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Method for preparing nano coating additive emulsion with flame-retarding characteristic

A nano-coating and additive technology, which is applied in the direction of coating, etc., can solve the problems of inability to be popularized on a large scale and high price, and achieve the effect of good coating effect, good compatibility and uniform particle size

Inactive Publication Date: 2007-06-13
CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, silane and titanate coupling agents are expensive and are only used in some special fields, so they cannot be popularized on a large scale

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] To prepare modified silicon dioxide, ethyl orthosilicate, water, ammonia water, and absolute ethanol were used as raw materials in a molar ratio of 1:5:5:20, and reacted at 30° C. for 1 hour to obtain silicon dioxide particles. Add oleic acid dropwise into the above reaction emulsion, the mass ratio of oleic acid to silicon dioxide is 0.05:1, continue to stir for 5 hours, centrifuge / wash the product repeatedly three times, and dry it in an oven to obtain surface-modified silicon dioxide Powder.

Embodiment 2

[0027] To prepare modified silica, ethyl orthosilicate, water, ammonia water, and absolute ethanol were used as raw materials in a molar ratio of 1:5:5:50, and reacted at 40°C for 2 hours to obtain silica particles. Add oleic acid dropwise into the above reaction emulsion, the mass ratio of oleic acid to silicon dioxide is 0.1:1, continue to stir for 5 hours, centrifuge / wash the product repeatedly three times, and dry in an oven to obtain surface-modified silicon dioxide Powder.

Embodiment 3

[0029] To prepare modified silica, ethyl orthosilicate, water, ammonia water, and absolute ethanol were used as raw materials in a molar ratio of 1:10:5:20, and reacted at 30° C. for 3 hours to obtain silica particles. Add oleic acid dropwise into the above reaction emulsion, the mass ratio of oleic acid to silicon dioxide is 0.05:1, continue to stir for 2 hours, centrifuge / wash the product repeatedly three times, and dry it in an oven to obtain surface-modified silicon dioxide Powder.

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PUM

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Abstract

This invention is related to a kind of nano additive emulsion to coatings characteristic of fire retardant and its preparation method. The said method is that using the modified inorganic particles as 'seeds'in the water solution, adding wetting agent, buffering agent and functioned styrene monomer, initiating the polyreaction system, and then obtaining inorganic and organic nano composite emulsion. The said preparation method used in this invention is universal. The said composite has characteristic of fire retardant and can be used as an additive to coatings to improve the function and performance of the coatings and enhance the added value of the products.

Description

technical field [0001] The invention relates to a preparation method of a nano coating additive emulsion with flame retardant properties. Background technique [0002] Additives are one of the raw materials of coatings. Adding a small amount can greatly improve the efficacy and performance of coatings, and can also improve the performance of coating films and increase the added value of products. The coating film has various properties and special effects, and the use of characteristic additives is the key to the technology. [0003] Most of the paint coatings are flammable or combustible materials, and when burning, the heat release rate is high, the calorific value is high, the flame spreads quickly, and it is not easy to extinguish. At the same time, it will also produce dense smoke and toxic gases, which have a great impact on people's life safety. threaten. Therefore, how to improve the flame retardancy of polymer materials has become an urgent problem to be solved. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D7/12C08L25/06C08K7/06
Inventor 牛利丁雪峰丁万君许晓宇张齐贤王晓丹
Owner CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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