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Preparation method of porous nano polymer composite material

A composite material and nanoporous technology, applied in alkali metal compounds, chemical instruments and methods, alkali metal oxides/hydroxides, etc., to achieve low cost, simple preparation method, and improved strength

Inactive Publication Date: 2014-02-19
LANZHOU UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, polymers that are polymerized in water have serious agglomeration, and there is no report on the use of acetanilide to make pores for such polymers.

Method used

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  • Preparation method of porous nano polymer composite material
  • Preparation method of porous nano polymer composite material
  • Preparation method of porous nano polymer composite material

Examples

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preparation example Construction

[0016] The present invention is a kind of preparation method of nanoporous polymer composite material, and its steps are:

[0017] (1) Add 0.1-0.5mol / L acid solution to the attapulgite pure soil and stir and disperse for 0.5h;

[0018] (2) Add aniline and γ-methacryloxypropyltrimethoxysilane, and stir for 0.5h;

[0019] (3) Add ammonium persulfate as an initiator, stir and let stand for 0.5h;

[0020] (4) Add acetanilide and stir to disperse for 0.5h;

[0021] (5) Suction filter to neutral, dry at 60°C, and grind;

[0022] (6) Wash with ethanol solution, filter with suction, dry at 60°C, and grind to obtain a dark green composite material.

[0023] The invention utilizes the principle that acetanilide has low solubility in water, 0.46g / 100g at 20°C, and high solubility in ethanol, 36.9g / 100g at 20°C, to form pores. Adding attapulgite clay as a support during the polyaniline polymerization process improves the strength of the composite material, and adding γ-methacryloxypro...

Embodiment 1

[0028] Example 1: Weigh 2.0 g of attapulgite clay, add 80 mL of 0.5 mol / L nitric acid and stir for 0.5 h, add 2.0 mL of aniline and 4.0 mL of γ-methacryloxypropyltrimethoxysilane and stir for 0.5 h, add 1.0g of ammonium persulfate, stirred and allowed to stand for 0.5h. Add 4.0 g of ground acetanilide, stir for 0.5 h, filter until neutral, dry at 60°C, grind, wash with ethanol solution, filter with suction, dry at 60°C, and grind to obtain a dark green composite material. The adsorption capacity for carbon tetrachloride is 14.28g / g. Such as figure 1 Shown is the scanning electron microscope picture of implementation case 1.

Embodiment 2

[0029] Example 2: Weigh 1.0 g of attapulgite clay, add 80 mL of 0.5 mol / L nitric acid and stir for 0.5 h, add 2.0 mL of aniline and 4.0 mL of γ-methacryloxypropyltrimethoxysilane and stir for 0.5 h, add 1.0 g ammonium persulfate, stirred and allowed to stand for 0.5h. Add 4.0 g of ground acetanilide, stir for 0.5 h, filter until neutral, dry at 60°C, grind, wash with ethanol solution, filter with suction, dry at 60°C, and grind to obtain a dark green composite material. The adsorption capacity for carbon tetrachloride is 15.16g / g. figure 2 Shown is the organic matter adsorption capacity of the composite material in Example 2.

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Abstract

A preparation method of a porous nano polymer composite material comprises the following steps: (1) adding pure attapulgite into a 0.1-0.5 mol / L acid solution, and dispersing by stirring for 0.5 h; (2) adding aniline and gamma-methylacryloyloxypropyl trimethoxysilane, and stirring for 0.5 h; (3) adding ammonium persulfate as an initiator, standing for 0.5 h after stirring; (4) adding acetanilide, and dispersing by stirring for 0.5h; (5) leaching till the mixture is neutral, drying at 60 DEG C, and grinding; (6) washing with ethanol solution, leaching, drying at 60 DEG C, and grinding to obtain the dark green composite material.

Description

technical field [0001] The invention belongs to the field of environmentally friendly adsorption materials, and in particular relates to a preparation method of a nanoporous polymer composite material. Background technique [0002] Acetanilide is the raw material of sulfa drugs, which can be used as analgesic, antipyretic and antiseptic. Used in the manufacture of dye intermediates p-nitroacetanilide, p-nitroaniline and p-phenylenediamine. The invention utilizes the principle that acetanilide has low solubility in water, 0.46g / 100g at 20°C, and high solubility in ethanol, 36.9g / 100g at 20°C, to form pores. Attapulgite clay, also known as palygorskite or palygorskite, is a hydrous magnesium-rich silicate clay mineral with a chain layer structure. The unique crystal structure makes attapulgite clay have good dispersion properties under the action of shear force, and it is widely used in coatings, drilling and slow release as thickeners, thixotropic agents, and suspension sta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J9/26C08L79/02C08K3/34C08G73/02B01J20/26B01J20/28B01J20/30
Inventor 徐惠陆海林陈泳张宝骞吴军霞唐靖庄君霞张俊龙王时雨
Owner LANZHOU UNIVERSITY OF TECHNOLOGY
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