Preparation method and application of sol dispersion liquid

A technology of dispersion liquid and sol, which is applied in the field of silica sol, can solve the problems of high specific surface area, surface energy, poor compatibility and dispersibility of silica particles and polymers, etc., so as to improve conductivity stability, improve mechanical strength and comprehensive Performance, the effect of improving reactivity

Inactive Publication Date: 2018-09-28
TAICANG MIX MACHINERY EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the properties of hydrophilicity, large specific surface area and high surface energy, the compatibility and dispersion of silica particles and polymers are poor.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The preparation of the sol dispersion liquid of the embodiment of the present invention, the preparation method comprises the following steps:

[0026] (1) Take 0.3 part of zinc ricinoleate, add it to 15 times the weight of absolute ethanol, stir evenly, add 2 parts of silane coupling agent kh560, raise the temperature to 55 ° C, keep stirring for 2 hours, and obtain epoxy Silanol solution;

[0027] (2) Take 2 parts of ammonium polyphosphate, add it to deionized water 30 times its weight, add 1 part of propyl gallate, stir evenly, and obtain a water dispersion;

[0028] (3) Take 50 parts of tetraethyl orthosilicate, add it to the above water dispersion, stir evenly, mix with the above epoxy silanol solution, stir and react for 4 hours, distill off ethanol to obtain the sol dispersion.

Embodiment 2

[0030] The preparation of the sol dispersion liquid of the embodiment of the present invention, the preparation method comprises the following steps:

[0031] (1) Take 0.1 part of zinc ricinoleate, add it to 10 times its weight in absolute ethanol, stir evenly, add 1 part of silane coupling agent kh560, raise the temperature to 50°C, and keep stirring for 1 hour to obtain epoxy Silanol solution;

[0032] (2) Take 1 part of ammonium polyphosphate, add it to 20 times its weight in deionized water, add 0.3 part of propyl gallate, stir evenly, and obtain a water dispersion;

[0033] (3) Take 40 parts of tetraethyl orthosilicate, add it to the above water dispersion, stir evenly, mix with the above epoxy silanol solution, stir and react for 3 hours, distill off ethanol to obtain the sol dispersion.

Embodiment 3

[0035] The preparation of the sol polyaniline film of the embodiment of the present invention, the preparation method comprises the following steps:

[0036] (1) Take 2 parts of 8-hydroxyquinoline and 0.4 parts of butyltin mercaptide, mix them, add them to chloroform which is 4 times the weight of the mixture, and ultrasonicate for 20 minutes to obtain a chloroform solution;

[0037] (2) Take 5 parts of ammonium persulfate, add it to deionized water 30 times its weight, and stir evenly to obtain an aqueous solution of ammonium persulfate;

[0038] (3) Take 5 parts of trichloroisocyanuric acid, mix it with 160 parts of aniline, add it to deionized water 15 times the weight of the mixture, stir evenly, send it into the reaction kettle, feed nitrogen gas, and adjust the temperature of the reaction kettle to 70 ℃, add ammonium persulfate aqueous solution, keep warm and stir for 4 hours, add the above chloroform solution, stir and react for 2 hours, discharge and cool to obtain pol...

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Abstract

The invention belongs to the technical field of silicon sol, and particularly relates to a preparation method and application of sol dispersion liquid. The preparation method comprises the following steps of (1) selecting zinc diricinoleate, adding into anhydrous ethyl alcohol, uniformly stirring, adding a silane coupling agent KH560, warming and stirring, so as to obtain an epoxy silane alcohol solution; (2) selecting ammonium polyphosphate, adding into deionized water, adding propylgallate, and uniformly stirring, so as to obtain water dispersion liquid; (3) selecting tetraethoxysilane, adding into the water dispersion liquid, uniformly stirring, mixing with the epoxy silane alcohol solution, stirring to react, and distilling to remove ethyl alcohol, so as to obtain the sol dispersion liquid. The sol dispersion liquid has the advantages that the silane coupling agent KH560 is used as epoxy silane, the tetraethoxysilane is used as a precursor, the ammonium polyphosphate aqueous solution is used as the dispersion liquid, the tetraethoxysilane is hydrolyzed, and the obtained sol is modified by the epoxy silane, so as to obtain the epoxy modified sol; after modifying, the reaction activity at the surface of the sol can be effectively improved.

Description

technical field [0001] The invention belongs to the technical field of silica sol, and in particular relates to a preparation method and application of a sol dispersion. Background technique [0002] Silica sol is a dispersion of nano-silica particles in the range of 1-100 nanometers in water or other organic solvents. It has the characteristics of uniform particles, non-toxic and pollution-free, large specific surface area, high reactivity, adsorption capacity and adhesion Strong performance and other advantages, widely used in architectural coatings, precision casting, refractory coatings and many other industries. Silica particles in silica sol have gradually become a hot spot in the field of material science research because of their excellent properties such as high strength, high rigidity, ability to absorb ultraviolet rays, and non-toxicity. However, due to the properties of hydrophilicity, large specific surface area and high surface energy, the compatibility and di...

Claims

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Application Information

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IPC IPC(8): C08K13/06C08K9/04C08K9/06C08K3/36C08K3/32C08J5/18C08L79/02C08G73/02B01J13/00
Inventor 杨阳张宇
Owner TAICANG MIX MACHINERY EQUIP CO LTD
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