 0.5-1 mol / L.

[0020] The attapulgite / polyacrylic acid nanocomposite gel with strong adsorption and its preparation method are characterized in that it is made by the following steps:

[0021] a. Bake attapulgite at 120-160°C for 1-3 hours, remove organic compounds, disperse in distilled water, add hydrochloric acid solution, zinc sulfate so...

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Abstract

The invention discloses attapulgite-polyacrylic acid nanocomposite gel with the high adsorptivity and a preparation method thereof. The attapulgite-polyacrylic acid nanocomposite gel is characterized by being prepared from, by weight, 2-4 parts of nano-zeolite powder, 5-10 parts of attapulgite, 1-2 parts of silicon dioxide, 15-20 parts of a hydrochloric acid solution, 30-40 parts of a zinc sulfate solution, an appropriate amount of absolute ethyl alcohol, 1-3 parts of nylon fibers, 2-5 parts of a silane coupling agent KH-570, 2-5 parts of a silane coupling agent KH-550, 2-3 parts of chitosan, 0.4-1 part of cerous nitrate, 5-10 parts of acrylic acid, an appropriate amount of nitrogen and an appropriate amount of distilled water. According to the attapulgite-polyacrylic acid nanocomposite gel with the high adsorptivity and the preparation method thereof, chitosan added in a cooperative mode is rich in amino groups, and therefore not only can the amino groups be provided to be grafted on attapulgite to participate in crosslinking to enhance the stability of the network structure of the gel, but also the carrier adsorption amount of carriers can be increased due to the fact that chitosan has the very good adsorptivity; by adding the nano-zeolite powder and the like in a cooperative mode, the advantages of being good in adsorption performance and high in strength are given to the material.

Description

technical field [0001] The invention relates to an attapulgite carrier and its preparation, in particular to an attapulgite / polyacrylic acid nanocomposite gel with strong adsorption and a preparation method thereof. Background technique [0002] Drug carrier release and targeting system can reduce drug degradation and loss, reduce side effects, and improve bioavailability, so more and more attention has been paid to its research. Due to its unique amphiphilic structure, polymer surfactants can self-assemble to form various forms of aggregates, such as micelles, microemulsions, gels, liquid crystals, vesicles, etc. These aggregates have the ability to entrap drug molecules and at the same time have good permeability to the membrane, which has become an important research field of drug carriers. Attapulgite is a hydrous-rich magnesium-aluminosilicate mineral with attapulgite as the main component and a special fibrous crystal structure. Due to its excellent adsorption, ion e...

Claims

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Application Information

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IPC IPC(8): B01J20/26B01J20/28B01J20/30
CPCB01J20/267B01J20/28047
Inventor 张志军
Owner ANHUI BOSHUO TECH
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