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Preparation method for preparing polymer skeleton with surface coated with HKUST-1 through 3D printing, and application of polymer skeleton

A HKUST-1, 3D printing technology, applied in chemical instruments and methods, adsorption water/sewage treatment, other chemical processes, etc., to achieve the effect of simple preparation process, good adsorption effect, and mild reaction conditions

Inactive Publication Date: 2014-05-14
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, this technology has been applied in aerospace, automobile, jewelry processing, industrial design, medical treatment and other fields, but there is no relevant report on the preparation of porous polymer composite materials by 3D printing technology.

Method used

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  • Preparation method for preparing polymer skeleton with surface coated with HKUST-1 through 3D printing, and application of polymer skeleton
  • Preparation method for preparing polymer skeleton with surface coated with HKUST-1 through 3D printing, and application of polymer skeleton
  • Preparation method for preparing polymer skeleton with surface coated with HKUST-1 through 3D printing, and application of polymer skeleton

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 23

[0037] Example 2 Preparation of PLA polymer skeleton coated with HKUST-1 by 3D printing and its adsorption to gentian violet.

[0038] The computer makes the model file of the PLA polymer skeleton to be printed, and uses a 3D printer to print the polymer skeleton according to the structure determined by the model file. Add the printed polymer backbone to an aqueous ethanol solution (50 mL, ethanol and water v:v = 1:1) containing copper acetate (5 mmol) and trimesic acid (3 mmol). The temperature was raised to 45° C. under constant stirring, and triethylamine (4.5 mmol) was added dropwise to the solution. After stirring for 4 hours, the mixture was dried at room temperature for 12 hours. The resulting product was soaked in methanol for 2 days, during which the methanol solvent was changed every 8 hours. The obtained product was dried at 60 °C for 12 h. The resulting grain size for this example was 20nm–5μm. A gentian violet aqueous solution with a concentration of 1 mg / L was...

Embodiment 33

[0039] Example 3 Preparation of PMMA polymer skeleton coated with HKUST-1 by 3D printing and its adsorption on rhodamine 6G.

[0040]The computer makes the model file of the PMMA polymer skeleton to be printed, and uses a 3D printer to print the polymer skeleton according to the structure specified in the model file. The printed polymer backbone was added to an aqueous ethanol solution (120 mL, ethanol and water v:v = 1:1) containing copper chloride (4 mmol) and trimesic acid (3 mmol). The temperature was raised to 85° C. under constant stirring, and triethylamine (1.5 mmol) was added dropwise to the solution. After stirring for 2 hours, the mixture was dried at 80° C. for 12 hours. The resulting product was immersed in methanol for 3 days, during which the methanol solvent was changed every 8 hours. The obtained product was dried at 60 °C for 12 h. The resulting grain size for this example was 20nm–5μm. Configuration concentration is the rhodamine 6G aqueous solution of 20...

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Abstract

The invention belongs to a preparation method for preparing a polymer skeleton with the surface coated with HKUST-1 through 3D printing, and an application of a polymer skeleton. The preparation method comprises the following steps: printing the polymer skeleton according to a structure specified in a model file by using a 3D printer, and adding the polymer skeleton into an ethanol water solution containing copper salt and trimesic acid; stirring and dripping triethylamine into the ethanol water solution; drying an obtained product at normal temperature or at 50-80 DEG C; soaking the product in methanol, and during the period, replacing the methanol solvent once every 8 hours; drying at the normal temperature or at 50-80 DEG C. According to the preparation method disclosed by the invention, the reaction conditions in the preparation process are moderate, the synthesis is performed at the normal pressure, no pressure equipment is required, the grain size of crystals which form the HKUST-1 is from 20 nanometers to 5 micrometers, the HKUST-1 is uniformly distributed on the surface of a polymer, and the full coverage rate is basically realized. The prepared polymer skeleton with the surface coated with the HKUST-1 has a remarkable dye adsorption effect, and the adsorption efficiency can be over 90%.

Description

technical field [0001] The invention belongs to the field of advanced nanomaterials and nanotechnology, and specifically relates to a preparation method and application of a polymer skeleton coated with HKUST-1 by 3D printing. Background technique [0002] MOFs are a new type of porous metal-organic materials, which have become a research hotspot in recent years because of their ultra-high specific surface area and ordered pore structure. HKUST‐1 is also known as Cu‐BTC or Cu 3 (BTC) 2 , is a kind of MOFs material. It consists of copper ions as the central metal ion and trimesic acid as the organic ligand, which are connected by coordination bonds. Because HKUST-1 has a unique three-dimensional pore structure, it is widely used in the research of gas purification and separation, gas adsorption and storage, catalysis, adsorbents, chemical sensors and other fields. [0003] 3D printing is a rapid prototyping technology based on digital model files and metal or plastic as r...

Claims

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Application Information

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IPC IPC(8): B01J20/26B01J20/30C02F1/28
Inventor 刘昌俊王宗元张瑶周游李敏悦
Owner TIANJIN UNIV
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