Preparation method for mesoporous carbon nanotube-cellulose composite temperature-sensitive adsorption material

A nanotube composite and adsorption material technology, which is applied in the field of preparation of mesoporous carbon nanotube composite cellulose temperature-sensitive adsorption materials, can solve problems such as poor toughness and application limitations of temperature-sensitive materials, and achieve improved adsorption and excellent mechanical properties , Improve the effect of temperature sensitivity

Inactive Publication Date: 2017-10-03
ANHUI YINGSHANG ZHENGTAI ELECTRIC APPLIANCE
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Problems solved by technology

[0003] In Zhang Jing's "Preparation of Cellulose-Based Hybrid Materials and Research on Their Temperature-Sensitive Properties", nanocellulose suspensions were obtained by concentrated sulfuric acid pretreatment, and nanocellulose-dioxide with high specific surface area was prepared by electrostatic adsorption. Silicon hybrid materials, and the use of atom transfer radical reaction to prepare nano

Method used

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Example Embodiment

[0017] A preparation method of mesoporous carbon nanotube composite cellulose temperature-sensitive adsorption material includes the following steps:

[0018] (1) Add 25 parts by weight of carbon nanotubes to 1.5 parts by weight of sodium bromide and 90 parts by weight of water, add them to the container and react at 80°C for 3 hours, add 1.5 parts by weight of cetyltrimethylammonium bromide and heat After reacting at 65°C for 6 hours, filter, wash and dry, set aside;

[0019] (2) Add 7 parts by weight of cellulose to 130 parts by weight of water and 12 parts by weight of starch in sequence, stir and let stand for 8 hours, add 1 part by weight of alkylphenol polyoxyethylene ether, 8 parts by weight of acrylamide, and disperse by low-temperature ultrasonic Then, after magnetic stirring for 8 hours, place it at 25°C for 2 days for later use;

[0020] (3) Heat the solution obtained in step (2) in a water bath at 40°C, add 4 parts by weight of nano silica while stirring, and keep the te...

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Abstract

The invention discloses a preparation method for a mesoporous carbon nanotube-cellulose composite temperature-sensitive adsorption material. The preparation method comprises the following steps: subjecting carbon nanotubes to oxidation with sodium bromide and then to treatment and modification with cetyltrimethylammonium bromide; then soaking cellulose with a starch solution and adding alkylphenol ethoxylate for surface activation and modification; then successively carrying out grafting and ultrasonic dispersion so as to prepare a solution; adding a nanometer silica and preparing a cellulose-silica hybrid material by using an electrostatic adsorption method; and then calcining the carbon nanotubes and adding glutaraldehyde for cross-linking so as to prepare the mesoporous carbon nanotube-cellulose composite temperature-sensitive adsorption material. The preparation method provided by the invention is simple in process and low in cost, and can prevent raw materials from agglomeration; and the prepared mesoporous carbon nanotube-cellulose composite temperature-sensitive adsorption material has adsorptivity and excellent mechanical properties.

Description

technical field [0001] The invention relates to the technical field of temperature-sensitive materials, in particular to a method for preparing a mesoporous carbon nanotube composite cellulose temperature-sensitive adsorption material. Background technique [0002] In the past ten years, the development of porous nanomaterials in pharmaceutical formulations has aroused the interest of many researchers. Due to the biocompatibility and easy degradation of cellulose, the application of nanocellulose in pharmaceutics, nanomedicine, and biotechnology has gradually become a hot topic. Due to the different preparation methods, surface modifications and sources of nanocellulose, many different types of nanocellulose are produced, and the rod-shaped nanocellulose particles are called cellulose nanofibrils or nanocrystals. Nanocellulose mainly exists in the form of hydrogel or suspension with high water content, and solid porous nanocellulose airgel can be obtained by freeze-drying o...

Claims

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Application Information

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IPC IPC(8): B01J20/24B01J20/30
CPCB01J20/24
Inventor 胡朝刚
Owner ANHUI YINGSHANG ZHENGTAI ELECTRIC APPLIANCE
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