Silicone exfoliated organo montmorillonite and preparation method thereof

A technology of organic montmorillonite and inorganic montmorillonite, applied in chemical instruments and methods, inorganic chemistry, silicon compounds, etc. The effect of uniform diameter distribution

Inactive Publication Date: 2009-11-11
SHANGHAI UNIV OF ENG SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented method involves making an organophillum type clay called Montmorillonites by combining specific atoms together through strong interactions between them (Si - H) which makes these materials stick better when used for various applications like adhesives. These properties allow this material to perform well on different types of plastics while still maintaining its effectiveness over time.

Problems solved by technology

This patented technical problem addressed by this patents relates to modifying or improving certain types of natural substances like clay through various methods that involve adding specific molecules called functional groups on their surfaces. These modifications are important because they improve physical properties and reduce costs compared to existing techniques involving expensive raw ingredients.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Prepare an ethanol aqueous solution with a volume concentration of 30%, raise the temperature to 70°C, add hydroxymethyl dodecyl ammonium chloride and inorganic montmorillonite, and react at 80°C for 2 hours;

[0019] The amount of hydroxymethyldodecylammonium chloride added is 40% of the volume of the ethanol aqueous solution;

[0020] The concentration of inorganic montmorillonite in the ethanol aqueous solution is 1g / ml;

[0021] Add hydrogen-containing silicone oil and react at 90°C for 2h;

[0022] The amount of hydrogen-containing silicone oil added is 10% of the volume of the ethanol aqueous solution;

[0023] After the product is washed with water, it is kept at 80° C. for 3 hours, which is the exfoliated nano-level organic montmorillonite of the present invention. The average particle size of the product is shown in Table 1.

Embodiment 2

[0025] Prepare an ethanol aqueous solution with a volume concentration of 35%, raise the temperature to 72°C, add aminomethyloctadecylammonium chloride and inorganic montmorillonite, and react at 82°C for 1.8h;

[0026] The amount of aminomethyloctadecylammonium chloride added is 45% of the volume of the ethanol aqueous solution;

[0027] The concentration of inorganic montmorillonite in the ethanol aqueous solution is 2g / ml;

[0028] Add methyl hydrogen silicone oil and react at 92°C for 1.8h;

[0029] The amount of methyl hydrogen silicone oil added is 15% of the volume of the ethanol aqueous solution;

[0030] After the product is washed with water, it is kept at 82° C. for 2.5 hours, which is the exfoliated nano-level organic montmorillonite of the present invention. The average particle size of the product is shown in Table 1.

Embodiment 3

[0032] Prepare an ethanol aqueous solution with a volume concentration of 40%, and heat to 75°C; add bis(2-hydroxyethyl)methyldodecylammonium chloride and inorganic montmorillonite, and react at 85°C for 1.5h;

[0033] The addition amount of bis(2-hydroxyethyl)methyldodecylammonium chloride is 50% of the volume of the ethanol aqueous solution;

[0034] The concentration of inorganic montmorillonite in the ethanol aqueous solution is 3g / ml;

[0035] Add ethyl hydrogen-containing silicone oil and react at 95°C for 1.5h;

[0036] The amount of ethyl hydrogen-containing silicone oil added is 20% of the volume of the ethanol aqueous solution;

[0037] After the product is washed with water, it is kept at 85°C for 2 hours, which is the exfoliated nano-level organic montmorillonite of the present invention.

[0038] The average particle size of the product is shown in Table 1.

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Abstract

The invention provides a silicone-containing exfoliated organo montmorillonite and a preparation method thereof. The preparation method comprises the following steps of: (1) adding the mixture of organic intercalation and inorganic montmorillonite to ethanol water for reaction, wherein the organic intercalation is selected from hydroxymethyl dodecyl ammonium chloride, amidocyanogen methyl octadecyl ammonium chloride, double (2-hydroxyethyl group) methyl dodecyl ammonium chloride or double (2-amidocyanogen) methyl octadecyl ammonium chloride; and (2) adding silicon oil to product of step (1) for reaction and collecting silicone exfoliated organo montmorillonite from the product of the reaction. The prepared silicone exfoliated organo montmorillonite can be directly applied to processes of manufacturing polymers such as silastic and the like, and fussy solution and meltdown intercalation can be avoided; size distribution of lamina is equal and the distribution range of size distribution is between 50 and 90 nm; the preparation process is simple and can be easily carried out; and the manufacturing cost is low.

Description

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Claims

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Application Information

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Owner SHANGHAI UNIV OF ENG SCI
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