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Hydrophilic nano montmorillonoid and its prepn

A nano-montmorillonite and hydrophilic technology, applied in the field of nano-materials, can solve problems such as nano-montmorillonite and nano-montmorillonite that have not been seen

Inactive Publication Date: 2003-05-14
烟台华实科技开发有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The application of nano-montmorillonite in other industries has not been reported, especially the hydrophilic nano-montmorillonite that has been made into nano-montmorillonite that can be used in strong polar materials

Method used

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  • Hydrophilic nano montmorillonoid and its prepn
  • Hydrophilic nano montmorillonoid and its prepn
  • Hydrophilic nano montmorillonoid and its prepn

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Preparation of organomontmorillonite:

[0028] Add 190 ml of distilled water to 10 g of sodium montmorillonite, stir to prepare a suspension of sodium montmorillonite with a concentration of 5 wt %, heat and stir to raise the temperature to 70±5° C. To 4.5 g of cetyltrimethylammonium bromide, 4 ml of hydrochloric acid solution with a concentration of 18 wt % was added to prepare cetyltrimethylammonium bromide hydrochloric acid solution. The cetyltrimethylammonium bromide hydrochloric acid solution was slowly added to the above-mentioned 5wt% sodium montmorillonite suspension. Stir and heat to 70±5°C. Heat preservation treatment for 2 hours to prepare organic montmorillonite suspension. The organic montmorillonite suspension is filtered, and the filter cake is washed until there is no chloride ion, so as to obtain the organic montmorillonite slurry. 1.1056 g of the organic montmorillonite slurry prepared above was dried for 2 hours at 105±5° C. to obtain a dry organic...

Embodiment 2

[0045] Preparation of organomontmorillonite:

[0046] Add 190 ml of distilled water to 10 g of sodium montmorillonite, stir to prepare a suspension of sodium montmorillonite with a concentration of 5 wt %, heat and stir to raise the temperature to 70±5° C. To 3.5g of octadecylamine, add 5ml concentration and be the hydrochloric acid solution of 18wt%, make octadecylamine hydrochloric acid solution. The octadecylamine hydrochloric acid solution was slowly added to the above-mentioned sodium montmorillonite suspension with a concentration of 5 wt%. Stir and heat to 70±5°C. Heat preservation treatment for 2 hours to prepare organic montmorillonite suspension. The organic montmorillonite suspension is filtered, and the filter cake is washed until there is no chloride ion, so as to obtain the organic montmorillonite slurry. 1.0896 g of the organic montmorillonite slurry prepared above was dried for 2 hours at 105±5° C. to obtain a dry organic montmorillonite. The concentration ...

Embodiment 3

[0063] Preparation of organomontmorillonite:

[0064] Add 190 ml of distilled water to 10 g of sodium montmorillonite, stir to prepare a suspension of sodium montmorillonite with a concentration of 5 wt %, heat and stir to raise the temperature to 70±5° C. Add 4 ml of 18 wt% hydrochloric acid solution to 7.5 g of distearylamine to prepare a distearylamine hydrochloric acid solution. The distearylamine hydrochloride solution was slowly added to the above-mentioned 5 wt% Na-montmorillonite suspension. Stir and heat to 70±5°C. Heat preservation treatment for 2 hours to prepare organic montmorillonite suspension. The organic montmorillonite suspension is filtered, and the filter cake is washed until there is no chloride ion, so as to obtain the organic montmorillonite slurry. 1.2166 g of the above-prepared organic montmorillonite slurry was dried at 105±5° C. for 2 hours to obtain a dry organic montmorillonite. The concentration of the organic montmorillonite prepared above is...

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Abstract

The present invention relates to nano material technology, especially, hydrophilic nano montmorillonite and its preparation. The hydrochloric acid solution of organic intercalating agent is added to the water solution of sodium-base montmorillonite with charge exchange amount of 80-100 mmol / 100 g to prepare organic montmorillonite slurry with the molar charge exchange amount ratio between the organic intercalating agent and montmorillonite being 1-2. Modifiying agent in the molar amount of 1-4 time that of the added organic intercalating agent is added to the slurry via stirring at 40-80 deg.c for 3-6 hr to obtain the hydrophilic nano montmorillonite comprising montmorillonite and organic intercalating agent in the weight ratio of 1-10.

Description

technical field [0001] The invention belongs to the field of nanometer materials, in particular to hydrophilic nanometer montmorillonite and a preparation method thereof. Background technique [0002] Nanotechnology has made considerable progress since its appearance in the 1980s, especially nano-montmorillonite has been widely used in nanomaterials. But almost all reports about nano-montmorillonite are about the application of nano-montmorillonite in engineering plastics, such as patent application number 96105362 "a polyamide / clay nanocomposite and its preparation method"; patent application number 98103038 "Polystyrene / clay nanocomposite material and its preparation method"; patent application No. 98117488 "polypropylene / montmorillonite intercalation composite material and its preparation method" are all about the application of montmorillonite in nanomaterials Discussions have been carried out, and it is described in detail in these patent applica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C3/08
Inventor 史艳林江雷马咏梅
Owner 烟台华实科技开发有限公司
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