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Active organo montmorillonite and preparation method thereof

A technology of organic montmorillonite and montmorillonite, applied in chemical instruments and methods, inorganic chemistry, non-metallic elements, etc., can solve the problems of blending application limitations, poor hydrophilicity of montmorillonite, etc., to increase the possibility, The effect of increasing the distance and expanding the application range

Inactive Publication Date: 2009-09-16
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] For the deficiencies in the montmorillonite modification technology of the prior art, the purpose of the invention is to provide a novel active organic montmorillonite and preparation method thereof, to enrich the types of active organic montmorillonite and overcome the improvement of the prior art. Due to the poor hydrophilicity of montmorillonite, the application of blending with hydrophilic polymers is limited, etc., it meets the requirements of montmorillonite in the fields of plastic processing, chemical building materials preparation, nanomaterial preparation, biomedical materials and cosmetics. Require

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] 10 parts by weight of phthalimide potassium salt and 15 parts by weight of Cl(CH 2 ) 12 N(CH 3 ) 3 Add Cl to the reactor equipped with a stirrer and a thermometer, then add 75 parts by weight of deionized water to the reactor, heat, stir and reflux at about 100°C for about 6 hours, cool to 20°C and repeat with deionized water Wash to remove unreacted organic intercalant Cl(CH 2 ) 12 N(CH 3 ), Cl and potassium phthalimide to obtain a modified organic intercalant product.

[0024] Add the modified organic intercalant product of 1 weight part of sodium montmorillonite (Na-MMT) and 3 weight parts in the reactor that stirrer and thermometer are housed, then add the DMF of 96 weight parts, at 120 Stir and react at about ℃ for about 4 hours, and then wash repeatedly with DMF to remove unreacted modified organic intercalation agent to obtain organic modified montmorillonite products.

[0025] Add 5 parts by weight of organically modified montmorillonite and 10 parts by w...

Embodiment 2

[0027] 10 parts by weight of phthalimide potassium salt and 30 parts by weight of Br(CH 2 ) 18 N(CH 3 ) 3 Add Br into the reactor equipped with a stirrer and a thermometer, then add 60 parts by weight of deionized water to the reactor, heat, stir and reflux at about 80°C for about 10 hours, cool to about 25°C and use deionized water Repeated washing to remove unreacted organic intercalant Br(CH 2 ) 18 N(CH 3 ) 3 Br and potassium phthalimide to obtain a modified organic intercalant product.

[0028] Add 1 part by weight of sodium montmorillonite Na-MMT and 9 parts by weight of modified organic intercalation agent products into a reactor equipped with a stirrer and a thermometer, then add 90 parts by weight of DMSO, at about 90 ° C Stir the reaction for about 6 hours, and then wash it repeatedly with DMSO to remove the unreacted modified organic intercalation agent to obtain the organic modified montmorillonite product.

[0029] Add 5 parts by weight of organically modif...

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Abstract

The invention discloses an active organo montmorillonite and a preparation method thereof, wherein, the organo montmorillonite is the amino-containing active organo montmorillonite composed of Na-montmorillonite and an organic intercalation agent which intercalate in the Na-montmorillonite and is subjected to the modification of potassium phthalimide; the organic intercalation agent is an organic compound represented by R(CH2)<12-18N>(CH3)3R or R(CH2)<12-18>NH2 structural formulae, R in the formulae is chlorine atom or bromine atom. The preparation method thereof comprises the step of: subjecting the modified organic intercalation agent and the Na-montmorillonite to intercalation in a solvent at 80-120 DEG C and then to amination with hydrazine hydrate on condition that the solvent is present, in order to prepare the amino-containing active organo montmorillonite. The organo montmorillonite prepared by the invention has outstanding dispersity both in the organic solvent and in the water and can be better used for blending with other polymers to prepare a composite material. The invention can be used for the fields of plastic processing, the preparation of chemical building material, the preparation of nano material, biomedical material and cosmetics.

Description

technical field [0001] The invention relates to the technical field of montmorillonite modification, in particular to the technique of modifying montmorillonite by Gabriel method, and specifically provides an organic montmorillonite and a preparation method thereof. Background technique [0002] Montmorillonite is a naturally occurring nanomaterial, and its basic structural unit is a layered structure in which a piece of aluminum-oxygen octahedron is sandwiched between two pieces of silicon-oxygen tetrahedron. Si in the tetrahedron of montmorillonite is often replaced by Al 3+ Alternative, Al in octahedron 3+ Often referred to as Mg 2+ , Fe 3+ , Fe 2+ , Li + Etc substitution, so that the surface of the montmorillonite layer has excess negative charges, so the montmorillonite has a certain ion exchange capacity. It is because of these structural characteristics of montmorillonite that its application in composite materials with other polymers has attracted much attentio...

Claims

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Application Information

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IPC IPC(8): C01B33/44
Inventor 林炜李德富穆畅道张凯王雨浩
Owner SICHUAN UNIV
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