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Organo-silicon and inorgano-silicon nano-composite and its prepn process

A nanocomposite and organosilicon technology, which is applied in the field of organosilicon-inorganic silicon nanocomposites, can solve the problems of losing application characteristics and nano-silicon dioxide characteristics

Inactive Publication Date: 2004-09-29
赵金良
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional modification method is either to coat the material to be modified, or to seal the active points / active groups on the particle surface, which will not only lose the characteristics of nano-silica, but also lose its application characteristics

Method used

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  • Organo-silicon and inorgano-silicon nano-composite and its prepn process
  • Organo-silicon and inorgano-silicon nano-composite and its prepn process
  • Organo-silicon and inorgano-silicon nano-composite and its prepn process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] 1) Feeding and heating. Take 10kg of water and 45kg of fatty acid, add them into the reaction kettle A respectively, and heat up to 80°C.

[0053] 2) Decomposition and its reaction. Take 45 kg of sodium silicate with a modulus of 1.5, and add it to step (1) reaction kettle A. The sodium silicate will decompose and react with acid to generate sodium fatty acid and silica sol respectively.

[0054] 3) scattered. Continue heating to 105°C, causing the silica sol to disperse into the sodium fatty acid sodium from bottom to top, finally forming a uniform dispersion.

[0055] 4) Decomposition reaction. During the dispersion process, the fatty acid sodium decomposes due to heating.

[0056] 5) Hydrolysis and condensation reactions. Take 100kg of water and add it to reactor B, the water temperature is 6°C, then add the dispersion in step (4) to reactor B of this step, and immediately hydrolyze and condense to produce nano-SiO 2 and silicone [(RCOO) 4 Si].

[0057] 6) Co...

Embodiment 2

[0063] 1) Feeding and heating. Take 90kg of water and 5kg of fatty acid, add to the reaction kettle and heat to 50°C.

[0064] 2) Decomposition and its reaction. Take 5kg of sodium silicate whose modulus is 2, and the rest are the same as Example 1.

[0065] 3) scattered. Heating to 100°C, the rest are the same as Example 1.

[0066] 4) Decomposition reaction. Same example 1.

[0067] 5) Hydrolysis and condensation reactions. Get water 1000kg, water temperature is 14 ℃, all the other are with example 1.

[0068] 6) Copolymerization and compounding. Same example 1.

[0069] 7) dealkalization. Same example 1.

[0070] 8) Aging treatment. Aged for 48 hours.

[0071] 9) Compression. Same example 1.

[0072] 10) drying. Drying temperature is 90~100 ℃, all the other are the same as Example 1.

Embodiment 3

[0074] 1) Feeding and heating. Get water 40kg, fatty acid 30kg, add in the reactor respectively, heat up to 60 ℃, all the other are the same as Example 1.

[0075] 2) Decomposition and its reaction. Get the sodium silicate 30kg that modulus is 2.5, all the other are the same as example 1.

[0076] 3) scattered. Heating to 110°C, the rest are the same as Example 1.

[0077] 4) Decomposition reaction. The rest are the same as example 1.

[0078] 5) Hydrolysis and condensation reactions. Get water 500kg, water temperature is 22 ℃, all the other are with example 1.

[0079] 6) Copolymerization and compounding. Same example 1.

[0080] 7) dealkalization. Same example 1.

[0081] 8) Aging treatment. Aged for 28 hours.

[0082] 9) Compression. Same example 1.

[0083] 10) drying. Drying temperature is 70~80 ℃, all the other are the same as Example 1.

[0084] project

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Abstract

A nanometer organo-silicon and inorgano-silicon composite is prepared with fatty acid 5-45%, sodium silicate 5-45% and water the rest and through ten steps including charging and heating, decomposition, dispersion, hydrolysis, polymerization, etc. The present invention has the advantages of rich material source, low cost, simple production process, and good economic and social benefits.

Description

technical field [0001] The invention relates to the technical field of organosilicon-inorganic silicon nanocomposites. Background technique [0002] Organosilicon-inorganic silicon nanocomposites are new materials that integrate many specific properties of organic, inorganic and nano-particles, especially the interface characteristics of inorganic and organic, which make them have a wide range of application prospects. Japan and other developed countries have attached great importance to its development and formulated corresponding development plans. [0003] Due to the small size of nano-silica particles, which are too small to be seen by ordinary microscopes, the specific surface area is large, and the activity is high, there are technical difficulties in application. Among them, there are three biggest problems: First, how to disperse them into the application system? The second is how to solve the agglomeration and flocculation after adding it ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G83/00
Inventor 赵金良
Owner 赵金良