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Quaternary ammonium cation and quaternary phosphonium cation-containing modified clay, its preparation and application

A technology of quaternary phosphonium cations and quaternary ammonium cations, applied in the field of modified clay and its preparation, to achieve good stability, improved antibacterial, and excellent weather resistance

Active Publication Date: 2012-12-12
JINAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] From the above analysis, it can be seen that quaternary ammonium cation modified clay and quaternary phosphonium cation modified clay have their own advantages and disadvantages. , illite, rectorite) layers, a new type of organic cation modified clay will be obtained, and there is no relevant report on this type of material

Method used

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  • Quaternary ammonium cation and quaternary phosphonium cation-containing modified clay, its preparation and application
  • Quaternary ammonium cation and quaternary phosphonium cation-containing modified clay, its preparation and application
  • Quaternary ammonium cation and quaternary phosphonium cation-containing modified clay, its preparation and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Add 10g of sodium montmorillonite (CEC: 120mmol / 100g) into 115mL of water, stir at 40°C for 0.5h to disperse into a 8wt% suspension, then add 6mmol tetradecyltributylammonium chloride and 6mmol Dodecyltributylphosphonium bromide was added to the above solution, stirred and reacted at 60°C for 4h, then filtered, and the collected solids were washed with 50wt% ethanol aqueous solution (50°C) until the filtrate was detected by silver nitrate solution. Halide ions, dried in an air atmosphere at 110°C for 24 hours, and then ultrafinely crushed to an average particle size of less than 10 μm (measured by a laser particle size analyzer), to obtain a modified montmorillonite containing quaternary ammonium cations and quaternary phosphonium cations; the comparison test is Add 12mmol tetradecyltributylammonium chloride and 12mmol dodecyltributylphosphonium bromide respectively, and the other conditions are the same. The analysis and test results are shown in Table 1.

Embodiment 2

[0054] Add 10g of sodium-based vermiculite (120mmol / 100g of CEC) into 115mL of water, stir at 40°C for 0.5h to disperse into a 8wt% suspension, then add 6mmol of dedecyltrimethylammonium bromide and 6mmol of cetyl Alkyltributylphosphonium chloride was added to the above solution, stirred and reacted at 60°C for 4h, then filtered, and the collected solids were washed with 50wt% ethanol aqueous solution (50°C) until the filtrate was detected to be free of halogen ions with silver nitrate solution , dried in an air atmosphere at 110°C for 24 hours, and then ultrafinely pulverized to an average particle size of less than 10 μm (measured by a laser particle size analyzer), to obtain modified vermiculite containing quaternary ammonium cations and quaternary phosphonium cations; the comparison test was to add 12 mmol Decyltrimethylammonium bromide, 12mmol hexadecyltributylphosphonium chloride, and other conditions were tested the same. The analysis and test results are shown in Table...

Embodiment 3

[0056] Add 10g of sodium-based attapulgite (CEC: 85mmol / 100g) into 115mL of water, stir at 40°C for 0.5h to disperse into a 8wt% suspension, then add 4.25mmol of cetyltributylammonium chloride and Add 4.25mmol of dedecyltriphenylphosphonium bromide to the above solution, stir and react at 60°C for 4h, then filter, and wash the collected solids with 50wt% ethanol aqueous solution (50°C) until the filtrate is detected with silver nitrate solution Halogen-free, dried in an air atmosphere at 110°C for 24 hours, and then ultra-finely crushed to an average particle size of less than 10 μm (measured by a laser particle size analyzer), to obtain a modified attapulgite containing quaternary ammonium cations and quaternary phosphonium cations; comparative test 8.5mmol cetyltributylammonium chloride and 8.5mmol dedecyltriphenylphosphonium bromide were added respectively, and the other conditions were the same. The analysis and test results are shown in Table 1.

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Abstract

Belonging to the field of organic-inorganic hybrid materials, the invention provides a quaternary ammonium cation and quaternary phosphonium cation-containing organic cation modified clay, its preparation method and application. The preparation method comprises: reacting a suspending solution of a sodium base treated clay mineral with quaternary ammonium cations and quaternary phosphonium cations, conducting filtering, washing, drying and crushing, thus obtaining the quaternary ammonium cation and quaternary phosphonium cation-containing organic cation modified clay with a synergistic effect. The organic cation modified clay provided in the invention has good stability, excellent weather resistance, and no toxicity. The organic cation modified clay contains quaternary ammonium cation modified clay and quaternary phosphonium cation modified clay simultaneously, and shows a synergistic antibacterial activity, so that it can be applied to plastics, rubber, fibers, coatings, adhesives, paper, wood-plastic composite materials and a variety of polymer materials to improve the antibacterial property, the flame retardance and the barrier property of polymers, and has no influence on the mechanical properties of the polymers.

Description

technical field [0001] The invention relates to the field of organic-inorganic hybrid materials, in particular to a modified clay containing quaternary ammonium cations and quaternary phosphonium cations, a preparation method and application thereof. Background technique [0002] Organic cations refer to the ionic forms in which the hydrophobic groups in organic molecules are connected to positively charged hydrophilic groups through covalent bonds to achieve a relatively stable structure. Due to its special structure, organic cations exhibit unique properties such as antistatic, bactericidal, and softness, and are widely used in papermaking, oil fields, water treatment, washing, etc., and have good social and economic benefits. Common organic cations include quaternary ammonium salt ions, quaternary phosphonium salt ions, imidazolium salt ions and pyrrole salt ions, among which quaternary ammonium salt ions and quaternary phosphonium salt ions are the most commonly used, wi...

Claims

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Application Information

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IPC IPC(8): C09C1/42C09C3/08D21H17/69C08K9/04C08K3/34C08K3/22D01F1/10C09D7/12
Inventor 谭绍早蔡祥徐鼎峰黄浪欢张秀菊林志丹麦文杰
Owner JINAN UNIVERSITY
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